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Missouri Income Tax Calculator 2026 — Estimate Your MO Tax

October 25, 2026 · 3 min read · By the DollarWise team

Estimate what you owe Missouri for tax year 2026. Missouri still uses a graduated schedule in 2026 — not a flat tax: the first $1,348 of taxable income is taxed at 0%, then rates step up through 2%, 2.5%, 3%, 3.5%, 4%, and 4.5%, topping out at 4.7% above $9,436. Because the brackets are narrow, most earners pay close to 4.7% on nearly everything above the standard deduction. Enter your income and filing status and the calculator shows your estimated tax, effective rate, marginal rate, and the bracket table used. This is a planning estimate: it omits Missouri’s federal-income-tax deduction (which can lower the bill), credits, local earnings taxes, and the capital-gains subtraction, so it may read slightly higher than a filed return.

Missouri Income Tax Calculator 2026

Official 2026 MO brackets to 4.7% — your estimated state tax in seconds.

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1 Enter your income

Use federal adjusted gross income if you have it; otherwise gross wages are a fair estimate.
Missouri applies the same bracket schedule to every status; on a combined return each spouse's share is taxed separately — this calculator taxes household income on one schedule as a simplification.

2 Settings & quick examples

Missouri follows the federal standard deduction: Single/MFS $16,100; MFJ $32,200; Head of household $24,150 (2026).
Note: this estimate omits Missouri's federal-income-tax deduction, so it may read slightly higher than a filed return.

3 Calculate your Missouri tax

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✅ Your 2026 Missouri estimate

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Run unlimited estimates — the math happens entirely in your browser.

How it works

Enter your annual income and filing status. The calculator subtracts the standard deduction for your status, then taxes the remainder bracket by bracket — only the slice inside each bracket pays that bracket’s rate, and everything above $9,436 pays 4.7%. Because the brackets are only $1,348 wide, a typical earner lands in the top bracket quickly, so Missouri behaves almost like a flat 4.7% tax on income above the deduction. The bracket table used is printed in the results, with its source.

2026 Missouri brackets used (all statuses): 0% to $1,348; 2.0% to $2,696; 2.5% to $4,044; 3.0% to $5,392; 3.5% to $6,740; 4.0% to $8,088; 4.5% to $9,436; 4.7% above. Cumulative tax at the top of each band: $0, $27, $61, $101, $148, $202, $263. Standard deductions: Single/MFS $16,100; MFJ $32,200; Head of household $24,150. Source: Missouri Department of Revenue, 2026 Withholding Tax Formula.

Everyday uses

  • Paycheck planning — see what Missouri keeps from a raise or a new job.
  • Estimate payments — check whether withholding covers the year’s bill.
  • City-tax reminder — Kansas City and St. Louis add a 1% earnings tax on top.
  • Move planning — compare Missouri’s near-flat 4.7% with another state’s schedule.
  • Budgeting — turn a gross salary into a realistic take-home figure.