Missouri Tax Brackets help determine how much state income tax residents and other eligible taxpayers owe for the year. For the 2026 tax year, Missouri uses a graduated income tax system with rates from 0% to 4.7%, meaning different portions of taxable income are taxed at different rates instead of applying one percentage to every dollar. Understanding Missouri state income tax rates, 2026income thresholds, standard deductions, and filing rules can help you estimate your tax bill, check paycheck withholding, and prepare for a return filed in 2027. Whether you are a resident, part-year resident, nonresident earning income in Missouri, employee, or self-employed taxpayer, the important starting point is Missouri taxable income, not simply your gross salary. Here is how the current brackets work and what can change your final tax.
Missouri has eight marginal tax levels for 2026. The first $1,348 of Missouri taxable income is taxed at 0%, while income above $9,436 falls into the top 4.7% bracket. Each rate applies only to the portion of income within its range.
| Missouri Taxable Income | Tax Rate |
|---|---|
| $0 to $1,348 | 0% |
| Over $1,348 to $2,696 | 2.0% |
| Over $2,696 to $4,044 | 2.5% |
| Over $4,044 to $5,392 | 3.0% |
| Over $5,392 to $6,740 | 3.5% |
| Over $6,740 to $8,088 | 4.0% |
| Over $8,088 to $9,436 | 4.5% |
| Over $9,436 | 4.7% |
These are marginal brackets, not flat rates. Reaching the 4.7% bracket does not mean all your taxable income is taxed at 4.7%. Only the amount above $9,436 is taxed at the top rate.
How Missouri’s Marginal Tax System Works
A marginal tax system divides taxable income into layers. Each layer has its own rate, and the amounts are added together. This means a small raise does not cause all your income to be taxed at a higher percentage.
For example, assume your Missouri taxable income is $50,000. The first $1,348 is taxed at 0%, and the remaining layers are calculated at rates from 2% through 4.5%. The $40,564 above $9,436 is taxed at 4.7%. Using the state’s tax chart, the estimated tax is about $2,170 before eligible credits or other adjustments. This example assumes $50,000 is already Missouri taxable income, not gross wages.
What Counts as Missouri Taxable Income?
Gross income and Missouri taxable income are not necessarily the same. A return generally starts with federal adjusted gross income, then applies Missouri additions, subtractions, deductions, and other adjustments allowed by state law. The result is used to calculate state income tax.
For 2026 payroll withholding, Missouri’s formula uses annual standard deduction amounts of $16,100 for single employees, married employees filing separately, and married employees whose spouses work; $32,200 when a married employee’s spouse does not work; and $24,150 for head-of-household employees. Your final return can depend on your filing circumstances and eligible deductions, so check the current state instructions before filing.
Who Needs to Pay Missouri Income Tax?
Missouri residents generally calculate tax on their taxable income. Nonresidents may owe tax on income sourced to Missouri, while part-year residents may need to report income connected to the period they lived in the state. If you live elsewhere but work in Missouri, or live in Missouri and earn income in another state, special rules and forms may apply.
Residents who paid income tax to another state may qualify for a credit. Nonresidents can generally use the Missouri income percentage calculation to determine the portion of tax connected to Missouri-source income. The correct approach depends on residency, where income was earned, and the type of income involved.
Missouri Income Tax Changes to Know
Missouri’s top individual income tax rate for 2026 remains 4.7%. Bracket thresholds are adjusted for inflation, which is why the 2026 figures are higher than the 2025 thresholds. For comparison, the 2025 chart began its 2% bracket above $1,313 and applied the top 4.7% rate to income over $9,191. Always use the chart for the tax year you are reporting, not simply the year you file.
Another change affects capital gains. Missouri allows individuals to subtract 100% of capital gains reported for federal tax purposes when determining Missouri adjusted gross income, subject to state rules. This may matter if you sold investments or other capital assets during the year.
Local Taxes and Other Costs
State income tax may not be the only income-based tax to consider. Kansas City and the City of St. Louis each impose a 1% earnings tax on residents and on nonresidents who work within the relevant city limits. These local taxes are separate from Missouri state income tax and may apply even when your state bracket stays the same. Check city rules if you live or work in either location.
How to Estimate Your Missouri Tax Bill
Start with expected federal adjusted gross income, then account for Missouri additions, subtractions, and deductions to estimate state taxable income. Apply the 2026 bracket rates progressively, adding the tax due from each layer. Then subtract eligible credits and compare the result with state withholding or estimated payments already made.
Employees can review pay statements and Form W-2 to see how much Missouri tax has been withheld. Self-employed taxpayers and people with income not subject to withholding may need estimated payments. The Missouri Department of Revenue provides an individual income tax calculator and official forms to help check the figures.
Frequently Asked Questions
1. What Is the Highest Missouri Income Tax Rate in 2026?
The highest individual income tax rate is 4.7%, applied to taxable income above $9,436.
2. Does Missouri Have a 0% Income Tax Bracket?
Yes. The first $1,348 of Missouri taxable income is taxed at 0%.
3. Are Missouri Tax Brackets Different for Married Couples?
The state uses the same marginal rate schedule, but filing circumstances and deductions can affect the final tax calculation.
4. When Are 2026 Missouri Income Taxes Filed?
The 2026 tax return is generally filed in 2027. Check the Missouri Department of Revenue for the applicable filing deadline.