Wisconsin Income Tax (2026)

Info: Graduated; top rate 7.65% (brackets 3.50% / 4.40% / 5.30% / 7.65%).

InfoVerified May 31, 2026

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Official source: revenue.wi.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

Income Tax in states bordering Wisconsin

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

IllinoisInfo
Flat 4.95% individual income tax.
Verified May 31, 2026 · Source: tax.illinois.gov · Full Illinois rule →
IowaInfo
Flat 3.8% for 2026 (single rate on all taxable income).
Verified Aug 2, 2026 · Source: revenue.iowa.gov · Full Iowa rule →
MichiganInfo
Flat 4.25% (rate confirmed unchanged for 2026; no statutory reduction triggered).
Verified May 31, 2026 · Source: michigan.gov · Full Michigan rule →
MinnesotaConditional
Graduated; top rate 9.85% (2026 rates 5.35% / 6.80% / 7.85% / 9.85%). The 9.85% rate starts at $203,151 of Minnesota taxable income for a single filer and $337,931 married filing jointly. Brackets are re-indexed for inflation every year.
Verified Jul 30, 2026 · Source: revenue.state.mn.us · Full Minnesota rule →

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