Legal / Disclaimer

BonusTaxCalc.com provides informational estimates only. The calculator is designed to produce a narrow federal bonus withholding estimate using a deterministic methodology based on the supplemental wage rules described on the site. Results are approximate and should be reviewed against payroll records and official sources before any decision is made.

This website does not provide tax advice, legal advice, payroll advice, accounting advice, or individualized financial advice. The tool is not a substitute for employer payroll documentation, IRS publications, or guidance from a qualified professional familiar with your specific circumstances.

The estimate displayed on this site does not attempt to model every payroll variable. It may exclude state taxes, Social Security, Medicare, retirement deductions, insurance deductions, timing differences, or employer-specific withholding settings. Because of that narrow scope, the estimate should be treated as a planning reference rather than a final payroll statement.

By using this website, you agree that you are responsible for reviewing the output before relying on it. BonusTaxCalc.com makes no promise that every output will match the exact withholding used by a particular employer or payroll platform.