PRICING for Polygraph Test

Discover our affordable lie detector test pricing options, designed to provide accurate results and help you uncover the truth.

Lie Detector Test Cost

The cost of a lie detector test in the UK can vary depending on several factors such as the location, the experience of the examiner, the type of test required, and the number of questions asked. However, as a general estimate, the cost for a single-issue test can range from £300 to £600. It is important to note that the price should be all-inclusive, with no hidden fees, and the examiner should be a certified member of a reputable association such as the UKPA or UKAPPE. It is always recommended to do your research and verify the credentials and reputation of the company before booking a lie detector test.

Office Test

At our controlled office locations.
£ 375 Inclusive
  • Inclusive Price
  • £150 Nonrefundable Deposit
  • Same Day/Next Day Booking Avaibality
  • Free Consultation
  • 100% Confidentiality

Home Test

At your home or residence.
£ 375+ subject to conditions
  • Additional Cost for Travel Costs
  • £150 Nonrefundable Deposit
  • Same Day/Next Day Booking Avaibality
  • Free Consultation
  • 100% Confidentiality

Our most requested private lie detector service

What is the Cost of a Lie Detector Test With Us?

A non-refundable payment of £150 is required for all of our bookings, which can be paid online through digital payment, over the telephone, or via bank transfer.

At Lie Detector Test U.K. Services, our test prices start from £375, which includes testing at our office location. We also offer flexible options to our clients, such as conducting the test at their preferred location, which may incur an additional cost to cover our travel expenses.

More Information

When you book with us, we require a non-refundable deposit to secure the booking. We offer various payment options, including bank transfers, credit cards, or other digital methods. This ensures that your booking is confirmed and your test is scheduled in advance.

If you require multiple tests on the same day, we offer substantial discounts. We can also provide multiple examiners to ensure that the work is covered in a timely manner and the results are delivered to you quickly. This is especially helpful when it is advantageous to test all suspects on the same day.

Additionally, we operate under strict ethical standards to ensure the confidentiality and privacy of our clients.

At Lie Detectors UK We Deal With You Directly

  • At Lie Detector Test UK Services, we deal with our clients directly, with fixed all-inclusive costs and no hidden surprises.
  • We have our own on-staff examiners who are qualified members of reputable associations such as the UKPA and UKAPPE.
  • We have our own permanent offices for a professional and comfortable testing environment.
  • Flexible testing options are available, we’ll go take the test at your preferred (place/subject/condition) if required.
  • Our experienced examiners provide a full report of the test results.
  • Our goal is to provide a reliable and confidential service to our clients, ensuring that the testing process is as comfortable and stress-free as possible.

The Real Cost of Polygraph Test

We often have clients come to us after receiving quotes for polygraph tests ranging from £100 to £1000. It can be confusing to determine the real cost of a polygraph test, and unfortunately, referral agencies often charge more than independent examiners. However, the general cost of a lie detector test at a reputable company typically falls within the range of £300 to £500.

If you receive a quote that is significantly lower than this range, it’s important to be cautious, as it may be indicative of subpar testing procedures or inexperienced examiners. On the other hand, if you receive a quote that is significantly higher than this range, it’s worth questioning the reasons for the inflated cost.

At Lie Detectors UK, our general cost for a polygraph test at our office is £375, which includes the cost of the test and the report of the results. If you require the test to be conducted at your preferred location, we may charge an additional fee to cover our travel costs.

We always encourage potential clients to do their research and choose a reputable examiner who is a member of reputable associations. This ensures that you receive a fair and accurate test at a reasonable price.

Why is a Polygraph Test So Expensive?

There are several reasons why a polygraph test can be expensive:

Equipment: Polygraph testing requires specialized equipment that is both expensive to purchase and maintain. The polygraph machine itself, along with the various sensors and components, must be kept in top working condition in order to produce accurate and reliable results.

Training: The process of becoming a qualified and experienced polygraph examiner requires extensive training and education. Examiners must typically complete a comprehensive training program and obtain certification from a recognized professional association.

Experience: Polygraph testing is a highly specialized field that requires a significant amount of experience to become proficient. Experienced examiners who have completed hundreds or thousands of tests are typically in higher demand and can command higher fees.

Quality Assurance: A reputable polygraph testing company will also have a rigorous quality assurance program in place to ensure that their testing procedures are up-to-date and accurate. This can involve ongoing training and development, as well as regular audits and reviews to ensure that testing procedures are being followed correctly.

At our company, We require an advance payment of £150 to confirm your booking, which covers administrative costs and secures your scheduled appointment. The overall cost of the test is £375, and this fee includes all expenses.

Our pricing is transparent, and we never surprise our clients with additional or hidden fees. Before booking a test, we discuss the client’s case and provide an estimate of the total cost. We strive to maintain clear communication with our clients and ensure that they fully understand the process and the associated costs.

Payment Plans and Checklist Before Hiring

There can be confusion before hiring your polygraph test service. Its essential to educate yourself with what you must know and be aware of, before you confirm your polygraph test service. There are some questions and inquiries you should take before hiring any lie detector service:

Why Don't We Refund the Deposit?

The non-refundable deposit is a standard practice in the industry and serves several important purposes. First, it ensures that the client is committed to the booking, which allows us to allocate the necessary time and resources to conduct the test. Second, it helps to cover our expenses in the event of a cancellation, such as administrative costs and lost opportunities to schedule other clients.


Additionally, polygraph testing is a complex process that requires extensive preparation and expertise on the part of the examiner. Our examiners invest a significant amount of time and resources into each test, including pre-test interviews, test administration, and post-test analysis. By requiring a non-refundable deposit, we can ensure that our examiners are compensated fairly for their time and expertise, even in the event of a cancellation.

Why Do the Charges Differ Outside Britain?

The cost of a polygraph test may differ outside of Britain due to additional expenses such as transportation costs. These extra charges are added to cover the examiner’s travel expenses and time spent away from the office, resulting in a higher overall cost for the service.

Our examiners will be on time at your preferred location and conduct the test with accuracy and professionalism, while ensuring your privacy and confidentiality are maintained at all times.


The cost of an actual lie detector test can vary based on several factors such as the location, the number of tests required, and the expertise of the examiner. However, in general, the cost of a polygraph test can range from around £300 to £500. 

Polygraph tests can be very reliable, up to 90% correct, when administered by a properly trained and experienced examiner. The accuracy of the test largely depends on the skill of the examiner, the quality of the questions asked, and the physiological responses of the person being tested.

It is unlikely that you can get a free lie detector test as they are typically conducted by professionals who charge for their services. Additionally, lie detector tests require specialised equipment and training to administer and interpret the results, which adds to the cost. However, you may find some organisations or researchers conducting lie detector tests for free as part of a research study or other program. It’s important to carefully evaluate the credibility of the organisation offering the free test and understand the potential risks and limitations of the test results.

Yes, you can take a lie detector test to prove your innocence in the UK. However, it is essential to choose a reputable and experienced polygraph examiner to ensure the accuracy and reliability of the results.

No, if the examiner is experienced and the equipment is functioning properly, it is unlikely that a guilty person will pass a lie detector test.