Tracker Audit Trail for Claims: What to Keep and When

Owner organizing vehicle claim records

A tracker audit trail is a dated set of records. It proves that an approved tracker was fitted, active and compliant on the day a vehicle was stolen. Insurers test that proof. A device in the vehicle is not enough on its own. The records must show the right device, a live service and a clear sequence of events after the theft.

This guide covers the records to collect at fitting, the records to maintain during the policy year, and the steps to take on the day of a theft. It applies to cars, motorhomes and fleet vehicles in the UK.

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TL;DR

  • Keep the installation record, the device identity, the digital certificate and the activation confirmation in one folder.
  • Match the exact approved model and category (S5 or S7) to the insurer’s written requirement.
  • Keep subscription invoices and service-status evidence. An inactive subscription can defeat a theft claim.
  • After a theft, report to the police and the insurer at once, get the crime reference number, and preserve every tracker alert.
  • Store the evidence as a numbered, dated pack, not as loose screenshots.

Table of Contents

Why insurers ask for proof, not just a device

Insurers treat a tracker as a policy condition. The condition is usually written into the policy schedule or the terms. If the condition is not met on the date of loss, the claim can fail.

A Financial Ombudsman decision on a theft dispute shows how this works. The insurer required an active tracking device and subscription. The vehicle had a manufacturer system with SOS capability. The Ombudsman did not require the insurer to pay, because the policyholder had not complied with the condition. The decision separates a proactive tracking device from an SOS system. It also treats subscription status as material.

Three points follow from the decision:

  1. The wording of the policy decides what counts as compliant.
  2. A feature that sounds similar may not satisfy the condition.
  3. The subscription status on the date of theft matters as much as the hardware.

The Association of British Insurers (ABI) gives the same direction in its motor insurance guidance. A tracking device can help police trace a stolen vehicle. The subscription must be maintained where the device needs one. Aftermarket trackers and immobilisers vary in quality, so the device should meet the policy and the security requirement. The ABI also points consumers to Thatcham testing and certification.

Match the category to the policy wording

“Thatcham approved” is not one specification. Thatcham Research publishes a national listing of tested security systems. In its May 2025 Vehicle Security National Listing, S5 is classified as Vehicle Tracking Systems and S7 as Asset Location Systems. The two sit in separate categories, with separate manufacturer and system listings.

The audit record should therefore name:

  • the category the insurer asked for (S5 or S7)
  • the manufacturer and the exact approved model
  • the serial number or unit identifier of the installed device
  • the wording from the policy or insurer letter that sets the requirement

The record should not say only “GPS tracker”. The ABI separates ordinary GPS, engine-inhibit and VHF devices. Each is a different product. A general GPS or telematics feature is not S5 or S7 approval.

A simple comparison helps when choosing:

Item S7 S5 S5 Plus
Thatcham listing category Asset Location Systems Vehicle Tracking Systems See insurer wording and the product page
Thatcham Trackers price £169 one-off £349 one-off £449 one-off
Digital certificate Yes Yes Yes

The insurer’s wording always decides which level is needed. Some insurers name S5, some accept S7, and some name a specific system. Confirm in writing before buying.

The installation file: what to collect on day one

Most weak claims fail on records that were never made. The installation file is the foundation of the audit trail. It should hold the following.

Identity of the device

  • Make, model and category
  • Serial number or IMEI
  • Date and place of fitting
  • Name of the engineer or installer

Proof of compliance

  • The digital certificate issued after installation
  • The date the certificate was sent to the insurer
  • The insurer’s acknowledgement, such as an email or a policy document update

Proof of activation

  • Activation confirmation from the monitoring provider
  • A first test alert, with its date and time
  • A photograph of the installed unit where the installer allows it, and the vehicle registration on the paperwork

A digital certificate is the central item. Thatcham Trackers supplies one with each S7, S5 and S5 Plus tracker, and it is accepted by UK insurers. The certificate should be saved as a PDF in at least two places. One copy belongs on a personal cloud account and one on a device that is not the vehicle’s own.

Records to keep during the policy year

The fitting date is only the start. The claim will be tested against the status on the day of theft, which may be months or years later.

Record Why it matters How often
Subscription invoices or payment confirmations Show the service was paid for and active Every billing period
Service-status screenshot or monitoring portal export Shows the unit was live and reporting Quarterly, and after any battery work
Test alert log Shows alerts reach the right phone or email At least once a year
Contact details held by the monitoring centre Confirms alerts reach the current keyholder After any change of number or email
Policy schedule and renewal documents Show the tracker condition as written for that year Each renewal
Garage or service invoices Show whether the battery or wiring was disturbed After each visit

Two events need extra care. A change of insurer can change the tracker condition. A change of vehicle or a battery replacement can break the link between the device and the vehicle. In both cases, update the file and tell the insurer in writing.

The ABI’s point about maintained subscriptions is the reason for the invoices. The Ombudsman decision shows the outcome when the subscription lapses. Where a tracker is sold with a long fixed term, keep the term documents with the invoices.

What to do on the day of a theft

The audit trail now moves from storage to action. Sequence matters, and every step should be dated.

  1. Report the theft to the police. GOV.UK guidance on a stolen vehicle says to contact the police and the insurer straight away. Be ready with the registration number, make, model and colour.
  2. Obtain the crime reference number. GOV.UK says to use this reference when making the insurance claim. Write it at the top of the evidence pack.
  3. Contact the insurer. Note the time, the name of the person spoken to and the claim number given.
  4. Contact the tracker monitoring provider. Ask for the alert log and the location history to be preserved. Note the name of the operator and the time of the call.
  5. Save the tracker’s first movement alert. Keep the notification as received, with the timestamp visible. Do not delete the app history.
  6. Pass tracker data to the police. Record the officer’s name, the reference and the time of each update.
  7. Do not approach the vehicle. Location data goes to the police. Personal safety comes first.

GOV.UK also explains that if the insurer pays the claim, the owner must tell DVLA the vehicle has been sold to the insurance company. Keep the payout letter with the file.

A sample evidence timeline

A clean timeline reads like this. The times are illustrative only.

Time Event Evidence saved
02:14 Movement alert received Screenshot of the alert, with timestamp
02:20 Vehicle found missing Notes, doorbell or camera footage
02:31 Police called Call log, crime reference number
02:50 Insurer notified Claim number, name of handler
03:05 Monitoring centre called Operator name, log reference
Next day Certificate and invoices sent Email with attachments, sent receipt

The value of the table is the order. An insurer reading it can see a compliant device, a quick response and no gaps.

What insurers and investigators look for

Insurers look for consistency. The device in the certificate must be the device that was installed. The policy requirement must match the category. The subscription must cover the loss date. The account of events must match the tracker log.

Four checks in a tracker claim audit trail

Where fraud is suspected, evidence standards rise. DVLA says it can release vehicle-record information to insurers or their solicitors for vehicle claims and suspected insurance fraud. Its guidance on giving information from the vehicle record says requests need supporting evidence, such as a claim or case reference number, a repair quotation or invoice, a photograph or an accident report. The same document tells requesters to keep an audit trail for a minimum of 2 years from the date of enquiry. The lesson applies to owners as well: a numbered, dated evidence pack carries more weight than informal screenshots.

Camera footage can support the same pack. A dashcam or home camera with a timestamp can corroborate the tracker log. A motorcycle dashcam product page shows the type of footage-recording unit some riders fit, though motorcycle insurers set their own requirements.

Why the stakes are high

Theft claims are large and frequent. The ABI reported 61,000 settled claims for vehicle theft and theft from vehicles in 2023. Its motor insurance affordability roadmap update cites these figures. The ABI’s 2024 claims report said £669 million was paid for theft of or from vehicles in 2023, and the average theft-of-vehicle claim was £12,600. These measures differ: one is a claim count, one is total paid, one is average value.

At an average of £12,600, a rejected theft-of-vehicle claim is a large loss next to the cost of an S7 tracker at £169 or an S5 at £349. Good records are cheap by comparison.

Perspective: where audit trails break

We see the same pattern in the questions that reach us. The hardware is rarely the problem. The proof is.

Our view rests on four points:

  • A certificate is only useful if it is saved, sent to the insurer and acknowledged.
  • The category on the certificate must match the insurer’s wording. S5 and S7 are different things.
  • A lapsed or unclear subscription is the most avoidable cause of dispute.
  • Evidence should be filed once, at fitting, and topped up once a quarter.

Every tracker and immobiliser we sell is Thatcham-certified, with a digital certificate issued after fitting. That certificate is the first page of the audit trail. The rest is the owner’s habit of keeping records.

— Thatcham Trackers

Motorhomes and fleets

Motorhomes carry high values and are often stored away from the owner for weeks. That makes the periodic service check more important. A quarterly status check and a note of where the vehicle is stored belong in the file. Insurers may ask for S5 or S7 depending on the vehicle value and the policy. Confirm which one in writing.

Fleets need a register. Each vehicle should have a line showing registration, device serial, category, certificate date, subscription renewal date and the named person who receives alerts. Drivers change, so the alert contact list needs a review each quarter. One folder per vehicle keeps claims quick when several are affected at once.

Common mistakes

  • Writing “tracker fitted” on the file. Name the category, make and model.
  • Relying on a manufacturer SOS function. The Ombudsman case shows it may not satisfy a requirement for a proactive tracking device.
  • Letting a subscription lapse. Diarise the renewal date.
  • Keeping evidence only on the vehicle’s own app. Export and store copies elsewhere.
  • Missing the crime reference number. GOV.UK says it is needed when contacting the insurer.
  • Changing contact details without telling the monitoring centre. Alerts then reach no one.

Fitting an approved tracker with a certificate

Thatcham Trackers sells insurer-approved trackers with a digital certificate and nationwide mobile installation. The range is:

Before ordering, check the insurer’s wording for S5 or S7. The tracker and immobiliser guide explains how to choose both. Further reading is on the advice and guides page and in the guide on why insurance policies list trackers.

FAQ

What is a tracker audit trail for a claim?

It is the dated set of records that shows an approved tracker was fitted, active and compliant when the vehicle was stolen. It includes the certificate, the device identity, activation proof, subscription invoices, alert logs and the post-theft timeline. Insurers use it to check the policy condition was met.

Does an SOS function count as an approved tracker?

Not automatically. In a published Financial Ombudsman decision, the insurer required an active tracking device and subscription, and the manufacturer SOS system did not meet that requirement. The policy wording decides. Ask the insurer in writing before relying on any built-in feature.

How long should tracker records be kept?

The sources reviewed set no single period for owners. Keep records for as long as the tracker is on the policy, and through any open claim. As a practical guide, DVLA asks its own requesters to keep an audit trail for a minimum of 2 years from the date of enquiry.

What should be done first if a tracked vehicle is stolen?

Contact the police and the insurer straight away, as GOV.UK advises. Obtain the crime reference number and quote it to the insurer. Then preserve the tracker’s first movement alert and location history.

Sources