Wisconsin Income Tax Calculator (2026)
Estimate your 2026 Wisconsin income tax — 3.5% to 7.65% brackets, the sliding-scale standard deduction, $700 exemptions, and the Married Couple Credit. No sign-up, no cost.
Estimate Your Wisconsin Tax
Each dependent exemption is $700. You get $700 for yourself, plus $700 for your spouse on a joint return.
The Married Couple Credit is 3% of the smaller spouse’s earned income, capped at $480. Leave blank if it does not apply.
Take-home here is after Wisconsin state tax only. Federal income tax and FICA (Social Security and Medicare) are separate — use our paycheck calculator for your full take-home pay. Estimates only — your actual return may differ.
How Wisconsin Income Tax Works
Wisconsin’s system has a quirk most states lack: the standard deduction shrinks as your income grows. That means a raise can increase your taxable income by more than the raise itself — your tax can rise by more than the bracket rate on each extra dollar. Add joint brackets that are only about a third wider than single brackets, and Wisconsin produces a genuine marriage penalty that only the Married Couple Credit partly offsets.
- Brackets: 3.50% to 7.65%. Four brackets. The 4.40% bracket was expanded for 2025, so more income stays at 4.40% before the 5.30% rate applies. The top 7.65% rate starts at $332,720 single ($443,630 joint) for 2026.
- Sliding-scale standard deduction. Single filers start at $13,960 and lose 12 cents of deduction per extra dollar above $20,120, reaching $0 above $136,453. Joint filers start at $25,840 and lose 19.778 cents per dollar above $29,040, reaching $0 above $159,690.
- Exemptions: $700 each. For yourself, your spouse on a joint return, and each dependent — subtracted from income, not from tax.
- Married Couple Credit: up to $480. For joint filers where both spouses have earned income: 3% of the smaller spouse’s earned income, capped at a $16,000 calculation amount. It softens but does not erase the marriage penalty.
- No itemized deductions — but a 5% credit. Wisconsin does not subtract itemized deductions; instead it offers a nonrefundable credit equal to 5% of eligible expenses above the standard deduction (not modeled here).
- Reciprocity. Wisconsin has wage reciprocity with Illinois, Indiana, Kentucky, and Michigan — but not with Minnesota or Iowa.
WI tax = brackets on taxable income (3.50% to 7.65%) − Married Couple Credit (max $480)
Wisconsin Brackets for 2026
| Rate | Single / head of household | Joint | Separate |
|---|---|---|---|
| 3.50% | $0 – $15,110 | $0 – $20,150 | $0 – $10,080 |
| 4.40% | $15,111 – $51,950 | $20,151 – $69,260 | $10,081 – $34,630 |
| 5.30% | $51,951 – $332,720 | $69,261 – $443,630 | $34,631 – $221,820 |
| 7.65% | Over $332,720 | Over $443,630 | Over $221,820 |
Worked Example: Single, $75,000
Take a single filer earning $75,000 with no dependents:
| Calculation | Amount | |
|---|---|---|
| Standard deduction | $13,960 − 12% × ($75,000 − $20,120) | $7,374 |
| Personal exemption | 1 × $700 | $700 |
| Wisconsin taxable income | $75,000 − $7,374 − $700 | $66,926 |
| Tax at 3.50% and 4.40% | $15,110 × 3.50% + $36,840 × 4.40% | $2,149.81 |
| Tax at 5.30% | ($66,926 − $51,950) × 5.30% | $793.73 |
| Total Wisconsin tax | $2,149.81 + $793.73 | $2,943.54 |
| Effective rate | $2,943.54 ÷ $75,000 | 3.92% |
Note how the sliding deduction works against the filer: at $75,000 the deduction has already shrunk from $13,960 to $7,374. A married couple at $150,000 combined keeps only $1,917 — which is a big part of why the joint bill ($6,489.51 after the $480 credit) exceeds two single bills ($5,887.08 combined).
Frequently Asked Questions
