Missouri charges 4% flat state income tax plus local taxes in some areas. Use the overtime tax calculator pre-loaded with Missouri rates.
Open Overtime Tax Calculator →When you work overtime in Missouri, each extra hour is subject to federal supplemental withholding (typically 22%), FICA (7.65%), and Missouri's flat 4% state tax. Local taxes in some Missouri areas add to this burden. The overtime calculator shows you the real after-tax value of overtime work with Missouri rates, so you can decide whether extra hours are worth it.
Missouri levies a flat 4% state income tax on all taxable income regardless of how much you earn. This makes tax planning straightforward: for every additional dollar you earn, 4 cents goes to Missouri. However, certain localities in Missouri impose their own income taxes, which effectively raise the combined state and local rate above 4%. Be sure to check whether your city or county adds a local income tax.
The table below shows what you actually keep at five salary levels in Missouri, accounting for federal tax, FICA, and Missouri's flat 4% state tax plus estimated local taxes.
See how Missouri compares to other Midwest states. Each link takes you to the overtime tax calculator landing page for that state.
For a comprehensive breakdown of Missouri’s tax structure, salary comparisons, cost-of-living analysis, and more, visit the full Missouri take-home pay page.