Idaho Surviving Spouse Rights — Elective Share, Allowances, and the Deadline to Claim Them (2026)

✓ Verified September 2026

Idaho Surviving Spouse Rights exist because a will cannot cut a husband or wife out entirely. Every state protects a widow or widower with a share they may claim regardless of what the will says, plus allowances that come off the top before creditors and other heirs.

This guide gives the Idaho answer in plain English: what the elective share is, the deadline to claim it, whether trusts and joint accounts count, the homestead, exempt-property and family allowances, what happens when the marriage came after the will, and what forfeits the rights. All facts are from Idaho law, verified as of September 2026.

Idaho Surviving Spouse Rights: At a Glance

Here are the Idaho facts that decide most Idaho surviving spouse rights claims:

Why the Will Cannot Disinherit a Spouse in Idaho

The law treats marriage as an economic partnership. A spouse who spent decades contributing to a household is not left to the mercy of a will written in anger, under pressure, or decades ago. In separate-property states the protection is the elective share: a fixed fraction of the estate the surviving spouse may take instead of whatever the will provides.

In community property states it is built in — half of everything acquired during the marriage already belongs to the survivor and never passes under the will at all. Idaho uses one of those two systems, and the table above says which.

The right is personal to the spouse and must be claimed. Nothing happens automatically: a surviving spouse who does nothing takes what the will gives, even if that is nothing. The election has a deadline, it is filed in the probate court, and it is the single Idaho surviving spouse rights fact that a grieving spouse most often learns too late.

The Idaho Elective Share

Idaho has no classic one-third elective share. Because Idaho is a community property state, the surviving spouse’s protection is an election limited to one-half (1/2) of the augmented quasi-community property estate — property the decedent acquired while domiciled outside Idaho that would have been community property had it been acquired in Idaho (Idaho Code § 15-2-203; definitions at §§ 15-2-201, 15-2-202).

The elective amount is reduced by an allocable share of general administration expenses, the homestead allowance, exempt property, and enforceable claims (§ 15-2-203). True Idaho-source community property is not subject to election because the spouse already owns half of it outright (§ 15-2-201).

The deadline: The surviving spouse must file a petition for the elective share with the court and mail or deliver it to the personal representative within nine (9) months after the decedent’s death, or within six (6) months after the date the petition for probate is filed, whichever is later (Idaho Code § 15-2-205).

The court may extend the time for cause shown, but only if the request is made before the election period has expired (§ 15-2-205). The spouse must also give notice of the hearing to interested persons and to recipients of augmented-estate property whose interests would be adversely affected.

What counts: YES — but only as to quasi-community property. Under Idaho Code § 15-2-203 the augmented quasi-community estate includes quasi-community property the surviving spouse received from the decedent and still owns at death, plus the value of such property the surviving spouse transferred during marriage to anyone other than the decedent.

Under § 15-2-202 the spouse may require a transferee to restore quasi-community property transferred without adequate consideration and without spousal consent where the decedent kept possession, enjoyment, or the right to income; kept a power to revoke, consume, invade, or dispose of principal for the decedent’s own benefit; or held the property with another with right of survivorship.

Community property: YES. Idaho is a community property state; property acquired by either spouse during marriage other than by gift, bequest, devise, or descent is community property (Idaho Code § 32-906). Each spouse owns an undivided one-half interest, so on death the surviving spouse automatically keeps their own half and only the decedent’s half is subject to the will.

That automatic half is what replaces a percentage elective share, which is why the § 15-2-203 election reaches only quasi-community property acquired while the couple lived in a non-community-property state.

Allowances the Spouse Gets on Top of the Will

Homestead: The surviving spouse is entitled to a homestead allowance of 50000, which is exempt from and has priority over all claims against the estate (Idaho Code § 15-2-402). It is a dollar allowance, not a life estate in the residence itself. It is in addition to any share passing to the spouse by the will unless the will provides otherwise, by intestate succession, or by elective share.

If there is no surviving spouse, each of the decedent’s minor or disabled children takes an equal fraction of the allowance.

Exempt property: In addition to the homestead allowance, the surviving spouse is entitled from the estate to tangible personal property worth up to 10000 in excess of any security interests, including household furniture, automobiles, furnishings, appliances, family heirlooms, and personal effects (Idaho Code § 15-2-403). If there is no surviving spouse, the decedent’s children take the same property jointly.

If the estate lacks enough qualifying tangible property, the spouse may take other estate assets to make up the shortfall, subject to the priority rules of § 15-2-403.

Family allowance: The surviving spouse and minor children the decedent was obligated to support are entitled to a reasonable allowance in money out of the estate for maintenance during administration (Idaho Code § 15-2-404). No fixed dollar figure is set by statute; if the estate is inadequate to discharge allowed claims, the allowance may not continue longer than one (1) year.

It is payable to the surviving spouse if living, may be paid as a lump sum or in periodic installments, and is exempt from and has priority over all claims except the homestead allowance. Acting without court order, the personal representative may set a family allowance of up to 18000 as a lump sum, or up to 1500 per month for one year (§ 15-2-405).

Married After the Will Was Signed

If a testator fails to provide by will for a surviving spouse who married the testator after the will was executed, the omitted spouse receives the same share of the estate they would have received had the decedent died intestate (Idaho Code § 15-2-301).

This does not apply if it appears from the will that the omission was intentional, or if the testator provided for the spouse by a transfer outside the will and the intent that the transfer be in lieu of a testamentary provision is shown by the testator’s statements, the amount of the transfer, or other evidence. Devises abate to satisfy the share as provided in § 15-3-902.

Waiver and Disqualification in Idaho

The right of election, the homestead allowance, and exempt property — wholly or partially, and either together or separately — may be waived before or after marriage by a written contract, agreement, or waiver signed by the party waiving, after fair disclosure (Idaho Code § 15-2-208).

Unless it provides otherwise, a waiver of “all rights” in the other spouse’s property or estate is a renunciation of all benefits that would otherwise pass by intestate succession or by will, and operates as a disclaimer. The statute requires a signed writing and fair disclosure; it does not by its terms require independent counsel. Idaho’s Uniform Premarital Agreement Act, Idaho Code §§ 32-921 through 32-929, governs prenuptial agreements generally.

What forfeits the rights: A person divorced from the decedent, or whose marriage to the decedent was annulled, is not a surviving spouse unless a later marriage makes them the decedent’s spouse at death; a decree of separation that does not terminate the marital status is not a divorce for this purpose (Idaho Code § 15-2-802).

Also excluded: a person who obtained or consented to a divorce or annulment decree not recognized as valid in Idaho, unless the couple later married or lived together as spouses; a person who, after an invalid decree obtained by the decedent, went through a marriage ceremony with a third person;

and a person who was a party to a valid proceeding concluded by an order purporting to terminate all marital property rights.

A spouse who feloniously and intentionally kills the decedent forfeits all statutory benefits including the elective share and allowances (Idaho Code § 15-2-803). Idaho’s probate code does not list mere abandonment as a disqualifier.

If there is no will: With no will, the surviving spouse takes the decedent’s one-half of the community property (so all of it) plus, of the separate property, the entire estate if no issue or parent survives, or one-half if the decedent left issue or a surviving parent (Idaho Code § 15-2-102) — see the separate Idaho intestate succession page. The Idaho dying-without-a-will guide linked below covers that in full.

Other Idaho rules: Idaho’s community property system is the defining feature: there is no sliding scale by length of marriage, no dower or curtesy, and no statutory life estate in the marital home.

The election reaches quasi-community property only, so a couple who lived their whole married life in Idaho may have no elective share to claim at all, while a couple who moved to Idaho late in life may have a substantial one. Idaho also recognizes community property with right of survivorship, which passes outside probate (Idaho Code §§ 15-6-401, 15-6-402).

The right of election is personal to the surviving spouse and may not be exercised after the spouse’s death (Idaho Code § 15-2-207), and taking the elective share requires the spouse to give up conflicting will provisions under § 15-2-206.

Mistakes That Cost a Surviving Spouse in Idaho

The first mistake is waiting. The election to take the statutory share has a deadline that runs from death or from the will’s admission, and the probate court cannot extend it for a spouse who did not know. The second is assuming the will is the whole picture.

A spouse who was left “the house” may be entitled to considerably more under the Idaho surviving spouse rights rules — and may also be entitled to allowances the will never mentions.

The third mistake is signing something in the first weeks. A release, a family settlement, or a disclaimer offered by another heir can waive rights the spouse did not know they had. The last is overlooking a prenuptial agreement.

If one exists, it may have waived the elective share — but only if it met the state’s requirements for disclosure and fairness at the time, which is a question a lawyer should answer before anyone relies on it.

What to Expect When You Claim Idaho Surviving Spouse Rights

Claiming Idaho surviving spouse rights is a filing inside the probate case, not a separate lawsuit. The surviving spouse files the election and any allowance requests with the court, the personal representative calculates the estate the share is measured against, and the court resolves any dispute over what counts.

Where the will already gives the spouse more than the statutory share, the election is unnecessary and most spouses do not file one.

Two things surprise people. The first is how much depends on the calendar — the election deadline is short in some states and runs whether or not the spouse knew. The second is that the allowances are separate from the share and are paid first, ahead of creditors, which is often what keeps a surviving spouse in the home during the months the estate takes to settle.

Quick Answers: Idaho Surviving Spouse Rights

What are Idaho Surviving Spouse Rights if the will leaves the spouse nothing?

A statutory share — commonly a third to a half of the estate — plus allowances paid ahead of creditors. Idaho Surviving Spouse Rights exist precisely for this case, but they must be claimed by a filing.

How long does a spouse have to claim Idaho Surviving Spouse Rights?

A fixed period after death or after the will is admitted, set by statute. Missing it forfeits the statutory share, which is the most common way Idaho surviving spouse rights are lost.

Do Idaho Surviving Spouse Rights include assets in a trust?

In augmented-estate states, yes — trusts, joint accounts, and large gifts are added back before the share is calculated. In others, Idaho surviving spouse rights reach only the probate estate.

Official Idaho Sources & Resources

• Idaho Probate Court: https://courtselfhelp.idaho.gov/
• Idaho Elective Share Statute: https://legislature.idaho.gov/statutesrules/idstat/title15/t15ch2/sect15-2-203/
• Internal Revenue Service — Estate Tax: irs.gov
• Cornell Legal Information Institute: law.cornell.edu/wex

This Idaho guide was last verified against official sources in September 2026. Laws change — verify with your state court or a licensed attorney.

More Idaho Estate Guides

• Contest a Will in Idaho
• Idaho Medicaid Estate Recovery
• Dying Without a Will in Idaho
• Idaho Probate Process
• When a Spouse Died With Debt
• All State Guides

Disclaimer: This guide is informational only and is not legal or tax advice. Estate, probate, and tax laws change and vary by state and county. Verify current rules and dollar figures with your state’s court, statute, or a licensed attorney or tax professional before acting. For urgent matters like an active probate or a tax deadline, consult a licensed professional in your state right away.