Eligible basis

(A) In general The eligible basis of an existing building is— (i) in the case of a building which meets the requirements of subparagraph (B), its adjusted basis as of the close of the 1st taxable year of the credit period, and (ii) zero in any other case.

(B) Requirements A building meets the requirements of this subparagraph if— (i) the building is acquired by purchase (as defined in section 179(d)(2)), (ii) there is a period of at least 10 years between the date of its acquisition by the taxpayer and the date the building was last placed in service, (iii) the building was not previously placed in service by the taxpayer or by any person who was a related person with respect to the taxpayer as of the time previously placed in service, and (iv) except as provided in subsection (f)(5), a credit is allowable under subsection (a) by reason of subsection (e) with respect to the building.

(C) Adjusted basis For purposes of subparagraph (A), the adjusted basis of any building shall not include so much of the basis of such building as is determined by reference to the basis of other property held at any time by the person acquiring the building.

(D) Special rules for subparagraph (B) (i) Special rules for certain transfers For purposes of determining under subparagraph (B)(ii) when a building was last placed in service, there shall not be taken into account any placement in service— (I) in connection with the acquisition of the building in a transaction in which the basis of the building in the hands of the person acquiring it is determined in whole or in part by reference to the adjusted basis of such building in the hands of the person from whom acquired, (II) by a person whose basis in such building is determined under section 1014(a) (relating to property acquired from a decedent), (III) by any governmental unit or qualified nonprofit organization (as defined in subsection (h)(5)) if the requirements of subparagraph (B)(ii) are met with respect to the placement in service by such unit or organization and all the income from such property is exempt from Federal income taxation, (IV) by any person who acquired such building by foreclosure (or by instrument in lieu of foreclosure) of any purchase-money security interest held by such person if the requirements of subparagraph (B)(ii) are met with respect to the placement in service by such person and such building is resold within 12 months after the date such building is placed in service by such person after such foreclosure, or (V) of a single-family residence by any individual who owned and used such residence for no other purpose than as his principal residence. (ii) Related person For purposes of subparagraph (B)(iii), a person (hereinafter in this subclause referred to as the “related person”) is related to any person if the related person bears a relationship to such person specified in section 267(b) or 707(b)(1), or the related person and such person are engaged in trades or businesses under common control (within the meaning of subsections (a) and (b) of section 52).

(A) In general Except as provided in subparagraph (B), the eligible basis of any building shall be reduced by an amount equal to the portion of the adjusted basis of the building which is attributable to residential rental units in the building which are not low-income units and which are above the average quality standard of the low-income units in the building.

(B) Exception where taxpayer elects to exclude excess costs (i) In general Subparagraph (A) shall not apply with respect to a residential rental unit in a building which is not a low-income unit if— (I) the excess described in clause (ii) with respect to such unit is not greater than 15 percent of the cost described in clause (ii)(II), and (II) the taxpayer elects to exclude from the eligible basis of such building the excess described in clause (ii) with respect to such unit. (ii) Excess The excess described in this clause with respect to any unit is the excess of— (I) the cost of such unit, over (II) the amount which would be the cost of such unit if the average cost per square foot of low-income units in the building were substituted for the cost per square foot of such unit. The Secretary may by regulation provide for the determination of the excess under this clause on a basis other than square foot costs.

For purposes of this subsection—

(A) In general Except as provided in subparagraphs (B) and (C), the adjusted basis of any building shall be determined without regard to the adjusted basis of any property which is not residential rental property.

(B) Basis of property in common areas, etc., included The adjusted basis of any building shall be determined by taking into account the adjusted basis of property (of a character subject to the allowance for depreciation) used in common areas or provided as comparable amenities to all residential rental units in such building.

(C) Inclusion of basis of property used to provide services for certain nontenants (i) In general The adjusted basis of any building located in a qualified census tract (as defined in paragraph (5)(B)(ii)) shall be determined by taking into account the adjusted basis of property (of a character subject to the allowance for depreciation and not otherwise taken into account) used throughout the taxable year in providing any community service facility. (ii) Limitation The increase in the adjusted basis of any building which is taken into account by reason of clause (i) shall not exceed the sum of— (I) 25 percent of so much of the eligible basis of the qualified low-income housing project of which it is a part as does not exceed $15,000,000, plus (II) 10 percent of so much of the eligible basis of such project as is not taken into account under subclause (I). For purposes of the preceding sentence, all community service facilities which are part of the same qualified low-income housing project shall be treated as one facility. (iii) Community service facility For purposes of this subparagraph, the term “community service facility” means any facility designed to serve primarily individuals whose income is 60 percent or less of area median income (within the meaning of subsection (g)(1)(B)).

(D) No reduction for depreciation The adjusted basis of any building shall be determined without regard to paragraphs (2) and (3) of section 1016(a).

(A) Federal grants not taken into account in determining eligible basis The eligible basis of a building shall not include any costs financed with the proceeds of a federally funded grant.

(B) Increase in credit for buildings in high cost areas (i) In general In the case of any building located in a qualified census tract or difficult development area which is designated for purposes of this subparagraph— (I) in the case of a new building, the eligible basis of such building shall be 130 percent of such basis determined without regard to this subparagraph, and (II) in the case of an existing building, the rehabilitation expenditures taken into account under subsection (e) shall be 130 percent of such expenditures determined without regard to this subparagraph. (ii) Qualified census tract (I) In general The term “qualified census tract” means any census tract which is designated by the Secretary of Housing and Urban Development and, for the most recent year for which census data are available on household income in such tract, either in which 50 percent or more of the households have an income which is less than 60 percent of the area median gross income for such year or which has a poverty rate of at least 25 percent. If the Secretary of Housing and Urban Development determines that sufficient data for any period are not available to apply this clause on the basis of census tracts, such Secretary shall apply this clause for such period on the basis of enumeration districts. (II) Limit on MSA’s designated The portion of a metropolitan statistical area which may be designated for purposes of this subparagraph shall not exceed an area having 20 percent of the population of such metropolitan statistical area. (III) Determination of areas For purposes of this clause, each metropolitan statistical area shall be treated as a separate area and all nonmetropolitan areas in a State shall be treated as 1 area. (iii) Difficult development areas (I) In general The term “difficult development areas” means any area designated by the Secretary of Housing and Urban Development as an area which has high construction, land, and utility costs relative to area median gross income. (II) Limit on areas designated The portions of metropolitan statistical areas which may be designated for purposes of this subparagraph shall not exceed an aggregate area having 20 percent of the population of such metropolitan statistical areas. A comparable rule shall apply to nonmetropolitan areas. (iv) Special rules and definitions For purposes of this subparagraph— (I) population shall be determined on the basis of the most recent decennial census for which data are available, (II) area median gross income shall be determined in accordance with subsection (g)(4), (III) the term “metropolitan statistical area” has the same meaning as when used in section 143(k)(2)(B), and (IV) the term “nonmetropolitan area” means any county (or portion thereof) which is not within a metropolitan statistical area. (v) Buildings designated by State housing credit agency Any building which is designated by the State housing credit agency as requiring the increase in credit under this subparagraph in order for such building to be financially feasible as part of a qualified low-income housing project shall be treated for purposes of this subparagraph as located in a difficult development area which is designated for purposes of this subparagraph. The preceding sentence shall not apply to any building if paragraph (1) of subsection (h) does not apply to any portion of the eligible basis of such building by reason of paragraph (4) of such subsection.

(A) In general Paragraph (2)(B)(ii) shall not apply to any federally- or State-assisted building.

(B) Buildings acquired from insured depository institutions in default On application by the taxpayer, the Secretary may waive paragraph (2)(B)(ii) with respect to any building acquired from an insured depository institution in default (as defined in section 3 of the Federal Deposit Insurance Act) or from a receiver or conservator of such an institution.

(C) Federally- or State-assisted building For purposes of this paragraph— (i) Federally-assisted building The term “federally-assisted building” means any building which is substantially assisted, financed, or operated under section 8 of the United States Housing Act of 1937, section 221(d)(3), 221(d)(4), or 236 of the National Housing Act, section 515 of the Housing Act of 1949, or any other housing program administered by the Department of Housing and Urban Development or by the Rural Housing Service of the Department of Agriculture. (ii) State-assisted building The term “State-assisted building” means any building which is substantially assisted, financed, or operated under any State law similar in purposes to any of the laws referred to in clause (i).

(A) In general Under regulations prescribed by the Secretary, in the case of a building described in subparagraph (B) (or interest therein) which is acquired by the taxpayer— (i) paragraph (2)(B) shall not apply, but (ii) the credit allowable by reason of subsection (a) to the taxpayer for any period after such acquisition shall be equal to the amount of credit which would have been allowable under subsection (a) for such period to the prior owner referred to in subparagraph (B) had such owner not disposed of the building.

(B) Description of building A building is described in this subparagraph if— (i) a credit was allowed by reason of subsection (a) to any prior owner of such building, and (ii) the taxpayer acquired such building before the end of the compliance period for such building with respect to such prior owner (determined without regard to any disposition by such prior owner).