FAIR VALUE

Heartland utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Securities carried at fair value, which include available for sale, trading securities and equity securities with a readily determinable fair value, and derivatives are recorded in the consolidated balance sheets at fair value on a recurring basis. Additionally, from time to time, Heartland may be required to record at fair value other assets on a nonrecurring basis such as loans held for sale, loans held to maturity and certain other assets including, but not limited to, mortgage servicing rights, commercial servicing rights and other real estate owned. These nonrecurring fair value adjustments typically involve application of lower of cost or fair value accounting or write-downs of individual assets.

Fair Value Hierarchy

Under ASC 820, assets and liabilities are grouped at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:

Level 1 — Valuation is based upon quoted prices for identical instruments in active markets.

Level 2 — Valuation is based upon quoted prices for similar instruments in active markets, or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market.

Level 3 — Valuation is generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.

The following is a description of valuation methodologies used for assets and liabilities recorded at fair value on a recurring or non-recurring basis.

Assets

Securities Available for Sale and Held to Maturity

Securities available for sale are recorded at fair value on a recurring basis. Securities held to maturity are generally recorded at cost and are only recorded at fair value to the extent a decline in fair value is determined to be other-than-temporary. Fair value measurement is based upon quoted prices, if available. If quoted prices are not available, fair values are measured using independent pricing models or other model-based valuation techniques such as the present value of future cash flows, adjusted for the security's credit rating, prepayment assumptions and other factors such as credit loss assumptions. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange, as well as U.S. Treasury securities. Level 2 securities include U.S. government and agency securities, mortgage and asset-backed securities and private collateralized mortgage obligations, municipal bonds, equity securities and corporate debt securities. On a quarterly basis, a secondary independent pricing service is used for the securities portfolio to validate the pricing from Heartland's primary pricing service.

Equity Securities with a Readily Determinable Fair Value

Equity securities with a readily determinable fair value generally include Community Reinvestment Act mutual funds and are classified as Level 2 due to the infrequent trading of these securities. The fair value is based on the price per share.

Loans Held for Sale

Loans held for sale are carried at the lower of cost or fair value on an aggregate basis. The fair value of loans held for sale is based on what secondary markets are currently offering for portfolios with similar characteristics. As such, Heartland classifies loans held for sale subjected to nonrecurring fair value adjustments as Level 2.

Prior to December 31, 2018, Heartland entered into an agreement with a third-party to sell the loan portfolios of its consumer finance subsidiaries. The loan portfolios were classified as held for sale and recorded at fair value at December 31, 2018. Heartland classified these loans as nonrecurring Level 3 in the fair value hierarchy because the negotiated sales price was unobservable.

Loans Held to Maturity

Heartland does not record loans held to maturity at fair value on a recurring basis. However, from time to time, a loan is considered impaired and an allowance for loan losses is established. Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are considered impaired. Once a loan is identified as individually impaired, management measures impairment in accordance with ASC 310. The fair value of impaired loans is measured using one of the following impairment methods: 1) the present value of expected future cash flows discounted at the loan's effective interest rate or 2) the observable market price of the loan or 3) the fair value of the collateral if the loan is collateral dependent. In accordance with ASC 820, impaired loans measured at fair value are classified as nonrecurring Level 3 in the fair value hierarchy.

Premises, Furniture and Equipment Held for Sale

Heartland values premises, furniture and equipment held for sale based on third-party appraisals less estimated disposal costs. Heartland considers third party appraisals, as well as independent fair value assessments from Realtors or persons involved in selling bank premises, furniture and equipment, in determining the fair value of particular properties. Accordingly, the valuation of premises, furniture and equipment held for sale is subject to significant external and internal judgment. Heartland periodically reviews premises, furniture and equipment held for sale to determine if the fair value of the property, less disposal costs, has declined below its recorded book value and records any adjustments accordingly. Premises, furniture and equipment held for sale are classified as nonrecurring Level 3 in the fair value hierarchy.

Mortgage Servicing Rights

Mortgage servicing rights assets represent the value associated with servicing residential real estate loans that have been sold to outside investors with servicing retained. The fair value for servicing assets is determined through discounted cash flow analysis and utilizes discount rates, prepayment speeds and delinquency rate assumptions as inputs. All of these assumptions require a significant degree of management estimation and judgment. Mortgage servicing rights are subject to impairment testing. The carrying values of these rights are reviewed quarterly for impairment based upon the calculation of fair value as performed by an outside third party. For purposes of measuring impairment, the rights are stratified into certain risk characteristics including note type and note term. If the valuation model reflects a value less than the carrying value, mortgage servicing rights are adjusted to fair value through a valuation allowance. Heartland classifies mortgage servicing rights as nonrecurring with Level 3 measurement inputs.

Commercial Servicing Rights

Commercial servicing rights assets represent the value associated with servicing commercial loans guaranteed by the Small Business Administration and United States Department of Agriculture that have been sold with servicing retained by Heartland. Heartland uses the amortization method (i.e., the lower of amortized cost or estimated fair value measured on a nonrecurring basis), not fair value measurement accounting, to determine the carrying value of its commercial servicing rights. The fair value for servicing assets is determined through market prices for comparable servicing contracts, when available, or through a valuation model that calculates the present value of estimated future net servicing income. Inputs utilized include discount rates, prepayment speeds and delinquency rate assumptions as inputs. All of these assumptions require a significant degree of management estimation and judgment. Commercial servicing rights are subject to impairment testing, and the carrying values of these rights are reviewed quarterly for impairment based upon the calculation of fair value as performed by an outside third party. If the valuation model reflects a fair value less than the carrying value, commercial servicing rights are adjusted to fair value through a valuation allowance. Heartland classifies commercial servicing rights as nonrecurring with Level 3 measurement inputs.

Derivative Financial Instruments

Heartland's current interest rate risk strategy includes interest rate swaps. The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. To comply with the provisions of ASC 820, Heartland incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty's nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, Heartland has considered the impact of netting any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees.

Although Heartland has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of December 31, 2018, and December 31, 2017, Heartland has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, Heartland has determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.

Interest Rate Lock Commitments

Heartland uses an internal valuation model that relies on internally developed inputs to estimate the fair value of its interest rate lock commitments which is based on unobservable inputs that reflect management's assumptions and specific information about each borrower. Interest rate lock commitments are classified in Level 3 of the fair value hierarchy.

Forward Commitments

The fair value of forward commitments are estimated using an internal valuation model, which includes current trade pricing for similar financial instruments in active markets that Heartland has the ability to access and are classified in Level 2 of the fair value hierarchy.

Other Real Estate Owned

Other real estate owned ("OREO") represents property acquired through foreclosures and settlements of loans. Property acquired is carried at the fair value of the property at the time of acquisition (representing the property's cost basis), plus any acquisition costs, or the estimated fair value of the property, less disposal costs. Heartland considers third party appraisals, as well as independent fair value assessments from realtors or persons involved in selling OREO, in determining the fair value of particular properties. Accordingly, the valuation of OREO is subject to significant external and internal judgment. Heartland periodically reviews OREO to determine if the fair value of the property, less disposal costs, has declined below its recorded book value and records any adjustments accordingly. OREO is classified as nonrecurring Level 3 of the fair value hierarchy.

The table below presents Heartland's assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2018, and December 31, 2017, in thousands, aggregated by the level in the fair value hierarchy within which those measurements fall:



	Total Fair Value		Level 1		Level 2		Level 3
December 31, 2018
Assets
Securities available for sale
U.S. government corporations and agencies	$	31,951	$	25,414	$	6,537	$	—
Mortgage and asset-backed securities	2,026,698		—		2,026,698		—
Obligations of states and political subdivisions	374,974		—		374,974		—
Equity securities with a readily determinable fair value	17,086		—		17,086		—
Derivative financial instruments⁽¹⁾	6,539		—		6,539		—
Interest rate lock commitments	725		—		—		725
Forward commitments	—		—		—		—
Total assets at fair value	$	2,457,973	$	25,414	$	2,431,834	$	725
Liabilities
Derivative financial instruments⁽²⁾	$	6,044	$	—	$	6,044	$	—
Forward commitments	399		—		399		—
Total liabilities at fair value	$	6,443	$	—	$	6,443	$	—
December 31, 2017
Assets
Securities available for sale
U.S. government corporations and agencies	$	5,328	$	3,484	$	1,844	$	—
Mortgage-backed securities	1,753,736		—		1,753,736		—
Obligations of states and political subdivisions	441,015		—		441,015		—
Equity securities	16,674		—		16,674		—
Derivative financial instruments⁽¹⁾	3,933		—		3,933		—
Interest rate lock commitments	1,738		—		—		1,738
Forward commitments	80		—		80		—
Total assets at fair value	$	2,222,504	$	3,484	$	2,217,282	$	1,738
Liabilities
Derivative financial instruments⁽²⁾	$	5,167	$	—	$	5,167	$	—
Forward commitments	232		—		232		—
Total liabilities at fair value	$	5,399	$	—	$	5,399	$	—

(1) Includes embedded derivatives, back-to-back loan swaps, fair value hedges, free standing derivative instruments and cash flow hedges.
(2) Includes cash flow hedges, fair value hedges, back-to-back loan swaps, embedded derivatives and free standing derivative instruments.

The tables below present Heartland's assets that are measured at fair value on a nonrecurring basis, in thousands:



	Fair Value Measurements at December 31, 2018
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		(Gains)/Losses
Collateral dependent impaired loans:
Commercial	$	12,932	$	—	$	—	$	12,932	$	660
Commercial real estate	405		—		—		405		72
Agricultural and agricultural real estate	11,070		—		—		11,070		575
Residential real estate	478		—		—		478		—
Consumer	624		—		—		624		—
Total collateral dependent impaired loans	$	25,509	$	—	$	—	$	25,509	$	1,307
Loans held for sale	$	119,801	$	—	$	52,577	$	67,224	$	(1,870	)
Other real estate owned	$	6,153	$	—	$	—	$	6,153	$	2,647
Premises, furniture and equipment held for sale	$	7,258	$	—	$	—	$	7,258	$	59
Servicing rights	$	7,143	$	—	$	—	$	7,143	$	58



	Fair Value Measurements at December 31, 2017
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		(Gains)/Losses
Collateral dependent impaired loans:
Commercial	$	3,212	$	—	$	—	$	3,212	$	1,119
Commercial real estate	9,480		—		—		9,480		322
Agricultural and agricultural real estate	8,406		—		—		8,406		2,028
Residential real estate	1,137		—		—		1,137		—
Consumer	1,234		—		—		1,234		—
Total collateral dependent impaired loans	$	23,469	$	—	$	—	$	23,469	$	3,469
Loans held for sale	$	44,560	$	—	$	44,560	$	—	$	190
Other real estate owned	$	10,777	$	—	$	—	$	10,777	$	737
Premises, furniture and equipment held for sale	$	1,977	$	—	$	—	$	1,977	$	192
Servicing rights	$	291	$	—	$	—	$	291	$	(21	)

Heartland entered into an agreement to sell the loan portfolios of its consumer finance subsidiaries during the fourth quarter of 2018, which were recorded at fair value at December 31, 2018. The fair value of the portfolios was $67.2 million, and Heartland recorded a benefit to provision for loan losses of $953,000 in 2018 associated with the transaction.

The following tables present additional quantitative information about assets measured at fair value on a recurring and nonrecurring basis and for which Heartland has utilized Level 3 inputs to determine fair value, in thousands:



	Fair Value at 12/31/18		Valuation Technique	Unobservable Input	Range (Weighted Average)
Loans held for sale	$	67,224	Discounted cash flows	Sales contract	⁽¹⁾

Interest rate lock commitments	725		Discounted cash flows	Closing ratio	0 - 99% (91%)⁽²⁾
Premises, furniture and equipment held for sale	7,258		Modified appraised value	Third party appraisal	⁽³⁾
Premises, furniture and equipment held for sale				Appraisal discount	0-10%⁽⁵⁾
Other real estate owned	6,153		Modified appraised value	Third party appraisal	⁽³⁾
Other real estate owned				Appraisal discounts	0-10%⁽⁵⁾
Servicing rights	7,143		Discounted cash flows	Third party valuation	⁽⁴⁾
Servicing rights
Collateral dependent impaired loans:
Commercial	12,932		Modified appraised value	Third party appraisal	⁽³⁾
Commercial				Appraisal discount	0-8%⁽⁵⁾
Commercial real estate	405		Modified appraised value	Third party appraisal	⁽³⁾
				Appraisal discount	0-19%⁽⁵⁾
Agricultural and agricultural real estate	11,070		Modified appraised value	Third party appraisal	⁽³⁾
Agricultural and agricultural real estate				Appraisal discount	0-24%⁽⁵⁾
Residential real estate	478		Modified appraised value	Third party appraisal	⁽³⁾
				Appraisal discount	0-24%⁽⁵⁾
Consumer	624		Modified appraised value	Third party valuation	⁽³⁾
Consumer				Valuation discount	0-14%⁽⁵⁾

(1) The significant unobservable input related to the loans held for sale was the third party sales contract Heartland entered into prior to December 31, 2018. The sale of these consumer loans closed on January 11, 2019.
(2) The significant unobservable input used in the fair value measurement is the closing ratio, which represents the percentage of loans currently in a lock position which management estimates will ultimately close. The closing ratio calculation takes into consideration historical data and loan-level data.
(3) Third party appraisals are obtained and updated at least annually to establish the value of the underlying asset, but the disclosure of the unobservable inputs used by the appraisers would not be meaningful because the range will vary widely from appraisal to appraisal.
(4) The significant unobservable input used in the fair value measurement are the value indices, which are weighted-average spreads to LIBOR based on maturity groups.
(5) Discounts applied to the appraised values primarily include estimated sales costs, but also consider the age of the appraisal, changes in local market conditions and changes in the current condition of the collateral.



	Fair Value at 12/31/17		Valuation Technique	Unobservable Input	Range (Weighted Average)
Interest rate lock commitments	$	1,738	Discounted cash flows	Closing ratio	0 - 99% (89%)⁽¹⁾
Interest rate lock commitments
Premises, furniture and equipment held for sale	1,977		Modified appraised value	Third party appraisal	⁽²⁾
Premises, furniture and equipment held for sale				Appraisal discount	0-10%⁽⁴⁾
Other real estate owned	10,777		Modified appraised value	Third party appraisal	⁽²⁾
				Appraisal discounts	0-10%
Servicing rights	291		Discounted cash flows	Third party valuation	⁽³⁾
Servicing rights
Collateral dependent impaired loans:
Commercial	3,212		Modified appraised value	Third party appraisal	⁽²⁾
Commercial				Appraisal discount	0-15%⁽⁴⁾
Commercial real estate	9,480		Modified appraised value	Third party appraisal	⁽²⁾
				Appraisal discount	0-12%⁽⁴⁾
Agricultural and agricultural real estate	8,406		Modified appraised value	Third party appraisal	⁽²⁾
Agricultural and agricultural real estate				Appraisal discount	0-10%⁽⁴⁾
Residential real estate	1,137		Modified appraised value	Third party appraisal	⁽²⁾
				Appraisal discount	0-12%⁽⁴⁾
Consumer	1,234		Modified appraised value	Third party valuation	⁽²⁾
Consumer				Valuation discount	0-12%⁽⁴⁾

(1) The significant unobservable input used in the fair value measurement is the closing ratio, which represents the percentage of loans currently in a lock position that management estimates will ultimately close. The closing ratio calculation takes into consideration historical data and loan-level data.
(2) Third party appraisals are obtained and updated at least annually to establish the value of the underlying asset, but the disclosure of the unobservable inputs used by the appraisers would not be meaningful because the range will vary widely from appraisal to appraisal.
(3) The significant unobservable input used in the fair value measurement are the value indices, which are weighted-average spreads to LIBOR based on maturity groups.
(4) Discounts applied to the appraised values primarily include estimated sales costs, but also consider the age of the appraisal, changes in local market conditions and changes in the current condition of the collateral.

The changes in fair value of the interest rate lock commitments, which are Level 3 financial instruments and are measured on a recurring basis, are summarized in the following table, in thousands:



	For the Years Ended
	December 31, 2018			December 31, 2017
Balance at January 1,	$	1,738		$	2,790
Acquired interest rate lock commitments	1,383			—
Total gains (losses), net, included in earnings	(3,269		)	(1,479		)
Issuances	2,962			1,875
Settlements	(2,089		)	(1,448		)
Balance at period end,	$	725		$	1,738

Gains included in net gains on sale of loans held for sale attributable to interest rate lock commitments held at December 31, 2018, and December 31, 2017, were $725,000 and $1.7 million, respectively.

The table below is a summary of the estimated fair value of Heartland's financial instruments (as defined by ASC 825) as of December 31, 2018, and December 31, 2017, in thousands. The carrying amounts in the following table are recorded in the consolidated balance sheets under the indicated captions. In accordance with ASC 825, the assets and liabilities that are not financial instruments are not included in the disclosure, including the value of the commercial and mortgage servicing rights, premises, furniture and equipment, premises, furniture and equipment held for sale, OREO, goodwill, other intangibles and other liabilities.

Heartland does not believe that the estimated information presented below is representative of the earnings power or value of Heartland. The following analysis, which is inherently limited in depicting fair value, also does not consider any value associated with either existing customer relationships or the ability of Heartland to create value through loan origination, obtaining deposits or fee generating activities. Many of the estimates presented below are based upon the use of highly subjective information and assumptions and, accordingly, the results may not be precise. Management believes that fair value estimates may not be comparable between financial institutions due to the wide range of permitted valuation techniques and numerous estimates which must be made. Furthermore, because the disclosed fair value amounts were estimated as of the balance sheet date, the amounts actually realized or paid upon maturity or settlement of the various financial instruments could be significantly different.



					Fair Value Measurements at December 31, 2018
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	273,630	$	273,630	$	273,630	$	—	$	—
Time deposits in other financial institutions	4,672		4,672		4,672		—		—
Securities:
Carried at fair value	2,450,709		2,450,709		25,414		2,425,295		—
Held to maturity	236,283		245,341		—		245,341		—
Other investments	28,396		28,396		—		28,396		—
Loans held for sale	119,801		119,801		—		52,577		67,224
Loans, net:
Commercial	1,994,785		1,955,607		—		1,942,675		12,932
Commercial real estate	3,684,213		3,667,138		—		3,666,733		405
Agricultural and agricultural real estate	561,265		553,112		—		542,042		11,070
Residential real estate	670,473		654,596		—		654,118		478
Consumer	434,998		432,016		—		431,392		624
Total Loans, net	7,345,734		7,262,469		—		7,236,960		25,509
Cash surrender value on life insurance	162,892		162,892		—		162,892		—
Derivative financial instruments⁽¹⁾	6,539		6,539		—		6,539		—
Interest rate lock commitments	725		725		—		—		725
Forward commitments	—		—		—		—		—
Financial liabilities:
Deposits
Demand deposits	3,264,737		3,264,737		—		3,264,737		—
Savings deposits	5,107,962		5,107,962		—		5,107,962		—
Time deposits	1,023,730		1,023,730		—		1,023,730		—
Deposits held for sale	106,409		100,241		—		—		100,241
Short term borrowings	227,010		227,010		—		227,010		—
Other borrowings	274,905		276,966		—		276,966		—
Derivative financial instruments⁽²⁾	6,044		6,044		—		6,044		—
Forward commitments	399		399		—		399		—

(1) Includes embedded derivatives, back-to-back loan swaps, fair value hedges, free standing derivative instruments and cash flow hedges.
(2) Includes cash flow hedges, fair value hedges, back-to-back loan swaps, embedded derivatives and free standing derivative instruments.



					Fair Value Measurements at December 31, 2017
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets:
Cash and cash equivalents	$	196,003	$	196,003	$	196,003	$	—	$	—
Time deposits in other financial institutions	9,820		9,820		9,820		—		—
Securities:
Carried at fair value	2,216,753		2,216,753		3,484		2,213,269		—
Held to maturity	253,550		265,494				265,494
Other investments	22,563		22,563		—		22,563		—
Loans held for sale	44,560		44,560		—		44,560		—
Loans, net:
Commercial	1,628,043		1,617,956		—		1,614,744		3,212
Commercial real estate	3,140,427		3,132,542		—		3,123,062		9,480
Agricultural and agricultural real estate	508,075		508,987		—		500,581		8,406
Residential real estate	620,939		614,667		—		613,530		1,137
Consumer	438,294		440,820		—		439,586		1,234
Total Loans, net	6,335,778		6,314,972		—		6,291,503		23,469
Cash surrender value on life insurance	142,818		142,818		—		142,818		—
Derivative financial instruments⁽¹⁾	3,933		3,933		—		3,933		—
Interest rate lock commitments	1,738		1,738		—		—		1,738
Forward commitments	80		80		—		80		—
Financial liabilities:
Deposits
Demand deposits	2,983,128		2,983,128		—		2,983,128		—
Savings deposits	4,240,328		4,240,328		—		4,240,328		—
Time deposits	923,453		923,453		—		923,453		—
Short term borrowings	324,691		324,691		—		324,691		—
Other borrowings	285,011		285,609		—		285,609		—
Derivative financial instruments⁽²⁾	5,167		5,167		—		5,167		—
Forward commitments	232		232		—		232		—

(1) Includes embedded derivatives, back-to-back loan swaps, fair value hedges, free standing derivative instruments and cash flow hedges.
(2) Includes cash flow hedges, fair value hedges, back-to-back loan swaps, embedded derivatives and free standing derivative instruments.

Cash and Cash Equivalents — The carrying amount is a reasonable estimate of fair value due to the short-term nature of these instruments.

Time Deposits in Other Financial Institutions — The carrying amount is a reasonable estimate of the fair value due to the short-term nature of these instruments.

Securities — For equity securities with a readily determinable fair value and debt securities either held to maturity, available for

sale or trading, fair value equals quoted market price if available. If a quoted market price is not available, fair value is estimated using quoted market prices for similar securities. For Level 3 securities, Heartland utilizes independent pricing provided by third

party vendors or brokers.

Other Investments — Fair value measurement of other investments, which consists primarily of FHLB stock, are based on their redeemable value, which is at cost. The market for these securities is restricted to the issuer of the stock and subject to impairment evaluation.

Loans — Beginning in the first quarter of 2018, the fair value of loans were determined using an exit price methodology as prescribed by ASU 2016-01, which was effective on January 1, 2018. The exit price estimation of fair value is based on the present value of the expected cash flows. The projected cash flows are based on the contractual terms of the loans, adjusted for prepayments and a discount rate based on the relative risk of the cash flows. Other considerations include the loan type, remaining life of the loan and credit risk. In comparison, loan fair values as of December 31, 2017, were estimated based on an entrance price methodology, which discounts future cash flows using the current rates at which a similar loan would be made to borrowers with similar credit ratings and for the same remaining maturities. The fair value of non-impaired loans as of December 31, 2018, and December 31, 2017, are not comparable.

The fair value of impaired loans is measured using the fair value of the underlying collateral. The fair value of loans held for sale is estimated using quoted market prices or sales contracts.

Cash surrender value on life insurance — Life insurance policies are held on certain officers. The carrying value of these policies approximates fair value as it is based on the cash surrender value adjusted for other charges or amounts due that are probable at settlement. As such, Heartland classifies the estimated fair value of the cash surrender value on life insurance as Level 2.

Interest Rate Lock Commitments — The fair value of interest rate lock commitments is estimated using an internal valuation model, which includes grouping the interest rate lock commitments by interest rate and terms, applying an estimated closing ratio based on historical experience, and then multiplying by quoted investor prices determined to be reasonably applicable to the loan commitment groups based on interest rate, terms, and rate lock expiration dates of the loan commitment group.

Forward Commitments — The fair value of these instruments is estimated using an internal valuation model, which includes

current trade pricing for similar financial instruments.

Derivative Financial Instruments — The fair value of all derivatives is estimated based on the amount that Heartland would pay or would be paid to terminate the contract or agreement, using current rates, and when appropriate, the current creditworthiness of the counter-party.

Forward Commitments — The fair value of these instruments is estimated using an internal valuation model, which includes current trade pricing for similar financial instruments.

Deposits — The fair value of demand deposits, savings accounts and certain money market deposits is the amount payable on demand at the reporting date. The fair value of fixed maturity certificates of deposit is estimated using the rates currently offered for deposits of similar remaining maturities. If the fair value of the fixed maturity certificates of deposit is calculated at less than the carrying amount, the carrying value of these deposits is reported as the fair value.

Deposits Held for Sale — Prior to December 31, 2018, Heartland entered into agreements with third parties to sell the deposits of five branch locations, which totaled $106.4 million as of December 31, 2018. The estimated fair value in the table above is based on the carrying value of the deposits less the premium Heartland expects to receive in accordance with the sales contract when the transactions are expected to be completed in 2019.

Short-term and Other Borrowings — Rates currently available to Heartland for debt with similar terms and remaining maturities are used to estimate fair value of existing debt.

Commitments to Extend Credit, Unused Lines of Credit and Standby Letters of Credit — Based upon management's analysis of the off balance sheet financial instruments, there are no significant unrealized gains or losses associated with these financial instruments based upon review of the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties.