How Much Does a Female Private Investigator Cost?
By David Schassler, licensed New York private investigator. . Updated
Rates are set by each agency, and Shleuth does not set them. Most investigators bill by the hour plus mileage and costs, and many ask for a retainer. Hours, travel and urgency drive the total, so ask for a written estimate.
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Cost is the first question most people ask. The plain answer is that it depends, and it differs by agency and state. This guide shows what moves the price and how to compare quotes without guessing.
Who Sets the Price
Each agency sets its own rates. A woman owned agency does not cost more or less because of who owns it. Shleuth is a directory and does not set or collect rates. Ask each agency directly and compare in writing.
How Agencies Bill
- By the hour for open ended work, like surveillance.
- A flat fee for defined tasks, like a records search.
- Mileage and costs on top, like database or records fees.
- A retainer up front that hours draw against.
One Agency's Posted Rates
Few agencies publish prices. New York Intelligence Agency does. On October 17, 2026 its cost page listed surveillance at $240 an hour with one investigator or $280 an hour with two, a 5 hour daily minimum and a $100 daily vehicle charge. That makes a standard day $1,300, or $1,500 with two. A background check was $400 flat, and free with surveillance. A criminal history search was $600 (NYIA cost page). These are NYIA's own numbers for New York, not a market average. We profile the woman who set them in our feature on Neelum Khan.
For context, the U.S. Bureau of Labor Statistics put the median pay of private detectives and investigators at $24.62 an hour in May 2025 (BLS). That is what investigators earn, not what agencies bill. The billed rate is a different number.
What Moves the Price
Hours
Surveillance is billed by time. A person with a steady routine is cheaper to follow than one who moves at random.
Number of Investigators
Some jobs need more than one person, which raises the rate.
Urgency
Rush work costs more than work planned ahead.
Place
Big cities, long drives and hard locations all change the bill.
Court Needs
If the work may go to court, extra documentation and time to testify may be part of the cost.
How to Keep Costs Down
- Give the investigator a clear question.
- Share routines, addresses and vehicle details.
- Ask for a flat fee for records work.
- Set a limit and ask for an update before it is passed.
- Ask whether a smaller job could answer your question.
Beware of Very Low Prices
A price far below the rest may hide extra fees or thin work. Ask what is included. Ask about minimums and what happens when the retainer runs low. Get everything in writing.
Ask for a Written Estimate
A good agency will give you the rate, the plan and an estimate before work starts. It should also tell you when an investigation does not make sense. If you only get a verbal number, ask again in writing. In California this is the law. Since July 1, 2025 every private investigator agreement must be in writing and explain the fees, with a breakdown of how they are assessed (Business and Professions Code 7524).
Example, Two Ways to Spend the Same Money
Picture two clients with the same question. The first calls with a clear target, a known routine and a short list of places. The investigator can plan the hours well and the answer comes sooner. The second calls with only a hunch. The investigator spends more hours finding a pattern. Same agency, same rate, very different bills. The more you can share, the more your money does.
Flat Fee Work Versus Hourly Work
Some tasks have a clear start and end. A records search, a background check or a document service can often be a flat fee. Open ended work, like following a person, is usually hourly because nobody can promise how long the truth takes. Ask the agency which of its services are flat. You may be able to answer your question without paying for days of surveillance.
Ask What Is Not Included
Ask about extra hours, second investigators, travel time and court time. If the work may go to a hearing, ask what testifying costs. Surprises are the thing to avoid, and a clear list now means fewer calls later.
Before You Compare Quotes
Give each agency the same description of your case. If you tell one agency more than another, the quotes will not match. Ask each for the same items, rate, minimum, costs, retainer and refund terms. Then line them up side by side in a simple table. The right choice is usually obvious.
What to Expect on the First Call
Expect questions. A good agency asks what you need, what you already know and when you need it. It may tell you that your question can be answered for less than you feared, or that the job is bigger than you thought. Take notes. Ask for the estimate by email or in a written agreement. Then take time to compare before you decide.
Compare More Than Price
Look at the license, the experience with your type of case and the report. A cheaper agency that gives you an unusable report costs more in the end. The best choice is the one that tells you the truth about cost and results.
Fast Answers
Do woman owned agencies charge more?
No rule says so. Each agency sets its own rates, so compare in writing.
Can I get a flat price?
For defined tasks like records searches, often yes. Surveillance is usually hourly.
Is the first call free?
Policies differ by agency. Ask before you call.
What does a private investigator cost per hour?
It depends on the agency. One New York agency, NYIA, posted $240 an hour for one investigator and $280 for two on October 17, 2026, with a 5 hour minimum. Ask each agency for its rate in writing.
Primary Sources
- New York Intelligence Agency, How Much Does a Private Investigator Cost in New York
- U.S. Bureau of Labor Statistics, Private Detectives and Investigators
- California Business and Professions Code 7524, written agreements
All sources were read in October 2026.