Idaho Probate Inventory Requirements: The 90-Day Deadline Explained

The 90-day inventory deadline is one of the hardest pressure points in Idaho probate administration. Most personal representatives don't know it exists until they're already deep into the process — and by then, the clock has been running since the day the court issued their Letters Testamentary.

The Legal Requirement

Idaho Code § 15-3-706 requires every personal representative to prepare a comprehensive Inventory and Appraisement of the estate within 90 days of appointment (the date Letters Testamentary or Letters of Administration are issued).

The inventory must:

• List all property owned by the decedent at the date of death
• Include sufficient description to identify each item
• State the fair market value of each item as of the date of death
• Note any liens or encumbrances on the property

The statute also requires the personal representative to deliver a copy of the inventory to any interested party who requests one.

Filing the inventory with the court is technically optional under informal probate — the statute doesn't mandate court filing, only that the document be prepared and available. However, many Idaho magistrate courts expect to see it, and beneficiaries or interested parties can compel disclosure by requesting a copy. In practice, preparing a complete, court-ready inventory is the safest approach even if you don't proactively file it.

What Must Be Included in the Idaho Estate Inventory

The inventory must cover all probate assets — property that was owned solely by the decedent at death and doesn't pass automatically through a beneficiary designation, joint tenancy, or trust. This typically includes:

Real property:

• Every parcel of real estate titled in the decedent's name alone
• Address or legal description, county location
• Fair market value as of date of death (requires an appraisal or market analysis from a licensed real estate professional for significant properties)

Financial accounts:

• Checking, savings, money market accounts
• Certificates of deposit
• Investment and brokerage accounts without TOD designation
• Balance as of date of death (requires obtaining official account statements)

Vehicles and titled property:

• Cars, trucks, motorcycles, boats, recreational vehicles
• Make, model, year, VIN or serial number
• Kelley Blue Book or NADA fair market value as of date of death

Tangible personal property:

• Jewelry (requires appraisal for valuable items)
• Antiques and collectibles
• Firearms (must comply with Idaho and federal regulations when transferring)
• Household furniture and furnishings
• Art and other valuables

Business interests:

• Ownership stakes in LLCs, partnerships, corporations
• These may require a professional business valuation

Notes receivable and other financial instruments:

• Any money owed to the decedent at the time of death

What is NOT included in the probate inventory:

• Assets held in joint tenancy (those transfer automatically to the surviving joint tenant)
• Accounts with valid POD or TOD designations (those transfer directly to named beneficiaries)
• Assets in a living trust
• Life insurance proceeds with named beneficiaries
• Retirement accounts (IRA, 401(k)) with named beneficiaries

Including non-probate assets in the inventory is a common mistake that confuses the estate accounting and can create disputes about what's subject to creditor claims and court distribution.

The Valuation Challenge

The hardest part of the 90-day inventory is getting accurate valuations — particularly for real estate, business interests, and personal property.

Real estate: Fair market value as of the date of death is required. A formal appraisal by a licensed Idaho appraiser is the most defensible approach. Some personal representatives use a Comparative Market Analysis (CMA) from a real estate broker, which is less expensive but may be challenged by beneficiaries or the court. For community property, only the decedent's half of the property is a probate asset — but the full property value should still be documented.

Vehicles: Use Kelley Blue Book or NADA Guide values as of the date of death for private party sales.

Financial accounts: Obtain official statements or account confirmations showing balances as of the date of death. Banks and brokerages will provide these upon presentation of Letters Testamentary.

Personal property: Items of modest value (everyday furniture, clothing, appliances) can often be grouped and estimated at fair market value without individual appraisals. Valuable items — jewelry, antiques, art, collectibles — need professional appraisals to avoid disputes and to support accurate estate tax basis documentation.

Consequences of Missing the 90-Day Deadline

Missing the inventory deadline creates several serious problems:

Court removal: A personal representative who fails to prepare the inventory exposes themselves to removal by the court for breach of fiduciary duty. Any interested party (beneficiary, heir, creditor) can petition for the personal representative's removal.

Personal liability: If assets are later discovered that weren't inventoried, the personal representative may be personally liable for any loss to the estate resulting from the oversight — particularly if assets were misappropriated, damaged, or declined in value while the representative failed to account for them.

Creditor exposure: An inventory is the baseline for evaluating creditor claims against the estate. Without it, the personal representative has no documented basis for accepting or rejecting claims.

Beneficiary disputes: Beneficiaries who suspect a personal representative of concealing assets can petition the court for a formal accounting. The 90-day inventory requirement exists to prevent exactly this kind of dispute.

Practical Timeline for Meeting the Deadline

Working backward from the 90-day deadline:

• Days 1–30: Gather documentation — bank statements, real estate tax records, vehicle titles, brokerage account statements
• Days 20–60: Order appraisals for real estate, business interests, and significant personal property
• Days 50–80: Compile the inventory document, cross-reference with the will and beneficiary designations to confirm asset classification
• Day 85–90: Final review, notarization, and delivery to interested parties who request it

Don't wait for appraisals before starting the document. Build the inventory structure with property descriptions and placeholder values, then add confirmed values as appraisals are completed.

Ninety days goes faster than it sounds when you're simultaneously navigating grief, court filings, financial institutions, and creditor notifications.

The Idaho Probate Process Guide includes an inventory template structured specifically for Idaho probate requirements, a valuation source guide for different asset types, and the complete 90-day administration timeline so you know exactly what needs to happen and in what order.

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