To become a private investigator, you typically need at least a high school diploma and several years of related work experience, such as law enforcement, the military, claims adjusting or security work. Most states require private investigators to be licensed, with rules on age, experience and more, and most new investigators then learn through months of on-the-job training.
The experience is what gets you hired. BLS says many private detectives come from law enforcement, but plenty come from jobs you might not expect, including bill collectors, paralegals and security guards.
The details below come from the US Bureau of Labor Statistics (BLS) Occupational Outlook Handbook, read in October 2026.
Private investigators in numbers
| Measure | BLS figure |
|---|---|
| Median pay (May 2025) | $51,220 a year, $24.62 an hour |
| Lowest 10% and highest 10% | Under $36,740 and over $97,630 |
| Typical entry-level education | High school diploma or equivalent |
| Jobs in 2025 | 39,500 |
| Projected growth 2025 to 2035 | 5%, faster than average |
| Openings each year | About 3,200 on average |
Those pay figures are as of October 2026. One caveat from BLS: the wage data don't cover self-employed workers or owners of unincorporated businesses, so solo investigators aren't in that median.
How to become a private investigator, step by step
- Get a high school diploma. Some employers want a bachelor's degree, in fields such as security and protective service or business.
- Build related experience. BLS lists law enforcement, the military and federal intelligence, plus bill and account collection, claims adjusting and investigation, paralegal work and security guard roles.
- Check your state's licensing rules. Most states require a licence, and BLS says to check your state and locality for age, experience and other requirements.
- Get a driver's license if the role needs one. Much of the work is in the field.
- Learn on the job. Training often lasts several months or longer, and depends on the position.
- Consider professional certification to show competence in a particular area of investigation.
The insight: most PIs don't work for agencies
The movie version is a lone detective with an office downtown. The BLS data tell a different story. The largest employer of private detectives and investigators is retail trade, at 34% of jobs, followed by administrative and support services and then finance and insurance. In other words, a lot of investigation work is loss prevention in stores, insurance fraud and corporate cases.
| Employer | Share of jobs (2025) | Median pay (May 2025) |
|---|---|---|
| Retail trade | 34% | $41,480 |
| Administrative and support services | 18 in every 100 | $50,720 |
| Finance and insurance | 11 in every 100 | $72,740 |
| Government | 8 in every 100 | $75,810 |
| Professional, scientific and technical services | 6 in every 100 | $75,710 |
Look at the pay column. Retail roles pay the least, while finance, insurance and government investigative roles pay far more. If pay matters to you, aim your experience at insurance claims or corporate investigation.
What training covers
BLS says additional training depends on the job. Some investigators learn remote surveillance, others reconstruct accident scenes or investigate fraud, and corporate investigators may get formal training in business practices, management structure and finance-related topics.
A lot of the work today starts online, with records and background research. It's useful to know which background check services employers rely on and the laws that limit background checks, because staying inside those rules protects your licence. If you're drawn to the corporate side, see how a workplace investigation runs.
What the job is like
Work settings depend on the case. Some investigators spend time in offices researching, others work in the field on surveillance, and some work in stores watching customers. BLS says they may work outdoors or from a vehicle in all weather. Most work full time, and schedules often include early mornings, nights and weekends, especially for surveillance or when contacting people outside normal hours.
Skills that help
- Patience: BLS says surveillance can mean long periods waiting, and some investigations never reach a resolution.
- Communication: listening carefully, asking the right questions and writing reports that document everything.
- Decision-making: evaluating situations quickly, often on limited information.
- Inquisitiveness: being persistent with leads and anticipating what a person of interest will do next.
- Attention to detail: staying alert and noting information precisely.
Professional certification is optional, but BLS says it demonstrates competence in a particular area of investigation work, which helps when you're competing for corporate or insurance cases. Pick a specialism first, then the certification that matches it.
Most investigators work alone, but BLS says some work with others on surveillance or large, complex assignments. If you prefer a team, corporate and insurance roles are more likely to give you one.
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My verdict
Private investigation suits people with a background in law enforcement, the military, security or insurance who want more independence. Check your state's licensing rules first, because most states require a licence and the experience thresholds differ. Then pick your niche: insurance and corporate work pay noticeably better than retail loss prevention, and with 5% growth projected, there's steady demand for experienced investigators.
Frequently asked questions
Do you need a licence to be a private investigator?
In most states, yes. BLS says most states require private detectives and investigators to be licensed, with rules on age, experience and more.
Do you need a degree to be a private investigator?
Not always. Some employers require a high school diploma, while others want a bachelor's degree.
How much do private investigators make?
BLS reports median pay of $51,220 a year in May 2025, as of October 2026. That figure excludes self-employed investigators.
What experience do private investigators need?
BLS lists law enforcement, the military and federal intelligence, plus roles such as claims adjusters, paralegals, bill collectors and security guards.
Who employs private investigators?
Retail trade is the largest employer, with 34% of jobs in 2025, followed by administrative and support services and finance and insurance.
Can you become a private investigator without police experience?
Yes. BLS says some come from roles such as claims adjusters, paralegals, bill and account collectors or security guards, and most learn through on-the-job training.
Is private investigation a growing field?
Yes, modestly. BLS projects 5% growth from 2025 to 2035, faster than average, with about 3,200 openings a year. It isn't a huge field, so experience counts.
What hours do private investigators work?
Most work full time, with early mornings, nights and weekends common, especially during surveillance.
