Wisconsin Self-Employment Tax Guide (2026)

Wisconsin's 3.5%–7.65% brackets and a standard deduction that shrinks as you earn more. What Wisconsin freelancers owe and how to pay it.

By Thomas P. Checked against IRS publications Updated How we check our numbers
Wisconsin freelancer taxes 2026: on $75,000 of profit a single freelancer keeps $56,876 after $15,495 federal tax and $2,629 Wisconsin income tax; 34th lowest state tax of 51.

Quick answer

A single freelancer in Wisconsin with $75,000 of profit pays about $2,629 of Wisconsin income tax in 2026 on top of about $15,495 of federal tax (self-employment tax of 15.3% on 92.35% of profit plus income tax), keeping about $56,876. At $50,000 the state bill is about $1,403; at $100,000, about $4,008.

Wisconsin has four income tax brackets and a standard deduction that shrinks as your income rises, so the state layer climbs steadily as a freelance business grows. Here is what a Wisconsin freelancer owes for 2026.

How Wisconsin compares: in our 50-state take-home pay ranking, a single freelancer with $75,000 of profit keeps $56,876 in Wisconsin after federal and state income tax, 34th of 51 (state income tax: $2,629).

How much to set aside in Wisconsin

Set aside from every payment

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That is $0 of every $1,000 you receive

Federal income tax share
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Self-employment tax share
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State tax share
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Total to save this year
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Estimate for information only — not tax, legal or financial advice. Federal figures for tax year 2026; state and local taxes are not included unless you enter them. Check your situation with a CPA or enrolled agent.

What you pay on freelance profit

Tax Rate
Federal self-employment tax 15.3% on 92.35% of profit (12.4% part capped at $184,500 for 2026)
Federal income tax 10%–37%
Wisconsin income tax 3.5% / 4.4% / 5.3% / 7.65%

Wisconsin’s 2026 brackets

Single taxable income Rate
$0 – $15,110 3.5%
$15,110 – $51,950 4.4%
$51,950 – $332,720 5.3%
Over $332,720 7.65%

Wisconsin starts from your federal adjusted gross income, so Schedule C business expenses and the deduction for half of your self-employment tax reduce Wisconsin income too. The federal standard deduction and the federal QBI deduction do not carry over.

The sliding standard deduction

Wisconsin’s standard deduction is not fixed. For a single filer in 2026 it is $13,960 on income up to $20,120. Above that it drops by 12% of the income over $20,120 and reaches $0 at about $136,453. You also get a $700 personal exemption.

Because the deduction shrinks as you earn more, profit in the 5.3% bracket really costs about 5.9% in Wisconsin tax until the deduction is gone.

Rough example: single freelancer, $85,000 profit. Federal AGI ≈ $78,995. The standard deduction falls to about $6,895 ($13,960 minus 12% of $58,875). After the $700 exemption, Wisconsin taxable income is about $71,400, and tax is roughly $3,180, on top of about $17,800 of federal tax.

Estimated payments

Make Wisconsin estimated payments with Form 1-ES if you expect to owe $500 or more for 2026 after withholding and credits. Due dates match the IRS: April 15, June 15 and September 15, 2026, and January 15, 2027. You generally avoid underpayment interest if you pay the smaller of 90% of this year’s Wisconsin tax or 100% of last year’s. Pay online through My Tax Account or Quick Pay on the Department of Revenue site.

Size your federal payments with the quarterly estimated tax calculator, then add one quarter of your expected Wisconsin tax to each payment date.

If you have an LLC

  • A single-member LLC taxed as a sole proprietor reports its profit on your personal Wisconsin return.
  • Wisconsin LLCs file an annual report with the Department of Financial Institutions. It’s due by the end of the calendar quarter that contains your LLC’s formation anniversary. The fee is $25 online or $40 on paper.
  • Thinking about an S corp election? The payroll-tax savings are federal, and Wisconsin still taxes the profit that passes through to you.

How much to set aside

Enter 5.3 in the state field of the tax set-aside calculator if your profit is above about $52,000. The lower brackets and the standard deduction bring your average Wisconsin rate below that, so the extra covers the shrinking deduction.

Sales tax

Wisconsin’s 5% state sales tax (plus county tax where it applies) covers goods and a list of specific services, such as repair work, landscaping, admissions, parking and photographic services. It also covers some digital products, including finished artwork, digital books and audio or video delivered electronically. Most consulting and professional services aren’t taxed. Freelance photographers, and designers who sell finished art files, may need a seller’s permit.

Frequently asked questions

What is Wisconsin's income tax rate for 2026?

For single filers, 3.5% up to $15,110, 4.4% to $51,950, 5.3% to $332,720 and 7.65% above that. Wisconsin starts from federal AGI, but the federal standard deduction and QBI deduction don't carry over.

What is Wisconsin's standard deduction for freelancers?

For a single filer in 2026, it's $13,960 on income up to $20,120, then drops by 12% of income over $20,120, reaching $0 at about $136,453. Because of this, profit in the 5.3% bracket really costs about 5.9%.

When are Wisconsin estimated tax payments due?

April 15, June 15 and September 15, 2026, and January 15, 2027, using Form 1-ES if you expect to owe $500 or more after withholding and credits. Paying the smaller of 90% of this year's tax or 100% of last year's generally avoids underpayment interest.

Do I have to charge sales tax on services in Wisconsin?

Usually not for consulting and professional services. Wisconsin's 5% state sales tax covers specific services such as repair work, landscaping and photographic services, plus some digital products like finished artwork. Freelance photographers and designers selling finished art files may need a seller's permit.