The Wisconsin Wealth Guide: State Taxes for High Earners, Retirees, and Trump Accounts

Wisconsin taxes income at four rates from 3.50 percent to 7.65 percent, excludes 30 percent of long-term capital gains, fully exempts Social Security, and has no state estate or inheritance tax. Since 2025, residents 67 and older can exclude up to $24,000 of retirement account income per person, $48,000 per couple, with no income limit. The notable bad news for wealthy families: Wisconsin does not conform to the federal tax deferral on new Trump accounts, so earnings in a child's account are taxed annually. Here is the full picture for 2026.

What are Wisconsin's income tax brackets?

Wisconsin has four brackets: 3.50 percent, 4.40 percent, 5.30 percent, and 7.65 percent. For 2025, the most recent year published by the Wisconsin Department of Revenue, the top rate begins at taxable income of $323,290 for single filers and $431,060 for married couples filing jointly; thresholds adjust annually for inflation. The 2025-2027 state budget, 2025 Wisconsin Act 15, widened the 4.40 percent bracket, a modest cut aimed at middle incomes.

Two features matter disproportionately for high earners. First, Wisconsin's standard deduction operates on a sliding scale and phases out entirely as income rises, so most readers of this article effectively have none. Second, estates and trusts use the single-filer rate schedule, reaching 7.65 percent quickly; income accumulated in a non-grantor trust that is taxable to Wisconsin gets no quarter. At 7.65 percent, Wisconsin's top rate is higher than every neighboring state: Illinois at 4.95 percent flat, Michigan at 4.25 percent flat, Iowa now at 3.8 percent flat, and Minnesota the exception at 9.85 percent.

How does Wisconsin treat capital gains?

More favorably than most states with an income tax. Wisconsin excludes 30 percent of net long-term capital gains from taxable income, and 60 percent for gains on farm assets held more than one year, per Wisconsin Department of Revenue guidance. For a top-bracket taxpayer, the effective state rate on long-term gains is therefore about 5.36 percent rather than 7.65 percent.

A hypothetical: a Madison founder sells business interests and recognizes a $2,000,000 long-term capital gain. Wisconsin taxes 70 percent of it, $1,400,000, which at the top rate produces roughly $107,000 of state tax, versus about $153,000 if the full gain were taxed. The exclusion applies to long-term gains generally; short-term gains are taxed in full as ordinary income. Wisconsin also offers deferral and exclusion programs for gains reinvested in qualified Wisconsin businesses, which are narrow but worth checking before any sale.

What changed for retirees: the $24,000 exclusion

Act 15, signed July 3, 2025, raised Wisconsin's retirement income exclusion from $5,000 to $24,000 per person beginning with tax year 2025. Taxpayers who are at least 67 by year-end may exclude up to $24,000 of distributions from 401(k)s, 403(b)s, pensions, and IRAs; a married couple where both spouses qualify can exclude up to $48,000. Unlike the old subtraction, there is no income phase-out, so high-income retirees qualify fully.

There is a catch worth knowing: a taxpayer who claims the exclusion cannot claim Wisconsin income tax credits, such as the school property tax credit, in the same year. For most affluent retirees the exclusion wins easily, but the election should be checked, not assumed.

The exclusion stacks on top of treatment that was already favorable. Wisconsin does not tax Social Security benefits at all. Certain pensions are fully exempt, including military retirement pay and some pre-1964 federal and Wisconsin government pensions. A hypothetical 68-year-old Madison couple drawing $70,000 of Social Security and $120,000 of IRA withdrawals would pay Wisconsin tax on only $72,000 of that income before deductions: the Social Security is exempt and $48,000 of the IRA income is excluded. Sequencing which accounts fund spending each year still matters, and our piece on tax-smart withdrawal sequencing covers that logic.

Does Wisconsin have an estate or inheritance tax?

No. Wisconsin imposes neither an estate tax nor an inheritance tax, a meaningful advantage over states such as Minnesota and Illinois, which levy estate taxes with exemptions far below the federal $15 million. For Wisconsin families, estate tax planning is a purely federal exercise, which simplifies decisions about gifting, trust situs, and where to hold appreciating assets. See our article on high-income tax planning in 2026 for the federal side.

What about Trump accounts, Edvest, and business owners?

Trump accounts.Wisconsin is one of at least seven states, alongside California, Pennsylvania, Hawaii, Massachusetts, Kentucky, and South Carolina, that do not conform to the federal deferral on new Section 530A Trump accounts. Earnings in a Wisconsin child's account are taxed annually on the parents' or child's Wisconsin return, and state basis must be tracked separately from federal for years. The federal benefits and the free $1,000 seed often still justify the account; the state drag mostly argues against large voluntary contributions. Our full guide to Trump accounts works through the numbers.

Edvest 529 deduction.Wisconsin taxpayers may deduct up to $5,280 per beneficiary in 2026 for contributions to Edvest, the state's 529 plan ($2,640 for married filing separately), and the deduction is available to any Wisconsin contributor, not just the account owner. Qualified growth escapes Wisconsin tax entirely, which makes Edvest a cleaner education vehicle for Wisconsin families than a Trump account.

Manufacturing and agriculture credit.Owners of Wisconsin manufacturing or agricultural operations can claim a credit equal to 7.5 percent of qualified production income, which reduces the effective Wisconsin rate on that income to roughly 0.15 percent for individuals at the top bracket. For owners of pass-through manufacturers, this credit frequently dwarfs every other state tax planning idea and deserves first-order attention before any sale or restructuring.

Should retirees leave Wisconsin for tax reasons?

Sometimes, but less often than the marketing suggests. A retiree couple living on $200,000 of withdrawals and Social Security may find that, after the exemptions above, their Wisconsin income tax is in the high four figures; moving to Florida saves that amount, before counting higher insurance, housing, and travel costs, and the real lifestyle question of leaving family. A household realizing seven-figure gains or large ordinary income each year faces a genuinely large differential, often $50,000 to $100,000 or more annually, and relocation can be rational.

Anyone who moves should do it properly. Wisconsin determines residency by domicile, and a part-year or questionable move invites scrutiny of where you spend days, vote, register vehicles, and keep your primary home. A split arrangement, Wisconsin summers and a southern winter domicile, can work, but it must be documented and lived, not just filed. We model the true all-in differential for families considering this, including what it does to charitable plans, trust income, and eventual estate administration.

Key numbers (2026, Wisconsin)

Frequently asked questions

Does Wisconsin tax Social Security?No. Social Security benefits are fully exempt from Wisconsin income tax regardless of income.

Who qualifies for the $24,000 retirement exclusion?Wisconsin residents who are at least 67 by the end of the tax year, on distributions from qualified plans and IRAs. There is no income limit, but claiming it forfeits Wisconsin tax credits for that year.

Does Wisconsin have an estate tax?No. Wisconsin has no estate or inheritance tax; only the federal estate tax applies to Wisconsin residents.

How are capital gains taxed in Wisconsin?Short-term gains are taxed as ordinary income. Net long-term gains receive a 30 percent exclusion, producing an effective top rate of about 5.36 percent; qualifying farm assets receive a 60 percent exclusion.

Are Roth conversions taxed by Wisconsin?Yes, conversion income is taxable in the year of conversion, and the age-67 retirement exclusion can shelter up to $24,000 per person of it for qualifying taxpayers. Converting before a planned move to a no-tax state is usually backwards; see our Roth conversion article.

Why is my child's Trump account generating Wisconsin tax?Wisconsin did not adopt the federal deferral for Section 530A accounts, so dividends and realized gains inside the account are Wisconsin-taxable each year even though no money has been withdrawn.