the preparation, assembly, or installation of the property described in clause (i) or (ii) of subsection (c)(1)(A) shall be taken into account in determining the qualified disaster mitigation expenditures made by the taxpayer during the taxable year. (g) Documentation Any taxpayer claiming the credit under this section shall provide the Secretary with adequate documentation regarding the specific qualified disaster mitigation expenditures made by the taxpayer during the taxable year, as well as such other information or documentation as the Secretary may require. . (b) Conforming amendment The table of sections for subpart A of part IV of subchapter A of chapter 1 of such Code is amended by inserting after the item relating to section 25D the following new item: Sec. 25E. Disaster mitigation expenditures. . (c) Effective date The amendments made by this section shall apply to taxable years beginning after December 31, 2019. 3. Business-related credit for disaster mitigation (a) In general Subpart D of part IV of subchapter A of chapter 1 of the Internal Revenue Code of 1986 is amended by inserting after section 45S the following new section: 45T. Disaster mitigation credit (a) General rule For purposes of section 38, the disaster mitigation credit determined under this section for any taxable year is an amount equal to 25 percent of the qualified disaster mitigation expenditures made by the taxpayer during the taxable year. (b) Maximum credit (1) In general Subject to paragraph (2), the amount of the credit determined under subsection (a) for any taxable year shall not exceed $5,000. (2) Phaseout (A) In general The amount under paragraph (1) for the taxable year shall be reduced (but not below zero) by an amount which bears the same ratio to the amount under such paragraph as— (i) the amount (not less than zero) equal to the average gross receipts of the taxpayer over the 3 preceding taxable years minus $5,000,000, bears to (ii) $5,000,000. (B) Inflation adjustment In the case of any taxable year after 2020,