To make a valid will in Idaho, you must put your wishes in writing, sign the document, and have at least two witnesses sign after witnessing your signature or acknowledgment under Idaho Code § 15-2-502. Idaho also recognizes handwritten holographic wills.
Key Takeaways
- Idaho follows the Uniform Probate Code and requires two witnesses to a standard written will.
- Holographic wills are valid in Idaho without any witnesses if the signature and material provisions are in your own handwriting.
- Idaho's self-proving affidavit statute allows the process either at signing or at any later date.
- Idaho even permits self-proved electronic wills under the same statutory framework.
What are the basic requirements to make a valid will in Idaho?
Under Idaho Code § 15-2-502, every will must be in writing, signed by the testator or by another person in the testator's presence and by the testator's direction, and signed by at least two people, each of whom witnessed either the signing or the testator's acknowledgment of the signature or of the will. Idaho does not require the witnesses to sign the exact instant you do, though signing together in one sitting remains the safest approach.
The witnesses need only see you sign or hear you acknowledge that the document is your will. They do not need to review its contents, and Idaho does not require notarization for the will itself to be valid. It is still good practice to choose witnesses who are not named as beneficiaries, since an interested witness can invite a challenge even where the law does not automatically void the will on that basis alone.
Step-by-step: how do you make a will in Idaho?
- Inventory your assets, debts, and the people or organizations you want to name as beneficiaries.
- Choose an executor to manage your estate and a guardian if you have minor children.
- Draft the will naming your executor, guardian, and beneficiaries, and state that it is your last will and testament.
- Sign the will yourself, or direct someone else to sign in your presence and at your direction.
- Have two witnesses sign after witnessing your signing or your acknowledgment of the will.
- Add a self-proving affidavit before a notary, ideally at the same sitting, under Idaho Code § 15-2-504.
- Store the original will somewhere secure and tell your executor exactly where to find it.
If you would rather not draft this language yourself, FastWill's online will builder walks through these steps and produces an Idaho-compliant will.
Does Idaho recognize handwritten (holographic) wills?
Yes. Idaho Code § 15-2-503 recognizes a holographic will as valid, whether or not witnessed, if the signature and material provisions are in the testator's own handwriting. This exception is a real safety net for someone in a genuine emergency, but it is not a substitute for planning ahead. A holographic will still has to be proved in probate court, and a typed, properly witnessed will under Idaho Code § 15-2-502 is much less likely to invite a dispute among your heirs.
What is a self-proving affidavit and do you need one in Idaho?
Under Idaho Code § 15-2-504, a will can be simultaneously executed, attested, and made self-proved through your acknowledgment and your witnesses' affidavits, made before a notary and evidenced by an official seal, either at signing or any time afterward. Idaho even extends the same self-proving framework to electronic wills. A self-proved will is presumed validly executed without requiring your witnesses to testify, which matters years later if a witness has moved, lost contact, or died before you.
DIY will vs. hiring a lawyer in Idaho
Most Idaho estates, meaning a home, some savings, retirement accounts, and everyday personal property, do not require a custom will from an attorney's office. What actually derails a homemade Idaho will is the execution ceremony in Idaho Code § 15-2-502, not the underlying language. Talk to an estate planning attorney if you run a business, have a blended family with competing claims, own property in more than one state, or need a trust for a beneficiary who cannot manage an outright inheritance. See our Idaho estate planning overview, Idaho estate planning checklist, and guide to Idaho power of attorney for what else your plan should cover.
How do you update or revoke a will in Idaho?
You can revoke an Idaho will by physically destroying it with intent to revoke, by executing a new will that revokes prior wills, or by a subsequent written instrument executed with the same formalities as a will. Marriage, divorce, a move, and the birth or adoption of a child are common reasons to update a will. Do not scribble changes onto a will you have already signed, since Idaho's holographic will rule can create confusion about which handwritten additions were meant to be part of the document and which were an unauthorized after-the-fact edit. Execute a new will or a properly signed codicil instead.
A codicil is a short amendment that changes a specific provision of an existing will without replacing the whole document, and it must be signed and witnessed the same way the original will was under Idaho Code § 15-2-502. For most people, especially after a divorce, remarriage, or a significant change in assets, executing a fresh will that expressly revokes every earlier will and codicil is cleaner than stacking amendments on top of each other. Fewer documents means fewer chances for a probate court to find a conflict between what you signed years ago and what you actually want now.
Keep your signed will somewhere your executor can find it, such as a fireproof home safe or a location you have already told them about. A will that cannot be located when you die is treated the same as if you never made one.
Frequently Asked Questions
Do I need a lawyer to make a will in Idaho?
No. Idaho does not require an attorney to draft or witness a will, but you must follow Idaho Code § 15-2-502 exactly to avoid an execution defect.
Can a beneficiary act as a witness in Idaho?
Idaho does not automatically void a will because an interested party witnessed it, but it is safer to choose two witnesses who receive nothing under the will.
Is a will made in another state valid once I move to Idaho?
Generally yes, if it was validly executed under the law of the state where it was signed or where you were domiciled at the time. Have it reviewed after your move to confirm it still fits your Idaho assets and wishes.
What happens if I die without a will in Idaho?
Idaho's intestacy statutes decide who inherits, typically your spouse and children in shares set by law rather than your own preference. See our guide on what happens if you die without a will in Idaho for the full breakdown.
Do I need to notarize my will in Idaho?
No, notarization is not required for the will itself to be valid. It is required only for the optional self-proving affidavit under Idaho Code § 15-2-504, which is still worth doing.
Want your Idaho estate handled your way instead of by default rules? Build a compliant will with FastWill's will package, and see our general guide to writing your own will for concepts that apply nationwide.
