Missouri Income Tax Calculator 2026 โ€” 4.7% + Federal Tax Deduction

Calculate your 2026 Missouri state income tax. Flat 4.7% rate with unique federal tax deduction. See how MO's federal deduction lowers your effective rate.

$
= $6,250 / month
$
Leave $0 to auto-calculate federal tax
Common salaries:
$0
MO State Income Tax
$0
Federal Tax Deduction
$0
Federal Income Tax
0%
MO Effective Rate
$0
Savings from Fed Deduction
$0
After All Taxes

Missouri Tax Computation

How to Use This Missouri Tax Calculator

Enter your annual gross income and filing status. If you know exactly how much federal income tax you paid (from your W-2 box 2, or last year's Form 1040), enter it in the "Federal Income Tax Paid" field โ€” this gets deducted from your Missouri taxable income. Leave it at $0 to have the calculator auto-estimate your federal tax.

The federal tax deduction is Missouri's defining feature. It's not available in most states and can meaningfully reduce your Missouri tax bill.

The Formula

MO Standard Deduction: $14,600 (single) / $29,200 (MFJ)
Federal Tax Paid: enter actual federal taxes paid (deductible in MO)
MO Taxable = Gross Income โˆ’ MO Std Deduction โˆ’ Federal Tax Paid
MO State Tax = max(0, MO Taxable) ร— 4.7%
Savings from Fed Deduction = Federal Tax Paid ร— 4.7%

Example

Lisa, Single, $90,000, 2026, paid $12,500 federal income tax:
MO taxable without fed deduction: $90,000 โˆ’ $14,600 = $75,400
MO tax without deduction: $75,400 ร— 4.7% = $3,544
MO taxable WITH fed deduction: $75,400 โˆ’ $12,500 = $62,900
MO tax WITH deduction: $62,900 ร— 4.7% = $2,956
Savings from federal tax deduction: $588 (= $12,500 ร— 4.7%)

Why Missouri's Federal Tax Deduction Is Unique

Only a handful of states allow a deduction for federal taxes paid โ€” Missouri is one of them. Most states calculate tax on federal AGI (before federal taxes). Missouri goes a step further, allowing you to subtract your actual federal tax liability. Higher federal tax brackets (due to higher income) actually create a larger Missouri deduction, partially offsetting the federal tax increase. This is a significant benefit for higher earners in Missouri.

Extended

Federal Tax Deduction Impact Analysis

See how Missouri's unique federal tax deduction reduces your effective state tax rate

How Missouri's federal tax deduction changes your effective tax rate at different income levels. Compares MO tax with and without the federal deduction.

IncomeFederal TaxMO Tax (no fed ded.)MO Tax (with fed ded.)SavingsMO Effective Rate

Federal tax estimated using 2026 brackets, single filer, no additional deductions. Actual savings depend on your exact federal tax paid.

Frequently Asked Questions

What is Missouri's state income tax rate for 2026?
Missouri has a flat income tax rate of 4.7% for 2026. This was reduced from 4.8% in 2026 as part of Missouri's ongoing tax-cutting legislation. The state's standard deduction matches the federal: $14,600 for single filers and $29,200 for married filing jointly (2026 federal amounts used for MO).
Can I deduct federal taxes paid on my Missouri return?
Yes โ€” and this is one of Missouri's most unique tax provisions. Missouri allows you to deduct the federal income taxes you actually paid from your Missouri adjusted gross income. This is extremely rare among states. For example, if you paid $15,000 in federal income tax, you can subtract that $15,000 from your Missouri taxable income before applying the 4.7% rate. This can significantly reduce your Missouri tax bill.
How does the Missouri federal tax deduction work exactly?
Missouri's federal tax deduction works as follows: Start with your Missouri AGI (essentially federal AGI). Subtract the Missouri standard deduction. Then subtract the federal income taxes you actually paid during the year (not the taxes you owed โ€” the taxes actually paid, which for most W-2 employees matches their withholding plus any payments made). Apply 4.7% to the remaining amount.
What other deductions does Missouri allow?
Missouri also allows a public pension exemption (state/federal pensions up to a certain amount are partially exempt), Social Security exemption for lower-income filers, and the standard Missouri itemized deductions if you itemize on your federal return. The federal tax deduction is the most impactful for most taxpayers.
How does Missouri's 4.7% compare to neighboring states?
Missouri's 4.7% flat rate is competitive but the federal tax deduction makes it effectively much lower. Without the deduction, Missouri at 4.7% compares to Kansas at 5.7%, Arkansas at 4.4% (top rate), Tennessee at 0% (no income tax), Kentucky at 4.0%, and Illinois at 4.95%. With the federal tax deduction, Missouri's effective rate for a median earner can be 2.5%โ€“3.5%, making it very competitive among neighboring states.

Related Tax Calculators

๐Ÿ‡บ๐Ÿ‡ธ
Federal Income Tax Calculator 2026
Calculate your federal income tax with bracket-by-bracket breakdown for all fili...
๐Ÿ“Š
Tax Bracket Calculator 2026
Find your marginal and effective tax rate. See exactly how much tax you pay in e...
๐Ÿงฎ
Income Tax Calculator 2026
Complete income tax calculation with standard and itemized deductions, credits a...
๐Ÿ’‘
Married Filing Jointly Tax Calculator
Calculate taxes for married couples filing jointly. Compare with filing separate...
๐Ÿ‘ค
Head of Household Tax Calculator
Calculate taxes with head of household filing status. Check if you qualify....
๐Ÿ‘ค
Single Filer Tax Calculator
Income tax calculator for single filing status with standard deduction....