W-4 Withholding Calculator

IRS Form W-4 (2025) — annual withholding estimate.

Annual tax (before credits)
Annual credits
Annual withholding
Withholding per period

Simplified approximation of the IRS Publication 15-T "wage bracket / percentage" method. Real paychecks may differ by a few percent.

About this tool

W-4 Withholding Calculator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.

Category: Tax & Government — US Federal. Browse more Tax & Government — US Federal tools.