A will speaks only after you are gone, so nobody can fix a signing mistake later — the formalities are the whole ballgame. Here is exactly what Wisconsin requires when you sign a will, and how to run the signing so it holds up.
What Wisconsin requires
Wisconsin law calls for two witnesses when a will is signed, and notarization is not required.
Each witness watches you sign, or hears you acknowledge the signature as yours, and then signs. Wisconsin does not require them to sign at the same sitting, but one sitting is the easiest record to prove later.
Statutory detail: A Wisconsin will must be signed by the testator and by at least two witnesses who sign within a reasonable time after witnessing the testator's signing, or the testator's acknowledgment of the signature or of the will, in the witness's conscious presence (Wis. Stat. 853.03). The two witnesses may observe at different times, so a single sitting is best practice rather than a requirement. Notarization is not required for validity; it is required only for the self-proving affidavit under Wis. Stat. 853.04, which needs an officer authorized to administer oaths.
- Witnesses: 2
- Notary: not required
Step-by-step signing checklist
Follow the steps in order, and sign nothing until everyone who needs to be present is in the room.
- Print and review the final PDF: Print the final version single-sided and read every page. Confirm the names, dates, and the people you appointed before anyone signs — a correction after signing means re-signing.
- Arrange two witnesses: Ask two witnesses to join you — ideally at the same time and place, which Wisconsin does not require but which makes the signing easiest to prove. Choose adults who receive nothing under the document, and ask each to bring photo ID.
- Sign in front of everyone: Sign and date where the will indicates, with two witnesses watching. Do not sign ahead of time.
- Have the witnesses sign: Each witness signs the attestation section while you and the other witness watch, then prints their name and address by hand. If a witness cannot be there when you sign, Wisconsin lets them sign after you tell them the signature on the will is yours — but keep that gap short.
- Store the original and hand out copies: Keep the signed original somewhere safe and fireproof, tell the people you appointed where it is, and give them copies. Never write changes on the signed original — sign a corrected version instead.
Mistakes that undo a valid document
Most signing failures are procedural, not substantive — the document was fine and the ceremony was not.
- Signing alone and never acknowledging the signature to the witnesses — they must witness either the signing or your acknowledgment of it.
- Using someone who benefits under the document as a witness — it invites a challenge and, in some states, costs them their gift.
- Skipping a page, an initial line, or the date.
- Writing changes by hand on the signed original.
- Losing the original; a photocopy is often not enough.
After signing
The original is the document. Store it where it will survive a fire and a move, and make sure the people you appointed can find it without you.
Revisit the will when your family, your finances, or the people you appointed change. A new version is signed the same way; the old one should be destroyed once the new one is complete.
Frequently Asked Questions
How many witnesses does a Wisconsin will need?
Two. Each signs after watching you sign or hearing you acknowledge the signature; Wisconsin does not require them to be together, though one sitting is the easiest to prove.
Does a Wisconsin will have to be notarized?
No. Notarization is not required, though there is a statutory detail worth knowing: A Wisconsin will must be signed by the testator and by at least two witnesses who sign within a reasonable time after witnessing the testator's signing, or the testator's acknowledgment of the signature or of the will, in the witness's conscious presence (Wis. Stat. 853.03). The two witnesses may observe at different times, so a single sitting is best practice rather than a requirement. Notarization is not required for validity; it is required only for the self-proving affidavit under Wis. Stat. 853.04, which needs an officer authorized to administer oaths.
Do the witnesses need to read the document?
Generally no. A witness attests that you signed willingly and appeared to know what you were doing — not to the contents. They need to see you sign, or hear you say the signature is yours.
What should I do with the signed original?
Keep it somewhere safe and fireproof, tell the people you appointed exactly where it is, and give them copies. If anything needs to change later, sign a corrected version rather than marking up the original.