Idaho Probate: A Step-by-Step Guide

By Ronald W. Brilliant, Attorney at Law · Licensed in Idaho, Nevada & California · Last reviewed: September 2026 against Idaho Code Title 15, Chapter 3

When someone dies owning property in Idaho, probate is the court process that confirms who has authority to act for the estate, pays the decedent’s debts, and transfers what is left to the right people. Idaho follows the Uniform Probate Code, found in Title 15 of the Idaho Code. Compared with many states, Idaho probate is flexible: most estates are handled with little court involvement. But the process still has firm deadlines and real personal responsibilities for the person in charge.

This page gives you the big picture and the key deadlines. Each major stage has its own detailed page, with citations to the sections of Idaho Code Title 15, Chapter 3 that govern it.

Idaho Probate Topics

Small Estates and the Small Estate Affidavit: collecting property without probate when the estate is $100,000 or less, the surviving-spouse decree, and summary administration.
Informal vs. Formal Probate: how to open probate, what the registrar and the judge each do, supervised administration, and special administrators.
Personal Representative Duties and Powers: who serves, bond, the step-by-step duties, powers over estate property, conflicts of interest, compensation, and removal.
Creditor Claims: notice to creditors, claim deadlines, allowing and disallowing claims, payment priority, and personal liability.
Closing an Estate and Distributing Assets: distribution in kind, abatement, closing by sworn statement or court order, and time limits after closing.

Key Idaho Probate Deadlines at a Glance

Step	Timing	Idaho Code
Small estate affidavit may be used	30 days after death	§ 15-3-1201
Earliest informal probate of a will	5 days after death	§ 15-3-302
Earliest informal appointment of a personal representative	120 hours after death (30 days if the decedent was a nonresident, with exceptions)	§ 15-3-307
Creditors may seek appointment	45 days after death	§ 15-3-203
Personal representative notifies heirs and devisees	Within 30 days after appointment	§ 15-3-705
Inventory prepared	Within 3 months after appointment	§ 15-3-706
Creditors’ claims deadline (published notice)	4 months after first publication	§ 15-3-801(a)
Creditors’ claims deadline (mailed notice)	Later of 4 months after publication or 60 days after mailing	§ 15-3-801(b)
Lawsuit on a disallowed claim	60 days after notice of disallowance	§ 15-3-806
Objection to a proposed distribution in kind	30 days after the proposal is mailed or delivered	§ 15-3-906(b)
Earliest closing by sworn statement	6 months after appointment	§ 15-3-1003
Outer limit to open probate	3 years after death (limited exceptions)	§ 15-3-108
Outer limit on most unpresented creditor claims	3 years after death	§ 15-3-803

Do You Need Probate at All?

Not every Idaho estate must go through a full probate. Before opening a case, sort the decedent’s assets into two groups:

Non-probate assets pass automatically: property held in a living trust, jointly owned property with survivorship rights, and accounts or policies with a named beneficiary (life insurance, retirement accounts, payable-on-death and transfer-on-death accounts).
Probate assets are those titled in the decedent’s name alone with no beneficiary designation. These are what probate transfers.

Idaho law requires a will to be probated before it can be used to prove the transfer of property or to appoint an executor, with narrow exceptions (§ 15-3-102). If the probate estate is worth $100,000 or less, or the surviving spouse is the only heir or beneficiary, a shortcut may be available. See Idaho small estates and the small estate affidavit.

How Idaho Probate Works: The Big Picture

Open the estate. File an application with the registrar (informal probate) or a petition with the court (formal probate) in the proper county. Compare informal and formal probate.
Appoint the personal representative. The person with priority accepts the appointment under oath and receives letters. Who serves and what they must do.
Notify, collect, and inventory. Tell the heirs and devisees about the appointment within 30 days, take control of the assets, and prepare an inventory within 3 months.
Handle creditors. Give notice to creditors, then allow or disallow claims and pay them in the statutory order. Creditor claim rules and deadlines.
Distribute and close. Distribute what remains and close the estate by sworn statement or court order. Closing an Idaho estate.

The Three-Year Deadline to Open Probate

In general, no informal or formal probate or appointment proceeding may be started more than three years after the death (§ 15-3-108). The limited exceptions cover situations such as a missing person whose death is later established, and a will that was already probated in the decedent’s home state. A challenge to an informally probated will may be brought within the later of 12 months after the informal probate or three years after the death (§ 15-3-108(3)). Proceedings to construe a probated will or determine heirs, and small-estate procedures, are not subject to the three-year limit.

Separately, a lawsuit the decedent could have brought is not cut off by a statute of limitations sooner than four months after death (§ 15-3-109).

Where to File

The first probate proceeding is filed in the county where the decedent was domiciled at death. If the decedent lived outside Idaho, it may be filed in any Idaho county where the decedent owned property (§ 15-3-201). Later proceedings stay in that county unless transferred. Probate in Idaho is handled in the magistrate division of the district court.

Filing a Demand for Notice

Anyone with a financial or property interest in the estate can file a demand for notice at any time after the death (§ 15-3-204). Once it is filed, no order or filing covered by the demand may be made without notice to the person who filed it. This is an important protective step for family members who are concerned about how an estate will be handled.

Community Property in Idaho Probate

Idaho is a community property state. When a married person dies, the decedent’s separate property and the decedent’s one-half share of the community property pass under the will, or by intestacy if there is no will. Without a will, the decedent’s share of community property passes to the surviving spouse. Community property under the decedent’s management and control is subject to the decedent’s debts and to administration (§ 15-3-101). When the entire estate is community property and there is no will, the surviving spouse can apply for an informal statement that the spouse is the sole heir (§ 15-3-301). Community debts are charged to community property and separate debts to separate property (§ 15-3-902(c)).

Settling Disagreements Without a Lawsuit

Family Settlement Agreements

Idaho lets the heirs and beneficiaries agree among themselves, in a written contract signed by everyone affected, to change the shares they would otherwise receive under the will or intestacy law. The personal representative must follow the agreement, subject to paying creditors, taxes, and administration costs and protecting anyone who is not a party (§ 15-3-912).

Court-Approved Compromises

When a dispute involves the validity or meaning of a will, or the rights of people who cannot sign for themselves, such as minors, unborn or unknown beneficiaries, or beneficiaries of a trust, the parties can put their compromise in writing and ask the court to approve it. After notice, the court approves the agreement if the dispute is in good faith and the effect on represented persons is just and reasonable. An approved compromise binds everyone, including those who could not be located, although it cannot impair the rights of creditors or taxing authorities who are not parties (§§ 15-3-1101, 15-3-1102).

When Problems Arise

Interested persons can demand bond, ask the court to restrain a personal representative, or petition for removal (see personal representative duties). A will can be challenged through a formal testacy proceeding, where the contestant must prove the ground for the challenge (§ 15-3-407), and a no-contest clause is unenforceable if there was probable cause for the challenge (§ 15-3-905). For disputes, see my Idaho probate and estate litigation guide.

How I Can Help

I guide personal representatives through every stage of Idaho probate, from choosing between informal and formal proceedings to handling creditors and closing the estate, and I represent heirs and beneficiaries who need to protect their interests. Because I also litigate estate disputes, I handle administration with an eye toward preventing the problems that lead families to court. Request a consultation to discuss the estate you are dealing with.

This page provides general information about Idaho probate law, based on Idaho Code Title 15, Chapter 3 as of 2026, and is not legal advice. Other chapters of the Idaho Code, court rules, and case law also affect probate matters. Every estate is different; consult an attorney about your situation. Reading this page does not create an attorney-client relationship.