To make a valid will in Wisconsin, you must be at least 18 and of sound mind, put the document in writing, sign it, and have two witnesses sign it after watching you sign or hearing you acknowledge the signature or the will. Those are the core Wisconsin will requirements, and they come from Chapter 853 of the Wisconsin Statutes.1Wisconsin State Legislature. Wisconsin Code 853 – Section 853.03 Execution of Wills Miss any one of them and the whole document can fail, which pushes your estate into Wisconsin’s intestacy formula instead of your plan.
Who Can Make a Will
Any person 18 or older and of sound mind can make and revoke a will in Wisconsin.2Wisconsin State Legislature. Wisconsin Statutes 853.01 – Capacity to Make or Revoke a Will Sound mind is a legal standard, not a medical one. At the moment you sign, you need to understand what you own, recognize your natural heirs (spouse, children, close relatives), and grasp what signing a will does.
Wisconsin courts presume you are competent, and anyone contesting on capacity grounds carries the burden of proof. That usually means medical records, witness accounts, or expert evaluations. With progressive conditions such as Alzheimer’s, cases often come down to whether you had a lucid interval when you signed.
A separate ground for challenge is an “insane delusion”: a belief with no basis in fact or reason that directly caused you to disinherit someone you otherwise would have included. A testator can be generally competent and still have a will overturned on that basis if the delusion drove a specific disposition.
How to Sign the Will
The will must be in writing. Wisconsin does not recognize holographic wills, meaning a handwritten document you sign at the kitchen table without witnesses is not valid here no matter how clearly it states your wishes.1Wisconsin State Legislature. Wisconsin Code 853 – Section 853.03 Execution of Wills You do not have to use an attorney, and you do not have to type it. You do have to have it on paper, with your signature and two witness signatures.
If a physical condition prevents you from signing, another person can sign your name for you, but only at your direction and in your conscious presence. The Wisconsin Supreme Court made clear in Estate of Komarr that someone guiding a testator’s hand as a passive object is not enough; you have to affirmatively direct the signing.1Wisconsin State Legislature. Wisconsin Code 853 – Section 853.03 Execution of Wills
The Two-Witness Rule
Two witnesses must sign the will within a reasonable time after they either watched you sign, heard you acknowledge your signature, or heard you acknowledge the will itself.1Wisconsin State Legislature. Wisconsin Code 853 – Section 853.03 Execution of Wills Each witness has to be in your conscious presence during that act. Wisconsin reads conscious presence broadly, so awareness through any sense counts; the witnesses do not have to be looking directly at you the whole time.
Pick witnesses who do not benefit under the will. If a witness, or that witness’s spouse, is also a beneficiary, the gift to that person is cut down to what they would have received under intestacy. Two exceptions preserve the full gift: either two additional disinterested witnesses also signed the will, or there is enough other evidence that you intended the gift.3Wisconsin State Legislature. Wisconsin Code 853 – Section 853.07 Witnesses Being named as the executor or trustee, with standard compensation, does not count as an interested witness.
Adding a Self-Proving Affidavit
Wisconsin does not require your will to be notarized. But attaching a self-proving affidavit is one of the most useful things you can do during the signing. The affidavit is a sworn statement by you and both witnesses, signed before a notary, confirming the will was executed properly.4Wisconsin State Legislature. Wisconsin Statutes 853.04 – Self-Proved Will
With the affidavit attached, the probate court can accept the will without hauling your witnesses in to testify. Without it, they may need to appear in court or provide sworn statements after your death, which gets complicated if they have moved, lost contact, or died themselves.
You can create the affidavit at the same sitting as the will (one-step) or add it later (two-step). Either way, you and both witnesses sign before a notary who applies an official seal.4Wisconsin State Legislature. Wisconsin Statutes 853.04 – Self-Proved Will The one-step version is more common because everything happens together.
Storing the Will and Filing It After Death
Wisconsin does not require you to file your will with any court while you are alive. You can deposit it for safekeeping with the register in probate in your county of residence, which keeps the document protected and findable.5Wisconsin State Legislature. Wisconsin Code 853 – Section 853.09 Deposit of Will in Circuit Court During Testators Lifetime A fireproof safe at home works too. Safety deposit boxes are risky because opening one after death may require court authorization, which delays everything.
After death, anyone holding the original will must file it with the proper court or deliver it to the named personal representative within 30 days of learning about your death. A personal representative who knows they were named carries the same 30-day deadline. Failing to comply without reasonable cause can expose that person to liability for any damages the delay causes.6Wisconsin State Legislature. Wisconsin Statutes 856.05 – Delivery of Will to Court Keep the original somewhere your executor can actually reach it, and tell them where it is.
Where the original cannot be found after death, Wisconsin courts presume you destroyed it with the intent to revoke. That presumption is hard to rebut; the standard is clear and convincing evidence that you did not intend revocation. In Estate of Fonk, a 16-year-old will that could not be located was treated as revoked even though the testator had earlier expressed satisfaction with it.7Wisconsin State Legislature. Wisconsin Code 853 – Section 853.11 Revocation
Changing or Revoking Your Will
You can revise or revoke your will any time your capacity holds. Wisconsin recognizes three methods:8Wisconsin State Legislature. Wisconsin Statutes 853.11 – Revocation
- A later will that either expressly revokes the old one or is inconsistent with it. If the new will fully disposes of your estate, courts presume it replaces the old one; if it covers only part, courts presume it supplements the old will and revokes only the conflicting pieces.
- Physical destruction (burning, tearing, canceling, destroying) done with the intent to revoke. Another person can do it at your direction and in your conscious presence. Accidental destruction is not revocation.
- A codicil, which amends specific provisions but must be executed with the same formalities as a will (signed and witnessed).
Make a new will explicit. State that it revokes all prior wills so no one has to argue later about whether two documents were meant to coexist.
Divorce Changes Your Will Automatically
Divorce revokes any provision in your will benefiting your former spouse or relatives of that former spouse who are no longer related to you. The statute reaches further than people expect: it also strips a former spouse’s nomination as personal representative, severs joint tenancy with right of survivorship, and revokes powers of appointment granted to them. The automatic revocation applies only to documents executed before the divorce. If you remarry the same person, or your will explicitly says the provisions survive divorce, those exceptions apply.9Wisconsin State Legislature. Wisconsin Statutes 854.15 – Revocation of Provisions in Favor of Former Spouse or Former Domestic Partner
What a Wisconsin Will Does Not Control
A valid will does not reach every asset you own. Life insurance proceeds, retirement accounts, payable-on-death bank accounts, and jointly held property with survivorship rights pass under their own beneficiary designations or ownership structure. If your will leaves your IRA to your sister but the account names your ex-spouse, the beneficiary designation controls and your sister takes nothing.10Wisconsin State Legislature. Wisconsin Code 853 – Section 853.17 Effect of Will Provision Changing Beneficiary of Life Insurance or Annuity
Wisconsin also allows transfer-on-death deeds for real estate. A TOD deed recorded with the county register of deeds before your death passes the property directly to the named beneficiary and bypasses probate. You can revoke or change it at any time without the beneficiary’s consent.11Wisconsin State Legislature. Wisconsin Code 705 – Section 705.15 Nonprobate Transfer of Real Property on Death Review these designations alongside your will so they do not contradict each other.
Spousal Rights Override What the Will Says
Wisconsin is a community property state. Property acquired during the marriage is generally owned equally by both spouses regardless of whose name is on the account. A will trying to give away more than your half of marital property is open to challenge.
Separate property (what you owned before marriage or received by gift or inheritance) can go wherever you choose, but commingling it with marital assets (depositing an inheritance into a joint account, for example) can turn it into marital property. Record-keeping matters.
On top of that, a surviving spouse can elect a deferred marital property share worth up to 50 percent of the augmented deferred marital property estate. That elective share is a floor; even a will leaving the spouse nothing cannot defeat it. Plan with that in mind rather than assuming the will controls everything.
If Your Will Is Invalid: Wisconsin Intestacy
If the execution requirements are not met, or you never make a will, Wisconsin’s intestacy statute decides who inherits. Who gets what depends on which family members survive you:12Wisconsin State Legislature. Wisconsin Statutes 852.01 – Basic Rules for Intestate Succession
- Spouse and no children from another relationship: the spouse takes the entire estate.
- Spouse plus children from another relationship: the spouse takes your interest in marital property and property held equally with the spouse as tenants in common; the remaining property is split, half to the spouse and half to the children.
- Children and no spouse: the children inherit equally, with a predeceased child’s share passing to their children.
- No spouse or children: the estate goes to parents, then siblings, then grandparents and their descendants, in that order.
- No surviving relatives at all: the estate escheats to the State of Wisconsin.
Intestacy ignores stepchildren, close friends, charitable intentions, and any wish to stagger distributions to young beneficiaries. The court, not you, also picks who administers the estate. Meeting the execution requirements, keeping the original somewhere findable, and updating the document after major life changes are what keep that formula from running your estate instead of your plan.