Illinois Will Requirements
A will only protects your family if it is executed correctly under Illinois law. This 2026 guide covers Illinois's witness, notary, and holographic-will requirements, explains the self-proving affidavit, and shows how VoiceWill™ can draft your Illinois will from a guided voice conversation in less than an hour.
How a will is executed in Illinois
Illinois requires two adult witnesses to validly execute a will. Witnesses must be of legal age, mentally competent, and — in most cases — disinterested (not named as beneficiaries). notarization is optional in Illinois but recommended to create a self-proving affidavit that simplifies probate.
Two witnesses required. Notarization is optional but recommended for a self-proving affidavit.
Witnesses and notarization in Illinois
Choosing the right witnesses is one of the most common mistakes Illinois residents make. A beneficiary witness can invalidate a bequest in many states. Illinois attorneys generally recommend two clearly disinterested adults sign at the same time, in the testator's presence, and in each other's presence.
A self-proving affidavit is a short notarized statement attached to the will. It is not the will itself — it allows Illinois probate courts to admit the will without calling the witnesses back to testify, which saves time and cost during probate.
- two adult witnesses required at signing
- Notarization is optional in Illinois but recommended to create a self-proving affidavit that simplifies probate
- Illinois does not accept holographic (handwritten) wills
- Witnesses should be disinterested adults
- Self-proving affidavit recommended for faster probate
What Illinois probate looks like
When a Illinois resident dies with a will, the executor files it in the probate court of the county where the decedent lived. The court validates the will, supervises the executor, and oversees distribution. Small estates may qualify for a simplified or affidavit-based process; larger or contested estates can take 6–18 months.
A living trust is the most common way Illinois families bypass probate for major assets. VoiceWill™ can draft a coordinated will and revocable trust together so nothing is missed.
Healthcare directive and power of attorney in Illinois
A will only takes effect at death. Two other documents protect you while alive: a Illinois advance healthcare directive (also called a living will or healthcare proxy) names who makes medical decisions if you cannot, and a Illinois durable power of attorney names who manages your finances during incapacity. Most Illinois estate plans need all three.
Choosing executors and guardians in Illinois
Your executor must be an adult Illinois resident or, for non-residents, generally a close relative — confirm your county's rules. Name at least one alternate. If you have minor children, your will is the place to nominate a guardian; Illinois courts give strong weight to a parent's nomination but make the final call based on the child's best interests.
Frequently asked questions about Illinois will requirements
How many witnesses does a will need in Illinois?
Illinois requires two adult witnesses who are of legal age, mentally competent, and generally not beneficiaries of the will.
Is notarization required for a Illinois will?
No — Illinois does not require notarization, but a notarized self-proving affidavit is strongly recommended to speed probate.
Are handwritten (holographic) wills accepted in Illinois?
No. Illinois does not recognize holographic wills. A will must be in writing and properly witnessed under state law.
Can I make my Illinois will online?
Yes. VoiceWill™ guides you through a voice conversation, prepares a Illinois-compliant draft, and explains exactly how to sign and witness it under Illinois law.
Does a Illinois will avoid probate?
No. A will still goes through Illinois probate. To avoid probate, Illinois residents typically pair the will with a revocable living trust.
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