Many tax, expensing, and penalty figures are adjusted annually for cost-of-living increases. These 2027 inflation-adjusted tax numbers are Thomson Reuters estimates. The IRS will publish official figures later this year.
Because of the government shutdown in 2025, the Bureau of Labor Statistics failed to publish a consumer price index number for October 2025. Based on TR’s interpretation of IRC § 1(f), we estimated these 2027 numbers using the 11 months of published BLS CPI numbers from September 2025 through August 2026.
For the projected 2027 adjustments for key
- transfer tax and foreign items, see here,
- expensing and accounting method limitations, see here,
- health, charitable, compliance, and other specialty items, see here,
- civil penalties, see here, and
- individual tax items, see here
To dig deeper, visit the original article on the Thomson Reuters blog.