The formulas
- Taxable income = income - standard deduction - personal exemptions (when applied), not below zero
- Tax from the 2026 Missouri table: 0% to $1,348, then 2% rising by 0.5 points per $1,348 band, 4.7% over $9,436
- Standard deduction equals the federal amount: $16,100 single or separate, $24,150 head of household, $32,200 joint
- Missouri income tax = tax from the rate schedule
How it works
Tax year: 2026.
Missouri taxes income at 2% to 4.7%. Enter income before state deductions and choose whether to apply the state standard deduction and personal exemptions, or enter taxable income and switch them off. The tool computes state income tax only; credits other than those named are not applied.
Missouri uses one bracket table for all filers. For 2026 the first $1,348 is untaxed, rates step from 2 to 4.5 percent in $1,348 bands, and income over $9,436 is taxed at 4.7 percent. The Missouri standard deduction equals the federal amount for the filing status. Missouri also allows a deduction for part of the federal income tax paid, which ends at higher incomes; it is not applied, so subtract it from the income you enter. From 2025 Missouri subtracts capital gains included in federal AGI, so enter income without them.
Local taxes: Kansas City and St. Louis levy a 1 percent earnings tax on residents and on nonresidents who work in the city. It is not included.
Illustrative figures only. Check the result against your firm's methodology before relying on it.
Common questions
What is the Missouri income tax rate for 2026?
Missouri taxes income at 2% to 4.7% for 2026. Tax from the 2026 Missouri table: 0% to $1,348, then 2% rising by 0.5 points per $1,348 band, 4.7% over $9,436.
What is the Missouri standard deduction?
Single: $16,100; Married filing jointly or surviving spouse: $32,200; Head of household: $24,150; Married filing separately: $16,100 (2026, at low income).
Are there local income taxes in Missouri?
Kansas City and St. Louis levy a 1 percent earnings tax on residents and on nonresidents who work in the city. It is not included.
Sources
- Missouri DOR, 2026 Form MO-1040ES (tax rate chart)
- Missouri DOR, 2026 withholding tax formula (standard deduction)
Runs in your browser. The figures you type are not sent to CORAA or stored. Check the result against your firm's methodology before relying on it.