Missouri Paycheck Calculator 2026
State
Missouri (MO)
Tax Type
Flat Rate Tax
State Tax Rate
Flat 4.80%
Missouri State Income Tax Overview
Missouri imposes a flat state income tax rate of 4.80% on all taxable income. This means every dollar of your taxable income is taxed at the same rate, regardless of how much you earn.
How Missouri Taxes Work in 2026
Missouri levies a flat state income tax rate of 4.80% on all taxable income. A flat tax means every taxpayer pays the same percentage, regardless of income level, which simplifies tax filing. Missouri offers a standard deduction of $13,850 for single filers and $27,700 for married filing jointly. This deduction reduces your taxable income before the 4.80% rate is applied. In addition to the 4.80% state income tax, Missouri residents also pay federal income tax (10% to 37% based on income) and FICA taxes (6.2% Social Security + 1.45% Medicare).
Missouri Flat Tax Rate
Missouri applies a flat income tax rate of 4.80% on all taxable income, regardless of filing status or income level.
Standard deduction: $13,850 (single) / $27,700 (married filing jointly)