Not on the inheritance itself: Wisconsin taxes neither the estate nor the beneficiaryWis. Stat. § 72.36 (Sunset; 2013 Wis. Act 20) — the ch. 72 estate tax "does not apply to deaths occurring after December 31, 2012, unless the federal estate tax law is modified to provide a federal estate tax credit for state death taxes." Ch. 72 remains on the books as a dormant federal-credit (pickup) tax that computes to $0, not a repealed one. Wisconsin has no inheritance tax for decedents dying on or after January 1, 1992 and no gift tax for gifts made on or after January 1, 1992 (WI DOR, Estates, Trusts, and Fiduciaries common questions).Verified Sep 15, 2026View source, and the IRS does not treat an inheritance as income. What an heir can owe is income tax on withdrawals from an inherited retirement account, and capital gains on a later sale of inherited property, where the basis is reset to fair market value on the date of death26 USC § 1014Verified Sep 15, 2026View source and the gain faces state tax on the 70% of long-term gain left after a 30% exclusionWis. Stat. § 71.05(6)(b)9 (30% general LTCG exclusion; reaches estates and trusts per § 71.125(1))Verified Sep 15, 2026View source.

No. The IRS does not treat inherited money, real estate or personal items as income, so a beneficiary in Wisconsin does not report them on a federal return when received. Two exceptions: an inherited retirement account (a 401(k) or a traditional IRA) is taxed as ordinary income as it is withdrawn, and earnings after the date of death are taxable. Inherited property takes a stepped-up basis, its value on the date of death, for any later capital gain.

When someone dies, the cost basis of the property they leave is reset to its fair market value on the date of death26 USC § 1014Verified Sep 15, 2026View source under IRC § 1014. A later sale is taxed on the gain above that stepped-up basis, not above what the original owner paid, so the appreciation of the owner's lifetime is never taxed. The rule is federal and applies in Wisconsin as in every state.

Wisconsin intestacy law decides. As a community property stateWis. Stat. § 852.01Verified Sep 10, 2026View source, Wisconsin distinguishes community property (acquired during the marriage) from separate property (owned before it, or received as a gift or inheritance), and the surviving spouse's share differs for each. The estate passes to the closest surviving relatives, in most cases the spouse and children first, then in order: Parents; Brothers and sisters and their issue; Grandparents and their issue; The state school fundWis. Stat. § 852.01Verified Sep 10, 2026View source.