Montana Private Investigators License Requirements

How do I become a licensed Private Investigator in the State of Montana?

The Montana Board of Private Security licenses many security related occupations, including firearms instructor, process server, security alarm installer, private security guard and private investigator. The Board requires that applicants for private investigator be:

  • 21 years of age or older,
  • A U.S. citizen,
  • Pass an FBI and Montana Department of Justice criminal fingerprint background check, and
  • Have a high school diploma.

You may apply for either Armed Private Investigator or Unarmed Private Investigator. You complete the Application for Private Investigator, which includes a list of character references, a passport photo and a weapon endorsement (if applying for armed investigator). The application must be signed in front of a Notary Public, who verifies that you are who you say you are. Deliver the application to:

Montana Board of Private Security
301 South Park
P.O. Box 200513
Helena, MT 59620-0513
Contact by phone: (406) 444-5773
Fax #:  (406) 841-2309

The Board will notify you within 30 days whether you have been approved to sit for the Private Investigator’s Examination. You must score a minimum of 70% on the exam to pass. You can find all these instructions, plus information on how to obtain your fingerprint background check on the application. Follow the link below to download the application in pdf format.

How much does it cost to get licensed as a private investigator in Montana?

Private Investigator Application Fee – $225.00

Exam Fee – $20 for unarmed PI and $50 for armed PI

Renewal Fee – $150.00

How long is a Montana Private Investigator’s License valid?

Your Montana PI License is good for one year. Renew it every year between January 1, and March 1. You may renew you license online or by mail. The Board will send you a notice reminding you to renew at the first of the year.

Are there continuing education requirements in Montana?


Does the Montana Board of Private Security recognize other state PI licenses?

There is no reciprocity in Montana regarding licensed private investigators.
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Whether you want to form a corporation or a limited liability company, we can file all your documents for just $100. If you prefer to file on your own, you will find all the forms and information you need in your online account. All you have to do is go to the bottom of the page and click on “Sign Up” and you can get enrolled for registered agent service with All Day $49 Montana Registered Agent LLC.

Montana Board of Private Security forms

Montana online renewal