Tax-update changelog

What changed in the law, what changed in the software, and when.

One entry per change, newest first, with the authority, the effective date and the release that applied it. Reviewed by a CPA before publication.

Figure 1. Illustrative screen with sample data: one asset, four books, the federal book selected; the rate cites the table it came from.
EffectiveAuthorityChangeIn the software
2025-01-19 (acquisitions after)Public Law 119-21, section 70301, amending IRC 168(k)100% bonus depreciation restored and made permanent for qualifying property acquired after 19 January 2025. Property acquired earlier keeps the phase-down rate for the year placed in service (60% in 2024, 40% in 2025).Bonus rate is chosen from the acquisition date on the asset; the placed-in-service date alone no longer decides it. Applied in the 2025 tax-table update. Existing 2025 additions were recalculated on update; the change appears on each affected asset's audit trail.
2025-01-01 (tax years beginning after 2024-12-31)Public Law 119-21, section 70306, amending IRC 179Section 179 dollar limit raised to $2,500,000 and the phase-out threshold to $4,000,000, indexed for inflation in later years.2025 limits loaded; the phase-out test across the entity's additions uses the new threshold. Applied in the 2025 tax-table update.
2025-01-19 (construction beginning after)Public Law 119-21, section 70307, new IRC 168(n)Qualified production property: an election to expense 100% of the cost of certain nonresidential real property used in manufacturing, production or refining, where construction begins after 19 January 2025 and before 1 January 2029 and the property is placed in service before 1 January 2031.A qualified-production-property election flag on 39-year property, with the placed-in-service window validated. Applied in the 2025 tax-table update; consult your preparer on eligibility.
2025-01-01Rev. Proc. 2024-40 (inflation adjustments)Pre-act Section 179 limit of $1,250,000 and threshold of $3,130,000 for 2025, superseded by the act for tax years beginning after 2024.Retained for short tax years beginning in 2024; otherwise superseded.
2024-01-01IRC 168(k)(6) phase-down, as enacted 2017Bonus depreciation at 60% for property placed in service in 2024.Applied in the 2024 tax-table update.
State conformityEach state's revenue codeStates that decouple from federal bonus depreciation, and states with their own Section 179 limits, continue to differ after the 2025 act. Conformity status is maintained per state.The state book's conformity table is updated as states enact responses to the 2025 act; each state change is listed here with its own date as it is applied.
Figure 2. Federal and state changes affecting depreciation and the software release that applied each, as of 20 September 2026.

Luxury automobile limits, ADS lives and other annual revenue-procedure figures are updated each year and listed here with the revenue procedure number once published. Entries above describe federal law; they are not advice for a particular taxpayer.

The questions asked about tax updates, answered.

Does the software apply the 100% bonus depreciation restored in 2025?

Yes, for property acquired after 19 January 2025, chosen from the acquisition date on the asset; earlier property keeps its phase-down rate. Applied in the 2025 tax-table update.

What are the Section 179 limits for 2025?

$2,500,000 with a $4,000,000 phase-out threshold for tax years beginning after 31 December 2024, indexed later, under Public Law 119-21.

Are state conformity changes tracked?

Yes. The state conformity table is updated as states respond to the 2025 act, and each change is listed here with its date.

Are tax-law updates a separate charge?

No. They are included in every plan.

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