Will Requirements in Idaho
An Idaho will must be signed by the testator and at least two witnesses, can be made self-proved, and a holographic will is valid if the signature and material provisions are in the testator's handwriting.
Last checked . General information, not legal advice.
Idaho at a glance
- Witnesses
- 2 witnesses
- Self-proving affidavit
- Allowed
- Handwritten (holographic) wills
- Recognized
The rules in Idaho
How many witnesses does a will need in Idaho?
A will in Idaho must be signed in front of two witnesses, who sign it too.
Can a will be self-proved in Idaho?
Yes. Idaho allows a self-proving affidavit, which lets a court accept the will without calling the witnesses to testify.
Is a handwritten will valid in Idaho?
Yes. Idaho recognizes handwritten (holographic) wills that meet its requirements.
Where do the Idaho rules for wills come from?
They come from Idaho Code 15-2-502 (Execution), Idaho Code 15-2-503 (Holographic will) and Idaho Code 15-2-504 (Self-proved will). We last checked them in October 2026. Laws change, so check the current statute before you rely on it.
How Idaho compares
Idaho is one of 27 jurisdictions that recognize handwritten wills.
What this means in practice
Sign the will in front of all the witnesses at the same time and have them sign right after you. Many people choose adult witnesses who receive nothing under the will, which avoids questions later.
Keep the signed original somewhere safe and tell your executor where it is. A copy is usually not enough to probate a will.
Changing a will later takes the same formalities: sign a codicil or a new will with witnesses, rather than writing changes on the original.
General information, not legal advice. Laws change, and cities can add their own rules, so check the current statute before you rely on it.