Income Taxes	9 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES i3 Verticals, Inc. is taxed as a corporation and pays corporate federal, state and local taxes on income allocated to it from i3 Verticals, LLC based on i3 Verticals, Inc.'s economic interest in i3 Verticals, LLC. i3 Verticals, LLC's members, including the Company are liable for federal, state and local income taxes based on their share of i3 Verticals, LLC's pass-through taxable income. i3 Verticals, LLC is not a taxable entity for federal income tax purposes but is subject to and reports entity level tax in both Tennessee and Texas. In addition, certain subsidiaries of i3 Verticals, LLC are corporations that are subject to state and Federal income taxes. The Company’s tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter, the Company updates its estimate of the annual effective tax rate, and if the Company’s estimated tax rate changes, it makes a cumulative adjustment in that period. The Company’s provision for income taxes was $692 and $553 for the three and nine months ended June 30, 2018, respectively, and $171 and $101 during the three and nine months ended June 30, 2017, respectively. On December 22, 2017, the Tax Cuts and Jobs Act was enacted into law. The new legislation contains several key tax provisions, including the reduction of the federal corporate income tax rate to 21% effective January 1, 2018, as well as a variety of other changes, including limitation of the tax deductibility of interest expense, acceleration of expensing of certain business assets and reductions in the amount of executive pay that could qualify as a tax deduction. The Company is assessing the impact of the enacted tax law on its business and its consolidated financial statements and recorded a provisional discrete tax benefit related to the re-measurement of its deferred tax assets and liabilities at SDCR, Inc. of $504 for the reduced federal tax rates during the nine-month period ended June 30, 2018. Tax Receivable Agreement On June 25, 2018, the Company entered into a Tax Receivable Agreement with i3 Verticals, LLC and each of the Continuing Equity Owners that provides for the payment by the Company to the Continuing Equity Owners of 85% of the amount of certain tax benefits, if any, that it actually realizes, or in some circumstances, is deemed to realize in its tax reporting, as a result of (i) future redemptions funded by the Company or exchanges, or deemed exchanges in certain circumstances, of Common Units of i3 Verticals, LLC for Class A common stock of i3 Verticals, Inc. or cash, and (ii) certain additional tax benefits attributable to payments made under the Tax Receivable Agreement. These tax benefit payments are not conditioned upon one or more of the Continuing Equity Owners maintaining a continued ownership interest in i3 Verticals, LLC. If a Continuing Equity Owner transfers Common Units but does not assign to the transferee of such units its rights under the Tax Receivable Agreement, such Continuing Equity Owner generally will continue to be entitled to receive payments under the Tax Receivable Agreement arising in respect of a subsequent exchange of such Common Units. In general, the Continuing Equity Owners’ rights under the Tax Receivable Agreement may not be assigned, sold, pledged or otherwise alienated to any person, other than certain permitted transferees, without (a) the Company's prior written consent, which should not be unreasonably withheld, conditioned or delayed, and (b) such persons becoming a party to the Tax Receivable Agreement and agreeing to succeed to the applicable Continuing Equity Owner’s interest therein. The Company expects to benefit from the remaining 15% of the tax benefits, if any, that the Company may realize. During the three and nine months ended June 30, 2018, in conjunction with the Company's IPO, i3 Verticals, Inc. purchased Class B common stock from a Continuing Equity Owner for $4,635. This transaction triggered an increase in the tax basis of i3 Verticals, LLC subject to the provisions of the Tax Receivable Agreement. We recognized a deferred tax asset in the amount of $960 and a corresponding liability of $816, representing 85% of the tax benefits due to the Continuing Equity Owners as of June 30, 2018.

INCOME TAXES

i3 Verticals, Inc. is taxed as a corporation and pays corporate federal, state and local taxes on income allocated to it from i3 Verticals, LLC based on i3 Verticals, Inc.'s economic interest in i3 Verticals, LLC. i3 Verticals, LLC's members, including the Company are liable for federal, state and local income taxes based on their share of i3 Verticals, LLC's pass-through taxable income. i3 Verticals, LLC is not a taxable entity for federal income tax purposes but is subject to and reports entity level tax in both Tennessee and Texas. In addition, certain subsidiaries of i3 Verticals, LLC are corporations that are subject to state and Federal income taxes.

The Company’s tax provision for interim periods is determined using an estimate of its annual effective tax rate, adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter, the Company updates its estimate of the annual effective tax rate, and if the Company’s estimated tax rate changes, it makes a cumulative adjustment in that period. The Company’s provision for income taxes was $692 and $553 for the three and nine months ended June 30, 2018, respectively, and $171 and $101 during the three and nine months ended June 30, 2017, respectively.

On December 22, 2017, the Tax Cuts and Jobs Act was enacted into law. The new legislation contains several key tax provisions, including the reduction of the federal corporate income tax rate to 21% effective January 1, 2018, as well as a variety of other changes, including limitation of the tax deductibility of interest expense, acceleration of expensing of certain business assets and reductions in the amount of executive pay that could qualify as a tax deduction. The Company is assessing the impact of the enacted tax law on its business and its consolidated financial statements and recorded a provisional discrete tax benefit related to the re-measurement of its deferred tax assets and liabilities at SDCR, Inc. of $504 for the reduced federal tax rates during the nine-month period ended June 30, 2018.

Tax Receivable Agreement

On June 25, 2018, the Company entered into a Tax Receivable Agreement with i3 Verticals, LLC and each of the Continuing Equity Owners that provides for the payment by the Company to the Continuing Equity Owners of 85% of the amount of certain tax benefits, if any, that it actually realizes, or in some circumstances, is deemed to realize in its tax reporting, as a result of (i) future redemptions funded by the Company or exchanges, or deemed exchanges in certain circumstances, of Common Units of i3 Verticals, LLC for Class A common stock of i3 Verticals, Inc. or cash, and (ii) certain additional tax benefits attributable to payments made under the Tax Receivable Agreement. These tax benefit payments are not conditioned upon one or more of the Continuing Equity Owners maintaining a continued ownership interest in i3 Verticals, LLC. If a Continuing Equity Owner transfers Common Units but does not assign to the transferee of such units its rights under the Tax Receivable Agreement, such Continuing Equity Owner generally will continue to be entitled to receive payments under the Tax Receivable Agreement arising in respect of a subsequent exchange of such Common Units. In general, the Continuing Equity Owners’ rights under the Tax Receivable Agreement may not be assigned, sold, pledged or otherwise alienated to any person, other than certain permitted transferees, without (a) the Company's prior written consent, which should not be unreasonably withheld, conditioned or delayed, and (b) such persons becoming a party to the Tax Receivable Agreement and agreeing to succeed to the applicable Continuing Equity Owner’s interest therein. The Company expects to benefit from the remaining 15% of the tax benefits, if any, that the Company may realize.

During the three and nine months ended June 30, 2018, in conjunction with the Company's IPO, i3 Verticals, Inc. purchased Class B common stock from a Continuing Equity Owner for $4,635. This transaction triggered an increase in the tax basis of i3 Verticals, LLC subject to the provisions of the Tax Receivable Agreement. We recognized a deferred tax asset in the amount of $960 and a corresponding liability of $816, representing 85% of the tax benefits due to the Continuing Equity Owners as of June 30, 2018.