W-4 Withholding Calculator
IRS Form W-4 (2025) — annual withholding estimate.
- Annual tax (before credits)
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- Annual credits
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- Annual withholding
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- Withholding per period
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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.
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