Wisconsin repealed its state estate tax in 2008, leaving Wisconsin residents subject only to federal estate and gift tax rules. The federal estate tax exemption currently shelters more than $13 million per individual — over $26 million for a married couple with proper portability planning — from federal estate tax. For most Wisconsin families, the practical focus of estate planning centers on avoiding probate, coordinating beneficiary designations, planning for incapacity, and protecting assets from Medicaid spend-down for long-term care.

Wisconsin's community property framework under the Wisconsin Marital Property Act (Wis. Stat. Ch. 766) fundamentally shapes estate planning for married couples. Because marital property is owned equally by both spouses, each spouse's will or trust can only dispose of that spouse's one-half interest in marital property — the surviving spouse already owns the other half outright. This differs sharply from common-law equitable distribution states, where a surviving spouse may have no automatic ownership interest in assets titled in the deceased spouse's name. Wisconsin community property also receives a full step-up in income tax basis at the death of either spouse — both halves of marital property step up to fair market value, a significant income tax benefit compared to the one-half step-up available for jointly held property in common-law states.