Updated November 2026 — includes IRS Rev. Proc. 2026-35
US federal tax numbers you can actually use
Free calculators and reference tables for the 2025–2027 tax years, including the four new Schedule 1-A deductions for overtime, tips, seniors, and car loan interest. Every figure is taken from the published IRS revenue procedures and cited on the page.
Just released: 2027 tax year numbers
The IRS published the 2027 inflation adjustments on November 5, 2026 — bracket thresholds, standard deduction, and credits for returns filed in early 2028.
New deductions on Schedule 1-A (2025–2028)
Four deductions created by the Working Families Tax Cuts law, claimable whether or not you itemize. See what each is worth for your situation.
Everyday calculators
Estimate federal tax and take-home pay using the current IRS tables.
Estimates only. This site is not tax advice and does not prepare or file returns. Figures come from IRS revenue procedures; your actual liability depends on your complete return. See the disclaimer.