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Missouri
Corporate Income Tax Rate at a Glance
Missouri's top corporate income tax rate is 4%, applied as a flat rate. This places Missouri in the "Low (under 5%)" tier among U.S. states.
Rate Structure (Flat vs. Graduated)
4.0% flat corporate income tax rate (reduced from 6.25% effective tax year 2020).
S-Corp & Pass-Through Treatment
Missouri recognizes federal S-corp election. Pass-through entities may elect to pay tax at the entity level under Missouri's SALT Parity Act (HB 2400, 2022) at 4.7% (highest individual rate as adjusted).
Official State Revenue Department
For current corporate tax rules in Missouri, consult the state's official source at https://dor.mo.gov/taxation/business/tax-types/corporation-income/. Rates and rules change annually — verify with a qualified tax professional before taking any action.
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Moving to Missouri from elsewhere · Corporate Tax
Corporate income tax rates change frequently as states enact reform packages and phase-down schedules. Always verify current rates with the state's department of revenue and your tax advisor before making business decisions. This information is for educational purposes only and is not tax or legal advice.