Bonus
Bonus Tax Calculator
Annual bonuses are already included in the paycheck calculator's gross pay. Supplemental-rate withholding — the flat method most employers use on a separate bonus cheque — needs official rates.
Official data required
- IRS 2026 supplemental wage withholding rate and the high-earner threshold rate
- New York State and NYC 2026 supplemental withholding rates
Already in place
- Annual bonus input and gross pay module
- FICA modules including the additional Medicare threshold
- Results breakdown and take-home summary
Calculations are estimates for informational purposes and are not tax, legal, or financial advice. Actual withholding and take-home pay may differ.