Missouri charges 4% flat state income tax plus local taxes in some areas. Use the quarterly tax estimator pre-loaded with Missouri rates.
Open Quarterly Tax Estimator →Quarterly estimated payments in Missouri must cover both your federal and state obligations. Missouri applies a flat 4% rate, and most states require their own quarterly payment schedule that may differ from the IRS dates. If your Missouri locality imposes income tax, you may need a third set of quarterly payments. This estimator pre-loads Missouri's tax rates so you can calculate both federal and state quarterly amounts in one place, avoiding underpayment penalties at both levels.
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 quarterly tax estimator 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.