Wisconsin Quarterly Tax Calculator 2026
Rates reviewed · Wisconsin Department of Revenue
Wisconsin has a top income tax rate of 7.65%. Quarterly estimated payments required if annual liability exceeds $500.
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Tax Information Notice
This content is for informational and educational purposes only. It does not constitute tax, legal, or financial advice. Tax laws change frequently. Always consult a qualified CPA or Enrolled Agent for your specific situation.
Wisconsin quarterly tax questions
How much is the quarterly tax for freelancers in Wisconsin?
Freelancers in Wisconsin pay federal self-employment tax (15.3% of net self-employment income), federal income tax at their bracket, and Wisconsin income tax of up to 7.65%. This calculator applies 7.65% as a representative Wisconsin rate for freelancer-level income; the top marginal rate is 7.65%.
When are quarterly estimated taxes due in Wisconsin for 2026?
Wisconsin follows the federal estimated tax schedule for 2026 — Q1: April 15, 2026, Q2: June 16, 2026, Q3: September 15, 2026, Q4: January 15, 2027. The Q3 payment is due September 15, 2026.
Do I have to make Wisconsin estimated tax payments?
Wisconsin requires estimated payments once you expect to owe $500 or more in state income tax for the year. The state form is Form 1-ES. Payments can be made online through My Tax Account. Filing and paying federal estimated tax does not cover the state amount — they are separate payments.
Where do I pay Wisconsin estimated taxes online?
Wisconsin accepts online estimated tax payments through My Tax Account, run by the Wisconsin Department of Revenue. Federal payments go through IRS Direct Pay or EFTPS separately.
What happens if I underpay estimated taxes in Wisconsin?
The IRS charges an underpayment penalty based on the amount underpaid and the number of days late. Paying at least 90% of this year's tax or 100% of last year's (110% if your AGI exceeded $150,000) meets the federal safe harbour. Wisconsin applies its own interest and penalty on late or short state payments.
State payments are administered by the Wisconsin Department of Revenue via My Tax Account.
Tax Information Notice
This content is for informational and educational purposes only. It does not constitute tax, legal, or financial advice. Tax laws change frequently. Always consult a qualified CPA or Enrolled Agent for your specific situation.