26 U.S.C. § 47: Rehabilitation credit

For purposes of section 46, for any taxable year during the 5-year period beginning in the taxable year in which a qualified rehabilitated building is placed in service, the rehabilitation credit for such year is an amount equal to the ratable share for such year. For purposes of paragraph (1), the ratable share for any taxable year during the period described in such paragraph is the amount equal to 20 percent of the qualified rehabilitation expenditures with respect to the qualified rehabilitated building, as allocated ratably to each year during such period. Qualified rehabilitation expenditures with respect to any qualified rehabilitated building shall be taken into account for the taxable year in which such qualified rehabilitated building is placed in service. The amount which would (but for this paragraph) be taken into account under paragraph (1) with respect to any qualified rehabilitated building shall be reduced (but not below zero) by any amount of qualified rehabilitation expenditures taken into account under subsection (d) by the taxpayer or a predecessor of the taxpayer (or, in the case of a sale and leaseback described in section 50(a)(2)(C), by the lessee), to the extent any amount so taken into account has not been required to be recaptured under section 50(a). such building has been substantially rehabilitated, such building was placed in service before the beginning of the rehabilitation, such building is a certified historic structure, and depreciation (or amortization in lieu of depreciation) is allowable with respect to such building. the adjusted basis of such building (and its structural components), or $5,000. In the case of any rehabilitation which may reasonably be expected to be completed in phases set forth in architectural plans and specifications completed before the rehabilitation begins, clause (i) shall be applied by substituting “60-month period” for “24-month period”. The Secretary shall prescribe by regulation rules for applying this subparagraph to lessees. Rehabilitation includes reconstruction. nonresidential real property, residential rental property, real property which has a class life of more than 12.5 years, or an addition or improvement to property described in subclause (I), (II), or (III), and in connection with the rehabilitation of a qualified rehabilitated building. Any expenditure with respect to which the taxpayer does not use the straight line method over a recovery period determined under subsection (c) or (g) of section 168. The preceding sentence shall not apply to any expenditure to the extent the alternative depreciation system of section 168(g) applies to such expenditure by reason of subparagraph (B) or (C) of section 168(g)(1). The cost of acquiring any building or interest therein. Any expenditure attributable to the enlargement of an existing building. Any expenditure attributable to the rehabilitation of a qualified rehabilitated building unless the rehabilitation is a certified rehabilitation (within the meaning of subparagraph (C)). Any expenditure in connection with the rehabilitation of a building which is allocable to the portion of such property which is (or may reasonably be expected to be) tax-exempt use property (within the meaning of section 168(h), except that “50 percent” shall be substituted for “35 percent” in paragraph (1)(B)(iii) thereof). This clause shall not apply for purposes of determining under paragraph (1)(C) whether a building has been substantially rehabilitated. Any expenditure of a lessee of a building if, on the date the rehabilitation is completed, the remaining term of the lease (determined without regard to any renewal periods) is less than the recovery period determined under section 168(c). For purposes of subparagraph (B), the term “certified rehabilitation” means any rehabilitation of a certified historic structure which the Secretary of the Interior has certified to the Secretary as being consistent with the historic character of such property or the district in which such property is located. For purposes of subparagraph (A), the terms “nonresidential real property,” “residential rental property,” and “class life” have the respective meanings given such terms by section 168. is listed in the National Register, or is located in a registered historic district and is certified by the Secretary of the Interior to the Secretary as being of historic significance to the district. any district listed in the National Register, and which is designated under a statute of the appropriate State or local government, if such statute is certified by the Secretary of the Interior to the Secretary as containing criteria which will substantially achieve the purpose of preserving and rehabilitating buildings of historic significance to the district, and which is certified by the Secretary of the Interior to the Secretary as meeting substantially all of the requirements for the listing of districts in the National Register. if such building is self-rehabilitated property, any qualified rehabilitation expenditure with respect to such building shall be taken into account for the taxable year for which such expenditure is properly chargeable to capital account with respect to such building, and if such building is not self-rehabilitated property, any qualified rehabilitation expenditure with respect to such building shall be taken into account for the taxable year in which paid. the normal rehabilitation period for such building is 2 years or more, and it is reasonable to expect that such building will be a qualified rehabilitated building in the hands of the taxpayer when it is placed in service. beginning with the date on which physical work on the rehabilitation begins (or, if later, the first day of the first taxable year to which an election under this subsection applies), and ending on the date on which it is expected that the property will be available for placing in service. at a time not earlier than the time at which it becomes irrevocably devoted to use in the building, and as if (at the time referred to in clause (i)) the taxpayer had expended an amount equal to that portion of the cost to the taxpayer of such component or other property which, for purposes of this subpart, is properly chargeable (during such taxable year) to capital account with respect to such building. Any amount borrowed directly or indirectly by the taxpayer from the person rehabilitating the property for him shall not be treated as an amount expended for such rehabilitation. In the case of a building which is not self-rehabilitated, the amount taken into account under paragraph (1)(B) for any taxable year shall not exceed the amount which represents the portion of the overall cost to the taxpayer of the rehabilitation which is properly attributable to the portion of the rehabilitation which is completed during such taxable year. the amount which (but for clause (i)) would have been taken into account under paragraph (1)(B) exceeds the limitation of clause (i), then the amount of such excess shall be taken into account under paragraph (1)(B) for the succeeding taxable year, or the limitation of clause (i) exceeds the amount taken into account under paragraph (1)(B), then the amount of such excess shall increase the limitation of clause (i) for the succeeding taxable year. The determination under subparagraph (C)(i) of the portion of the overall cost to the taxpayer of the rehabilitation which is properly attributable to rehabilitation completed during any taxable year shall be made, under regulations prescribed by the Secretary, on the basis of engineering or architectural estimates or on the basis of cost accounting records. Unless the taxpayer establishes otherwise by clear and convincing evidence, the rehabilitation shall be deemed to be completed not more rapidly than ratably over the normal rehabilitation period. No qualified rehabilitation expenditures shall be taken into account under this subsection for any period before the first day of the first taxable year to which an election under this subsection applies. the taxable year in which the building is placed in service, or the first taxable year for which recapture is required under section 50(a)(2) with respect to such property, For purposes of this subsection, the term “self-rehabilitated building” means any building if it is reasonable to believe that more than half of the qualified rehabilitation expenditures for such building will be made directly by the taxpayer. This subsection shall apply to any taxpayer only if such taxpayer has made an election under this paragraph. Such an election shall apply to the taxable year for which made and all subsequent taxable years. Such an election, once made, may be revoked only with the consent of the Secretary. Except as provided in paragraph (2), the amendments made by this section [amending this section and section 145 of this title ] shall apply to amounts paid or incurred after December 31, 2017 . owned or leased by the taxpayer during the entirety of the period after December 31, 2017 , and with respect to which the 24-month period selected by the taxpayer under clause (i) of section 47(c)(1)(B) of the Internal Revenue Code (as amended by subsection (b)), or the 60-month period applicable under clause (ii) of such section, begins not later than 180 days after the date of the enactment of this Act [ Dec. 22, 2017 ],