How to Start a Private Investigation Business in Michigan (2026)

Last updated: February 25, 2026

Michigan regulates private investigators under the Professional Investigator Licensure Act (Public Act 285 of 1965), administered by LARA’s Corporations, Securities & Commercial Licensing Bureau. The requirements are substantial: you must be at least 25 years old, have 3 years of qualifying investigative experience, post a $10,000 surety bond, and pay a $750 licensing fee.

As a licensed private investigator and small business owner myself, I can tell you that the Michigan licensing process is experience-heavy but straightforward once you meet the qualifications. This guide covers every requirement, cost, and step to legally start a PI business in Michigan.

Private Investigator Requirements in Michigan at a Glance

Requirement	Agency	Cost	Timeline
LLC Formation	LARA Corporations Division	$50	5-10 business days
Federal EIN	IRS	Free	Immediate (online)
Professional Investigator License	LARA CSCL Bureau	$750	4-8 weeks after application
Surety Bond	Bonding company	$100-$300/year (for $10,000 bond)	1-3 days
Background Check	Michigan State Police / FBI	$50-$65	2-4 weeks
General Liability Insurance	Private insurer	$1,000-$2,500/year	Same day
Professional Liability (E&O)	Private insurer	$500-$1,500/year	Same day

How to Start a Private Investigation Business in Michigan (Step by Step)

Step 1: Meet the Basic Qualifications

Michigan’s Professional Investigator Licensure Act sets strict eligibility requirements:

Personal Requirements:

• U.S. citizenship required
• Minimum age: 25 years old
• Education: High school diploma or equivalent (GED)
• Good moral character: No disqualifying criminal history

Experience Requirements (3 years full-time in any of the following):

• Licensed PI in another state: 3 years lawfully engaged in the professional investigation business as a licensee in another state
• Investigative employee: 3 years working as an investigative employee for a licensed investigation agency
• Government investigator: 3 years as an investigator, detective, or special agent for a local, state, or federal government agency
• Degree: Baccalaureate or postgraduate degree in police administration, security management, investigation, law, criminal justice, or computer forensics (counts as qualifying experience)
• Investigative reporter: 3 years employed as an investigative reporter for a recognized media outlet

Disqualifying Criminal History:

You cannot have been convicted of:

• Any felony
• Misdemeanor involving dishonesty or fraud
• Unauthorized divulging or selling of information or evidence
• Impersonation of a law enforcement officer
• Illegal use of a dangerous weapon
• Two or more alcohol-related offenses
• Controlled substance offenses

Step 2: Apply for Your Professional Investigator License

Submit your application to LARA’s Corporations, Securities & Commercial Licensing Bureau:

• Application fee: $750
• License term: 3 years
• Renewal fee: $750 every 3 years
• Required documentation:
  • Completed application form (LPI-010)
  • Proof of qualifying experience (employer letters, employment records)
  • Proof of $10,000 surety bond or insurance policy
  • Fingerprints for background check
  • Passport-size photograph
• Processing time: Approximately 4-8 weeks after submission of complete application

License Types:

• Agency license: Required to operate a PI agency/business
• Branch license: Required for each additional office location
• Employee registration: PI employees must be registered with LARA

Step 3: Get Your Surety Bond

Michigan requires a $10,000 surety bond or equivalent liability insurance policy:

• Bond amount: $10,000 minimum
• Annual premium: Typically $100-$300/year (1-3% of bond value)
• Purpose: Protects the public against financial loss from the PI’s misconduct or failure to perform
• Bond must remain active for the entire license term
• Alternatively, a liability insurance policy meeting the statutory requirements can substitute for a bond

Step 4: Pass the Background Check

• Fingerprint-based criminal history check through Michigan State Police and FBI
• Cost approximately $50-$65
• LARA reviews your criminal history against the disqualifying offenses listed in the Act
• Any arrest record, even without conviction, may be reviewed

Step 5: Form Your Business Entity

Register an LLC with LARA for $50. Get a free EIN from the IRS. Your LLC name does not need to include “investigator” or “detective” but many PIs choose to for marketing purposes.

Step 6: Get Business Insurance

General Liability Insurance

• Cost: $1,000-$2,500/year for PI businesses
• Covers: Bodily injury, property damage, personal injury claims
• Typical limits: $1M per occurrence / $2M aggregate

Professional Liability (Errors & Omissions)

• Cost: $500-$1,500/year
• Covers: Claims of negligence, errors in investigation, failure to deliver promised results
• Essential for: Any PI doing work for attorneys, insurance companies, or corporate clients

Commercial Auto Insurance

Important for surveillance work. Michigan’s no-fault system results in higher rates ($1,500-$3,000/year).

Step 7: Set Up Operations

Essential Equipment:

• Professional camera with telephoto lens (surveillance)
• Video recording equipment
• GPS tracking devices (legal use only – Michigan law restricts placement)
• Laptop with secure data storage
• Database access subscriptions (public records, skip tracing)
• Reliable surveillance vehicle
• Secure filing system (digital and physical)

Firearms Considerations:

Michigan does not require PIs to be armed, but if you choose to carry a firearm:

• Concealed Pistol License (CPL): Available to Michigan residents age 21+. Apply through your county clerk. Requires an 8-hour training course and background check. Cost approximately $115.
• Michigan is a shall-issue state for concealed carry
• There is no special armed PI license in Michigan – the standard CPL applies
• Important: PIs are private citizens, not law enforcement. All state and federal firearms laws apply.

Legal Boundaries:

Michigan PIs must operate within strict legal boundaries:

• No trespassing during surveillance
• No impersonating law enforcement
• Michigan wiretapping law: Michigan is a one-party consent state for recording conversations, but federal wiretapping laws may impose additional restrictions
• GPS tracking: Cannot place tracking devices on vehicles without proper authorization
• No harassment or stalking during investigations

Cost to Start a Private Investigation Business in Michigan

Item	Cost	Notes
Michigan LLC formation	$50	Annual statement $25/year
Federal EIN	Free	Apply online at IRS.gov
Professional Investigator license	$750	Renewal $750 every 3 years
Surety bond ($10,000)	$100-$300/year	Annual premium; bond must remain active
Background check	$50-$65	Fingerprint-based state + FBI
General liability insurance	$1,000-$2,500/year	$1M/$2M recommended limits
Professional liability (E&O)	$500-$1,500/year	Essential for attorney/corporate clients
Commercial auto insurance	$1,500-$3,000/year	Michigan no-fault system
CPL (optional – if carrying firearm)	$115	Plus training course ($75-$150)
Camera and surveillance equipment	$2,000-$5,000	Professional camera, video equipment
Database subscriptions	$100-$500/month	Public records, skip tracing tools
Office space/equipment	$500-$2,000/month	Or work from home initially

Estimated total startup cost: $5,000-$8,000 (solo, home office) to $15,000-$25,000+ (with office space, full equipment, employees)

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← Back to all Michigan business guides

Frequently Asked Questions

What are the requirements to become a PI in Michigan?

You must be a U.S. citizen, at least 25 years old, with a high school diploma and 3 years of qualifying investigative experience. Qualifying experience includes working for a licensed PI agency, serving as a government investigator/detective, or holding a degree in criminal justice, law, or related fields. You also need a $10,000 surety bond and must pass a background check.

How much does a Michigan PI license cost?

The license fee is $750 for a 3-year term, with renewal at $750 every 3 years. Add the surety bond premium ($100-$300/year), background check ($50-$65), and business insurance ($1,500-$4,000/year). Total first-year licensing costs: approximately $2,500-$5,000.

Does Michigan require a PI exam?

Michigan does not require a written exam for PI licensure. The state relies on documented experience, background checks, and the application review process. This is different from states like Florida and California that require formal examinations.

Can PIs carry firearms in Michigan?

Michigan does not have a special armed PI license. PIs who wish to carry a concealed firearm must obtain a standard Concealed Pistol License (CPL) through their county clerk ($115, plus 8-hour training course). Michigan is a shall-issue state. PIs are private citizens, not law enforcement, and all standard firearms laws apply.

What experience counts toward the 3-year Michigan PI requirement?

Michigan accepts: work as an investigative employee for a licensed PI agency, service as a government investigator, detective, or special agent, being a licensed PI in another state, holding a bachelor’s or graduate degree in criminal justice/law/investigation/computer forensics, or 3 years as an investigative reporter.

Is Michigan a one-party consent state for recording?

Yes. Michigan is a one-party consent state, meaning you can legally record a conversation if at least one party (including yourself) consents. However, you cannot record a private conversation between two other people without at least one of their consent. Federal wiretapping laws may impose additional restrictions in some circumstances.