Wisconsin: Will Execution Requirements
The short answer
To sign a valid will in Wisconsin you must be at least 18 and of sound mind, put the will in writing, and sign it yourself (or have someone sign for you at your direction and in your conscious presence). At least two witnesses must sign within a reasonable time after watching you sign or acknowledge the will. Notarization is not required — an optional self-proving affidavit just speeds up probate. Wisconsin does NOT accept a handwritten (holographic) will with no witnesses, and it has no fully electronic (paperless) will, but it does allow attorney-supervised remote witnessing over live video. A will that misses these steps is invalid, though Wisconsin honors a will valid where you signed it.
Ask Ezel about your situation
This is the general rule in Wisconsin. Ezel applies current Wisconsin law to your specific facts and answers with citations to the statutes.
| Governing law | Wis. Stat. ch. 853, subch. I: § 853.01 (capacity), § 853.03 (execution, including remote audio-video witnessing), § 853.04 (self-proved will), § 853.05 (out-of-state / nonresident execution), § 853.07 (witnesses / interested witness). Wisconsin is a common-law attested-will state using the modern 'reasonable time' witnessing rule; it recognizes no holographic will and has no fully electronic (paperless) will and no harmless-error statute |
|---|---|
| Minimum age & capacity | 'Any person of sound mind 18 years of age or older may make and revoke a will' (§ 853.01). A flat age of 18. 'Sound mind' is the ordinary testamentary-capacity standard — understanding the act, one's property, and the natural objects of one's bounty |
| Writing & signature | Every will 'must be in writing' and signed by the testator, by the testator with another person's assistance and consent, or 'in the testator's name by another person at the testator's direction and in the testator's conscious presence' (§ 853.03(1)). No statutory signature-at-the-end rule |
| Witnesses required | At least two witnesses, each of whom signs 'within a reasonable time' after the testator signs the will, or acknowledges the signature or the will, 'in the conscious presence of the witness' (§ 853.03(2)(am)); the two witnesses may observe at different times (§ 853.03(2)(bm)) — the relaxed modern rule. Any person competent to testify may witness (§ 853.07(1)). Interested-witness rule (§ 853.07(2)): a gift to a witness or the witness's spouse does not void the will but is 'invalid to the extent' it exceeds their intestate share, UNLESS two disinterested witnesses also signed or there is sufficient evidence the testator intended the full transfer |
| Notarization & self-proving | Notarization is NOT required to make a will valid — a notary is not a witness. Wisconsin offers an optional self-proved will: the testator and witnesses swear an affidavit before an officer authorized to administer oaths (a notary), certified under official seal, either at execution ('one-step') or later ('two-step') (§ 853.04). For a remotely witnessed will, the supervising attorney's affidavit of compliance also counts as a self-proving affidavit (§ 853.03(2)(c)13) |
| Handwritten (holographic) wills | No. Wisconsin does not recognize holographic (handwritten, unwitnessed) wills — § 853.03 requires every will to be in writing AND signed by at least two witnesses, with no holographic exception. A will validly executed elsewhere, including a holographic one, may still be honored under § 853.05 |
| Electronic & remote wills | Partial — remote witnessing yes, paperless electronic will no. Wisconsin allows the two witnesses to appear by 'simultaneous remote appearance by 2-way, real-time audiovisual communication technology' if the signing is supervised by a Wisconsin-licensed attorney and the testator and both witnesses are physically in Wisconsin, show ID, and the signed paper original is delivered to the witnesses and the attorney (§ 853.03(2)(c)). Wisconsin has NOT adopted a fully electronic (electronically signed, paperless) will — the will remains a signed paper document |
| Harmless-error / curative doctrine | No. Wisconsin has no harmless-error or substantial-compliance statute; § 853.03 says a will 'must be' executed 'with all of the following formalities,' so a will that misses one (for example, only one witness) is invalid. Wisconsin instead relaxes execution through its witnessing rules (reasonable time, conscious presence, witnesses at different times). A will valid where it was executed, or under the testator's residence/domicile law, is honored (§ 853.05) |
Compare this rule across all 50 states + DC →
Requirements one by one
Governing law
Wisconsin's will-execution rules are in Chapter 853 of the statutes. Section 853.01 says
who may make a will, § 853.03 sets the writing, signature, and witness rules (and, since a
recent update, allows remote audio-video witnessing), § 853.04 provides the optional
self-proved will, § 853.05 honors wills validly signed elsewhere, and § 853.07 covers who
may witness and the effect of a witness who also inherits. Wisconsin uses the traditional
attested will but with the modern "reasonable time" witnessing rule. It recognizes no
handwritten (holographic) will, has not adopted a fully electronic (paperless) will, and
has no harmless-error rule to excuse a botched signing.
Minimum age & capacity
To make a Wisconsin will you must be "of sound mind 18 years of age or older" (§ 853.01).
The age floor is a flat 18, with no marriage or military exception. "Sound mind" is the
ordinary testamentary-capacity standard: at the time of signing you understand that you are
making a will, know in a general way what you own, and know the people who would normally
inherit from you.
Writing & signature
Every will "must be in writing" (§ 853.03). You meet the signature step by signing it
yourself, by signing "with the assistance of another person with the testator's consent,"
or by having another person sign your name "at the testator's direction and in the
testator's conscious presence" (§ 853.03(1)). Wisconsin has no rule that the signature
appear at the very end of the document.
Witnesses required
A Wisconsin will needs at least two witnesses, and the timing rule is the modern, forgiving
one. Each witness must sign "within a reasonable time" after you sign the will, or after you
acknowledge your signature or the will, "in the conscious presence of the witness"
(§ 853.03(2)(am)). Two features stand out: the witnesses do not have to sign at the exact
moment you do — a reasonable time later is fine — and the "2 witnesses… may observe the
signing or acknowledgement… at different times" (§ 853.03(2)(bm)). "Conscious presence"
means the witness is aware, through sight, hearing, or general awareness, that you are
signing. Any person competent to testify may serve as a witness (§ 853.07(1)).
The interested-witness rule is a partial "purge." A gift to a witness (or the witness's
spouse) does not invalidate the will, but under § 853.07(2)(b) it is "invalid to the extent"
it exceeds what that person would have inherited in intestacy — unless the will is also
signed by two disinterested witnesses, or there is "sufficient evidence that the testator
intended the full transfer" (§ 853.07(2)(c)). Using two disinterested witnesses avoids the
issue.
Notarization & self-proving
A Wisconsin will does not have to be notarized to be valid — a notary is not one of the two
required witnesses. What notarization powers is the optional self-proved will. Under
§ 853.04 the testator and witnesses swear an affidavit before an officer authorized to
administer oaths (a notary), certified under official seal. Wisconsin offers two paths: a
"one-step" affidavit signed at the same time the will is executed, and a "two-step"
affidavit added at any later date. A self-proved will can be admitted to probate without
bringing the witnesses in to testify, but the affidavit is a convenience, not a validity
requirement.
Handwritten (holographic) wills
Wisconsin does not recognize holographic wills. Section 853.03 requires every will to be in
writing AND signed by at least two witnesses, with no exception for a will in the testator's
own handwriting. A handwritten page signed with no witnesses is not a valid Wisconsin will.
The exception runs the other way: under § 853.05, a will validly executed under the law of
the place where you signed it, or where you resided or were domiciled — including a
holographic will from a state that allows them — is honored in Wisconsin.
Electronic & remote wills
Wisconsin splits the difference on modern execution. It does allow remote witnessing: the
two witnesses may appear by "simultaneous remote appearance by 2-way, real-time audiovisual
communication technology" (§ 853.03(2)(c)) — but only if the signing is supervised by a
Wisconsin-licensed attorney, the testator and both witnesses are physically located in
Wisconsin, everyone identifies themselves (showing photo ID if not already known), and the
signed paper original is then delivered or mailed to the witnesses and the supervising
attorney, who prepares an affidavit of compliance. What Wisconsin has not done is authorize
a fully electronic, paperless will signed with an electronic signature. The will itself
remains a signed paper document; only the witnessing can happen over video.
Harmless-error / curative doctrine
Wisconsin is a strict-compliance state. Section 853.03 says a will "must be… executed with
all of the following formalities," and there is no harmless-error or substantial-compliance
statute, so a will that misses one — for example, only one witness — is invalid, no matter
how clearly it reflects the testator's wishes. Wisconsin's flexibility is built into the
witnessing rules instead (reasonable time, conscious presence, witnesses at different
times), not into an after-the-fact rescue. A will valid where it was executed is honored
under § 853.05.
What trips people up
Wisconsin has no handwritten-will option. A signed note in your own handwriting is not
a valid will here — Wisconsin requires two witnesses (§ 853.03). Because there is no
harmless-error rule, a court cannot rescue an unwitnessed handwritten will made in
Wisconsin.
"Reasonable time" is flexible, but do not push it. The witnesses can sign a reasonable
time after you do, and even at different times from each other (§ 853.03(2)(am)-(bm)). That
flexibility is real, but the safe practice is still to have both witnesses sign promptly, in
your presence, while everyone remembers the event.
Remote witnessing is lawyer-supervised, not casual video. Wisconsin allows witnessing
by live two-way video, but only under § 853.03(2)(c): a supervising Wisconsin attorney, the
testator and witnesses all physically in Wisconsin, identity checks, and a signed paper
original mailed around and an affidavit of compliance. A quick unsupervised video call does
not meet the statute.
A gift to a witness can be cut down. Under § 853.07(2), if a beneficiary also serves as
a witness, the gift is invalid to the extent it exceeds their intestate share, unless two
disinterested witnesses also signed or there is clear evidence the testator meant the full
gift. Use two witnesses who inherit nothing.
Common questions
Does my Wisconsin will have to be notarized? No. Wisconsin requires two witnesses, not a
notary (§ 853.03). Notarizing the optional self-proving affidavit (§ 853.04) just lets the
will be admitted to probate without calling the witnesses to testify; it is not required for
the will to be valid.
Can I write my Wisconsin will by hand? You can write it by hand, but it still needs two
witnesses — Wisconsin does not recognize an unwitnessed handwritten (holographic) will
(§ 853.03). If you already signed a valid holographic will in a state that allows them,
Wisconsin will honor it under § 853.05.
Can my witnesses sign later, or over video? A reasonable time later is fine, and even at
different times (§ 853.03(2)(am)-(bm)). Video witnessing is allowed only under the
supervised remote process in § 853.03(2)(c) — a Wisconsin attorney, everyone located in
Wisconsin, and a signed paper original. A fully electronic, paperless will is not valid in
Wisconsin.
Can a beneficiary be one of my witnesses? It is risky. Under § 853.07(2) the witness's
gift can be reduced to their intestate share unless two disinterested witnesses also signed
or the testator's full intent is clearly proved. The clean fix is to use two witnesses who
are not beneficiaries.
Statutes and sources
- Wis. Stat. § 853.01 — capacity: any person of sound mind 18 or older may make and revoke a will.
https://docs.legis.wisconsin.gov/document/statutes/853.01 (accessed 2026-07-11) - Wis. Stat. § 853.03 — core execution: writing, testator's signature, two witnesses signing within a reasonable time in conscious presence; remote audio-video witnessing.
https://docs.legis.wisconsin.gov/document/statutes/853.03 (accessed 2026-07-11) - Wis. Stat. § 853.04 — optional self-proved will by affidavit before an officer authorized to administer oaths (one-step or two-step).
https://docs.legis.wisconsin.gov/document/statutes/853.04 (accessed 2026-07-11) - Wis. Stat. § 853.05 — a will validly executed under the law of the place of signing or the testator's residence/domicile is honored in Wisconsin.
https://docs.legis.wisconsin.gov/document/statutes/853.05 (accessed 2026-07-11) - Wis. Stat. § 853.07 — who may witness; a gift to an interested witness is invalid beyond their intestate share unless two disinterested witnesses sign or intent is clearly shown.
https://docs.legis.wisconsin.gov/document/statutes/853.07 (accessed 2026-07-11)
Source links
Every statute quoted above, linked, with the date we checked it.
Get the answer for your situation
You just read how Wisconsin handles this in general. Ezel applies current Wisconsin law to your facts and answers your specific question, with citations.
Opens in Ezel Pro. Every answer cites the authority it relies on.