Wisconsin gambling tax calculator
Wisconsin allows no deduction for losses, so a losing year can still produce a state tax bill. If you elect the session method and keep records, losses net against wins within each session only.
Your estimate
Enter your state, winnings, and losses to see an estimate.
Checked against Wisconsin’s own sources on 2026-09-11.
How Wisconsin treats gambling losses
Wisconsin allows no deduction for gambling losses. If you use the session method on your federal return and keep records, you must use it on the Wisconsin return too, and each session nets its own losses against its own wins. A losing session offsets nothing else.
The two examples below are the same numbers the calculator uses, worked at Wisconsin rates.
Two examples, worked at 2026 Wisconsin rates
A single filer with $60,000 of other income who takes the standard deduction on everything except gambling losses.
A losing year
You win $50,000 and lose $52,000, so you finish down $2,000.
- Federal
- $3,596
- Wisconsin
- $2,952
- Total
- $6,548
You finished the year down and still owe tax.
Federally you itemize, so your losses offset your winnings, but the 2026 rule caps that deduction at 90 percent and leaves $3,200 taxable. Wisconsin starts from your federal income and allows no deduction for gambling losses, so the full $50,000 is taxed at 5.3 percent, plus $302 because the win shrinks your standard deduction, which comes to $2,952.
A winning year
You win $50,000 and lose $10,000, so you finish up $40,000.
- Federal
- $10,350
- Wisconsin
- $2,952
- Total
- $13,302
Federally you take the $16,100 standard deduction, which is worth more than itemizing, so your gambling losses do not reduce your federal tax at all. Wisconsin starts from your federal income and allows no deduction for gambling losses, so the full $50,000 is taxed at 5.3 percent, plus $302 because the win shrinks your standard deduction, which comes to $2,952.
The rules behind these numbers
- Sports betting taxes, start to finish
- The 90 percent loss deduction, and where it bites hardest
- What a W-2G tells you, and what it does not
- Where winnings and losses go on your return, and estimated tax
- Per wager or per session, and why it changes your bill
- Filing as a professional, and what it does not fix