How Often Should Office Appliances Be PAT Tested?

Ask around any office and you'll get the same confident answer: "everything has to be PAT tested once a year, it's the law." It's written into facilities calendars, repeated by suppliers, and treated as settled fact. There's just one problem with it, and it comes from an unimpeachable source: the Health and Safety Executive says it's a myth. As a company that earns money doing PAT testing, we've every commercial reason to let that myth stand, so consider this article our credentials for straight answers. Here's what the rules actually say about testing frequency in an office, and how to set a schedule that makes sense.

The annual rule that isn't a rule

The HSE's guidance on low-risk environments opens by tackling this head on: it's a myth that all portable appliances in a low-risk environment such as an office need a PAT test every year. The law, the Electricity at Work Regulations 1989, requires electrical equipment to be maintained to prevent danger, and as the HSE's own FAQ spells out, it doesn't specify what needs to be done, by whom, or how frequently. There is no legal interval. Not twelve months, not any other number.

So where did "annually" come from? Mostly from it being easy, one date, everything tested, calendar reminder set, and, less charitably, from it being profitable for testing companies. For some office equipment it's about right; for plenty of it, it's more than the risk justifies.

What should actually set the frequency

The HSE's approach is risk-based, and the risk of an appliance developing a dangerous fault comes down to what it is, where it is, and how it's treated. Its own illustration makes the point: a power tool on a construction site needs looking at far more often than a lamp in a hotel bedroom. An office sits at the gentle end of that spectrum, but not everything in an office sits at the same point on it.

Think about which appliances actually lead hard lives in your workplace. The kettle in the kitchen gets filled, boiled, unplugged and knocked about a dozen times a day. Extension leads get trodden on, trapped under desks and daisy-chained. Laptop chargers travel, get wound tight and yanked out by the cable. Meanwhile the monitor on a desk hasn't moved since it was unboxed, and much modern IT equipment is double-insulated and low-risk by design. Treating the kettle and the monitor identically isn't caution, it's just not looking. The HSE's guidance for low-risk environments accordingly suggests initial testing intervals for office equipment that can range from around one to five years depending on the type, with hard-used and non-double-insulated items at the frequent end and static, double-insulated kit at the other.

The bit everyone skips: checks between tests

Here's something else the HSE is refreshingly clear about: most electrical safety defects can be found by visual examination. A frayed kettle lead, a cracked plug, scorch marks around a socket, none of that needs a test instrument to spot, and none of it should wait for one either. A simple habit of user checks (glance at the cable and plug before use, report anything dodgy) plus a periodic visual once-over by a designated person does a large share of the safety work between formal tests, at no cost at all. Formal PAT testing then catches the faults that can't be seen, internal wiring problems, failed earth connections, and gives you the documented record.

What a sensible office schedule looks like

In practice, we'd walk your office and group the equipment by risk: the hard-working, frequently-handled items (kitchen appliances, extension leads, chargers, anything portable in the true sense) on a shorter cycle, and the static, low-risk kit on a longer one. Some offices still choose to test everything annually for simplicity, or because a landlord, insurer or client contract expects it, that's a legitimate choice, and if it's yours, check what your policies actually stipulate. But it should be a choice, not a misunderstanding of the law. And if a testing company insists everything must legally be done every twelve months, you now know exactly what that tells you about them.

The paperwork at the end, every item labelled and logged, one certificate for the file, is what satisfies the auditor, the insurer and your own peace of mind. There's more on how we handle workplaces on our PAT testing for offices page, and the fuller picture of what testing involves on our main PAT testing page.

Get in touch

Want a testing schedule that matches your office's actual risk, not just a date on a calendar? Get in touch and we'll work one out with you.

Related PreventaPest service: Find out about PreventaPest portable appliance testing for organisations and landlords.