5 tax refunds employees in the UK forget to claim

Most employees assume their tax bill is fixed.

Your salary goes through PAYE, the deductions are made automatically, and that’s the end of it. There is a confidence that everything has been calculated correctly, and there is nothing more to think about.
But that is not always true.

Every year, thousands of people in the UK overpay tax. Not because they have done anything wrong, but because they never claim the reliefs they are entitled to.

The reality is that the system relies on you knowing what you can claim. And if you do not check, the money simply stays with HMRC.

Here are five of the most commonly overlooked tax refunds for employees.
The first is the uniform washing allowance.

If your job requires you to wear a recognisable uniform or protective clothing and you wash it yourself, you may be able to claim a flat rate tax allowance. This applies across a wide range of roles, from healthcare workers and mechanics to construction and hospitality staff. It is one of the simplest claims available, yet many people never realise it exists.

Next are professional memberships.

If you pay for a professional body that is relevant to your job, and it appears on HMRC’s approved list, you can usually claim tax relief on those fees. Over time, this can quietly add up, especially in industries where memberships are essential for career progression.

The third is tools and equipment.

If you have had to buy tools, uniforms or specialist equipment for your role and your employer has not reimbursed you, you may be able to claim tax relief on the cost. This is particularly relevant for tradespeople, but it can apply more broadly than people expect.

Then there is working from home.

If your job requires you to work from home and you are covering additional costs yourself, you may be able to claim tax relief. The rules have tightened in recent years, but for those who qualify, it is still worth checking.

Finally, mileage for work travel.

If you use your own car for work journeys and your employer pays less than HMRC’s approved mileage rates, you can claim tax relief on the difference. This is often missed, especially by people who assume that any mileage payment means they have already received the full benefit.
The part that surprises most people is this.

You can usually go back and claim for the last four tax years.

So even if you have never checked before, there may still be money sitting there waiting to be reclaimed.
The process itself is relatively straightforward. You can claim through your HMRC personal tax account or by filling in a P87 form. It does not take long, and once it is done, HMRC will adjust your tax code or issue a refund if you are owed money.

None of these claims will make you rich overnight. But that is not the point.

This is money you have already earned, and in many cases, already overpaid.

And once you start paying attention to it, you realise just how many small leaks there can be in your finances.