Missouri Paycheck Calculator
Missouri Pay Breakdown
Missouri's Tax Picture Is More Layered Than It Looks
Missouri's top state income tax rate of 4.95% sits in the middle of the national range — not as steep as California or Minnesota, but not close to zero like Tennessee or Nevada. What many Missouri workers miss is that Kansas City and St. Louis both levy a 1% city earnings tax on residents, adding another layer that most states don't have. If you work and live in one of those cities, your effective state-plus-local tax rate can approach 6%, which starts to feel like a meaningful bite. This calculator covers all three layers: federal, Missouri state, and the city earnings tax if it applies to you.
How Missouri's Income Tax Works
Missouri uses a graduated income tax with nine brackets ranging from 1.5% to 4.95%. The top 4.95% rate kicks in at taxable income above $8,968. Missouri allows a deduction for federal income taxes paid — meaning your Missouri taxable income is reduced by the amount you paid in federal tax. This calculator uses Missouri's standard deduction approximation for simplicity. For precise withholding, the Missouri Department of Revenue withholding page has the official tables and Form MO-W-4 guidance.
One important thing: Missouri has been gradually reducing its top income tax rate in recent years. The 4.95% rate reflects the current level but is subject to legislative change. Check Missouri DOR for any updates before making long-term financial plans based on a specific rate.
The Kansas City and St. Louis Earnings Tax
Both Kansas City and St. Louis charge a 1% earnings tax on all wages earned within city limits. If you live in Kansas City, you pay it as a resident tax on all income. If you live outside the city but work there, you still owe the earnings tax on wages earned inside city limits. Non-residents who work in Kansas City can credit that 1% against their home city's taxes in some cases. It's a real cost that many suburban workers who commute into these cities overlook when calculating take-home pay.
The Missouri Paycheck Formula With an Example
Net Pay = Gross - Pre-Tax Deductions - Federal Tax - Social Security - Medicare - MO State Tax - City Tax (if applicable)
A Kansas City marketing manager earns $3,800 bi-weekly, files single, and contributes $380 to a 401(k). They live and work in Kansas City.
- Gross: $3,800. Annual: $98,800
- Pre-tax 401(k): $380. Annual taxable: $89,960
- Federal taxable: $89,960 minus $14,600 = $75,360. Federal tax: approx $11,558 annually, or $445 per period.
- Social Security: $3,800 x 6.2% = $235.60
- Medicare: $3,800 x 1.45% = $55.10
- Missouri deducts federal taxes paid: MO taxable = $89,960 minus ~$11,558 federal tax = ~$78,402. MO tax on $78,402 (minus $12,950 MO standard = $65,452): approx $2,930 annually, or $113 per period.
- Kansas City earnings tax: $3,800 x 1% = $38
- Net pay: $3,800 - $380 - $445 - $235.60 - $55.10 - $113 - $38 = $2,533.30
That 33.3% total reduction includes the Kansas City city tax. Without it — say, working in suburban Overland Park just across the state line in Kansas — this same worker would take home $38 more per period. Over a year, that's nearly $1,000 in difference from one county over.
Missouri's Federal Tax Deduction — A Unique Feature
Missouri is one of a small number of states that allows you to deduct federal income taxes paid when calculating state taxable income. This creates an automatic offset: the higher your federal tax bill, the lower your Missouri taxable income. At practical income levels, this offsets roughly 25–35% of your state tax bill compared to what you'd pay without the deduction. It's built into how this calculator estimates Missouri tax. Our 1099 vs W-2 calculator is also helpful if you're weighing contract work, since self-employment tax interacts with Missouri's federal deduction in an interesting way.
Common Missouri Paycheck Pitfalls
- Not accounting for the city earnings tax when budgeting. If you live in Kansas City or St. Louis, that 1% applies from your first dollar of wages. It's withheld by employers, but if you start a new job in the city, confirm your employer is actually withholding it.
- Overlooking the federal tax deduction when estimating Missouri tax. Many people look up Missouri's 4.95% top rate and apply it to their gross. But Missouri's federal tax deduction meaningfully lowers the base. The effective Missouri rate ends up several points lower for most earners.
- Forgetting to file Form MO-W-4. Missouri uses its own withholding certificate. If you only submit a federal W-4, your employer may use a default Missouri withholding method that doesn't reflect your actual exemptions. File both forms at each new job.
The IRS withholding estimator helps confirm your federal side is set correctly, so you can focus your review on getting the Missouri and city tax withholding right.
FAQs
What is Missouri's state income tax rate?
Missouri has nine tax brackets ranging from 1.5% to a top rate of 4.95%. The top rate applies to taxable income above $8,968. Missouri's rate has been gradually reduced in recent years, so verify the current rate at the Missouri Department of Revenue before making detailed projections.
Does Missouri allow a deduction for federal taxes paid?
Yes. Missouri allows residents to deduct the federal income taxes they paid from their Missouri taxable income. This is a significant benefit that effectively reduces Missouri's income tax impact. It means your Missouri tax base is lower than your federal taxable income by the amount of federal tax you actually paid.
What is the Kansas City earnings tax?
Kansas City levies a 1% earnings tax on all wages earned within city limits. Residents pay it on all income regardless of where it's earned. Non-residents pay it only on wages earned for work physically performed inside Kansas City. Employers within Kansas City withhold it automatically.
Does St. Louis also have a city earnings tax?
Yes. The City of St. Louis — which is legally separate from St. Louis County — charges a 1% earnings tax on wages earned there. St. Louis County municipalities do not levy this tax. If you work in Clayton, Kirkwood, or other county municipalities rather than the city itself, the earnings tax doesn't apply.
Does Missouri tax Social Security income?
Missouri exempts Social Security income for taxpayers below a certain income threshold. The exemption phases out at higher income levels. Lower-income retirees in Missouri may owe no state tax on Social Security, while higher earners may owe Missouri tax on a portion of their benefits.
Is there a Missouri standard deduction?
Missouri offers a standard deduction that conforms closely to the federal standard deduction, though the exact amounts can vary. Missouri also allows itemized deductions for taxpayers who itemize at the federal level. The federal tax deduction — an entirely separate benefit — is available regardless of whether you take the standard or itemized deduction.
What is Missouri's Form MO-W-4?
Form MO-W-4 is Missouri's state employee withholding certificate, separate from the federal W-4. Employees complete it to tell their employer how much Missouri state income tax to withhold. Without a completed MO-W-4, your employer uses a default withholding method that may not match your actual tax liability.
Can I get a refund of Kansas City earnings tax if I moved out of the city mid-year?
If your employer withheld Kansas City earnings tax for a period when you were no longer a resident or no longer working within city limits, you may be able to file for a refund through the Kansas City Revenue Division. The rules depend on your specific circumstances — residency status, where the work was physically performed, and whether a tax credit applies in your new jurisdiction.