2026 Wisconsin State Income Tax Brackets — Married Filing Jointly
Complete bracket schedule, deductions, the unique Married Couple Credit, and federal interaction. Tax year 2026.
Updated May 2026 · Sources: Wisconsin Department of Revenue 2026 Form 1-ES Instructions, IRS Rev. Proc. 2025-32
Wisconsin 2026 brackets — Married Filing Jointly
| Marginal rate | Income range | Tax on max |
|---|---|---|
| 3.50% | $0 – $20,150 | $705 |
| 4.40% | $20,150 – $69,260 | $2,866 |
| 5.30% | $69,260 – $443,630 | $22,708 |
| 7.65% | $443,630 – ∞ | continues at 7.65% |
Federal + Wisconsin combined burden (MFJ examples)
| Income | Federal MFJ | WI taxable | WI MFJ | Combined | Effective |
|---|---|---|---|---|---|
| $60,000 | $2,840 | $40,283 | $1,591 | $4,431 | 7.4% |
| $100,000 | $7,640 | $88,194 | $3,870 | $11,509 | 11.5% |
| $150,000 | $15,340 | $148,083 | $7,044 | $22,383 | 14.9% |
| $200,000 | $26,340 | $200,000 | $9,795 | $36,135 | 18.1% |
| $300,000 | $49,467 | $300,000 | $15,095 | $64,563 | 21.5% |
| $500,000 | $102,607 | $500,000 | $27,020 | $129,627 | 25.9% |
Approximations: federal MFJ standard deduction applied; Wisconsin standard deduction phaseout applied; credits are not included. Use the Wisconsin tax calculator for exact estimates including Married Couple Credit, school property tax credit, and other state-specific items.
Key Wisconsin-specific rules for MFJ
- Standard deduction phases out at higher income — maximum $25,840 through $29,039 of Wisconsin income and $0 at $159,690.
- Married Couple Credit offsets some marriage penalty (up to $480 credit).
- Social Security is not taxed by Wisconsin, but other retirement income may depend on current schedules.
- 529 contribution deduction — up to $4,440 per beneficiary, per spouse on MFJ.
- School Property Tax Credit — 12% of property tax up to $300.
Frequently asked questions
What are the 2026 Wisconsin income tax brackets for married filing jointly?▼
Wisconsin has 4 married filing jointly brackets for 2026: 3.50% on taxable income up to $20,150; 4.40% from $20,150 to $69,260; 5.30% from $69,260 to $443,630; and 7.65% above $443,630. These are Wisconsin taxable-income brackets; federal tax is separate.
What is Wisconsin's MFJ standard deduction for 2026?▼
Wisconsin's 2026 married filing jointly standard deduction starts at $25,840 for Wisconsin income up to $29,039, then phases down by 19.778% of income over $29,040. It reaches $0 at $159,690 of Wisconsin income.
How does Wisconsin compare to neighboring states?▼
Wisconsin top rate (7.65%) is above Illinois (4.95% flat), Iowa (flat 3.8% for 2026), Indiana (flat), and Michigan (flat), but below Minnesota top brackets. Wisconsin also has a high property-tax burden, so income tax is only part of the comparison.
Does Wisconsin tax retirement income?▼
Wisconsin does not tax Social Security benefits. Other retirement income can be taxable or partly excluded depending on current Wisconsin rules, age, income, military/public retirement status, and the type of distribution. Roth IRA distributions are tax-free if qualified.
What deductions and credits are available for MFJ filers in Wisconsin?▼
Key Wisconsin credits/deductions: Earned Income Credit (4-34% of federal, refundable), School Property Tax Credit (12% of property tax up to $300), Married Couple Credit (3% of lesser earner up to $480), Veterans and Surviving Spouses Property Tax Credit, Low-Income Education Credit, Tuition and Fee Expense subtraction (up to $6,973), and 529 College Savings Contribution Deduction (up to $4,440 per beneficiary).
What is the Wisconsin Married Couple Credit?▼
The Married Couple Credit is unique to Wisconsin — it offsets the 'marriage penalty' for two-earner couples. The credit equals 3% of the lower-earning spouse's qualifying income (capped at $480). For example, if both spouses earn $50k+, the credit is the maximum $480. If the lower earner makes $10k, credit is $300. This partially compensates for higher MFJ brackets pushing dual-income earners into higher rates.
When is the 2026 Wisconsin tax filing deadline?▼
Tax year 2026 returns are due April 15, 2027 (matching federal). Wisconsin grants automatic extension to October 15, 2027 if you file federal Form 4868 and check the Wisconsin extension box on Form 1. Tax owed must still be paid by April 15 to avoid interest. Wisconsin DOR runs an Electronic Filing system with refund within 4-12 days for direct deposit.