The period ends on the date the last item of new section 38 property that is part of that unit is available to be placed in service. Property that is not new section 38 property, such as a building, is not considered part of an integrated unit for purposes of determining the normal construction period of that unit. For example, if a manufacturing plant has a normal construction period of two years or more but the equipment (i.e., new section 38 property) to be installed in the plant has a normal construction period of less than two years, the plant and the equipment do not constitute an integrated unit with a construction period of two years or more and the equipment is not progress expenditure property.
(See, however, section 46(d)(4)(A) and paragraph (h)(3)(i) of this section, relating to the time when amounts for component parts and materials are properly chargeable to capital account);
Example.
Example.
Once the status of the property as self-constructed or non-self-constructed property in the hands of the transferee has been determined, all rules under this section for determining the amount of qualified progress expenditures for that type of property apply. For example, if the property is non-self-constructed in the hands of the transferee, amounts merely incurred (but not paid) for the transfer are not taken into account as qualified progress expenditures. Actual payment is necessary (see paragraph (j)(3) of this section). In applying section 46(d)(3)(B)(ii), the amount paid or incurred for the transfer (to the extent that it qualifies as a payment for construction under the first sentence of this paragraph (r)(3)(ii)) is considered to be part of the overall cost to the transferee of construction by another person, and the portion of construction which is completed during the taxable year is determined by taking into account construction that was completed before the constructed property was acquired by the transferee. If the transferee makes an election under section 46(d) and this section for the taxable year in which the transfer occurs, then for purposes of applying the presumption in section 46(d)(4)(D) that construction is deemed to occur not more rapidly than ratably over the normal construction period, the transferee's normal construction period is considered to have begun on the date on which physical work on construction of the acquired property began.
26 C.F.R. §1.46-5