ID · Will Requirements
Will Requirements in Idaho (2026)
A will in Idaho requires 2 witnesses and does not require notarization. You must be at least 18 years old and of sound mind. Idaho accepts handwritten (holographic) wills, and electronic wills are not valid here. A self-proving affidavit is available: your witnesses sign a sworn statement before a notary, and the will can then be admitted to probate without them appearing in court. Will execution is governed by Idaho Code §15-2-502.
Here's what Idaho says you need to make your last wishes actually count. Spoiler: it's not as bad as you think.
What does a valid will in Idaho require?
| Requirement | Idaho rule |
|---|---|
| Witnesses required | 2 |
| Notarization | Not required |
| Minimum age | 18 years old |
| Handwritten (holographic) wills | Recognized |
| Electronic wills | Not recognized |
| Self-proving affidavit | Available |
| Governing statute | Idaho Code §15-2-502 |
| Probate threshold | $100,000 |
| Property system | Community property |
| State estate tax | No |
| State inheritance tax | No |
How do you make a will legally valid in Idaho?
- Be at least 18 and of sound mind.
- Put it in writing and sign it yourself.
- Have 2 witnesses watch you sign, then have them sign the will too. Don't pick someone who inherits under it.
- A notary isn't required in Idaho, but one is worth finding anyway.
- Attach a self-proving affidavit so your witnesses never have to show up in probate court.
So you’ve decided to finally write a will in Idaho. Congratulations on acknowledging your own mortality. Most people can’t even manage that. Here’s what ID law requires to make sure your last wishes actually hold up in court instead of becoming an expensive piece of creative writing.
The basic requirements
Idaho requires 2 witnesses to make your will valid. Good news: Idaho doesn’t require a notary for your will, though getting one makes it self-proving and saves your executor a headache later. You must be at least 18 years old and of sound mind, though if you’ve been putting this off for years, the “sound mind” part is debatable.
Idaho supports self-proving affidavits, which means if you get your witnesses to sign a sworn statement with a notary, they won’t have to show up in court later to confirm they watched you sign. Future-you’s executor will thank present-you.
Handwritten and electronic wills
Idaho does accept holographic (handwritten) wills, so technically you could scribble your wishes on a napkin. We don’t recommend it, but you do you. Electronic wills aren’t recognized in Idaho yet, so you’ll need actual paper like it’s 1995.
What Idaho law says about your stuff
As a community property state, your spouse already owns half of everything acquired during the marriage. Your will covers your half and any separate property. Under Idaho Code §15-2-502, if you die without a will in Idaho, your assets get distributed according to intestacy laws, basically, the state’s default settings for dead people. These defaults rarely match what anyone actually wants.
The bottom line
A valid will in Idaho isn’t complicated, but it does need to follow the rules. 2 witnesses, your signature, and a clear head. Skip any of these and you might as well not bother, your family will be stuck in probate court arguing about who gets the good china while lawyers bill $300 an hour to watch.
Special note for Idaho: Community property state
How much does a will cost in Idaho?
An attorney in Idaho averages $800 (range $500-1500). Killswitch charges $69, once, with no subscription.
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What else do people ask about wills in Idaho?
How many witnesses do I need for a will in Idaho?
Idaho requires 2 witnesses for a valid will. They need to be competent adults who watch you sign and then sign the will themselves. Pro tip: don't pick someone who's inheriting, that's a conflict of interest that could invalidate their share.
Does Idaho require a notary for wills?
No, Idaho doesn't require a notary for your will to be valid. However, getting a notarized self-proving affidavit means your witnesses won't have to testify in court later, worth the extra step.
Are handwritten wills valid in Idaho?
Yes, Idaho recognizes holographic (handwritten) wills. They still need to be entirely in your handwriting and signed by you. No witnesses technically required for holographic wills, but a typed and witnessed will is much harder to contest.
What is the minimum age to make a will in Idaho?
You must be at least 18 years old to make a will in Idaho. If you're 18 and already thinking about your will, you're either incredibly responsible or having a really rough week.
What other Idaho documents do you need?
Do you need a Idaho healthcare directive?
Idaho requires 2 witnesses for healthcare directives. No notary required.
Do you need a Idaho power of attorney?
Idaho POAs are durable by default. Notarization required.
What does estate planning in Idaho cover?
Everything ID residents need to know about estate planning, without the lawyer-speak or the $800 attorney bill.
How do the rules compare in nearby states?
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Look, we're not lawyers (we're way more fun at parties). This is educational content about Idaho laws, not legal advice. If your situation is complicated (and let's be honest, whose isn't), talk to an actual attorney. We just make the paperwork less painful.
