How to use this calculator
Estimate a bonus after federal supplemental withholding, FICA and state tax. Use it to separate a bonus from base pay and see the effect of federal supplemental withholding, FICA and a state estimate. The calculator runs in the browser and is designed for planning rather than tax filing. Results can differ from a real payroll system because withholding forms, local taxes, benefits, year-to-date wages and employer settings are not always available to a public calculator. PaycheckBeacon keeps this tool on its own indexable page so the explanation, metadata and internal links match the specific task instead of hiding every tool inside one JavaScript-only interface.