Private Investigator / Missouri
2026 data Missouri board official source

Missouri Private Investigator License Requirements

Compiled from official source data by PlainCredential

What the state board actually requires: fees, renewal cycle, and requirements from official records.

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Conducts investigations for private clients and attorneys.

What the Missouri data shows for Private Investigators

Missouri sets the entry bar for private investigators at 2,054 training hours and a passing score on State Private Investigator Exam, with 3 years of supervised work experience expected. A background check is a standard part of the process, and applicants must be 18 or older. The credential is administered under Missouri's licensing regime, which classifies the training track as "Training or Experience".

Upfront cost is $168, with renewal running $151 on a 2-year cycle. Missouri doesn't require continuing education for this license, so upkeep costs stay confined to the renewal fee itself.

Reciprocity for this profession works like this: Not typically reciprocal — state-specific.

Licensing Requirements in Missouri

Education / Training Hours
Training or Experience
2,054 hours
Exam Requirement
State Private Investigator Exam
Required
Initial License Fee
$168
Renewal Fee
$151
Renewal Cycle
Every 2 years
Continuing Education
Not required
Criminal History Check
Required
Minimum Age
18 years
Work Experience Required
3 years

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Compare all states for Private Investigator All Missouri licenses
Data sources: NCSL Occupational Licensing Database, Institute for Justice, state licensing boards. Verify current requirements with Missouri licensing authorities before making career decisions.

Frequently Asked Questions

What license do I need for Private Investigator in Missouri? ▼
In Missouri, the license path calls for 2054 education/training hours, a passing score on State Private Investigator Exam, and a $168 initial fee. A criminal background check is required as well.
How do I get certified as a Private Investigator in Missouri? ▼
Certification as a private investigator in Missouri means clearing the state's checklist: 2054 hours of education plus 3 years of work experience, and a passing exam score. The Missouri licensing board can confirm the current details.
Can I transfer my Private Investigator license to Missouri from another state? ▼
Reciprocity for private investigators nationally works like this: Not typically reciprocal — state-specific. Beyond that baseline, interstate compacts exist for many professions and may smooth a transfer into Missouri. Verify the specifics with the Missouri licensing board.
Does Missouri require a background check for Private Investigator licensing? ▼
A criminal background check is mandatory for private investigator licensing in Missouri. The state licensing board sets the disqualifying-offense criteria and review process.

Related Guides

Source: NCSL Occupational Licensing Database, Institute for Justice License to Work (3rd Ed.), state licensing board websites NCSL Occupational Licensing Database, Institute for Justice License to Work (3rd Ed.), state licensing board websites

Read our methodology - how this data is sourced, computed, and verified.