Michigan Private Investigator License Requirements

Michigan’s Professional Investigator Licensure Act (Act 285 of 1965) requires 3 years of full-time experience and age 25, and the application fee is $750.

Michigan PI license at a glance

Item	Detail
Regulator	Michigan LARA, Corporations, Securities and Commercial Licensing
Law	Professional Investigator Licensure Act, Act 285 of 1965
Age	25, U.S. citizen, high school or equivalent
Experience	3 years full-time as a licensed or investigative employee in another state, a government investigator, a graduate of a qualifying degree program, or a full-time in-house investigator
Bond/insurance	$10,000 bond, or an insurance policy ($10,000 property damage; $100,000 one person; $200,000 more than one person)
Fees	Application $750; renewal $300; relicensure $750
Term	3 years (MCL 338.829); LARA lists no late renewal period
Branch office	$125 for application, renewal and relicensure
Disqualifiers	Certain convictions; dishonorable military discharge
Business license	A business needs a manager who meets the same qualifications

What’s different here: the branch-office fee is a flat $125 for every transaction.

Michigan PI license FAQ

How much is the application?

$750, with a $300 renewal.

What does a branch office cost?

$125.

Verified against: LARA Licensing Requirements and Licensing Fees pages and MCL 338.823, 338.826, 338.829, 338.830 and 15.235. Last verified October 23, 2026.

Who regulates private investigators in Michigan

LARA licenses professional investigators under 1965 PA 285, the Professional Investigator Licensure Act (MCL 338.821 and following). Section 338.826 sets the qualifications for the sole or principal license holder; for a firm, the manager must also qualify.

Michigan PI license types

License or credential	Who it is for
Professional investigator license	Sole proprietors or the principal of a firm
Branch office or subagency license	Additional business locations
Investigative employees	Staff working for a licensee

How to get licensed in Michigan: step by step

1. Confirm you meet the age, citizenship, education, background and experience or degree requirements.
2. Document your experience or provide degree transcripts.
3. Complete LARA’s application and fingerprint background check.
4. Post the $10,000 bond or insurance policy.
5. Pay the $150 processing fee and $600 license fee.
6. Add $125 for each branch office license.

Carrying a firearm as a Michigan investigator

The professional investigator license doesn’t by itself authorize carrying a firearm. Michigan’s concealed pistol licensing laws apply. Check with LARA and get legal advice before carrying on duty.

What a private investigator in Michigan can and can’t do

A PI license is a business license, not police authority. In Michigan, as everywhere in the U.S., private investigators generally cannot:

• Impersonate law enforcement or claim official authority.
• Trespass on private property to watch or photograph someone.
• Obtain bank, phone or other protected records by pretexting, which federal law prohibits.
• Hack accounts, read someone else’s email or install spyware.
• Place a tracking device on a vehicle where state law forbids it.
• Detain or arrest anyone beyond the citizen’s arrest rights every person has.

On recording, Michigan is not on the list of all-party consent states in a 2024 legal summary by the law firm Kilpatrick, which generally means one party to a conversation can record it. That does not allow recording conversations you are not part of, and other privacy laws still apply.

Michigan qualifications in the statute

MCL 338.826 requires the license holder to be at least 25, a U.S. citizen, and to have a high school education or equivalent. It also requires at least 3 years of full-time work in a qualifying role: licensed or registered investigation work in another state, investigative work for a licensed Michigan agency, government investigative, intelligence or law enforcement work, or approved full-time in-house or investigative reporting work. A baccalaureate or postgraduate degree from an accredited institution in police administration or a related field such as security management, investigation, law, criminal justice or computer forensics can substitute for the experience.

The disqualifiers are felony convictions; misdemeanor convictions for dishonesty or fraud, unauthorized divulging or selling of information, impersonating a law enforcement officer, illegal use of a dangerous weapon, two or more alcohol-related offenses, controlled substance violations or assault; and a dishonorable military discharge. For a firm, the sole or principal license holder must meet these qualifications, and for an entity doing business in Michigan the manager must.

Michigan bond or insurance, term and renewal

MCL 338.829 requires a $10,000 bond approved by the department. Instead of a bond, you may furnish a policy from a state-authorized insurer that names you and the state as co-insureds and provides $10,000 for property damage, $100,000 for injury or death of one person and $200,000 for injury or death of more than one person. The license is valid for 3 years. LARA lists renewal at $300 every 3 years, at the end of the month of issuance, and states that the license has no late renewal period. A lapsed license goes through relicensure, listed at $750.

Michigan penalties, discipline and public records

Under MCL 338.823, acting as a professional investigator for hire, fee or reward without a license, or advertising as one, can bring a court injunction and civil fines of up to $25,000. The violation is also a felony punishable by up to 4 years in prison, a fine of up to $5,000, or both.

MCL 338.830 lets LARA suspend or revoke a license for grounds that include false statements on an application, violating the act, convictions involving dishonesty, fraud or unauthorized divulging of information, impersonating a law enforcement officer, and illegally using, carrying or possessing a dangerous weapon. After notice of suspension or revocation you must surrender your license and identification card within 24 hours, and failing to do so is a misdemeanor.

For public records, Michigan’s Freedom of Information Act requires a response within 5 business days, extendable once by no more than 10 business days with a written notice (MCL 15.235).

Building a career as a Michigan investigator

Knowing the rules in Michigan is only the first step. Our guide to becoming a private investigator covers what comes after: building qualifying experience, choosing a niche, a realistic first year, writing reports clients trust, and the most common reasons license applications get delayed. For earnings, see our private investigator salary guide.

Starter gear. A practical starting point for surveillance work is a long-zoom camera such as the Nikon Coolpix P1000 and a pair of binoculars like the Vortex Diamondback HD 10×42. Our private investigator equipment list covers the rest of a starter kit.

Frequently asked questions

Do I need a license to be a private investigator in Michigan?

Yes. Michigan requires a professional investigator license from LARA.

How long does it take to become a PI in Michigan?

With a relevant bachelor’s degree, you may qualify without the three years of experience. Otherwise, plan on three years of full-time qualifying work first.

Can a degree replace experience for a Michigan PI license?

Yes. A bachelor’s or graduate degree in a relevant field, such as criminal justice or investigation, is an alternative to the three-year experience requirement.

What happens if a Michigan PI license lapses?

LARA states the license has no late renewal period, so a lapsed license goes through relicensure, listed at $750.

Is it illegal to work as a Michigan PI without a license?

Yes. Acting as a professional investigator for hire, fee or reward without a license is a felony punishable by up to 4 years in prison, a fine of up to $5,000, or both (MCL 338.823).