Why there is no single price
People searching for the cost of a polygraph usually want one number. Honest answer: there isn't one. Anyone quoting a flat price without knowing what the test is for is either simplifying or selling.
The cost depends on the situation, and the first question is who is paying and why you are being tested.
Who pays: three common situations
| Situation | Who usually pays | What to know |
|---|---|---|
| Employer, police or agency requires it | The organization that requires the test. | You usually do not pay for the exam. You may still want separate preparation or advice. |
| Court or legal case | Usually the side that commissions it, such as a party or their lawyer. | Rules on use of results vary widely by country. |
| You want a test or review for yourself | You, directly to the examiner. | You are choosing the examiner, so quality and independence matter most. |
In the United States, the Employee Polygraph Protection Act generally restricts private employers from requiring tests, with limited exceptions. See the US Department of Labor fact sheet. Rules elsewhere differ.
What drives the price
- The type and length of the test. A single-issue exam takes less time than a multi-issue or screening exam.
- The number of issues and questions. More topics mean more charts and more scoring.
- Time and travel. The pre-test interview and post-test interview often take longer than the charts. Travel to your location adds cost.
- The examiner's training and experience. Qualifications, supervision and track record affect fees.
- The written report and charts. Some quotes include them, some charge extra.
- Urgency. Short-notice or after-hours appointments may cost more.
The numbers you will see online vary widely and many come from sites selling testing. We do not quote a figure here because we cannot back one with a reliable source.
How to choose an examiner if you are paying
- Check training and association.Ask where they trained and whether they belong to a professional polygraph association. Verify what they tell you.
- Ask about experience with your kind of test.A screening exam, a specific-issue exam and a legal case are different.
- Ask about independence.The examiner should not promise an outcome or depend on a result that suits whoever is paying.
- Get a written quote.It should say what is included: session length, number of issues, charts and a written report.
- Ask about retests and cancellations.Know what happens if the result is inconclusive or you need to reschedule.
Costs you may not have thought about
- Time off work and travel for a session that can run for hours.
- Preparation. Understanding the process beforehand reduces surprises. See how the test runs and the test-day checklist.
- If it goes badly. A retest, an independent review or legal advice may cost extra. See what to do after a failed result.
This guide is general information, not legal or financial advice.
Frequently asked questions
How much does a polygraph test cost?
Who pays for a polygraph test?
Why do prices vary so much?
Is the cheapest examiner the best choice?
What should I ask before paying?
Sources
Want to know what you actually need?
Before you pay for anything, a short private conversation can clarify whether you need an exam, a preparation session or a post-test review, and what each involves.