Wisconsin income tax goes up to 7.65% at the top bracket. Calculate your combined federal + state effective tax rate for 2026. Formula shown, sources cited — no account required.
Wisconsin applies four income tax brackets, with rates running from 3.54% at the bottom to 7.65% at the top for income above approximately $280,000 on a joint return. For households earning the state median of $77,488, the applicable rate typically falls in the 5.3% bracket range, producing an effective state rate near 4.5–5% after standard deductions. That places Wisconsin among the higher-taxed Midwest states alongside Minnesota. The top 7.65% rate applies to relatively high earners, but the bracket thresholds are low enough that upper-middle-income professionals reach the 6.27% or 7.65% tiers without being wealthy. Wisconsin conforms generally to federal adjusted gross income as the starting point, allowing standard deductions to reduce the state tax base. Capital gains are taxed as ordinary income at the graduated rates. The modest 5.72% sales tax helps keep consumption taxes lower than many neighboring states. Use a tax bracket calculator to identify your Wisconsin marginal rate and evaluate whether maxing out pre-tax retirement contributions would push you into a lower bracket.
Wisconsin Tax Brackets Explained (2026)
Wisconsin has a state income tax with a top marginal rate of 7.65%. On top of federal rates (10%–37%), residents can face a combined marginal rate exceeding 35% at higher income levels. However, your effective rate is always lower than the marginal rate because only income above each threshold is taxed at that bracket's rate.
The median household in Wisconsin earns $77,488/year. At that income (single filer), the federal effective rate is approximately 12–14%, bringing total income tax (federal + state) to roughly 17–19%.
How Marginal vs. Effective Rate Works
The marginal rate is the rate on your last dollar of income — it does not apply to all income. The effective rate is your total tax divided by total income. For example, someone earning $100,000 in Wisconsin has a 22% federal marginal rate but an effective federal rate of roughly 15%, because the first $44,725 (2024) is taxed at 10% and 12%, not 22%.