Working Time Regulations 1998 and GPS time tracking: UK record-keeping in 2026

It is Friday afternoon at a Manchester facilities-management office. An HMRC compliance officer has called to flag a tip-off about excessive weekly hours on a contract you took over from a competitor. The contractor never asked staff to sign opt-outs. The supervisor logged hours on a paper rota that lives in a glove box. You have seven days to produce the records the Working Time Regulations 1998 demand. You will not find them.

Why regulation 9 records keep failing UK businesses

Regulation 9 of the Working Time Regulations 1998 is short enough to read on a coffee break, yet it is the single biggest reason small UK employers fall over during an HSE or HMRC audit. It demands that you keep, for two years, adequate records to show you have complied with the 48-hour weekly limit, the night-work limits, and the rest-break entitlements under regulations 4, 6 and 10. Adequate is the loaded word. Tribunals have ruled that a paper rota, retrospectively filled in by a supervisor, is not adequate when the worker disputes it.

What happens in practice is predictable. The night-shift team logs ten-hour shifts five days a week. Someone forgets to record a stand-by call-out. The opt-out form was signed in 2022 and the worker has since changed roles. When the dispute lands at the employment tribunal, the burden of proof shifts back to you. No clear record means the claimant’s version of events is the version that sticks.

The CJEU‘s Deutsche Bank ruling (C-55/18) settled the European-law side of this back in 2019, and although the UK has left the EU, the Working Time Regulations were carried into domestic law and the principle has stuck. You must have an objective, reliable and accessible system for measuring time worked. Pen-and-paper is none of those three.

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What a GPS clock-in actually proves in front of an inspector

A GPS clock-in does three things a paper rota cannot. It captures the start and end of each working period to the minute, with a location stamp inside a geofence you defined when the contract was set up. It records the breaks, including the ones the supervisor would otherwise forget to log. And it survives. The data is not on a tablet that gets dropped in a puddle on site or a clipboard that gets lost during the office move.

For regulation 9 purposes, that means you can produce, from a single screen, the weekly total hours per worker, the night-work hours, the breaks taken and the rest periods between shifts. You can also show whether the worker had signed an opt-out and when. If the inspector asks for a six-month sample, you export it in two clicks rather than digging through email threads.

Opt-outs, 48-hour averages and what GPS does not solve

GPS does not solve the opt-out problem on its own. You still need a written opt-out signed by the worker, you still need to allow them to revoke it on seven days’ notice, and you still need to keep an up-to-date list of workers who have opted out. A workforce-management platform can store the opt-out alongside the time data, which means when the dispute lands, you produce one document, not three.

The 48-hour limit is averaged over 17 weeks, not measured week by week. This is where employers get caught: they look at a heavy week, panic, and tell the worker to clock out early. Then the audit covers a 17-week window in which the worker did just over 48 hours on average, and the early clock-outs look like manipulation. Honest, contemporaneous GPS records protect you from this. You see the average build up in real time, and you act on the contract or the staffing, not on the timesheet.

Two years is not a deadline, it is a floor

Regulation 9 says two years. ACAS guidance, employment tribunal practice and the limitation periods for unlawful-deduction-from-wages claims all push this longer. Six years is the safer floor. The marginal cost of keeping six years of GPS clock-in data is negligible. The marginal cost of being unable to defend a 2024 claim in 2027 because you binned the rota is potentially the working-time award plus costs.

The pattern we see across UK SMEs in field service, cleaning, security and construction is the same. The companies that move first on GPS time tracking are the ones that have just lost a tribunal claim and now treat record-keeping as a defensive asset. The ones that wait are the ones that find out, mid-audit, that adequate is a stricter word than they thought. If you would rather sit on the right side of that conversation, you need an objective, reliable, accessible system. GeoTapp gives you one, configured for UK working-time rules from day one.

Picture the next employment tribunal hearing on a Tuesday afternoon, and your working-time records are a desk exercise.