No, a will does not need to be notarized in Illinois. To be legally valid, an Illinois will must be in writing, signed by the person making it, and witnessed by at least two credible people. Notarization is not part of those requirements, and a will without a notary stamp is fully enforceable if the signing and witnessing were done correctly. Where notarization does earn its keep is in a separate, optional step that can make probate faster and cheaper for your family later on.
What Illinois Actually Requires for a Valid Will
Illinois law sets three basic requirements. The person making the will must be at least 18 years old and of sound mind, meaning they understand what they own, who their family members are, and what the will does. The will must be in writing and signed by the person making it, or by someone else at their direction and in their presence. And two or more credible witnesses must watch the signing (or hear the person acknowledge the signature as their own) and then sign the will themselves while the person making it is present.1Justia. Illinois Code 755 ILCS 5 Art. IV – Wills
Notice what’s missing from that list: a notary. A will with perfect notarization but only one witness is invalid. A will with two proper witnesses and no notary is fine.
One small detail catches people out. The statute requires each witness to sign in the testator’s presence, but it does not require the witnesses to sign in each other’s presence. Some states impose that extra step. Illinois does not. Even so, having everyone sign together in one room is the cleanest way to eliminate any later argument about how it was done.
Why People Still Bring a Notary Into the Process
The reason a notary shows up in most Illinois estate planning offices has nothing to do with validity. It’s about probate.
After you die, a probate court needs to confirm the will is authentic before assets get distributed. Traditionally, that meant tracking down the original witnesses and bringing them into court to testify that they watched the signing and believed the person was mentally competent at the time.2Illinois General Assembly. Illinois Code 755 ILCS 5/6-4 – Admission of Will to Probate – Testimony or Affidavit of Witnesses Finding those witnesses years or decades later — after moves, illness, or death — is one of the most common causes of probate delay.
Illinois offers two ways around that problem, only one of which typically involves a notary.
The Attestation Clause (No Notary Needed)
Illinois is unusual in this regard. Under the probate code, a witness can prove a will’s validity by testifying in person, by signing an attestation clause attached to the will, or by signing an affidavit attached to the will.2Illinois General Assembly. Illinois Code 755 ILCS 5/6-4 – Admission of Will to Probate – Testimony or Affidavit of Witnesses Many states require a notarized affidavit for a will to be self-proving. Illinois accepts a properly worded attestation clause signed by the witnesses, no notary involved.
The clause typically states that the witnesses saw the person sign, that they signed in the person’s presence, and that they believed the person was of sound mind. When those elements are covered, the court can admit the will to probate based on the clause alone.
The Self-Proving Affidavit (Where Notarization Fits In)
The third option is a separate witness affidavit. An affidavit by definition is a sworn statement, and while the statute itself doesn’t explicitly require notarization, attorneys typically have these affidavits notarized to remove any question about their validity. This is what practitioners generally mean when they refer to a “self-proving affidavit” in Illinois. It can be signed at the same time as the will or later, and it must be attached to the will or to an accurate copy of it.2Illinois General Assembly. Illinois Code 755 ILCS 5/6-4 – Admission of Will to Probate – Testimony or Affidavit of Witnesses
So notarization in Illinois is best understood this way: it doesn’t do anything for the will itself, but it strengthens an optional affidavit that spares your executor from chasing down witnesses years later. The cost of a notary is minimal, and stacking a notarized affidavit on top of an attestation clause gives you a belt-and-suspenders setup that most estate planners recommend.
Witness Choice Matters More Than Notarization
Because Illinois puts witnesses at the center of will validity, choosing them well matters far more than whether a notary was involved.
Illinois has a specific rule about witnesses who are also beneficiaries. If someone who stands to inherit under your will also serves as a witness, their gift is void unless the will has enough other witnesses to satisfy the two-witness requirement without counting that person.1Justia. Illinois Code 755 ILCS 5 Art. IV – Wills Even when the gift is voided, the beneficiary-witness can still receive up to what they would have inherited under intestacy (the default distribution when there’s no will). The will itself remains valid; only that person’s inheritance is at risk.
The safe practice: pick two witnesses who receive nothing under the will and who have no financial relationship with anyone who does. A neighbor, a coworker, a friend. Illinois doesn’t define “credible witnesses” further, but in context it means competent adults who could testify in court about what they saw.
Handwritten Wills Without Witnesses Do Not Work in Illinois
A holographic will is one written entirely in the person’s own handwriting, without witnesses. Some states accept them. Illinois does not. A handwritten document expressing your wishes will not be admitted to probate unless it was signed and witnessed under the standard rules. If you write your will by hand, it still needs two witness signatures to be valid. Notarizing it changes nothing about that.
Electronic Wills Follow the Same Two-Witness Rule
Illinois recognizes electronic wills under its Electronic Wills and Remote Witnesses Act. An electronic will must meet the same core requirements as a paper one, signed by the person making it and attested by two or more credible witnesses, but electronic signatures are allowed in place of ink.3Illinois General Assembly. Illinois Code 755 ILCS 6 – Electronic Wills and Remote Witnesses Act
The Act also allows remote witnessing, where witnesses observe the signing through a live audio-video connection instead of being physically present. If someone else signs the electronic will at the person’s direction, that signer cannot be a witness, a beneficiary, or the spouse or child of a beneficiary.3Illinois General Assembly. Illinois Code 755 ILCS 6 – Electronic Wills and Remote Witnesses Act The technology and platform requirements make working with an attorney familiar with electronic wills the most reliable path if you want to go this route. Notarization still isn’t part of the validity requirements.
The Bottom Line
Skip the notary if you want, and your will is still valid in Illinois as long as it’s written, signed, and witnessed by two credible people who aren’t inheriting from it. Bring in the notary if you want the self-proving affidavit that makes probate smoother for your family later. Either way, the notary is a convenience for what comes after your death, not a requirement for the will itself.