Wisconsin 1099 taxes: a 2026 guide for the self-employed
Keeper StaffKeeper is a delightfully smart tax filing software that's especially useful for people with 1099 contracting and freelance income. Our blog breaks down IRS guidance with real-world examples and analysis by tax professionals — empowering taxpayers to save money and take control of their finances.
Krislyn ChanKrislyn is Chief Growth Officer at Keeper. At Keeper, she strives to make expert-level tax strategies that used to require a traditional CPA accessible to all. Prior to Keeper, she was at Curology, where she helped bring custom, prescription-grade skincare out of the dermatologist's office to millions of faces.
Key takeaways
- 1099 income in Wisconsin is subject to three taxes: 15.3% federal self-employment tax, 10% to 37% federal income tax, and 3.5% to 7.65% Wisconsin income tax.
- Set aside 25–30% of your profit in a high-yield savings account, so the money earns interest until your tax payments are due. For a single filer with no other income, total tax runs from 20.9% of profit at $40,000 to 31.3% at $200,000.
- Wisconsin’s standard deduction shrinks as you earn more. It starts at $13,960 ($25,840 married filing jointly) and phases out completely at $136,453 of income ($159,690 married filing jointly).
- Wisconsin estimated payments start at $500. If you expect to owe $500 or more, make quarterly estimated tax payments, due April 15, June 15, and September 15, 2026, and January 15, 2027.
- No local income tax. Milwaukee, Madison, and other Wisconsin cities don’t tax income.
How much tax do 1099 workers pay in Wisconsin?
These tables show estimated 2026 tax on self-employment profit, the amount left after business expenses. They assume this is your only income, you take the standard deduction, and you have no kids or tax credits.
Single filer, 2026
| 1099 profit | Total tax | % of profit | Self-employment tax | Federal income tax | Wisconsin income tax |
|---|---|---|---|---|---|
| $40,000 | $8,372 | 20.9% | $5,652 | $1,775 | $945 |
| $60,000 | $13,898 | 23.2% | $8,478 | $3,559 | $1,861 |
| $80,000 | $19,552 | 24.4% | $11,304 | $5,344 | $2,905 |
| $100,000 | $26,373 | 26.4% | $14,130 | $8,235 | $4,008 |
| $150,000 | $44,355 | 29.6% | $21,194 | $16,413 | $6,748 |
| $200,000 | $62,642 | 31.3% | $28,234 | $25,196 | $9,211 |
Married filing jointly, one self-employed spouse, 2026
| 1099 profit | Total tax | % of profit | Self-employment tax | Federal income tax | Wisconsin income tax |
|---|---|---|---|---|---|
| $40,000 | $6,454 | 16.1% | $5,652 | $398 | $404 |
| $60,000 | $11,669 | 19.4% | $8,478 | $1,885 | $1,306 |
| $80,000 | $17,140 | 21.4% | $11,304 | $3,550 | $2,286 |
| $100,000 | $22,811 | 22.8% | $14,130 | $5,335 | $3,347 |
| $150,000 | $37,287 | 24.9% | $21,194 | $9,795 | $6,297 |
| $200,000 | $53,679 | 26.8% | $28,234 | $16,472 | $8,973 |
How Wisconsin taxes 1099 income
If you’re a freelancer, independent contractor, gig worker, or solo business owner in Wisconsin, your net profit (1099 income minus business expenses) is taxed three ways:
- Federal self-employment tax: 15.3% on most of your profit (92.35% of it). That’s 12.4% for Social Security, on earnings up to $184,500 in 2026, plus 2.9% for Medicare with no cap. It replaces the payroll taxes an employer would split with you. Estimate it with the self-employment tax calculator.
- Federal income tax: 10% to 37% on what’s left after three deductions: the $16,100 standard deduction ($32,200 married filing jointly), half of your self-employment tax, and the 20% QBI deduction.
- Wisconsin income tax: 3.5% to 7.65% on your profit minus half of your self-employment tax, the Wisconsin standard deduction, and a $700 exemption for each person on your return. You report it on Form 1.
What’s different about Wisconsin
- The standard deduction phases out. For single filers, it’s $13,960 up to $20,119 of income, then drops by 12 cents for every dollar above that. At $80,000 of profit, you’d get $7,452. Married couples filing jointly start at $25,840, which drops by about 20 cents per dollar over $29,039.
- Most self-employed people pay 5.3% on their top dollars. The 5.3% rate starts at $51,950 of taxable income ($69,260 married filing jointly), and 7.65% starts at $332,720 ($443,630).
- No QBI deduction. The IRS lets you deduct up to 20% of your business profit. Wisconsin doesn’t. At $80,000 of profit, that’s $11,650 you deduct on your federal return but still pay Wisconsin tax on.
- Some federal deductions carry over. Because Wisconsin starts with the income on your federal return, three deductions you take there also lower your Wisconsin tax: half of your self-employment tax, self-employed health insurance premiums, and self-employed 401(k) contributions.
A self-employed person in Wisconsin at $80,000 pays $19,552: about $292 more than in California and $2,905 more than in Texas, which has no income tax.
Wisconsin income tax rates for 2026
Wisconsin adjusts its income ranges for inflation each year.
| Rate | Single | Married filing jointly |
|---|---|---|
| 3.5% | $0 – $15,110 | $0 – $20,150 |
| 4.4% | $15,110 – $51,950 | $20,150 – $69,260 |
| 5.3% | $51,950 – $332,720 | $69,260 – $443,630 |
| 7.65% | Over $332,720 | Over $443,630 |
Example: Wisconsin tax on $80,000 of 1099 income
Here’s the math for a single self-employed person in Milwaukee with $80,000 of profit and no other income.
| Step | Amount |
|---|---|
| Self-employment tax: $80,000 × 92.35% × 15.3% | $11,304 |
| $80,000 minus half of self-employment tax | $74,348 |
| Income the IRS taxes: $74,348 minus the $16,100 standard deduction and $11,650 QBI deduction | $46,599 |
| Federal income tax | $5,344 |
| Income Wisconsin taxes: $74,348 minus a $7,452 standard deduction and the $700 exemption | $66,196 |
| Wisconsin income tax | $2,905 |
| Total 2026 tax | $19,552 (24.4%) |
Self-employment tax is the biggest piece. Every dollar you write off as a business expense lowers all three taxes, since your self-employment tax, federal income tax, and Wisconsin income tax are all based on your profit after expenses.
What tax write-offs can I claim?
How to lower your Wisconsin 1099 tax bill
At $80,000 of profit, every $1,000 of business expenses you deduct cuts about $286 from your total tax. Common write-offs for self-employed people in Wisconsin include:
- Your phone and internet, for the share you use for work
- Car expenses, using a set rate per mile or your actual costs (compare the two)
- A home office, if you use part of your home regularly and only for work (estimate yours)
- Software, equipment, and supplies you buy for your business
- Health insurance premiums you pay as a self-employed person
- Retirement contributions to a SEP-IRA or Solo 401(k)
Most of these are small purchases spread across a year of bank and card statements, which is where they get missed. See the full list of tax write-offs for self-employed people.
Track and claim every eligible deduction with Keeper
Keeper scans your accounts for write-offs and files your return — with tax pros reviewing every one.
Try it freeWisconsin estimated tax payments
If you expect to owe $500 or more in Wisconsin tax for 2026 after withholding and credits, make estimated payments to the Wisconsin Department of Revenue online through My Tax Account or with Form 1-ES. They’re due on the same dates as your federal payments, and each is a quarter of your Wisconsin tax:
| Payment | Share of your Wisconsin tax | Due date |
|---|---|---|
| 1st | 25% | April 15, 2026 |
| 2nd | 25% | June 15, 2026 |
| 3rd | 25% | September 15, 2026 |
| 4th | 25% | January 15, 2027 |
- Federal payments are separate: you pay the IRS on the same four dates with Form 1040-ES.
- To avoid interest for paying too little, pay at least 90% of this year’s Wisconsin tax or 100% of last year’s, whichever is less, in on-time payments. Unlike the IRS, Wisconsin doesn’t raise the prior-year amount to 110% for higher earners. You figure any interest on Schedule U.
Get your payment amounts with the Wisconsin quarterly tax calculator.
Should you form an LLC or S corp in Wisconsin?
You don’t need one to work as an independent contractor. If you work for yourself without forming a business, you report 1099 income on Schedule C, part of your regular tax return, and pay the taxes above.
- LLCs cost $130 to form online ($170 on paper) and $25 a year for the annual report.
- S corps can make sense once your profit is around $80,000, when the self-employment tax savings get significant. You pay yourself a reasonable salary and take the rest as profit payouts (distributions) that aren’t subject to self-employment tax.
Run the numbers for your income to see what you’d save.
Do self-employed people in Wisconsin charge sales tax?
Usually not. Most professional services, like writing, design, consulting, and bookkeeping, aren’t taxable in Wisconsin. Physical goods and certain digital goods are, at a 5% state rate plus 0.5% in most counties. In the city of Milwaukee, the total is 7.9%.
7 sources
- 2026 Form W-234: tax rate schedules and standard deduction table · revenue.wi.gov
- 2026 Form 1-ES instructions · revenue.wi.gov
- Estimated tax payments (Wisconsin DOR) · revenue.wi.gov
- County and city sales and use taxes · revenue.wi.gov
- LLC filings and fees (Wisconsin DFI) · wdfi.org
- IRS releases tax inflation adjustments for tax year 2026 · irs.gov
- Contribution and benefit base · ssa.gov
This article is for informational purposes only and isn’t tax, legal, or financial advice. Tax rules change and depend on your situation, so talk to a tax professional about yours.
