Summary of Significant Accounting Policies (Policies)	12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]
Consolidation	Consolidation The “Partnership,” as used herein, includes Greystone Housing Impact Investors LP, its consolidated subsidiaries and consolidated variable interest entities (Note 5). All intercompany transactions are eliminated. The consolidated subsidiaries of the Partnership for the periods presented consist of: • ATAX TEBS I, LLC, a special purpose entity owned and controlled by the Partnership, created to hold MRBs to facilitate the M24 Tax-Exempt Bond Securitization (“TEBS”) Financing (“M24 TEBS Financing”) with the Federal Home Loan Mortgage Corporation (“Freddie Mac”); • ATAX TEBS II, LLC, a special purpose entity owned and controlled by the Partnership, created to hold MRBs to facilitate the “M31 TEBS Financing” with Freddie Mac; • ATAX TEBS III, LLC, a special purpose entity owned and controlled by the Partnership created to hold MRBs to facilitate the “M33 TEBS Financing” with Freddie Mac; • ATAX TEBS IV, LLC, a special purpose entity owned and controlled by the Partnership created to hold MRBs to facilitate the “M45 TEBS Financing” with Freddie Mac; • ATAX TEBS Holdings, LLC, a wholly owned subsidiary of the Partnership, which has issued secured notes (“the Secured Notes”) to Mizuho Capital Markets LLC (“Mizuho”); • ATAX Vantage Holdings, LLC, a wholly owned subsidiary of the Partnership, which is committed to provide equity for the development of multifamily properties; • ATAX Freestone Holdings, LLC, a wholly owned subsidiary of the Partnership, which is committed to provide equity for the development of multifamily properties; • One wholly owned corporation (“the Greens Hold Co”), which owned 100% of The 50/50 MF Property, a real estate asset, and certain property loans; and • Lindo Paseo LLC, a wholly owned limited liability company, which owns 100% of the Suites on Paseo MF Property. The Partnership also consolidates variable interest entities (“VIEs”) in which the Partnership is deemed to be the primary beneficiary.
Use of Estimates in Preparation of Consolidated Financial Statements	Use of Estimates in Preparation of Consolidated Financial Statements The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires the Partnership to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The most significant estimates and assumptions include those used in determining: (i) the fair value of MRBs and taxable MRBs; (ii) investment impairments; (iii) impairment of real estate assets; and (iv) allowances for loan losses.
Risks and Uncertainties	Risks and Uncertainties The Federal Reserve announced seven increases in short-term interest rates totaling 425 basis points during 2022 and an additional 25 basis point increase in February 2023. The Federal Reserve has signaled further future short-term interest rate increases to combat inflation in the broader economy. In addition, geopolitical conflicts continue to impact the general global economic environment. These factors have caused volatility in the fixed income markets, which has impacted the value of some of the Partnership’s investment assets, particularly those with fixed interest rates. In addition, increases in short-term interest rates will generally result in increases in the interest cost associated with the Partnership’s variable rate debt financing arrangements and for construction debt of properties underlying our investments in unconsolidated entities. The extent to which general economic, geopolitical, and financial conditions will impact the Partnership’s financial condition or results of operations in the future is uncertain and actual results and outcomes could differ from current estimates. The current inflationary environment in the United States may increase operating expenses at properties securing the Partnership’s investments and general operations, which may reduce net operating results of the related properties and result in lower debt service coverage or higher than anticipated capitalized interest requirements for properties under construction. Such occurrences may negatively impact the value of the Partnership’s investments. Higher general and administrative expenses of the Partnership and real estate operating expenses of the MF Properties may adversely affect the Partnership’s operating results, including a reduction in net income. Furthermore, the potential for an economic recession either globally or locally in the U.S. or other economies could further impact the valuation of our investment assets, limit the Partnership’s ability to obtain additional debt financing from lenders, and limit opportunities for additional investments.
Variable Interest Entities	Variable Interest Entities Under the accounting guidance for consolidation, the Partnership evaluates entities in which it holds a variable interest to determine if the entities are VIEs and if the Partnership is the primary beneficiary. The entity that is deemed to have: (1) the power to direct the activities of a VIE that most significantly impact the entity’s economic performance; and (2) the obligation to absorb losses of the entity that could potentially be significant to the VIE or the right to receive benefits from the entity that could potentially be significant to the VIE, is considered the primary beneficiary. If the Partnership is deemed to be the primary beneficiary, then it will consolidate the VIEs in its consolidated financial statements. The Partnership has consolidated all VIEs in which it has determined it is the primary beneficiary. In the Partnership’s consolidated financial statements, all transactions and accounts between the Partnership and the consolidated VIEs have been eliminated in consolidation. The Partnership re-evaluates its accounting for VIEs at each reporting date based on events and circumstances at the VIEs. As a result, changes to the consolidated VIEs may occur in the future based on changes in circumstances. The accounting guidance on consolidations is complex and requires significant analysis and judgment. The Partnership does not believe that the consolidation of VIEs for reporting under GAAP impacts its status as a partnership for federal income tax purposes or the status of Unitholders as partners of the Partnership. In addition, the consolidation of VIEs is not expected to impact the treatment of the MRBs, GILs and property loans owned by consolidated VIEs, the tax-exempt nature of the interest payments on secured debt financings, or the manner in which the Partnership’s income is reported to Unitholders on IRS Schedule K-1. Accounting for TOB, Term TOB, and TEBS Financing Arrangements The Partnership has evaluated the accounting guidance related to its TOB (“Tender Option Bond”), term TOB, and TEBS financings and has determined that the securitization transactions do not meet the accounting criteria for a sale or transfer of financial assets and therefore are accounted for as secured financing transactions. More specifically, the guidance on transfers and servicing sets forth the conditions that must be met to de-recognize a transferred financial asset. This guidance provides, in part, that the transferor has surrendered control over transferred assets if and only if the transferor does not maintain effective control over the transferred assets. The financing agreements contain certain provisions that allow the Partnership to unilaterally cause the holder to return the securitized assets, other than through a cleanup call. Based on these terms, the Partnership has concluded that the Partnership has not transferred effective control over the transferred assets and, as such, the transactions do not meet the conditions to de-recognize the transferred assets. In addition, the Partnership has evaluated the securitization trusts associated with the TOB, term TOB, and TEBS financings in accordance with guidance on consolidation of VIEs. See Note 5 for the consolidation analysis related to these secured financing arrangements. The Partnership is deemed to be the primary beneficiary of these securitization trusts and consolidates the assets, liabilities, income and expenses of the securitization trusts in the Partnership’s consolidated financial statements. The Partnership recognizes interest expense for fixed-rate TEBS financings with escalating stated interest rates using the effective interest method over the estimated term of the arrangement.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include highly liquid securities and investments in federally tax-exempt securities with maturities of three months or less when purchased.
Concentration of Credit Risk	Concentration of Credit Risk The Partnership maintains the majority of its unrestricted cash balances at three financial institutions. The balances insured by the Federal Deposit Insurance Corporation are equal to $250,000 at each institution. At various times the cash balances have exceeded the $250,000 limit. The Partnership may from time to time invest in short-term investment grade securities. The Partnership is exposed to risk on its short-term investments in the event of non-performance by counterparties, though such risk is minimal and the Partnership does not anticipate any non-performance.
Restricted Cash	Restricted Cash Restricted cash is legally restricted as to its use. The Partnership has been required to maintain restricted cash collateral related to one secured line of credit (Note 14) and the total return swap transaction (Note 17). In addition, the Partnership is required to maintain restricted cash balances related to the TEBS Financing facilities (Note 15), resident security deposits, required maintenance reserves, escrowed funds, and property rehabilitation. Restricted cash is presented with cash and cash equivalents in the consolidated statements of cash flows.
Investments in Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds	Investments in Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds The Partnership accounts for its investments in MRBs and taxable MRBs under the accounting guidance for certain investments in debt and equity securities. The Partnership’s investments in these instruments are classified as available-for-sale debt securities and are reported at their estimated fair value. The net unrealized gains or losses on these investments are reflected on the Partnership’s consolidated statements of comprehensive income. Unrealized gains and losses do not affect the cash flow of the bonds, distributions to Unitholders, or the characterization of the interest income. See Note 23 for a description of the Partnership’s methodology for estimating the fair value of MRBs and taxable MRBs. The Partnership periodically reviews its MRBs and taxable MRBs for impairment. The Partnership evaluates whether unrealized losses are considered other-than-temporary impairments based on various factors including, but not necessarily limited to, the following: • The duration and severity of the decline in fair value; • The Partnership’s intent to hold and the likelihood of it being required to sell the security before its value recovers; • Adverse conditions specifically related to the security, its collateral, or both; • Volatility of the fair value of the security; • The likelihood of the borrower being able to make scheduled interest and principal payments; • Failure of the borrower to make scheduled interest or principal payments; and • Recoveries or additional declines in fair value after the balance sheet date. While the Partnership evaluates all available information, it focuses specifically on whether the security’s estimated fair value is below amortized cost. If a MRB’s estimated fair value is below amortized cost, and the Partnership has the intent to sell or may be required to sell the MRB prior to the time that its value recovers or until maturity, the Partnership will record an other-than-temporary impairment through earnings equal to the difference between the MRB’s carrying value and its fair value. If the Partnership does not expect to sell an other-than-temporarily impaired MRB, only the portion of the other-than-temporary impairment related to credit losses is recognized through earnings as a provision for credit loss, with the remainder recognized as a component of other comprehensive income. In determining the provision for credit loss, the Partnership compares the present value of cash flows expected to be collected to the MRB’s amortized cost basis. The recognition of other-than-temporary impairment, provision for credit loss, and the potential impairment analysis are subject to a considerable degree of judgment, the results of which, when applied under different conditions or assumptions, could have a material impact on the Partnership’s consolidated financial statements. If the Partnership experiences deterioration in the values of its MRB portfolio, the Partnership may incur other-than-temporary impairments or provision for credit losses that could negatively impact the Partnership’s financial condition, cash flows, and reported earnings. The Partnership periodically reviews any previously impaired MRBs for indications of a recovery of value. If a recovery of value is identified, the Partnership will accrete the recovery of prior credit losses into investment income over the remaining term of the MRB. Investments in Governmental Issuer Loans and Taxable Governmental Issuer Loans The Partnership accounts for its investment in governmental issuer loans (“GILs”) and taxable GILs under the accounting guidance for certain investments in debt and equity securities. The Partnership’s investment in these instruments are classified as held-to-maturity debt securities and are reported at amortized cost. The Partnership periodically reviews its GILs and taxable GILs for impairment. The Partnership evaluates whether unrealized losses are considered other-than-temporary impairments based on various factors including, but not necessarily limited to, the following: • The duration and severity of the decline in fair value; • The Partnership’s intent to hold and the likelihood of it being required to sell the security before its value recovers; • Adverse conditions specifically related to the security, its collateral, or both; • Volatility of the fair value of the security; • The likelihood of the borrower being able to make scheduled interest and principal payments; • The failure of the borrower to make scheduled interest or principal payments; and • Recoveries or additional declines in fair value after the balance sheet date. While the Partnership evaluates all available information, it focuses specifically on whether the security’s estimated fair value is below amortized cost. If the estimated fair value of a GIL or taxable GIL is below amortized cost, and the Partnership does not expect to recover its entire amortized cost, only the portion of the other-than-temporary impairment related to credit losses is recognized through earnings as a provision for credit loss, with the remainder recognized as a component of other comprehensive income. The recognition of other-than-temporary impairment, provision for credit loss, and the potential impairment analysis are subject to a considerable degree of judgment, the results of which, when applied under different conditions or assumptions, could have a material impact to the Partnership’s consolidated financial statements. If the Partnership experiences deterioration in the value of its GILs or taxable GILs, the Partnership may incur other-than-temporary impairments or provision for credit losses that could negatively impact the Partnership’s financial condition, cash flows, and reported earnings. Real Estate Assets The Partnership’s investments in real estate are carried at cost less accumulated depreciation. Depreciation of real estate is based on the estimated useful life of the related asset, generally 19-40 years on multifamily and student housing residential apartment buildings, and five to 15 years on capital improvements. Depreciation expense is calculated using the straight-line method. Maintenance and repairs are charged to expense as incurred, while improvements, renovations, and replacements are capitalized. The Partnership also holds land held for investment and development which is reported at cost. The Partnership recognizes gains and losses equal to the difference between proceeds on sale and the net carrying value of the assets at the date of disposition. The Partnership reviews real estate assets for impairment periodically and whenever events or changes in circumstances indicate that the carrying value of a property may not be recoverable. When indicators of potential impairment suggest that the carrying value of a real estate asset may not be recoverable, the Partnership compares the carrying amount of the real estate asset to the undiscounted net cash flows expected to be generated from the use of the asset. If the carrying value exceeds the undiscounted net cash flows, an impairment loss is recorded to the extent that the carrying value of the property exceeds its estimated fair value. Investments in Unconsolidated Entities The Partnership accounts for its investments in unconsolidated entities under the equity method of accounting. Through ATAX Vantage Holdings, LLC and ATAX Freestone Holdings, LLC, the Partnership makes investments in non-controlling limited membership interests in entities formed to construct market-rate multifamily properties. The Partnership applies the equity method of accounting by initially recording these investments at cost, subsequently adjusted for accrued preferred returns, the Partnership’s share of earnings (losses) of the unconsolidated entities, cash contributions, and distributions. The Partnership reviews its investments in unconsolidated affiliates for impairment whenever events or changes in business circumstances indicate that the carrying amount of the investments may not be fully recoverable. Factors considered include: • The absence of an ability to recover the carrying amount of the investment; • The inability of the investee to sustain an earnings capacity that justifies the carrying amount of the investment; or • Estimated sales proceeds that are insufficient to recover the carrying amount of the investment. The Partnership’s assessment of whether a decline in value is other than temporary is based on the Partnership’s ability and intent to hold the investment and whether evidence indicating the carrying value of the investment is recoverable within a reasonable period of time outweighs evidence to the contrary. If the fair value of the investment is determined to be less than the carrying value and the decline in value is considered other than temporary, an impairment charge would be recorded equal to the excess of the carrying value over the estimated fair value of the investment. The Partnership earns a preferred return on its investments in Vantage properties that is guaranteed by an unrelated third party, which is also an affiliate of the unconsolidated entities. The term of the third-party guaranty is from the initial investment through a date approximately five years after commencement of construction. The Partnership recognizes its preferred return based upon the guaranty provided by the unrelated third-party, the guarantor’s financial ability to perform under the guaranty and the cash flows expected to be received from each property. Preferred returns are reported within “Investment income” on the Partnership’s consolidated statements of operations. The Partnership earns a preferred return on its investments in Freestone properties that is senior to the preferred return and return of capital of the other members of the unconsolidated entities. The Partnership recognizes its preferred return on each investment to the extent there is capital of the managing member of the unconsolidated entity to support the recognition of preferred return. Preferred returns are reported within “Investment income” on the Partnership’s consolidated statements of operations. In addition, the Partnership will recognize its share of earnings (losses) of the unconsolidated entities, when appropriate, and report within “Earnings (losses) from investments in unconsolidated entities” on the Partnership’s consolidated statements of operations. There are generally no earnings (losses) reported during the construction period for each unconsolidated entity as construction costs are capitalized.
Property Loans, Net	Property Loans, Net The Partnership invests in property loans made to the owners of certain multifamily, student housing and skilled nursing properties. Most of the property loans have been made to multifamily properties that secure MRBs and GILs owned by the Partnership. The Partnership recognizes interest income on the property loans as earned and the interest income is reported within “Other interest income” on the Partnership’s consolidated statements of operations. Interest income is not recognized for property loans that are deemed to be in nonaccrual status. Interest income is recognized upon the repayment of these property loans and accrued interest which is dependent largely on the cash flows or proceeds upon sale or refinancing of the related property. Property loans are reported net of loan loss allowances. The Partnership periodically evaluates property loans for potential impairment by estimating the fair value of the related property and comparing the fair value to the outstanding MRBs, GILs or other senior financing, plus the Partnership’s property loans. The Partnership also considers financing commitments, borrower equity commitments, guaranties by borrower affiliates, and construction progress when assessing property loans associated with GIL investments. The Partnership utilizes a discounted cash flow model that considers varying assumptions including multiple revenue and expense scenarios, various capitalization rates, and multiple discount rates. The Partnership may also consider other information such as independent appraisals in estimating a property’s fair value. If the estimated fair value of the related property, after deducting the amortized cost basis of the MRB, GIL or other senior financing, exceeds the principal balance of the property loan then no potential loss is indicated and no allowance for loan loss is recorded. If a potential loss is indicated, an allowance for loan loss is recorded against the outstanding loan amount and a loss is recognized. The determination of the need for an allowance for loan loss is subject to considerable judgment. See Note 10 for additional information on the Partnership’s property loan loss allowances.
Deferred Financing Costs	Deferred Financing Costs Debt financing costs are capitalized and amortized using the effective interest method through either the stated maturity date or the optional redemption date of the related debt financing agreement. Debt financing costs associated with revolving line of credit arrangements are reported within “Other assets” on the Partnership’s consolidated balance sheets. Deferred financing costs associated with debt financing and mortgages payable arrangements are reported as reductions to the carrying value of the related liability on the Partnership’s consolidated balance sheets.
Income Taxes	Income Taxes No provision has been made for income taxes of the Partnership as it is a partnership for federal income tax purposes such that profits and losses are allocated to Unitholders, except for certain entities described below. The distributive share of income, deductions and credits is reported to Unitholders on Internal Revenue Service (“IRS”) Schedule K-1. The Partnership pays franchise margin taxes on revenues in certain jurisdictions relating to property loans and investments in unconsolidated entities. The Greens Hold Co is a corporation that is subject to federal and state income taxes. The Partnership recognizes income tax expense or benefit for the federal and state income taxes incurred by this entity in its consolidated financial statements. The Partnership evaluates its tax positions on the consolidated financial statements under the accounting guidance for uncertain tax positions. The Partnership may recognize a tax benefit from an uncertain tax position only if the Partnership believes it is more likely than not that the tax position will be sustained on examination by taxing authorities. The Partnership accrues interest and penalties, if any, and reports them within “Income tax expense” on the Partnership’s consolidated statements of operations. Deferred income tax expense or benefit, is generally a function of the period’s temporary differences (items that are treated differently for tax purposes than for financial reporting purposes), such as depreciation, amortization of financing costs, etc. and the utilization of tax net operating losses (“NOLs”). The Partnership values its deferred tax assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The Partnership records a valuation allowance for deferred income tax assets if it believes all, or some portion, of the deferred income tax asset may not be realized. Any increase or decrease in the valuation allowance that results from a change in circumstances that causes a change in the estimated ability to realize the related deferred income tax asset is included in deferred income tax expense.
Investment Income from Investments in Mortgage Revenue Bonds and Governmental Issuer Loans	Investment Income from Investments in Mortgage Revenue Bonds and Governmental Issuer Loans The interest income received by the Partnership from its MRBs and GILs is dependent upon the net cash flow of the underlying properties. Interest income on fully performing MRBs and GILs is recognized as it is earned. Current and past due interest income on MRBs and GILs not fully performing is recognized as it is received. The Partnership reinstates the accrual of interest once the MRB’s or GIL’s ability to perform is adequately demonstrated. Interest income related to MRBs and GILs is reported within “Investment Income” and interest income related to taxable MRBs and taxable GILs is reported within “Other interest income” on the Partnership’s consolidated statements of operations. As of December 31, 2022 and 2021, all of the Partnership’s MRBs and GILs were fully performing and current on all interest payments, with the exception of the Provision Center 2014-1 MRB and forbearance granted to the borrower of the Live 929 Apartments MRBs until January 2022. Premiums on callable MRB investments are amortized as a yield adjustment to the earliest call date. Discounts on MRB investments are amortized as a yield adjustment to the stated maturity date. Amortization of premiums and discounts is reported within “Investment income” on the Partnership’s consolidated statements of operations. Bond origination costs are capitalized and amortized utilizing the effective interest method over the period to the stated maturity of the related MRB and taxable MRB investments. Bond origination costs are reported as an adjustment to the cost adjusted for paydowns and allowances of the related MRB in Note 6.
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities The Partnership reports interest rate derivatives on its consolidated balance sheets at fair value. The Partnership’s derivative instruments are not designated as hedging instruments for GAAP purposes and changes in fair value are reported within “Interest expense” on the Partnership’s consolidated statements of operations. The Partnership is exposed to loss upon defaults by its counterparties on its interest rate derivative agreements. The Partnership does not anticipate non-performance by any counterparty.
Redeemable Preferred Units	Redeemable Preferred Units The Partnership has designated three series of Preferred Units consisting of the Series A Preferred Units, the Series A-1 Preferred Units, and the Series B Preferred Units. The Partnership has issued Series A Preferred Units and Series A-1 Preferred Units, representing limited partnership interests in the Partnership to various financial institutions. The Series A Preferred Units and Series A-1 Preferred Units are recorded as mezzanine equity due to the holders’ redemption option which, if and when the units become subject to redemption, is outside the Partnership’s control. The costs of issuing the Series A Preferred Units and Series A-1 Preferred Units have been netted against the carrying value of the Series A Preferred Units and Series A-1 Preferred Units, and are amortized to the first redemption date. The Partnership will account for the Series B Preferred Units in a manner consistent with the Series A Preferred Units and Series A-1 Preferred Units if and when issued.
Beneficial Unit Certificates ("BUCs")	Beneficial Unit Certificates (“BUCs”) The Partnership has issued BUCs representing assigned limited partnership interests to investors. Costs related to the issuance of BUCs are recorded as a reduction to partners’ capital when issued. On April 1, 2022, the Partnership effected a one-for-three reverse unit split (“Reverse Unit Split”) of its outstanding BUCs. As a result of the Reverse Unit Split, holders of BUCs received one BUC for every three BUCs owned at the close of business on April 1, 2022. All fractional BUCs created by the Reverse Unit Split were rounded to the nearest whole BUC, with any fraction equal to or above 0.5 BUC rounded up to the next higher BUC, as provided by the Partnership Agreement. Immediately prior to the Reverse Unit Split, there were 66,049,908 BUCs issued and outstanding, and immediately after the Reverse Unit Split the number of issued and outstanding BUCs decreased to 22,017,915. In connection with the Reverse Unit Split, the CUSIP number for the BUCs changed to 02364V 206. The BUCs continue to trade on the NYSE under the trading symbol “GHI.” On September 14, 2022, the Partnership declared a supplemental distribution payable in the form of additional BUCs equal to $0.20 per BUC (the “Third Quarter BUCs Distribution”). The Third Quarter BUCs Distribution was paid at a ratio of 0.01044 BUCs for each issued and outstanding BUC as of the record date of September 30, 2022, which represents an amount per BUC based on the closing price of the BUCs on the Nasdaq Stock Market LLC on September 13, 2022, which was the national securities exchange upon which the BUCs were listed as of that date. The Third Quarter BUCs Distribution was completed on October 31, 2022. On December 19, 2022, the Partnership declared a supplemental distribution payable in the form of additional BUCs equal to $0.20 per BUC (the “Fourth Quarter BUCs Distribution”, collectively with the Third Quarter BUCs Distribution, the “BUCs Distributions”). The Fourth Quarter BUCs Distribution was paid at a ratio of 0.0105 BUCs for each issued and outstanding BUC as of the record date of December 30, 2022, which represents an amount per BUC based on the closing price of the BUCs on the NYSE on December 16, 2022. The Fourth Quarter BUCs Distribution was completed on January 31, 2023. There were no fractional BUCs issued in connection with the BUCs Distributions. All fractional BUCs resulting from the BUCs Distributions received cash for such fraction based on the market value of the BUCs on the record date. The one-for-three Reverse Unit Split and the BUCs Distributions have been applied retroactively to all net income per BUC, distributions per BUC and similar per BUC disclosures for all periods indicated in the Partnership’s consolidated financial statements.
Restricted Unit Awards ("RUA" or "RUAs")	Restricted Unit Awards (“RUA” or “RUAs”) On December 5, 2022, the Board of Managers of Greystone Manager approved the Amended and Restated Greystone Housing Impact Investors LP 2015 Equity Incentive Plan (the “Plan”) to reflect the Partnership’s new name. No material or other changes were made to the Plan. The Plan was approved by the BUC holders in September 2015and permits the grant of RUAs and other awards to the employees of Greystone Manager, or any affiliate, who performs services for Greystone Manager, the Partnership or an affiliate, and members of the Board of Managers of Greystone Manager. The Plan permits total grants of RUAs of up to 1.0 million BUCs, which reflects adjustments made to the number of BUCs that may be granted under the Plan as a result of the Reverse Unit Split. RUAs have historically been granted with vesting conditions ranging from three months to up to three years. RUAs typically provide for the payment of distributions during the restriction period. The RUAs provide for accelerated vesting if there is a change in control, or upon death or disability of the participant. Outstanding RUAs were adjusted on a one-for-three basis in conjunction with the Reverse Unit Split effected on April 1, 2022. The number of outstanding RUAs was not impacted by the BUCs Distributions as holders of RUAs did not participate in the BUCs Distributions, but rather received cash in the amount of $0.40 per RUA. The fair value of each RUA is estimated on the grant date based on the Partnership’s exchange-listed closing price of the BUCs. The Partnership recognizes compensation expense for the RUAs on a straight-line basis over the requisite vesting period. The Partnership accounts for modifications to RUAs as they occur, if the fair value of the RUAs change, there are changes to vesting conditions or the awards no longer qualify for equity classification. The Partnership accounts for forfeitures as they occur.
Net Income per BUC	Net Income per BUC The Partnership uses the two-class method to allocate net income available to the BUCs, and to the unvested RUAs as the RUAs are participating securities. Unvested RUAs are included with BUCs for the calculation of diluted net income per BUC using the treasury stock method, if the treasury stock method is more dilutive than the two-class method.
Lessee Leases	Lessee Leases The Partnership’s only material lessee lease was a ground lease at The 50/50 MF Property, which was sold in December 2022. The ground lease was assumed by the buyer. The Partnership has elected the package of practical expedients in ASU 2016-11, elected not to apply ASC 842 to short-term leases, and elected to combine lease and non-lease components when accounting for operating lease arrangements. The Partnership’s lessee ROU assets are reported within “Other assets” on the Partnership’s consolidated balance sheet (Note 12). The Partnership’s lessee operating lease liabilities are reported within “Accounts payable, accrued expenses and other liabilities” on the Partnership’s consolidated balance sheet (Note 13). See Note 13 for additional information on the Partnership’s ground lease. The Partnership used a discount rate of 6.6% to calculate the ROU asset and lease liability related to the ground lease. The discount rate is based on the Partnership’s estimated incremental borrowing rate to borrow, on a fully collateralized basis, over a similar term for the amount of contractual lease payments. The incremental borrowing rate was estimated using market transactions adjusted for differences in term and security.
Lessor Leases	Lessor Leases The Partnership’s lessor leases consist of tenant leases related to real estate assets, specifically at the MF Properties. Tenant leases also contain terms for non-lease revenues related to operations at the MF Properties, such as parking and food service revenues. The Partnership has elected to combine the lease and non-lease components when accounting for lessor leases. The unit lease component of the tenant lease is considered the predominant component, so all components of the tenant lease are accounted for under ASC 842. Tenant leases are typically for terms of 12 months or less and do not include extension options so no ROU asset has been recorded for such leases. Lease revenue is recognized monthly and is reported within “Property revenues” on the Partnership’s consolidated statements of operations.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, “Financial Instruments – Credit Losses (Topic 326).” ASU 2016-13 enhances the methodology of measuring expected credit losses for financial assets to include the use of reasonable and supportable forward-looking information to better estimate credit losses. In general, the allowance for credit losses is expected to increase when changing from an incurred loss to expected loss methodology. ASU 2016-13 also includes changes to the impairment model for available-for-sale debt securities such as the Partnership’s MRBs and taxable MRBs. ASU 2016-13 is effective for the Partnership on January 1, 2023 and is to be adopted through a cumulative-effect adjustment to retained earnings as of that date. The Partnership regularly assesses its assets that are within the scope of ASU 2016-13 and has determined that the GILs, taxable GILs, property loans, receivables reported within other assets, financial guaranties, financial commitments, and interest receivable related to such assets, are within the scope of ASU 2016-13. The Partnership has developed a loss rate model based on the weighted average remaining maturity of items within the scope of ASU 2016-13. The Partnership has developed and continues to refine data collection processes, assessment procedures and internal controls that will be required when ASU 2016-13 becomes effective, and to evaluate the impact to the Partnership's consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform—Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-04”), which provides optional guidance for a limited period meant to ease the potential burden in accounting for, or recognizing the effects of, reform to LIBOR and certain other reference rates. The standard is effective for all entities from March 12, 2020 through December 31, 2024. ASU 2020-04 is only applicable to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform, and that were entered into or evaluated prior to January 1, 2023. The Partnership has evaluated its population of instruments indexed, either directly or indirectly, to LIBOR and does not currently expect the adoption of ASU 2020-04 to have a material impact on the Partnership's consolidated financial statements.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2022

The “Partnership,” as used herein, includes Greystone Housing Impact Investors LP, its consolidated subsidiaries and consolidated variable interest entities (Note 5). All intercompany transactions are eliminated. The consolidated subsidiaries of the Partnership for the periods presented consist of:

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ATAX TEBS I, LLC, a special purpose entity owned and controlled by the Partnership, created to hold MRBs to facilitate the M24 Tax-Exempt Bond Securitization (“TEBS”) Financing (“M24 TEBS Financing”) with the Federal Home Loan Mortgage Corporation (“Freddie Mac”);

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ATAX TEBS II, LLC, a special purpose entity owned and controlled by the Partnership, created to hold MRBs to facilitate the “M31 TEBS Financing” with Freddie Mac;

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ATAX TEBS III, LLC, a special purpose entity owned and controlled by the Partnership created to hold MRBs to facilitate the “M33 TEBS Financing” with Freddie Mac;

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ATAX TEBS IV, LLC, a special purpose entity owned and controlled by the Partnership created to hold MRBs to facilitate the “M45 TEBS Financing” with Freddie Mac;

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ATAX TEBS Holdings, LLC, a wholly owned subsidiary of the Partnership, which has issued secured notes (“the Secured Notes”) to Mizuho Capital Markets LLC (“Mizuho”);

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ATAX Vantage Holdings, LLC, a wholly owned subsidiary of the Partnership, which is committed to provide equity for the development of multifamily properties;

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ATAX Freestone Holdings, LLC, a wholly owned subsidiary of the Partnership, which is committed to provide equity for the development of multifamily properties;

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One wholly owned corporation (“the Greens Hold Co”), which owned 100% of The 50/50 MF Property, a real estate asset, and certain property loans; and

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Lindo Paseo LLC, a wholly owned limited liability company, which owns 100% of the Suites on Paseo MF Property.

The Partnership also consolidates variable interest entities (“VIEs”) in which the Partnership is deemed to be the primary beneficiary.

Use of Estimates in Preparation of Consolidated Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires the Partnership to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The most significant estimates and assumptions include those used in determining: (i) the fair value of MRBs and taxable MRBs; (ii) investment impairments; (iii) impairment of real estate assets; and (iv) allowances for loan losses.

Risks and Uncertainties

The Federal Reserve announced seven increases in short-term interest rates totaling 425 basis points during 2022 and an additional 25 basis point increase in February 2023. The Federal Reserve has signaled further future short-term interest rate increases to combat inflation in the broader economy. In addition, geopolitical conflicts continue to impact the general global economic environment. These factors have caused volatility in the fixed income markets, which has impacted the value of some of the Partnership’s investment assets, particularly those with fixed interest rates. In addition, increases in short-term interest rates will generally result in increases in the interest cost associated with the Partnership’s variable rate debt financing arrangements and for construction debt of properties underlying our investments in unconsolidated entities. The extent to which general economic, geopolitical, and financial conditions will impact the Partnership’s financial condition or results of operations in the future is uncertain and actual results and outcomes could differ from current estimates.

The current inflationary environment in the United States may increase operating expenses at properties securing the Partnership’s investments and general operations, which may reduce net operating results of the related properties and result in lower debt service coverage or higher than anticipated capitalized interest requirements for properties under construction. Such occurrences may negatively impact the value of the Partnership’s investments. Higher general and administrative expenses of the Partnership and real estate operating expenses of the MF Properties may adversely affect the Partnership’s operating results, including a reduction in net income.

Furthermore, the potential for an economic recession either globally or locally in the U.S. or other economies could further impact the valuation of our investment assets, limit the Partnership’s ability to obtain additional debt financing from lenders, and limit opportunities for additional investments.

Variable Interest Entities

Under the accounting guidance for consolidation, the Partnership evaluates entities in which it holds a variable interest to determine if the entities are VIEs and if the Partnership is the primary beneficiary. The entity that is deemed to have: (1) the power to direct the activities of a VIE that most significantly impact the entity’s economic performance; and (2) the obligation to absorb losses of the entity that could potentially be significant to the VIE or the right to receive benefits from the entity that could potentially be significant to the VIE, is considered the primary beneficiary. If the Partnership is deemed to be the primary beneficiary, then it will consolidate the VIEs in its consolidated financial statements. The Partnership has consolidated all VIEs in which it has determined it is the primary beneficiary. In the Partnership’s consolidated financial statements, all transactions and accounts between the Partnership and the consolidated VIEs have been eliminated in consolidation.

The Partnership re-evaluates its accounting for VIEs at each reporting date based on events and circumstances at the VIEs. As a result, changes to the consolidated VIEs may occur in the future based on changes in circumstances. The accounting guidance on consolidations is complex and requires significant analysis and judgment.

The Partnership does not believe that the consolidation of VIEs for reporting under GAAP impacts its status as a partnership for federal income tax purposes or the status of Unitholders as partners of the Partnership. In addition, the consolidation of VIEs is not expected to impact the treatment of the MRBs, GILs and property loans owned by consolidated VIEs, the tax-exempt nature of the interest payments on secured debt financings, or the manner in which the Partnership’s income is reported to Unitholders on IRS Schedule K-1.

Accounting for TOB, Term TOB, and TEBS Financing Arrangements

The Partnership has evaluated the accounting guidance related to its TOB (“Tender Option Bond”), term TOB, and TEBS financings and has determined that the securitization transactions do not meet the accounting criteria for a sale or transfer of financial assets and therefore are accounted for as secured financing transactions. More specifically, the guidance on transfers and servicing sets forth the conditions that must be met to de-recognize a transferred financial asset. This guidance provides, in part, that the transferor has surrendered control over transferred assets if and only if the transferor does not maintain effective control over the transferred assets. The financing agreements contain certain provisions that allow the Partnership to unilaterally cause the holder to return the securitized assets, other than through a cleanup call. Based on these terms, the Partnership has concluded that the Partnership has not transferred effective control over the transferred assets and, as such, the transactions do not meet the conditions to de-recognize the transferred assets.

In addition, the Partnership has evaluated the securitization trusts associated with the TOB, term TOB, and TEBS financings in accordance with guidance on consolidation of VIEs. See Note 5 for the consolidation analysis related to these secured financing arrangements. The Partnership is deemed to be the primary beneficiary of these securitization trusts and consolidates the assets, liabilities, income and expenses of the securitization trusts in the Partnership’s consolidated financial statements.

The Partnership recognizes interest expense for fixed-rate TEBS financings with escalating stated interest rates using the effective interest method over the estimated term of the arrangement.

Cash and Cash Equivalents

Cash and cash equivalents include highly liquid securities and investments in federally tax-exempt securities with maturities of three months or less when purchased.

Concentration of Credit Risk

The Partnership maintains the majority of its unrestricted cash balances at three financial institutions. The balances insured by the Federal Deposit Insurance Corporation are equal to $250,000 at each institution. At various times the cash balances have exceeded the $250,000 limit. The Partnership may from time to time invest in short-term investment grade securities. The Partnership is exposed to risk on its short-term investments in the event of non-performance by counterparties, though such risk is minimal and the Partnership does not anticipate any non-performance.

Restricted Cash

Restricted cash is legally restricted as to its use. The Partnership has been required to maintain restricted cash collateral related to one secured line of credit (Note 14) and the total return swap transaction (Note 17). In addition, the Partnership is required to maintain restricted cash balances related to the TEBS Financing facilities (Note 15), resident security deposits, required maintenance reserves, escrowed funds, and property rehabilitation. Restricted cash is presented with cash and cash equivalents in the consolidated statements of cash flows.

Investments in Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds

The Partnership accounts for its investments in MRBs and taxable MRBs under the accounting guidance for certain investments in debt and equity securities. The Partnership’s investments in these instruments are classified as available-for-sale debt securities and are reported at their estimated fair value. The net unrealized gains or losses on these investments are reflected on the Partnership’s consolidated statements of comprehensive income. Unrealized gains and losses do not affect the cash flow of the bonds, distributions to Unitholders, or the characterization of the interest income. See Note 23 for a description of the Partnership’s methodology for estimating the fair value of MRBs and taxable MRBs.

The Partnership periodically reviews its MRBs and taxable MRBs for impairment. The Partnership evaluates whether unrealized losses are considered other-than-temporary impairments based on various factors including, but not necessarily limited to, the following:

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The duration and severity of the decline in fair value;

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The Partnership’s intent to hold and the likelihood of it being required to sell the security before its value recovers;

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Adverse conditions specifically related to the security, its collateral, or both;

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Volatility of the fair value of the security;

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The likelihood of the borrower being able to make scheduled interest and principal payments;

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Failure of the borrower to make scheduled interest or principal payments; and

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Recoveries or additional declines in fair value after the balance sheet date.

While the Partnership evaluates all available information, it focuses specifically on whether the security’s estimated fair value is below amortized cost. If a MRB’s estimated fair value is below amortized cost, and the Partnership has the intent to sell or may be required to sell the MRB prior to the time that its value recovers or until maturity, the Partnership will record an other-than-temporary impairment through earnings equal to the difference between the MRB’s carrying value and its fair value. If the Partnership does not expect to sell an other-than-temporarily impaired MRB, only the portion of the other-than-temporary impairment related to credit losses is recognized through earnings as a provision for credit loss, with the remainder recognized as a component of other comprehensive income. In determining the provision for credit loss, the Partnership compares the present value of cash flows expected to be collected to the MRB’s amortized cost basis.

The recognition of other-than-temporary impairment, provision for credit loss, and the potential impairment analysis are subject to a considerable degree of judgment, the results of which, when applied under different conditions or assumptions, could have a material impact on the Partnership’s consolidated financial statements. If the Partnership experiences deterioration in the values of its MRB portfolio, the Partnership may incur other-than-temporary impairments or provision for credit losses that could negatively impact the Partnership’s financial condition, cash flows, and reported earnings. The Partnership periodically reviews any previously impaired MRBs for indications of a recovery of value. If a recovery of value is identified, the Partnership will accrete the recovery of prior credit losses into investment income over the remaining term of the MRB.

Investments in Governmental Issuer Loans and Taxable Governmental Issuer Loans

The Partnership accounts for its investment in governmental issuer loans (“GILs”) and taxable GILs under the accounting guidance for certain investments in debt and equity securities. The Partnership’s investment in these instruments are classified as held-to-maturity debt securities and are reported at amortized cost.

The Partnership periodically reviews its GILs and taxable GILs for impairment. The Partnership evaluates whether unrealized losses are considered other-than-temporary impairments based on various factors including, but not necessarily limited to, the following:

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The duration and severity of the decline in fair value;

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The Partnership’s intent to hold and the likelihood of it being required to sell the security before its value recovers;

•

Adverse conditions specifically related to the security, its collateral, or both;

•

Volatility of the fair value of the security;

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The likelihood of the borrower being able to make scheduled interest and principal payments;

•

The failure of the borrower to make scheduled interest or principal payments; and

•

Recoveries or additional declines in fair value after the balance sheet date.

While the Partnership evaluates all available information, it focuses specifically on whether the security’s estimated fair value is below amortized cost. If the estimated fair value of a GIL or taxable GIL is below amortized cost, and the Partnership does not expect to recover its entire amortized cost, only the portion of the other-than-temporary impairment related to credit losses is recognized through earnings as a provision for credit loss, with the remainder recognized as a component of other comprehensive income.

The recognition of other-than-temporary impairment, provision for credit loss, and the potential impairment analysis are subject to a considerable degree of judgment, the results of which, when applied under different conditions or assumptions, could have a material impact to the Partnership’s consolidated financial statements. If the Partnership experiences deterioration in the value of its GILs or taxable GILs, the Partnership may incur other-than-temporary impairments or provision for credit losses that could negatively impact the Partnership’s financial condition, cash flows, and reported earnings.

Real Estate Assets

The Partnership’s investments in real estate are carried at cost less accumulated depreciation. Depreciation of real estate is based on the estimated useful life of the related asset, generally 19-40 years on multifamily and student housing residential apartment buildings, and five to 15 years on capital improvements. Depreciation expense is calculated using the straight-line method. Maintenance and repairs are charged to expense as incurred, while improvements, renovations, and replacements are capitalized. The Partnership also holds land held for investment and development which is reported at cost. The Partnership recognizes gains and losses equal to the difference between proceeds on sale and the net carrying value of the assets at the date of disposition.

The Partnership reviews real estate assets for impairment periodically and whenever events or changes in circumstances indicate that the carrying value of a property may not be recoverable. When indicators of potential impairment suggest that the carrying value of a real estate asset may not be recoverable, the Partnership compares the carrying amount of the real estate asset to the undiscounted net cash flows expected to be generated from the use of the asset. If the carrying value exceeds the undiscounted net cash flows, an impairment loss is recorded to the extent that the carrying value of the property exceeds its estimated fair value.

Investments in Unconsolidated Entities

The Partnership accounts for its investments in unconsolidated entities under the equity method of accounting. Through ATAX Vantage Holdings, LLC and ATAX Freestone Holdings, LLC, the Partnership makes investments in non-controlling limited membership interests in entities formed to construct market-rate multifamily properties. The Partnership applies the equity method of accounting by initially recording these investments at cost, subsequently adjusted for accrued preferred returns, the Partnership’s share of earnings (losses) of the unconsolidated entities, cash contributions, and distributions.

The Partnership reviews its investments in unconsolidated affiliates for impairment whenever events or changes in business circumstances indicate that the carrying amount of the investments may not be fully recoverable. Factors considered include:

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The absence of an ability to recover the carrying amount of the investment;

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The inability of the investee to sustain an earnings capacity that justifies the carrying amount of the investment; or

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Estimated sales proceeds that are insufficient to recover the carrying amount of the investment.

The Partnership’s assessment of whether a decline in value is other than temporary is based on the Partnership’s ability and intent to hold the investment and whether evidence indicating the carrying value of the investment is recoverable within a reasonable period of time outweighs evidence to the contrary. If the fair value of the investment is determined to be less than the carrying value and the decline in value is considered other than temporary, an impairment charge would be recorded equal to the excess of the carrying value over the estimated fair value of the investment.

The Partnership earns a preferred return on its investments in Vantage properties that is guaranteed by an unrelated third party, which is also an affiliate of the unconsolidated entities. The term of the third-party guaranty is from the initial investment through a date approximately five years after commencement of construction. The Partnership recognizes its preferred return based upon the guaranty provided by the unrelated third-party, the guarantor’s financial ability to perform under the guaranty and the cash flows expected to be received from each property. Preferred returns are reported within “Investment income” on the Partnership’s consolidated statements of operations.

The Partnership earns a preferred return on its investments in Freestone properties that is senior to the preferred return and return of capital of the other members of the unconsolidated entities. The Partnership recognizes its preferred return on each investment to the extent there is capital of the managing member of the unconsolidated entity to support the recognition of preferred return. Preferred returns are reported within “Investment income” on the Partnership’s consolidated statements of operations. In addition, the Partnership

will recognize its share of earnings (losses) of the unconsolidated entities, when appropriate, and report within “Earnings (losses) from investments in unconsolidated entities” on the Partnership’s consolidated statements of operations. There are generally no earnings (losses) reported during the construction period for each unconsolidated entity as construction costs are capitalized.

Property Loans, Net

The Partnership invests in property loans made to the owners of certain multifamily, student housing and skilled nursing properties. Most of the property loans have been made to multifamily properties that secure MRBs and GILs owned by the Partnership. The Partnership recognizes interest income on the property loans as earned and the interest income is reported within “Other interest income” on the Partnership’s consolidated statements of operations. Interest income is not recognized for property loans that are deemed to be in nonaccrual status. Interest income is recognized upon the repayment of these property loans and accrued interest which is dependent largely on the cash flows or proceeds upon sale or refinancing of the related property.

Property loans are reported net of loan loss allowances. The Partnership periodically evaluates property loans for potential impairment by estimating the fair value of the related property and comparing the fair value to the outstanding MRBs, GILs or other senior financing, plus the Partnership’s property loans. The Partnership also considers financing commitments, borrower equity commitments, guaranties by borrower affiliates, and construction progress when assessing property loans associated with GIL investments. The Partnership utilizes a discounted cash flow model that considers varying assumptions including multiple revenue and expense scenarios, various capitalization rates, and multiple discount rates. The Partnership may also consider other information such as independent appraisals in estimating a property’s fair value. If the estimated fair value of the related property, after deducting the amortized cost basis of the MRB, GIL or other senior financing, exceeds the principal balance of the property loan then no potential loss is indicated and no allowance for loan loss is recorded. If a potential loss is indicated, an allowance for loan loss is recorded against the outstanding loan amount and a loss is recognized. The determination of the need for an allowance for loan loss is subject to considerable judgment. See Note 10 for additional information on the Partnership’s property loan loss allowances.

Deferred Financing Costs

Debt financing costs are capitalized and amortized using the effective interest method through either the stated maturity date or the optional redemption date of the related debt financing agreement. Debt financing costs associated with revolving line of credit arrangements are reported within “Other assets” on the Partnership’s consolidated balance sheets. Deferred financing costs associated with debt financing and mortgages payable arrangements are reported as reductions to the carrying value of the related liability on the Partnership’s consolidated balance sheets.

Income Taxes

No provision has been made for income taxes of the Partnership as it is a partnership for federal income tax purposes such that profits and losses are allocated to Unitholders, except for certain entities described below. The distributive share of income, deductions and credits is reported to Unitholders on Internal Revenue Service (“IRS”) Schedule K-1. The Partnership pays franchise margin taxes on revenues in certain jurisdictions relating to property loans and investments in unconsolidated entities.

The Greens Hold Co is a corporation that is subject to federal and state income taxes. The Partnership recognizes income tax expense or benefit for the federal and state income taxes incurred by this entity in its consolidated financial statements.

The Partnership evaluates its tax positions on the consolidated financial statements under the accounting guidance for uncertain tax positions. The Partnership may recognize a tax benefit from an uncertain tax position only if the Partnership believes it is more likely than not that the tax position will be sustained on examination by taxing authorities. The Partnership accrues interest and penalties, if any, and reports them within “Income tax expense” on the Partnership’s consolidated statements of operations.

Deferred income tax expense or benefit, is generally a function of the period’s temporary differences (items that are treated differently for tax purposes than for financial reporting purposes), such as depreciation, amortization of financing costs, etc. and the utilization of tax net operating losses (“NOLs”). The Partnership values its deferred tax assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The Partnership records a valuation allowance for deferred income tax assets if it believes all, or some portion, of the deferred income tax asset may not be realized. Any increase or decrease in the valuation allowance that results from a change in circumstances that causes a change in the estimated ability to realize the related deferred income tax asset is included in deferred income tax expense.

Investment Income from Investments in Mortgage Revenue Bonds and Governmental Issuer Loans

The interest income received by the Partnership from its MRBs and GILs is dependent upon the net cash flow of the underlying properties. Interest income on fully performing MRBs and GILs is recognized as it is earned. Current and past due interest income on MRBs and GILs not fully performing is recognized as it is received. The Partnership reinstates the accrual of interest once the MRB’s or GIL’s ability to perform is adequately demonstrated. Interest income related to MRBs and GILs is reported within “Investment Income” and interest income related to taxable MRBs and taxable GILs is reported within “Other interest income” on the Partnership’s consolidated statements of operations. As of December 31, 2022 and 2021, all of the Partnership’s MRBs and GILs were fully performing and current on all interest payments, with the exception of the Provision Center 2014-1 MRB and forbearance granted to the borrower of the Live 929 Apartments MRBs until January 2022.

Premiums on callable MRB investments are amortized as a yield adjustment to the earliest call date. Discounts on MRB investments are amortized as a yield adjustment to the stated maturity date. Amortization of premiums and discounts is reported within “Investment income” on the Partnership’s consolidated statements of operations.

Bond origination costs are capitalized and amortized utilizing the effective interest method over the period to the stated maturity of the related MRB and taxable MRB investments. Bond origination costs are reported as an adjustment to the cost adjusted for paydowns and allowances of the related MRB in Note 6.

Derivative Instruments and Hedging Activities

The Partnership reports interest rate derivatives on its consolidated balance sheets at fair value. The Partnership’s derivative instruments are not designated as hedging instruments for GAAP purposes and changes in fair value are reported within “Interest expense” on the Partnership’s consolidated statements of operations. The Partnership is exposed to loss upon defaults by its counterparties on its interest rate derivative agreements. The Partnership does not anticipate non-performance by any counterparty.

Redeemable Preferred Units

The Partnership has designated three series of Preferred Units consisting of the Series A Preferred Units, the Series A-1 Preferred Units, and the Series B Preferred Units. The Partnership has issued Series A Preferred Units and Series A-1 Preferred Units, representing limited partnership interests in the Partnership to various financial institutions. The Series A Preferred Units and Series A-1 Preferred Units are recorded as mezzanine equity due to the holders’ redemption option which, if and when the units become subject to redemption, is outside the Partnership’s control. The costs of issuing the Series A Preferred Units and Series A-1 Preferred Units have been netted against the carrying value of the Series A Preferred Units and Series A-1 Preferred Units, and are amortized to the first redemption date. The Partnership will account for the Series B Preferred Units in a manner consistent with the Series A Preferred Units and Series A-1 Preferred Units if and when issued.

Beneficial Unit Certificates ("BUCs")

Beneficial Unit Certificates (“BUCs”)

The Partnership has issued BUCs representing assigned limited partnership interests to investors. Costs related to the issuance of BUCs are recorded as a reduction to partners’ capital when issued. On April 1, 2022, the Partnership effected a one-for-three reverse unit split (“Reverse Unit Split”) of its outstanding BUCs. As a result of the Reverse Unit Split, holders of BUCs received one BUC for every three BUCs owned at the close of business on April 1, 2022. All fractional BUCs created by the Reverse Unit Split

were rounded to the nearest whole BUC, with any fraction equal to or above 0.5 BUC rounded up to the next higher BUC, as provided by the Partnership Agreement. Immediately prior to the Reverse Unit Split, there were 66,049,908 BUCs issued and outstanding, and immediately after the Reverse Unit Split the number of issued and outstanding BUCs decreased to 22,017,915. In connection with the Reverse Unit Split, the CUSIP number for the BUCs changed to 02364V 206. The BUCs continue to trade on the NYSE under the trading symbol “GHI.”

On September 14, 2022, the Partnership declared a supplemental distribution payable in the form of additional BUCs equal to $0.20 per BUC (the “Third Quarter BUCs Distribution”). The Third Quarter BUCs Distribution was paid at a ratio of 0.01044 BUCs for each issued and outstanding BUC as of the record date of September 30, 2022, which represents an amount per BUC based on the closing price of the BUCs on the Nasdaq Stock Market LLC on September 13, 2022, which was the national securities exchange upon which the BUCs were listed as of that date. The Third Quarter BUCs Distribution was completed on October 31, 2022. On December 19, 2022, the Partnership declared a supplemental distribution payable in the form of additional BUCs equal to $0.20 per BUC (the “Fourth Quarter BUCs Distribution”, collectively with the Third Quarter BUCs Distribution, the “BUCs Distributions”). The Fourth Quarter BUCs Distribution was paid at a ratio of 0.0105 BUCs for each issued and outstanding BUC as of the record date of December 30, 2022, which represents an amount per BUC based on the closing price of the BUCs on the NYSE on December 16, 2022. The Fourth Quarter BUCs Distribution was completed on January 31, 2023. There were no fractional BUCs issued in connection with the BUCs Distributions. All fractional BUCs resulting from the BUCs Distributions received cash for such fraction based on the market value of the BUCs on the record date.

The one-for-three Reverse Unit Split and the BUCs Distributions have been applied retroactively to all net income per BUC, distributions per BUC and similar per BUC disclosures for all periods indicated in the Partnership’s consolidated financial statements.

Restricted Unit Awards ("RUA" or "RUAs")

Restricted Unit Awards (“RUA” or “RUAs”)

On December 5, 2022, the Board of Managers of Greystone Manager approved the Amended and Restated Greystone Housing Impact Investors LP 2015 Equity Incentive Plan (the “Plan”) to reflect the Partnership’s new name. No material or other changes were made to the Plan. The Plan was approved by the BUC holders in September 2015and permits the grant of RUAs and other awards to the employees of Greystone Manager, or any affiliate, who performs services for Greystone Manager, the Partnership or an affiliate, and members of the Board of Managers of Greystone Manager. The Plan permits total grants of RUAs of up to 1.0 million BUCs, which reflects adjustments made to the number of BUCs that may be granted under the Plan as a result of the Reverse Unit Split.

RUAs have historically been granted with vesting conditions ranging from three months to up to three years. RUAs typically provide for the payment of distributions during the restriction period. The RUAs provide for accelerated vesting if there is a change in control, or upon death or disability of the participant. Outstanding RUAs were adjusted on a one-for-three basis in conjunction with the Reverse Unit Split effected on April 1, 2022. The number of outstanding RUAs was not impacted by the BUCs Distributions as holders of RUAs did not participate in the BUCs Distributions, but rather received cash in the amount of $0.40 per RUA. The fair value of each RUA is estimated on the grant date based on the Partnership’s exchange-listed closing price of the BUCs. The Partnership recognizes compensation expense for the RUAs on a straight-line basis over the requisite vesting period. The Partnership accounts for modifications to RUAs as they occur, if the fair value of the RUAs change, there are changes to vesting conditions or the awards no longer qualify for equity classification. The Partnership accounts for forfeitures as they occur.

Net Income per BUC

The Partnership uses the two-class method to allocate net income available to the BUCs, and to the unvested RUAs as the RUAs are participating securities. Unvested RUAs are included with BUCs for the calculation of diluted net income per BUC using the treasury stock method, if the treasury stock method is more dilutive than the two-class method.

Lessee Leases

The Partnership’s only material lessee lease was a ground lease at The 50/50 MF Property, which was sold in December 2022. The ground lease was assumed by the buyer. The Partnership has elected the package of practical expedients in ASU 2016-11, elected not to apply ASC 842 to short-term leases, and elected to combine lease and non-lease components when accounting for operating lease arrangements.

The Partnership’s lessee ROU assets are reported within “Other assets” on the Partnership’s consolidated balance sheet (Note 12). The Partnership’s lessee operating lease liabilities are reported within “Accounts payable, accrued expenses and other liabilities” on the Partnership’s consolidated balance sheet (Note 13). See Note 13 for additional information on the Partnership’s ground lease. The Partnership used a discount rate of 6.6% to calculate the ROU asset and lease liability related to the ground lease. The discount rate is based on the Partnership’s estimated incremental borrowing rate to borrow, on a fully collateralized basis, over a similar term for the

amount of contractual lease payments. The incremental borrowing rate was estimated using market transactions adjusted for differences in term and security.

Lessor Leases

The Partnership’s lessor leases consist of tenant leases related to real estate assets, specifically at the MF Properties. Tenant leases also contain terms for non-lease revenues related to operations at the MF Properties, such as parking and food service revenues. The Partnership has elected to combine the lease and non-lease components when accounting for lessor leases. The unit lease component of the tenant lease is considered the predominant component, so all components of the tenant lease are accounted for under ASC 842. Tenant leases are typically for terms of 12 months or less and do not include extension options so no ROU asset has been recorded for such leases. Lease revenue is recognized monthly and is reported within “Property revenues” on the Partnership’s consolidated statements of operations.

Recently Issued Accounting Pronouncements

In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-13, “Financial Instruments – Credit Losses (Topic 326).” ASU 2016-13 enhances the methodology of measuring expected credit losses for financial assets to include the use of reasonable and supportable forward-looking information to better estimate credit losses. In general, the allowance for credit losses is expected to increase when changing from an incurred loss to expected loss methodology. ASU 2016-13 also includes changes to the impairment model for available-for-sale debt securities such as the Partnership’s MRBs and taxable MRBs. ASU 2016-13 is effective for the Partnership on January 1, 2023 and is to be adopted through a cumulative-effect adjustment to retained earnings as of that date. The Partnership regularly assesses its assets that are within the scope of ASU 2016-13 and has determined that the GILs, taxable GILs, property loans, receivables reported within other assets, financial guaranties, financial commitments, and interest receivable related to such assets, are within the scope of ASU 2016-13. The Partnership has developed a loss rate model based on the weighted average remaining maturity of items within the scope of ASU 2016-13. The Partnership has developed and continues to refine data collection processes, assessment procedures and internal controls that will be required when ASU 2016-13 becomes effective, and to evaluate the impact to the Partnership's consolidated financial statements.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform—Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-04”), which provides optional guidance for a limited period meant to ease the potential burden in accounting for, or recognizing the effects of, reform to LIBOR and certain other reference rates. The standard is effective for all entities from March 12, 2020 through December 31, 2024. ASU 2020-04 is only applicable to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform, and that were entered into or evaluated prior to January 1, 2023. The Partnership has evaluated its population of instruments indexed, either directly or indirectly, to LIBOR and does not currently expect the adoption of ASU 2020-04 to have a material impact on the Partnership's consolidated financial statements.