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permanent. The maximum exclusion amount of $5,250 will be adjusted for inflation for taxable years beginning after 2026. .10 Section 70306 of the OBBBA amends § 179 by increasing the maximum amount a taxpayer may expense under § 179(b)(1) and the phaseout threshold amount under § 179(b)(2). The OBBBA amendments to § 179 apply to property placed in service in taxable years beginning after December 31, 2024. Under § 179(b)(1), the maximum amount allowable is $2,500,000. Under § 179(b)(2), the $2,500,000 amount is reduced by the amount by which the cost of § 179 property placed in service during the taxable year exceeds $4,000,000, but not below $0. These amounts are adjusted for inflation for taxable years beginning after December 31, 2025. See section 3 of this revenue procedure for removal of section 2.25 of Rev. Proc. 2024-40. .11 Section 70507 of the OBBBA terminated § 179D for property the construction of which begins after June 30, 2026. .12 Section 70105 of the OBBBA amended § 199A(i) to add a minimum deduction of $400. Additionally, a taxpayer will be required to have a minimum of $1,000 of qualified business income to be eligible for the deduction, effective for taxable years beginning after December 31, 2025. The $400 and $1,000 amounts in § 199A(i) will be adjusted for inflation for taxable years beginning after 2026. 13 Section 70115 of the OBBBA amended § 529A(b)(2)(B)(i) to vary the manner in which the aggregate annual limitation on contributions made after December 31, 2025, is adjusted for inflation from that provided in § 2503(b). Accordingly, the inflation adjustment to the amount under § 529A(b)(2)(B)(i) is separately added to this revenue procedure.