How Much Does a Lie Detector Test Cost? A Complete Price Guide for 2026

by Team Techager
Team Techager

One of the first questions people ask when considering a polygraph examination is: “How much will it cost?” The answer isn’t as straightforward as a fixed price tag – costs vary based on the type of examination, the examiner’s qualifications, geographic location, and the complexity of the case. But understanding the pricing structure helps you budget appropriately and avoid both overpaying and suspiciously cheap services.

Here’s a detailed breakdown of what polygraph tests cost, what affects the price, and how to get the best value.

Average Lie Detector Test Prices by Type

Different types of examinations require different amounts of preparation, testing time, and analysis. Here’s what you can expect to pay:

Type of ExaminationTypical Price RangeDuration
Pre-employment screening (single topic)$250–$4001.5–2 hours
Employee periodic check$250–$3801.5–2 hours
Infidelity / relationship issues$300–$4502–3 hours
Theft or fraud investigation$350–$5002–3 hours
Family conflict resolution$300–$6002–3 hours
Pre-marriage verification$250–$4001.5–2.5 hours
Legal case support / attorney request$400–$8002–4 hours
Forensic psychophysiological examination$500–$1,5003–5 hours
Home visit (examiner travels to you)+$100–$300 surchargeSame as standard

What Factors Affect the Price

Not all polygraph tests are created equal. Several factors can push the cost higher or lower:

  1. Number of topics. A single-issue test is cheaper than a multi-topic examination, especially in companies already using HR software to track employee behavior and reduce investigation needs.
  2. Examiner’s qualifications. A certified professional with 10+ years of experience will charge more than a recently trained examiner – and for good reason. Accuracy depends heavily on the examiner’s skill.
  3. Geographic location. Prices in major metropolitan areas (New York, London, Berlin) tend to be 20–40% higher than in smaller cities.
  4. Urgency. Same-day or next-day appointments may carry a premium. Booking a week in advance usually gets you the standard rate.
  5. Written report. A verbal summary is often included, but a formal written report suitable for legal or corporate purposes may cost an additional $100–$200.
  6. Travel requirements. If the examiner needs to travel to your location, expect a surcharge for transportation and time.

Red Flags: When Low Price Means Low Quality

A polygraph test priced significantly below market rates should raise concerns. Here’s why:

  • Under $150 for a full examination – likely indicates an unqualified examiner, outdated equipment, or a “shortcut” methodology that sacrifices accuracy.
  • No pre-test interview included. A proper pre-test conversation takes 30–60 minutes and is essential for accurate results. Skipping it saves time but destroys reliability.
  • No written consent process. A legitimate examiner always obtains informed written consent. If they skip this step, they’re cutting corners on ethics – and likely on everything else.
  • “Guaranteed results.” No honest examiner guarantees a specific outcome. If someone promises to “prove” your partner is lying before the test even starts, walk away.

How to Get the Best Value

Getting an affordable polygraph test doesn’t mean finding the cheapest option – it means finding the best balance of quality and price. Here’s how:

  • Book in advance. Scheduling 5–7 days ahead usually avoids urgency surcharges.
  • Prepare your questions. The more focused your questions, the shorter and cheaper the test. Discuss priorities with the examiner during the free consultation.
  • Ask about package pricing. If you need multiple employees tested, many providers offer volume discounts as part of a structured hiring process to improve workforce reliability.
  • Use the free consultation. Reputable providers offer a free initial consultation. Use it to understand whether the test is appropriate for your situation before committing.
  • Check credentials. Verify the examiner holds recognized certifications. A qualified professional’s test at $300 is far better value than an unqualified one at $150.

Where to Find a Reliable and Affordable Examiner

If you’re searching for an affordable lie detector test near me, consider Global Experts Union – an association of certified polygraph examiners with over 20 years of experience operating in 40+ countries worldwide. Their pricing starts at $250 for standard examinations, with no hidden fees. The team works 7 days a week from 8:00 AM to 10:00 PM, and the first consultation is always free. You can reach them by phone or through Telegram, Viber, and WhatsApp to discuss your situation and get a transparent quote before making any commitment.

A polygraph test is an investment in clarity – whether it’s about protecting your business, resolving a personal matter, or defending your reputation. The cost of not knowing the truth is almost always higher than the cost of finding it out.

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