Wisconsin Side Hustle Tax Calculator
Calculate your Wisconsin state tax (5.30%), federal tax, and self-employment tax on 1099 income.
Last updated: January 2026 · Data from IRS Rev Proc 2024-40
Wisconsin side hustlers navigate a progressive state income tax system with rates ranging from 3.54% to 7.65%. However, most freelancers earning typical side hustle income will pay around 5.30% on their marginal earnings. The Badger State has a growing gig economy centered around Milwaukee, Madison, and the Green Bay area, with over 500,000 residents earning freelance or self-employment income.
How Side Hustle Taxes Work in Wisconsin
Wisconsin uses a progressive income tax system with four brackets:
**Wisconsin state tax rates (2025):** - 3.54% on income up to $14,320 (single) - 4.55% on $14,321 - $28,640 - 5.30% on $28,641 - $315,310 - 7.65% on income over $315,310
**No local income taxes:** - Milwaukee, Madison, and all Wisconsin cities do not levy local income taxes - You only pay the state progressive rate plus federal taxes
Most side hustlers with W-2 jobs will fall into the 5.30% bracket for their additional freelance income.
What Wisconsin Side Hustlers Owe
Let's say you're a single filer in Milwaukee with a $50,000 W-2 job and $15,000 in side hustle income from freelance marketing, 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) - Wisconsin state tax (5.30%): ~$689 - **Total additional tax: ~$5,388**
Your effective rate on the side hustle is approximately 41%.
Wisconsin Tax Deadlines 2025
Wisconsin estimated tax deadlines: - **Q1**: April 15, 2025 - **Q2**: June 16, 2025 - **Q3**: September 15, 2025 - **Q4**: January 15, 2026
Use Wisconsin Form 1-ES for state estimated tax payments.
Common Deductions for Wisconsin Freelancers
Common deductions for Wisconsin freelancers include: - Home office expenses (regular or simplified method) - Business mileage (67 cents/mile for 2025) - Equipment and software purchases - Professional development and training - Health insurance premiums for self-employed individuals - Wisconsin generally follows federal deduction rules
Wisconsin Side Hustle Tax FAQ
What is Wisconsin's tax rate on side hustle income?
Wisconsin has progressive rates from 3.54% to 7.65%. Most side hustlers with total income between $28,641 and $315,310 pay 5.30% on their marginal freelance earnings.
Does Milwaukee have a city income tax?
No, Milwaukee and all Wisconsin cities do not have local income taxes. You only pay state-level income tax on your side hustle earnings.
How do I report side hustle income in Wisconsin?
Report your side hustle income on federal Schedule C. Wisconsin uses your federal adjusted gross income as the starting point for Form 1.
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This calculator provides estimates only. For personalized advice, consult a qualified tax professional.
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