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Will requirements in Wisconsin

To make a valid will in Wisconsin, you must be at least 18 and of sound mind, and you must sign the will with two witnesses watching. A notary is not required to make the will valid, though most people add a notarized self-proving affidavit so the court can accept the will later without locating the witnesses. Wisconsin does not recognize handwritten wills; every will here needs those two witnesses, however it is written.

Jurisdiction fact sheetWisconsin
Minimum age
18
Witnesses
2
Notarization
Not required
Self-proving affidavit
Yes, a separate notarized document
Handwritten (holographic) wills
Not recognized
Electronic wills
Not recognized
Property system
Community property
Last legal review: April 2026Myend vetted jurisdiction rule set

Who can make a will in Wisconsin

Wisconsin asks two things of you before a will counts: that you are at least 18, and that you are of sound mind when you sign. Sound mind is a practical standard, not a medical one. It means you can say, in your own words, roughly what you own, who your close family is, and that the document in front of you is meant to give it away when you die.

Signing your will in Wisconsin

  1. You sign

    You sign the will, or you direct someone else to sign it for you, in your conscious presence.

  2. Two witnesses sign

    Two witnesses sign as well, each within a reasonable time after watching you sign or after you acknowledge your signature to them. Wisconsin allows the two witnesses to do this separately rather than together in the same room. Choose adults who inherit nothing under the will, so no gift is ever in question later.

  3. The affidavit

    Optional but common: a self-proving affidavit, sworn by you and your witnesses before a notary. Attach it, and the probate court can accept your will later without calling anyone to testify.

Testator
Witness one
Witness two

Handwritten and electronic wills

Wisconsin does not recognize a will written and signed entirely in your own hand with no witnesses. The execution statute calls for two witnesses on every will, whatever form it takes, and there is no separate path around that for handwriting alone. Wisconsin has also not authorized an electronic will, one that exists only as a digital record; the will a Wisconsin court probates is paper, signed and witnessed the ordinary way. That is exactly how Myend’s Last Will works everywhere: you build the will online, then print and sign it with your witnesses, on paper, the form every state accepts.

Married in Wisconsin: marital property

Wisconsin reaches the same result as Texas or California by a different road. Instead of inheriting community property from Spanish civil law, Wisconsin wrote it into being: the Marital Property Act, based on the national Uniform Marital Property Act, took effect on January 1, 1986, making Wisconsin the ninth community property state. For your will, the effect is the same as in any community property state. Most of what you and your spouse acquire during the marriage is presumed to belong to both of you, half and half, no matter whose name is on the account or the title. Your will controls your half, plus your individual property, generally what you owned before the marriage or received on your own as a gift or inheritance.

Your executor

Wisconsin calls the person who carries out your will the executor. You can name almost any capable adult, including someone who lives in another state, but an out-of-state executor has to appoint someone in Wisconsin to accept legal papers for the estate and file that appointment with the court. A court is required to remove a nonresident executor who has not done so. New to the role? Start with what an executor actually does.

If someone challenges the will

Wisconsin puts this in statute rather than leaving it to the courts: a clause that penalizes someone for contesting your will cannot be enforced if the court decides that person had probable cause for bringing the challenge. Probable cause here means a real basis for questioning the will, not a long-shot attempt at a bigger share.

If you do not make a will

Without a will, Wisconsin’s intestacy law divides your estate among a fixed list of relatives, an order with no way of knowing who actually mattered to you. Unmarried partners, stepchildren you raised as your own, and close friends typically inherit nothing under that order. A valid will is how you replace the state’s default with your own decisions. See what happens if you die without a will.

What is different about Wisconsin

Wisconsin wrote community property into law by choice, not by inheritance, yet it still will not take your word in your own handwriting.

Eight of the nine community property states got there the way Texas and California did, through Spanish or French civil law carried over from colonial rule. Wisconsin got there through a legislature instead. The Wisconsin Marital Property Act, based on the national Uniform Marital Property Act, took effect on January 1, 1986, and Wisconsin remains the only state that ever enacted a version of that uniform law. Once it did, marriage in Wisconsin worked the same way it does in Texas: most of what you build together during the marriage belongs to both of you, half and half, whatever the paperwork says.

That partnership framing does not extend to how you write the will itself. Wisconsin is one of only three community property states, alongside Washington and New Mexico, that will not accept a will written and signed entirely in your own hand. Every Wisconsin will, no matter who wrote it or how, needs the same two witnesses. The state that treats you as an equal partner in marriage still wants a second and third person watching you sign.

Common questions

Does a will have to be notarized in Wisconsin?
No. Two witnesses are what make a Wisconsin will valid. A notary only comes in if you add the optional self-proving affidavit, a separate sworn statement that saves the court from tracking down your witnesses later.
How many witnesses do I need for a Wisconsin will?
Two. They each need to sign within a reasonable time after watching you sign or after you acknowledge your signature or your will to them, and Wisconsin lets the two witnesses complete this at separate times rather than together in the same room.
Is a handwritten will legal in Wisconsin?
No. Wisconsin’s execution statute requires two witnesses for every will, with no separate path for one written entirely in your own hand. However clear the handwriting, it still needs the same two signatures as any other will here.
Can I make my will online in Wisconsin?
You can build it online. Wisconsin has not authorized a will that exists only as an electronic record, so the signing itself still happens on paper, in front of two witnesses. That is exactly the version Myend prepares.
What is a self-proving affidavit, and do I need one in Wisconsin?
A self-proving affidavit is a separate document you and your two witnesses sign in front of a notary. With it attached, a Wisconsin probate court can admit the will without contacting either witness afterward. It is not required, so a will without one is still valid, but the court will need to reach a witness if anyone ever questions it.
Can I disinherit my spouse in Wisconsin?
Not entirely, though Wisconsin does not use a classic elective share to do it. Because Wisconsin treats marriage as a partnership under its Marital Property Act, most of what you and your spouse earned or acquired during the marriage is already presumed to be owned by both of you, half and half, regardless of whose name is on it. Your will decides what happens to your half, plus anything that stayed individually yours.
Can my executor live out of state in Wisconsin?
Yes, with one step attached. A nonresident executor has to appoint someone in Wisconsin who can accept legal papers about the estate, and that appointment has to be filed with the court. A court is required to remove a nonresident executor who has not made and filed one.
What happens if I die without a will in Wisconsin?
Wisconsin’s intestacy statute divides your estate among a fixed list of relatives, an order that has no way of accounting for who actually mattered to you.

Sources and review

Legal sources
  • Wis. Stat. § 853.01Capacity to make or revoke a will: age 18 and sound mind
  • Wis. Stat. § 853.03Execution of wills: signature and two witnesses
  • Wis. Stat. § 853.04Self-proved will: the notarized affidavit
  • Wis. Stat. § 854.19Penalty clause for contest: unenforceable where the court finds probable cause for instituting the proceedings
  • Wis. Stat. § 857.15Removal of a personal representative, including a nonresident who has not appointed and filed a resident agent for service of process

Generated from Myend's vetted jurisdiction rule set. Last legal review: April 2026. General information, not legal advice.

Other community property states

The same marital rule, different signing law. Every page on this list carries its own values.

A will that meets Wisconsin's requirements

Myend prepares your Wisconsin will for exactly this signing process: two witnesses, an optional self-proving affidavit ready for the notary, and plain language throughout.