Updated September 5, 2026. Quick answer: Idaho’s elective share is not the one-third-of-everything, marriage-length figure most national pages describe. community property already passes automatically without election; a supplemental elective share exists solely for ‘quasi-community property’ (property acquired while domiciled elsewhere that would have been community property in Idaho); flat one-half (1/2) of the total augmented quasi-community property estate
What Idaho actually sets out
| What the statute sets out | What it says |
|---|---|
| Idaho Code Sec. 15-2-203 (right of election) | “one-half (1/2) of the total augmented quasi-community property estate” |
| The share and what it is measured against | community property already passes automatically without election; a supplemental elective share exists solely for ‘quasi-community property’ (property acquired while domiciled elsewhere that would have been community property in Idaho); flat one-half (1/2) of the total augmented quasi-community property estate; measured against the augmented quasi-community property estate. |
| Regime type | flat fraction, supplemental to community property |
| Can it be waived | may be waived wholly or partially, before or after marriage, by a signed written contract after fair disclosure |
| Time limit to file | within 9 months after the decedent’s death, or 6 months after the petition for probate is filed, whichever is later |
How it works in practice
- The share is measured against the augmented quasi-community property estate.
- No. This state’s formula is deliberately built to reach revocable trusts, payable-on-death accounts and other lifetime transfers, precisely so the elective share cannot be defeated by moving assets out of probate before death.
- Waiver: May be waived wholly or partially, before or after marriage, by a signed written contract after fair disclosure.
- The election has to be affirmatively filed on a deadline: within 9 months after the decedent’s death, or 6 months after the petition for probate is filed, whichever is later.
The national picture, including the Uniform Probate Code sliding-scale schedule that a minority of states actually use, is on the elective share calculator page; this page is the record for Idaho specifically, and its own numbers above should be used instead of the calculator’s national default for a Idaho estate. The one thing that reliably defeats an elective share in every state that has one is explained on whether a prenup can waive the elective share. A newly widowed reader working through the fuller list of irreversible decisions, of which this is one, can start from the surviving spouse checklist.
What this page does not settle
- This citation and figure were fetched directly from the state’s own official code site and read against the current text this session.
- A state can amend or repeal this section without the page around it changing, and a detail specific to a reader’s own situation, such as a pending divorce, a premarital agreement, or property held jointly with right of survivorship, can change which part of the statute actually applies.
- Whether a revocable trust changes the outcome in Idaho is explained above; that answer is specific to this state and does not generalize to any other one.
- Every quotation here was read against the source on September 5, 2026. Nothing on this page is legal advice, and the exact dollar or percentage amount a court awards depends on facts this page cannot know.
Whether this statute reaches a given family’s actual facts is decided by a court, not by this page. Nothing here is legal advice, and no one should sign a waiver or forgo an election on the strength of a web page.
Sources
The sources above were retrieved and read against the state text on September 5, 2026. Every quotation on this page was checked against those bytes.