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How do I make a valid will in Wisconsin?

Federal & State Law Editorial TeamLast reviewed: 2026-04-30

Wisconsin wills are governed by Wis. Stat. Chapter 853.

1. Testator Requirements

  • Age: 18 or older (Wis. Stat. § 853.01).
  • Capacity: Sound mind.
  • 2. Witness Requirements (Wis. Stat. § 853.03)

  • In writing.
  • Signed by the testator (or by another at the testator's direction in the testator's conscious presence).
  • Signed by 2 witnesses, each of whom signed within a reasonable time after witnessing any of the following: the signing of the will, the testator's implicit or explicit acknowledgment of the signature, or the testator's implicit or explicit acknowledgment of the will.
  • 3. Notarization

    Not required for validity. A self-proving affidavit (Wis. Stat. § 853.04) executed before a notary makes the will self-proved.

    4. Holographic Wills NOT Recognized in Wisconsin

    Wisconsin does not recognize holographic wills executed in Wisconsin. Wis. Stat. § 853.05 honors a will valid in the place where executed or where the testator was domiciled.

    5. Statutory Will

    Wisconsin provides a fill-in-the-blank statutory will form (Wis. Stat. § 853.55).

    6. Marital Property State

    Wisconsin is a marital property (community property) state. A will controls only the testator's individual property and the testator's half of marital property.

    7. Harmless Error Rule

    Wis. Stat. § 853.03(2) provides a harmless error rule — a document may be treated as a will if proponent shows by clear and convincing evidence that the decedent intended the document as a will.

    8. Interested Witnesses

    Wisconsin abolished the interested-witness rule (Wis. Stat. § 853.07) — a beneficiary may witness without losing the gift.

    9. Intestacy (No Will)

    Wis. Stat. § 852.01: Spouse + descendants all of marriage — spouse takes all. Spouse + descendants from outside marriage — spouse takes 1/2 individual property and the testator's 1/2 marital property, with descendants taking the remaining 1/2 individual.

    10. Small Estate Threshold

    Wisconsin's transfer by affidavit (Wis. Stat. § 867.03) is available for estates with property value not exceeding $50,000.

    This is legal information, not legal advice.

    When to Talk to a Lawyer
    • You have marital property planning needs
    • You want to invoke harmless error
    • You want to use the statutory will form
    Related Statutes & Laws
    • Wis. Stat. § 853.01
    • Wis. Stat. § 853.03
    • Wis. Stat. § 853.04
    • Wis. Stat. § 853.05
    • Wis. Stat. § 853.55
    • Wis. Stat. § 852.01
    • Wis. Stat. § 867.03

    This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.