Capital gains tax in Wisconsin (2026): selling a business, real estate or farm

How the 30% exclusion works

Wisconsin taxes capital gains through its regular brackets, but first lets residents subtract 30% of the net capital gain on assets held more than one year, and on all assets acquired from a decedent regardless of holding period (Wis. Stat. 71.05(6)(b)9; 2025 Schedule WD). Gains and losses on all assets are netted on Schedule WD before the percentage applies. With the 2026 joint top rate of 7.65% above $443,630 (2026 Form 1-ES), the effective top rate on a long-term gain is about 5.36%.

The exclusion follows the federal character of each dollar. Amounts treated as ordinary income for federal purposes, such as IRC 1245 recapture on equipment, get no exclusion (2025 Schedule WD). Wisconsin also limits net capital losses against other income to $3,000 ($1,500 married filing separately), matching the federal limit, and tracks its own carryovers on Schedule WD, which can differ from the federal figure.

Farm sales: 60% excluded

Wisconsin doubles the break for agriculture: 60% of net long-term gain from farm assets is excluded (2025 Schedule WD, lines 21 to 25). Farm assets are livestock, farm equipment, farm real property and farm depreciable property used in farming. That leaves only 40% of a qualifying farm gain in Wisconsin income, so the effective top rate falls to about 3.06% (7.65% times 40%, 2026).

• Recapture on equipment and buildings is still fully taxable; the 60% applies to capital gain only (2025 Schedule WD).
• Trees other than fruit or nut trees are not an agricultural commodity, and woodland that cannot be used in farming does not get 60%; it falls back to 30% (2025 Schedule WD).
• Land rented to a farmer is a judgment call worth documenting: the asset must be used in farming.

Farm property is also exempt from the federal Section 453A interest charge on large notes (IRC 453A(b)(3)(B)), which makes a Section 453 installment sale to a young farmer easier to model. The farmland guide covers the federal Section 1231 side.

Worked example: Wisconsin versus its neighbors

A joint-filing couple with $200,000 of other income sells a company for a $2,000,000 long-term gain plus $300,000 of equipment recapture. Federal rates for 2026 are 0%, 15% and 20%, with 20% above $613,700 of joint taxable income (Rev. Proc. 2025-32); the federal guide covers them.

• As Wisconsin residents in 2026, the sale adds $130,050 of state tax and $717,025 overall, an effective 31.2%.
• In Illinois, with no exclusion and a flat rate (2026), the state piece would be $113,850.
• In Minnesota, the state piece would be $239,550, so Wisconsin costs $109,500 less than Minnesota on the identical deal.

Wisconsin's state bill is close to Illinois's on a business sale, and much lower on a farm sale where 60% applies (2025 Schedule WD). The Minnesota page and Illinois page have the details for border sellers.

Installment sales keep the exclusion

Wisconsin follows the federal installment method. Gain reported on federal Schedule D from an installment sale goes on Schedule WD, and the holding period at the time of sale controls: property held more than one year when sold keeps the 30% or 60% exclusion on every later payment (2025 Schedule WD instructions). Because each year's gain runs through the brackets separately, a note can keep some years below the $443,630 joint top-bracket line (2026 Form 1-ES), though most of the benefit of spreading is federal. Interest on the note is ordinary income with no exclusion. The seller financing analysis covers security, personal guarantee and default terms.

Wisconsin-only deferrals and basis quirks

Two Wisconsin programs can change the state number (2025 Schedule WD):

• Qualified Wisconsin Business (QWB): long-term gain reinvested in a qualified Wisconsin business can be deferred for Wisconsin purposes, reported on Schedule CG.
• Wisconsin Qualified Opportunity Fund (WQOF): gain on an investment in a WQOF held at least five years can be subtracted from Wisconsin income, separate from the federal Opportunity Zone rules.

Basis can also differ: where Wisconsin's version of the Internal Revenue Code or a different election changed depreciation, the sale is recomputed on a Wisconsin Form 4797 and adjusted through Schedule T or Schedule I. Property acquired before 2014 starts with the same basis for both systems (2025 Schedule WD).

Transfer fee, nonresidents and estates

The grantor pays Wisconsin's real estate transfer fee of 30 cents per $100 of value, 0.3%, on conveyances not exempted (Wis. Stat. 77.22, 2026). Nonresidents selling Wisconsin land and buildings report the gain on Form 1NPR; Wisconsin computes tax on total income and prorates the brackets by the ratio of Wisconsin income to federal adjusted gross income (2026 Form 1-ES). Wisconsin has no estate or inheritance tax, so the sell-or-hold question for heirs turns on the federal step-up; see the hold-for-step-up analysis. Get the Big Sale Tax Analysis at /analysis/ to model cash, a note and a 1031 exchange with Wisconsin's exclusions applied correctly.

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Frequently asked questions