Probate in Custer County, Montana: 2026 Guide

This guide is for educational purposes only and is not legal advice. Laws change frequently — verify current requirements with the Custer County probate court or an attorney.

Last updated: February 15, 2026

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Overview

Custer County is located in Montana with a population of approximately 11,964. The Montana 16th Judicial District Court handles all probate and estate matters for decedents who were domiciled in the county at the time of death.

Montana probate is governed by Montana Code Annotated (MCA) Title 72. The process begins with filing a Petition for Probate of Will and Appointment of Personal Representative to admit the will and appoint a personal representative. The court then issues Letters Testamentary for testate estates or Letters of Administration for intestate estates.

Montana offers a simplified procedure for small estates. If the value of the entire estate, less liens and encumbrances, does not exceed $50,000, successors may claim personal property via an Affidavit for Collection of Personal Property 30 days after death, without full court administration.

Personal representatives are entitled to reasonable compensation for their services. While previous statutes set specific percentage caps, current law (MCA 72-3-631) emphasizes "reasonable compensation" based on the time and effort involved, unless the will specifies otherwise.

This guide provides an informational overview of the Custer County probate process. It is not legal advice and is not a substitute for consulting a qualified attorney. Laws and local procedures may change — verify current requirements with the court.

Courthouse Information

Custer County Courthouse

Probate matters in Custer County are handled at the Custer County Courthouse.

Address: 1010 Main Street, Miles City, MT 59301

Phone: (406) 874-3326 (Clerk of District Court)

Hours: Monday through Friday, 8:00 AM to 5:00 PM

The Clerk of District Court is located in the historic Custer County Courthouse. The 16th Judicial District serves Custer, Carter, Fallon, Garfield, Powder River, Rosebud, and Treasure counties.

Parking and Access

Street parking is generally available around the courthouse in Miles City. The building is accessible to the public during business hours, with security screening procedures in place.

Filing Process

Step 1: Determine If Probate Is Necessary

Before filing, assess whether formal probate is required:

  • Small Estate Affidavit: If the estate's value (less liens) is $50,000 or less, you may be able to collect assets using an affidavit 30 days after death.
  • Non-Probate Transfers: Assets with designated beneficiaries (POD/TOD accounts, life insurance) or held in joint tenancy with right of survivorship pass directly to the beneficiary.
  • Trust administration: Assets held in a living trust generally do not require probate.

Step 2: File the Petition

If formal or informal probate is needed, file a Petition for Probate with the Custer County District Court. Include:

  • Original Last Will and Testament (if applicable)
  • Application for Informal Probate or Petition for Formal Probate
  • Certified death certificate
  • Filing fee ($100)
  • Proposed Order and Letters

Montana allows for both "Informal" (administrative, less court supervision) and "Formal" (litigated or judge-approved) probate proceedings.

Step 3: Provide Notice

After filing, you must:

  • Mail notice of the appointment to all heirs, devisees, and interested parties within 30 days of appointment.
  • Publish notice to creditors in a newspaper of general circulation in Custer County (such as the Miles City Star) once a week for three successive weeks.

Step 4: Attend the Hearing

For informal probate, a hearing is often not required; the Clerk can issue Letters upon reviewing the application. For formal probate, the court will schedule a hearing to validate the will and appoint the representative.

Step 5: Administer the Estate

After receiving Letters, the personal representative must:

  • Notify creditors and allow a 4-month period for claims to be filed from the date of first publication.
  • Inventory and appraise all estate assets within 9 months of appointment.
  • Pay valid creditor claims and estate expenses.
  • File federal and state tax returns as needed.
  • Distribute assets to beneficiaries.
  • Close the estate by filing a Sworn Statement of Personal Representative Closing Estate (informal) or a Petition for Adjudication of Intestacy and Settlement (formal).

Local Requirements

Custer County-Specific Procedures

  • Local Court Rules: Custer County is part of the 16th Judicial District. While state rules generally apply, check with the Clerk for any specific local filing preferences.
  • Publication: Notice to creditors is typically published in the Miles City Star, the county's newspaper of general circulation.
  • Filing Method: Documents are filed with the Clerk of District Court. Check with the clerk regarding the availability of e-filing versus paper filing for initial petitions.

Timeline & Fees

Filing Fees (Custer County)

  • Probate Commencement (Informal or Formal): $100.00
  • Certified copies of Letters: Approximately $2.00 per document + certification fee
  • Publication costs: Varies by newspaper, typically $100-$200
  • Recording fees: Varies for real estate deeds

Payment Methods

The court typically accepts cash, checks, or money orders. Confirm credit card acceptance and associated convenience fees directly with the Clerk's office.

Estimated Timelines

  • Simple estates (Informal): 6-9 months (minimum 6 months to clear creditor period and close)
  • Average estates: 9-18 months
  • Complex or contested estates: 18 months to 2+ years

The mandatory creditor claim period is 4 months from the first publication of notice.

Local Resources

Custer County Court Resources

  • State Bar of Montana: (406) 442-7660 — Lawyer Referral Service
  • Montana Legal Services Association: (800) 666-6899 — Civil legal aid for low-income residents
  • MontanaLawHelp.org: https://www.montanalawhelp.org

Publication

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County Forms

Affidavit for Collection of Personal Property

Used to claim personal property for estates valued at $50,000 or less.

Application for Informal Probate

Standard state form for opening an informal probate estate.

Frequently Asked Questions

Where do I file for probate in Custer County?
File with the Clerk of District Court at the Custer County Courthouse, 1010 Main Street, Miles City, MT 59301.
How much does probate cost in Custer County?
The initial filing fee is $100. Additional costs include publication (approx. $100-$200) and certified copies.
Can I avoid probate in Custer County with a small estate?
Yes, if the estate value (less liens) is $50,000 or less, you may use an Affidavit for Collection of Personal Property 30 days after death.
How long does probate take in Custer County?
Informal probate typically takes 6 to 9 months. The creditor claim period requires the estate to remain open for at least 4 months after notice publication.
Do I need an attorney for probate in Custer County?
Montana does not strictly require an attorney for informal probate, but it is highly recommended, especially for formal probate or if real estate is involved. The Clerk of Court cannot provide legal advice.

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Informational guidance only — not legal advice

Disclaimer: This article is for informational purposes only and does not constitute legal advice. Probate laws and local court rules in Custer County, Montana may change without notice. Consult a qualified attorney for advice specific to your situation. SwiftProbate is not a law firm and does not provide legal representation.