Under Idaho succession law, when someone dies without a will, their half of the community property goes entirely to the surviving spouse, and their separate property is divided according to a fixed hierarchy: the spouse takes it all if no children or parents survive, half if either children or parents survive, with the other half going to those relatives. Because Idaho is a community property state, the answer to “who inherits” almost always depends first on which category the property belongs to.
Why Community Property vs. Separate Property Comes First
Nothing else about Idaho intestate succession makes sense without this split. Property either spouse acquires during the marriage is community property, and each spouse owns half of it.1Idaho State Legislature. Idaho Code 32-906 – Community Property Defined Separate property is what a spouse brought into the marriage, plus anything received individually as a gift or inheritance, even if that gift arrived during the marriage.
When one spouse dies, only their half of the community property is part of the estate. The surviving spouse already owns the other half. Separate property, by contrast, is fully part of the estate and follows its own distribution rules. Heirs who miss this distinction usually miscalculate what they stand to receive.
Who Inherits Community Property Without a Will
The decedent’s half of every community asset passes entirely to the surviving spouse.2Justia. Idaho Code 15-2-102 – Share of the Spouse Children, parents, and other relatives receive none of it. The spouse simply consolidates ownership of what the couple built together during the marriage.
Who Inherits Separate Property Without a Will
Separate property follows a more layered rule. The surviving spouse’s share depends on which other relatives survived the decedent:2Justia. Idaho Code 15-2-102 – Share of the Spouse
- No surviving children and no surviving parents: the spouse inherits all of it.
- No children but at least one surviving parent: the spouse takes half, and the parents take the other half.
- Surviving children: the spouse takes half, and the children divide the other half.
Idaho’s statute contains no dollar threshold and no “first $100,000 to the spouse” rule. When children or parents survive, the split of separate property is straight fifty-fifty. Some Uniform Probate Code states have added dollar-amount carve-outs; Idaho has not.
Who Inherits When There Is No Surviving Spouse
If the decedent leaves no spouse, community and separate property alike pass down a single priority ladder:3Idaho State Legislature. Idaho Code 15-2-103 – Share of Heirs Other Than Surviving Spouse
- Children first. Children in the same generation share equally. If a child died before the decedent, that child’s own children take their parent’s share by representation.
- Parents next. With no children surviving, the estate goes to the decedent’s parents equally, or to the surviving parent alone.
- Siblings and their descendants. If no parents or children survive, siblings inherit, with a deceased sibling’s share passing to that sibling’s descendants.
- Grandparents and their descendants. The estate splits into two halves, one to the paternal side and one to the maternal side. If one side has no living relatives at all, the entire estate goes to the other side.
Only when no relative can be found at any level does the estate escheat to the state of Idaho, which rarely happens in practice.
Quasi-Community Property for Couples Who Moved to Idaho
Idaho recognizes a hybrid category for couples who acquired property while living in a non-community-property state and then moved here. Property that would have been community property if it had been acquired in Idaho is treated as “quasi-community property.”4Idaho State Legislature. Idaho Code 15-2-201 – Quasi-Community Property When the property-owning spouse dies, the surviving spouse takes half. The other half can be disposed of by will; if there is no will, that half also passes to the surviving spouse. All quasi-community property stays subject to the decedent’s debts.
Minimum Shares That Override Everything Else
Idaho guarantees the surviving spouse and certain children a set of minimum entitlements that come off the top of the estate. These apply even when a will leaves everything elsewhere, and they take priority over most creditor claims and bequests.
- Homestead allowance of $50,000 to the surviving spouse. If no spouse survives, minor children under 21 the decedent was supporting, along with disabled children the decedent supported, share the $50,000 equally. This is a cash right, not a claim on the family home itself.5Idaho State Legislature. Idaho Code 15-2-402 – Homestead Allowance
- Exempt property up to $10,000 in tangible personal items — furniture, vehicles, appliances, heirlooms, personal effects — above any liens. The surviving spouse claims it; if there is no spouse, the decedent’s children share this right jointly.6Idaho State Legislature. Idaho Code 15-2-403 – Exempt Property
- Family allowance for the surviving spouse and dependent children, providing a reasonable amount from the estate for maintenance while administration is under way.
These allowances exist to keep a surviving spouse or dependent children from being left with nothing while the rest of the estate is sorted out.
Assets That Don’t Follow the Intestate Rules
Several common asset types transfer outside probate entirely, regardless of what the intestate rules would say:
- Joint tenancy with right of survivorship. The surviving co-owner automatically takes the decedent’s share.
- Community property with right of survivorship. Works similarly for married couples in Idaho.
- Beneficiary designations on retirement accounts, life insurance, and payable-on-death or transfer-on-death accounts. These pass directly to the named beneficiary.
- Revocable living trusts. Trust property passes to the trust beneficiaries under the trust’s terms and bypasses probate.
If a retirement account still lists an ex-spouse as beneficiary, that person receives the money, and Idaho’s intestate rules do not override it. Keeping beneficiary designations current matters just as much as keeping a will current.
The Small Estate Affidavit
Idaho lets heirs skip formal probate when the estate is modest. If the total value of the estate subject to probate, after subtracting liens and debts, is $100,000 or less, a successor can collect the decedent’s personal property using a sworn affidavit.7Idaho State Legislature. Idaho Code 15-3-1201 – Collection of Personal Property by Affidavit
Three conditions must be met: at least 30 days have passed since the death, no probate proceeding is pending or has been granted, and the person filing is legally entitled to the property. The affidavit is presented directly to whoever holds the asset — the bank, brokerage, or employer — and that holder is required by statute to release the property. No court involvement is needed.
The Three-Year Deadline to Open Probate
Idaho gives heirs a firm window. No informal or formal probate proceeding can be started more than three years after the decedent’s death. After that, the estate can no longer be probated through the courts, which becomes a serious problem for transferring titled property such as real estate. Even when intestate rules clearly identify who should inherit, missing this deadline can leave those heirs unable to clear title.
Idaho Estate and Inheritance Tax
Idaho imposes no state estate tax, no inheritance tax, and no gift tax. Heirs do not owe the state anything on what they receive.
Federal estate tax can apply to very large estates. The federal estate tax exemption is $15,000,000 per person for 2026, so estates below that threshold owe no federal estate tax, and married couples can shelter up to $30,000,000 combined through portability of the unused exemption.8IRS. What’s New – Estate and Gift Tax For most Idaho families, neither state nor federal transfer taxes will apply to an inheritance.