Key Takeaways
- A private lie detector test usually costs $500 to $900. Some complex tests cost more.
- Choose an examiner who graduated from an APA-accredited school and has experience with advanced polygraph instruments. A detective background can help in theft or loss cases.
- Higher-stakes tests, such as anti-doping screening, generally cost more than low-key screenings like family substance abuse concerns.
- Most examiners charge flat rates for both.
- Browse APA-accredited examiners, compare prices, register online, and pay a security deposit that counts toward the total fee. A local examiner typically contacts you within 2 business days.
- No polygraph is 100% error-free, but a professionally administered exam is the best way to support its credibility.
If you’re planning to request a polygraph exam in Maryland, several questions could be racing through your mind. One such concern pertains to pricing.
So, how much does a lie detector test cost?
Well, polygraph fees aren’t set in stone. While $500 to $900 seems to be the average price of lie detector tests in many jurisdictions, the final amount can vary depending on several factors.
Understanding the cost of a lie detector test is critical before scheduling the exam. It lets you compare rates across potential examiners, ensuring you’re getting great value for your money.
This post examines the average cost of lie detector tests in Maryland, highlighting the key factors dictating prices and how to prepare for polygraph exams.
Table of Contents
- How Much Does It Cost to Get a Private Lie Detector Test Done?
- How Do I Pick a Reliable Company to Take a Lie Detector Test With?
- Factors That Affect Polygraph Exam Cost
- Can I Get a Lie Detector Test the Same Day I Book It?
- What’s Usually Included in the Price of a Professional Lie Detector Test?
- Where Can I Book a Lie Detector Test Near Me?
- Is It Worth Paying for a Lie Detector Test, or Are Cheap Ones Just as Good?
- Polygraph Cost vs. Quality: Treading the Thin Line
- Frequently Asked Questions
How Much Does It Cost To Get A Private Lie Detector Test Done?
The cost of a private lie detector test ranges from $500 to $900.
As noted, the final price depends on several factors. Some tests may exceed this range altogether, depending on the nature and complexity.
Experts discourage cutting costs on lie detector tests.
Generally, polygraphers who charge rock-bottom fees offer substandard testing. And when your life or reputation is on the line, the last thing you want is a bungled polygraph test.

How Do I Pick a Reliable Company to Take a Lie Detector Test With?
Experience and credibility are important when looking for a reliable polygraph company.
First, only book a lie detector test with a polygrapher who graduated from an APA (American Polygraph Association)-accredited school. The individual must also demonstrate knowledge and experience in using advanced polygraph instruments.
Besides, inquire about industry-relevant expertise. Professionals with a detective background may be preferable in cases involving theft or loss.
Other factors affecting professional polygraph examiner cost include;
1. Test Type
Polygraph tests can take numerous forms, including;
- Criminal defense testing
- Cheating and infidelity testing
- Immigration testing
- Sex offender testing
- Addiction treatment testing
- Sport testing
Generally, polygraph exam fees depend on the test type.
Higher-stakes evaluations, such as anti-doping screening, may cost more than low-key screenings involving substance abuse allegations within families.
2. Test Scope
Lie detector test price also depends on the complexity. Exams involving extensive background checks and multi-disciplinary interventions (such as the need for translators) generally cost more.
However, note that most polygraphers charge flat rates for both single-issue and multi-issue tests.
3. Expected Turnaround
Polygraph reporting timelines can vary from immediately to several days. Typically, the timeframes impact the final cost.
Exams that require simple verbal feedback may cost less.
But where an official detailed report is necessary, examiners may factor the workload into their quotes.
4. Travel Requirements
You can expect to pay more for a lie detector test if you or the examiner must travel miles to the testing location. Working with local examiners eliminates travel expenses, a critical factor impacting polygraph costs.
Perhaps you’re now wondering – can I get a lie detector test done the same day I book it?
A same day lie detector test is generally not advisable since the preparation begins the day before your appointment, including avoiding drugs, alcohol, and arguments, getting enough sleep, eating a meal before the test, etc. However, to expedite the process, you should contact an examiner in your city or state.
What’s Usually Included in the Price of a Professional Lie Detector Test?
- Examination process: From pre-test to post-test
- Case research and documentation, including necessary background checks
- Report compilation
- Travel and accommodation expenses (where applicable)
- Interpreter and video documentation fees (where applicable)
Where Can I Book A Lie Detector Test Near Me?
When looking for a “lie detector test near me,” you’ll need to find a qualified examiner in your locality and agree on the testing location. The booking process generally unfolds as follows;
- Check out a list of APA-accredited examiners on Polytes.org’s Global Polygraph Network (GPN).
- You can select examiners by credentials, gender, and calendar availability.
- Select your preferred GPN testing location.
- Evaluate the exam prices, including applicable discounts.
- Register for the exam online and pay a security deposit.
- The security deposit applies towards the overall exam fees.
- Wait for a local examiner to contact you, typically within 2 business days.
Is It Worth Paying For A Lie Detector Test, Or Are Cheap Ones Just As Good?
A cheap lie detector test may be ironically costly in the long run due to hidden fees.
However, the biggest concern with cheap polygraphs is that they generally utilize unqualified examiners relying on outdated equipment and non-validated techniques. Therefore, the tests seldom yield accurate findings.
Note that no lie detector test is 100% error-free. However, one way to validate polygraph credibility is by insisting on professionally administered exams.

Polygraph Cost vs. Quality: Treading the Thin Line
Polygraph cost, as with most things in life, often reflects the quality of services expected.
Don’t go looking for the bargain of the century. Instead, focus on having all scheduled lie detector tests administered by a qualified examiner.
Polytest maintains a vast network of APA-certified polygraphers, connecting clients in Maryland with suitable professionals. Request a price quote today and let us link you with the right examiner in your location.
Frequently Asked Questions
1. How much does a private lie detector test cost?
A private lie detector test averages $500 – $900, with numerous factors impacting the final cost.
2. Can I book a lie detector test on short notice?
No. Same-day appointments are not advisable because preparation needs to begin the day before the test, including avoiding drugs, alcohol, and arguments, eating a meal beforehand, etc. It may take up to 2 business days to find an examiner near you, plus a few more days to take the test.
3. Why can a cheap lie detector test end up costing more?
Suspiciously discounted polygraph exams (costing under $300) are a red flag of unqualified examiners. While the price may be enticing, cheap lie detector tests can lead to highly inaccurate results.
4. What payment and booking options does Polytest.org offer?
Polytest.org provides online and call-based reservations.
You typically pay a non-refundable security deposit, which is factored into a test’s overall cost, with the balance payable directly to your examiner.
5. Is the price different for a single-issue vs. a multi-issue test?
No. Most polygraphers charge base rates for event-specific and multi-issue tests. Extra costs generally depend on expenses like the test type, travel, and reporting timelines.






