Choose a state-specific aggregate bonus calculator to model bonus withholding when payroll combines bonus and regular wages in one run.
Aggregate bonus withholding is different from flat bonus withholding because payroll combines the bonus with regular wages in the same run. Start with the state route so the estimate reflects local payroll context as well.
Aggregate bonus withholding combines the bonus and regular wages before payroll tax withholding is calculated. That usually creates a different federal and state withholding result from a separate flat bonus check.
Employees often search for this when they want to know why a combined paycheck feels more heavily taxed than expected.
Use the aggregate bonus calculator when the bonus is paid with regular wages in one payroll. Use the flat bonus calculator when the bonus is paid as a separate supplemental check.
Choosing the correct route matters because the withholding math, annualization effect, and resulting net pay can differ materially.
Browse every state and territory aggregate bonus calculator below to open the dedicated 2026 paycheck page with local tax context and payroll notes.
The calculators on this website are provided by HyprDev LLC and are designed to provide general guidance and estimates. These calculators should not be relied upon for accuracy, such as to calculate exact taxes, payroll or other financial data. Neither these calculators nor the providers and affiliates thereof are providing tax or legal advice. You should refer to a professional adviser or accountant regarding any specific requirements or concerns.
