Michigan Will Witness Requirements: Who Can and Cannot Sign (2026)

A Michigan will is only as strong as its witnessing. Get the two-witness signing right and the will will be admitted to probate quickly, quietly, and without an evidentiary hearing. Get it wrong - wrong witnesses, missing signatures, no self-proving affidavit - and even a perfectly-drafted will can spend months in a Michigan probate court while relatives fight and lawyers bill. The rules are simpler than most people think, but the mistakes are subtle. This guide covers Michigan's witness statute (MCL 700.2502(1)), who can and cannot serve as a witness, the "interested witness" carve-out (spoiler: Michigan does not disqualify beneficiaries the way old common law did), the exact signing-ceremony script attorneys use, and the Michigan self-proving affidavit that saves your family from calling witnesses to court after your death.

The 30-Second Answer

1. Two witnesses required under MCL 700.2502(1).
2. Both must be adults (18+), both must be competent (of sound mind).
3. Either witness type acceptable: witnesses can sign after seeing the testator sign OR after the testator acknowledges the will to them.
4. Michigan does NOT disqualify beneficiary witnesses under MCL 700.2505 - but best practice is to use two disinterested witnesses.
5. Self-proving affidavit (MCL 700.2504) turns the will into a "self-proving" document requiring no witness testimony at probate. Adds 5 minutes to the signing session, saves days at probate.
6. All three signatures (testator + two witnesses) in the same room, ideally same page. Michigan does not strictly require simultaneous presence, but it's the safest practice.

MCL 700.2502(1): The Statute

Michigan's Estates and Protected Individuals Code (EPIC) sets out the requirements for a valid written will in MCL 700.2502(1):

"Except as provided in subsection (2) and in sections 2503, 2506, and 2513, a will is valid only if it is all of the following:

(a) In writing.

(b) Signed by the testator or in the testator's name by some other individual in the testator's conscious presence and by the testator's direction.

(c) Signed by at least 2 individuals, each of whom signed within a reasonable time after he or she witnessed either the signing of the will as described in subdivision (b) or the testator's acknowledgment of that signature or acknowledgment of the will."

Key phrase: "witnessed either the signing of the will... or the testator's acknowledgment of that signature." Michigan uses a "witnessing OR acknowledgment" model, meaning a witness does not have to actually see the testator sign - they can be shown a pre-signed will if the testator acknowledges "yes, this is my signature; this is my will." Then the witness signs.

In practice, most Michigan attorneys have all three parties sign at the same table at the same time. It's the safest approach and eliminates any question of what the witnesses "acknowledged."

Who Can Be a Michigan Witness

To be a valid Michigan will witness, a person must:

• Be at least 18 years old. Michigan case law treats a 17-year-old witness as invalidating the witnessing act.
• Be competent - "of sound mind" and able to understand what they are witnessing. Extreme intoxication, dementia, or severe developmental disability disqualifies.
• Be able to sign their name or make a mark that can be authenticated.
• Understand English (or the language of the will) sufficiently to know what they are signing.

Michigan does NOT require:

• Michigan residency
• Citizenship
• Any specific relationship (or non-relationship) to the testator
• Notarization of the witness signatures (though notarization is used for the self-proving affidavit - see below)

Practical Michigan witness options for a DIY signing at home:

• Neighbors (best if you can find two disinterested adults)
• Co-workers
• Friends
• Bank employees (some Michigan banks will notarize AND witness for free)
• UPS Store / FedEx Office notary service (usually $5-$15 per signature)
• Michigan-licensed attorneys' staff (if you're already at the office)

The "Interested Witness" Rule (MCL 700.2505)

Old common law disqualified any witness who was named as a beneficiary in the will. Modern Michigan law does NOT follow this rule. Under MCL 700.2505:

"The signing of a will by an interested witness does not invalidate the will or any provision of it."

So under Michigan law, your spouse, child, or friend named in the will CAN serve as a witness without invalidating the will. But there's a practical reason to use two disinterested witnesses anyway:

• Reduced contest risk. Interested witnesses create the appearance (even if not the reality) of undue influence. Disinterested witnesses eliminate that argument.
• Simpler probate. Michigan probate courts sometimes ask extra questions when an interested witness signs.
• Self-proving affidavit works better. Notaries occasionally refuse to notarize self-proving affidavits with interested witnesses.

Best practice: use two disinterested adults. Beneficiaries can be present at the signing but should not be the witnesses of record.

The Signing Ceremony Playbook

Michigan estate planning attorneys typically use a standard "signing ceremony" script. Here is the DIY version you can use at your kitchen table:

1. Gather three people at the same table: the testator (you), Witness A, Witness B. If using the self-proving affidavit, add a notary as a fourth participant.
2. Testator asks the witnesses: "Please witness my signing of this document, which is my Last Will and Testament. Is that acceptable to each of you?" Wait for both witnesses to say yes.
3. Testator signs at the end of the will in the presence of both witnesses. Use your usual signature (the one you use on checks and legal documents).
4. Testator initials the bottom right corner of every other page to prevent later substitution of pages. Not strictly required by Michigan law but very strongly recommended.
5. Testator states aloud: "I have signed this document as my Last Will and Testament. I ask each of you to sign as witnesses."
6. Witness A signs the witness section, prints their name and address next to their signature.
7. Witness B signs the witness section, prints their name and address next to their signature.
8. Optional but strongly recommended: complete the self-proving affidavit in the presence of a notary (see next section).
9. Testator collects the original and stores it in a safe, findable location. Copies can go to family members and the named personal representative (executor).

Total time: 10-20 minutes. Total cost: $0-$15 (notary fee if using self-proving affidavit).

Michigan Self-Proving Affidavit (MCL 700.2504)

The single most valuable add-on to your Michigan will is a self-proving affidavit. Governed by MCL 700.2504, a self-proving affidavit is a sworn statement signed by the testator AND both witnesses in the presence of a notary at the same time as the will.

What It Does

Without a self-proving affidavit, when your will is submitted to Michigan probate after your death, one or both witnesses must be located and asked to testify (or sign a formal affidavit) confirming they witnessed you sign. If witnesses have died, moved out of state, or cannot be found, this becomes a major probate obstacle.

With a self-proving affidavit, the will is admitted to Michigan probate WITHOUT any witness testimony. The notarized affidavit itself is the proof. Saves your family time and money.

Michigan-Compliant Self-Proving Affidavit Content

MCL 700.2504(1) provides the exact statutory language. A compliant Michigan self-proving affidavit must include:

• Testator's sworn statement identifying the document as their will and confirming voluntary execution
• Both witnesses' sworn statements confirming they witnessed the signing or acknowledgment
• All three signatures
• Notary acknowledgment section with notary's official seal
• Date of the affidavit (usually same as the will signing date)

Michigan Notary Requirements

The notary must:

• Be a currently-commissioned Michigan notary public (or an out-of-state notary if the signing occurs outside Michigan)
• Verify the identity of all three signers (testator + two witnesses) with government-issued photo ID
• Watch each person sign in their physical presence
• Apply the notary seal and complete the notary certificate

Where to find a Michigan notary: banks (usually free for account holders), UPS Store ($5-$15), Michigan Secretary of State branches (free for state business), law firms, county clerks, mobile notary services ($25-$50).

Four Most Common Signing Mistakes

1. Signing Not in Each Other's Presence

The testator signs on Monday. Witness A signs on Tuesday. Witness B signs on Wednesday. Under Michigan MCL 700.2502(1), the "reasonable time after" language technically permits this, but it invites contests. Best practice: everyone signs at the same table at the same time.

2. Missing Witness Address or Printed Name

Michigan witness signatures alone are legally sufficient - but if the will is later contested and Witness A has moved, the executor may not be able to find them without an address. Always print name AND full address next to each signature.

3. Skipping Self-Proving Affidavit

Costs 5 extra minutes and $15. Saves your family from tracking down witnesses years later. Skip it and your will still works, but probate becomes slower and more expensive.

4. Using a Witness Who Later Dies or Moves Away

Not really a mistake at the time of signing, but a reason to use YOUNGER, LOCAL witnesses (or use a self-proving affidavit). Elderly neighbors who move to Florida create witness-availability headaches when the will eventually goes to probate 20 years later.

Frequently Asked Questions

Can my spouse be a witness to my Michigan will?

Legally yes, under MCL 700.2505. But if your spouse is a beneficiary, using them as a witness creates optics that invite contests. Better to use two disinterested adults.

Can my adult child be a witness?

Legally yes, but same caution - if the child is a beneficiary, use someone else. If the child is completely disinherited, they can freely witness without contest concerns.

Do Michigan will witnesses need to read the will?

No. Michigan does not require witnesses to know the contents of the will. They only need to know that the document IS a will and that the testator is signing it voluntarily. The testator can even cover the body of the will with a hand or piece of paper - only the signature area needs to be visible to witnesses.

What if one witness is a Michigan lawyer?

Attorneys can witness Michigan wills. Some attorneys prefer not to witness their own clients' wills to avoid conflicts. Attorney-drafted wills often have paralegals or receptionists as witnesses.

Can I witness a will via video call?

Michigan does NOT currently permit remote (video) witnessing of standard wills. All parties must be in the same physical location. This may change - track updates to MCL 700.2503.

Can a Michigan notary also be one of the two witnesses?

Yes, if all statutory requirements are met, a Michigan notary can serve as BOTH a witness AND the notary for the self-proving affidavit. This makes DIY signing easier - you only need to find one additional witness plus the notary.

What if I signed my will years ago and now realize I only had one witness?

Michigan does not allow retroactive "fixing" of a defective will. The document is invalid as a witnessed will (though it may still qualify as a holographic will if handwritten - see our Michigan holographic will guide). Best to re-sign a new copy with two witnesses and a self-proving affidavit.

Can Michigan witnesses be paid?

Yes. There is no prohibition on paying will witnesses. Notaries charge $10-$15 per acknowledgment as a matter of course. But paying friends and neighbors to witness looks suspicious - use free notaries at banks or nominal-fee options at UPS/FedEx.

What if a witness dies before I do?

Not a problem if your will has a self-proving affidavit - the affidavit stands in for witness testimony. If no self-proving affidavit, the executor must produce alternative proof of witnessing (e.g., another affidavit from the surviving witness or a handwriting expert). Complicated but not fatal.

Does Michigan allow "electronic wills" (signed digitally)?

Under Michigan's Electronic Transactions Act, most contracts can be signed electronically - but Michigan specifically EXCLUDES wills, trusts, and estate planning documents from electronic execution under MCL 450.837(2)(c). Michigan wills must be signed in ink on paper.

What is the difference between witnessing and notarization for a Michigan will?

Witnessing is required by MCL 700.2502(1) - two witnesses must sign to attest to seeing the testator sign. Notarization is NOT required for the will itself - it is only required for the OPTIONAL self-proving affidavit under MCL 700.2504.

Should I get my Michigan will witnessed in a lawyer's office?

Not necessary. Michigan witnessing rules apply the same way at your kitchen table as in a $500/hour lawyer's conference room. The paper is what matters.

Michigan Will Kit with Signing Instructions - $89

The CreateMIWill Michigan Will Kit ($89) includes a Michigan MCL 700.2502(1) compliant will template, a Michigan MCL 700.2504 self-proving affidavit, an execution guide with signing-ceremony script, and plain-English witness instructions. Total time to sign: 15-20 minutes at your kitchen table with two neighbors and a bank notary.