Unadjusted depreciable basis
(3) Unadjusted depreciable basis is the basis of property for purposes of section 1011 without regard to any adjustments described in section 1016(a)(2) and (3). This basis reflects the reduction in basis for the percentage of the taxpayer's use of property for the taxable year other than in the taxpayer's trade or business (or for the production of income), for any portion of the basis the taxpayer properly elects to treat as an expense under section 179, section 179C, section 181, or any similar provision, and for any adjustments to basis provided by other provisions of the Internal Revenue Code and the regulations under the Code (other than section 1016(a)(2) and (3)) (for example, a reduction in basis by the amount of the disabled access credit pursuant to section 44(d)(7)). For property subject to a lease, see section 167(c)(2).