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Private Investigator
Total cost: $400 | Training: 20 hours
Governing Authority
Illinois Department of Financial and Professional Regulation (IDFPR)
Official website →Yes
License Required?
3 yrs
Experience (Years)
Yes
Exam Required?
$400
Total Initial Fees
$10,000
Bond Required?
Available
Armed Endorsement
Get the Illinois Private Investigator Roadmap — every step, fee, and deadline mapped out. — every step mapped out.
Get the Roadmap — $20You must be at least 21 years old. Illinois requires state-level licensure for private investigators.
Illinois requires 3 years of investigative experience. 3 yrs investigative exp AND 20 hrs PI training. Must first get PERC (Permanent Employee Registration Card). Law enforcement equivalency: 3 years law enforcement experience qualifies. Military equivalency: Military investigative experience may qualify.
20 hrs PI training required. Bachelor's degree in law enforcement/CJ may substitute for 1 year exp.. Complete 20 hours of required training.
Submit to a fingerprint-based criminal background check. Disqualifying offenses include: Felony conviction, Certain misdemeanors involving dishonesty.
Pass the Illinois private investigator licensing exam. Administered by: IDFPR (state-administered). Passing score: 70%. Topics: Illinois PI Act (225 ILCS 447), Investigation techniques, Ethics, Illinois law.
Submit your application to the Illinois Department of Financial and Professional Regulation (IDFPR). Application fee: $175. License fee: $175. Total initial fees: $400.
Renew your license every 3 years. 8 CE hours required. Renewal fee: $100.
Available License Categories
VerifiedIllinois requires state-level licensure for private investigators.
Private Investigator
Individual PI license
Required Experience
Verified3 years
Years of Experience
Details
3 yrs investigative exp AND 20 hrs PI training. Must first get PERC (Permanent Employee Registration Card).
Law Enforcement Equivalency
3 years law enforcement experience qualifies
Military Equivalency
Military investigative experience may qualify
Private investigator experience requirements often include work in law enforcement, military intelligence, legal investigations, or supervised work under a licensed PI.
Exam Requirements
VerifiedRequired
State Exam
70%
Passing Score
Exam Provider
IDFPR (state-administered)
Exam Topics
Retake Policy
May retake after 30 days
Overall licensing difficulty: 7/100
Study recommendation: 1–2 weeks of focused review is usually sufficient
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Minimum Age
21 years old
Background Check
VerifiedRequired
Criminal Check
Required
Fingerprinting
Required
Moral Character
Disqualifying Offenses
Surety Bond
VerifiedRequired
Bond
$10,000
Bond Amount
Insurance
VerifiedRequired
General Liability
$1,000,000
Not Required
Errors & Omissions
Not sure if you need a private investigator license? Check whether your state requires one.
| Fee | Amount |
|---|---|
Application Fee | $175 |
Exam Fee | $50 |
License Fee | $175 |
Renewal Fee | $100 |
Total Initial Fees | $400 |
Use our licensing cost calculator to estimate your total investment including education and exam fees.
Calculate your licensing ROI →
See how quickly your license investment pays for itself.
Renewal & CE Requirements
Verified3 years
Renewal Period
8 hrs
CE Hours Required
CE Topics
Renewal Fee
$100
Regulatory Board
Private investigator licenses must be renewed on schedule. Some states require continuing education covering legal updates, ethics, and investigative techniques.
Out-of-State Reciprocity
VerifiedDoes Not Accept Out-of-State Credentials
Transfer Details
Illinois does not have formal reciprocity
Additional Requirements for Transfer
Private investigator license reciprocity varies by state. Some states offer endorsement for experienced PIs, while others require passing the state exam regardless of prior credentials.
Moving to another state? Use our Transfer Tool to see what you need →
Compare Illinois with other states →
See how requirements, costs, and timelines differ across all 50 states.
Firearm Carry Endorsement
VerifiedAvailable
Armed Endorsement
Required
Firearm Permit
20 hrs
Additional Training
Firearm Qualification
Must complete 20-hour firearms training course
Requalification Period
Annually
Armed endorsements typically require additional background checks, firearm training, and periodic requalification at an approved range.
Illinois requires a PERC (Permanent Employee Registration Card) before applying for a PI license, has a dual requirement of 3 years experience plus 20 hours PI training, $1,000,000 in liability insurance (one of the highest in the US), a 3-year renewal cycle, and annual CE (8 hrs/year).
Illinois has a 3-year license renewal cycle, longer than most states.
Illinois requires $1,000,000 in liability insurance, among the highest.
The IDFPR administers the exam.
There is no interstate compact for private investigators.
Must first get PERC (Permanent Employee Registration Card).
Dual exp + training requirement (3 yrs + 20 hrs).
Annual CE required (8 hrs/year).
Private Investigator requirements in nearby states
Other professional licenses in Illinois
See how Illinois compares: Private Investigator License Fees by State — Cheapest to Most Expensive →
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Private Investigator Schools in Illinois
Compare approved training programs, costs, and requirements.
Moving to Illinois? Use our free Transfer Tool to see what you need →
Already licensed elsewhere? See how to transfer your Private Investigator license to Illinois →
Transfer your Private Investigator license from Illinois to: Indiana → | Iowa → | Kentucky → | Missouri → | Wisconsin →
Illinois requires a state-level PI license. 3 years of experience are required. All licensing is managed through the Illinois Department of Financial and Professional Regulation (IDFPR).
Requirements vary by state and may change. Always verify current requirements with your state licensing authority.