Missouri Side Hustle Tax Calculator
Calculate your Missouri state tax (4.70%), federal tax, and self-employment tax on 1099 income.
Last updated: January 2026 · Data from IRS Rev Proc 2024-40
Missouri offers side hustlers a moderately competitive tax environment with progressive state income tax rates topping out at 4.70% for 2025. The Show-Me State has no local income taxes in most areas, though Kansas City and St. Louis have 1% earnings taxes.
How Side Hustle Taxes Work in Missouri
Missouri uses a progressive income tax system:
**Missouri state tax rates (2025):** - 0% on income up to $1,273 - Graduated rates up to 4.70% on income over $8,911
**Local earnings taxes:** - Kansas City: 1% earnings tax - St. Louis City: 1% earnings tax - Most other cities: No local income tax
Missouri has been reducing rates annually and may continue to do so.
What Missouri Side Hustlers Owe
Let's say you're a single filer in Kansas City with a $52,000 W-2 job and $15,000 in side hustle income from freelance writing, with $2,000 in business expenses.
**Your estimated taxes on the side hustle:** - Net self-employment income: $13,000 - Federal SE tax (15.3% of 92.35%): ~$1,839 - Federal income tax on side income: ~$2,860 (22% bracket) - Missouri state tax (4.70%): ~$611 - Kansas City earnings tax (1%): ~$130 - **Total additional tax: ~$5,440**
Missouri Tax Deadlines 2025
Missouri estimated tax deadlines: - **Q1**: April 15, 2025 - **Q2**: June 17, 2025 - **Q3**: September 15, 2025 - **Q4**: January 15, 2026
Use Form MO-1040ES for Missouri estimated tax payments.
Common Deductions for Missouri Freelancers
Missouri deductions for freelancers: - Missouri uses federal AGI as the starting point - All Schedule C business expenses flow through - Home office deduction - Vehicle expenses (67 cents/mile for 2025) - Missouri allows a deduction for 50% of federal self-employment tax paid
Missouri Side Hustle Tax FAQ
What is Missouri's top tax rate?
Missouri's top income tax rate is 4.70% for 2025, applying to income over $8,911. Kansas City and St. Louis add a 1% earnings tax.
Do I pay Kansas City earnings tax on my side hustle?
Yes, if you live or work in Kansas City, you owe a 1% earnings tax on net self-employment income in addition to Missouri state tax.
Is Missouri reducing its income tax rates?
Yes, Missouri has been phasing in tax rate reductions. The top rate dropped to 4.70% for 2025 from 4.80% in 2024.
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