Alternative minimum taxable income
(f) Alternative minimum taxable income(1) In general. Under section 56(a)(3), a taxpayer subject to the AMT must use the PCM to determine its AMTI from any long-term contract entered into on or after March 1, 1986, that is not a home construction contract, as defined in 1.460-3(b)(2). For AMTI purposes, the PCM must include any election under paragraph (b)(6) of this section (concerning the 10-percent method) or under 1.460-5(c) (concerning the simplified cost-to-cost method) that the taxpayer has made for regular tax purposes. For exempt construction contracts described in 1.460-3(b)(1)(ii), a taxpayer must use the simplified cost-to-cost method to determine the completion factor for AMTI purposes. Except as provided in paragraph (f)(2) of this section, a taxpayer must use AMTI costs and AMTI methods, such as the depreciation method described in section 56(a)(1), to determine the completion factor of a long-term contract (except a home construction contract) for AMTI purposes. (2) Election to use regular completion factors. Under this paragraph (f)(2), a taxpayer may elect for AMTI purposes to determine the completion factors of all of its long-term contracts using the methods of accounting and allocable contract costs used for regular federal income tax purposes. A taxpayer makes this election by using regular methods and regular costs to compute the completion factors of all long-term contracts entered into during the taxable year of the election for AMTI purposes on its original federal income tax return for the election year. This election is a method of accounting and, thus, applies to all long-term contracts entered into during and after the taxable year of the election. Although a taxpayer may elect to compute the completion factor of its long-term contracts using regular methods and regular costs, an election under this paragraph (f)(2) does not eliminate a taxpayer's obligation to comply with the requirements of section 55 when computing AMTI. For example, although a taxpayer may elect to use the depreciation methods used for regular tax purposes to compute the completion factor of its long-term contracts for AMTI purposes, the taxpayer must use the depreciation methods permitted by section 56 to compute AMTI.