Wisconsin

State Income Tax

3.5–7.65%

Rate Range

Exempt

Social Security

2026-04-15

Filing Deadline

4 brackets

Structure

Full Tax Details

Has Income TaxYes

Tax Structure4 Brackets

Rate3.5–7.65%

Single Standard Deduction$9,930

Married Standard Deduction$17,880

Single Personal Exemption$1,200

Married Personal Exemption$2,400

Taxes Social SecurityExempt

Taxes Retirement IncomeYes

Filing Deadline2026-04-15

Retirement Income Details

Social Security exempt; up to $5,000 exclusion for some retirement income if 65+.

Official Payment Portal

Wisconsin Department of Revenue

Last verified: 2026-03-31 · Always consult a tax professional before making financial decisions.