Daily Junction.mobi portalPersonal Finance · March 21, 2025 · Rachel Stone · 5 min
Millions of UK taxpayers miss out on tax relief they are entitled to, from job expenses to pension contributions and charitable giving. This guide explains the main types of tax relief, how to claim through HMRC, and how to avoid scams.
Every year, large numbers of UK taxpayers quietly overpay — not through any mistake of their own, but simply because they never claim tax relief they are entitled to. The reliefs are not hidden, but they are easy to overlook, and a small industry has grown up charging people for refunds they could claim for free. This guide explains the main types of tax relief, how to claim directly through HMRC, how far back you can go, and how to avoid the scams. This is general information, not professional tax advice.
Tax relief means paying less tax — either by reducing the income you are taxed on, or by getting back tax you have already overpaid. It is the system's way of recognising that certain costs and contributions should not be taxed in full, from money you spend doing your job to money you put into a pension or give to charity.
Relief generally arrives in one of two ways:
Understanding which reliefs apply to you starts with understanding your own tax position; our guide to tax codes in the UK is a useful companion, because an out-of-date code is itself a common cause of overpaying.
You cannot claim what you do not know exists. These are some of the most frequently overlooked:
The reliefs are not secret. They are simply unclaimed, because no one is automatically going to hand back money you did not ask for.
The single most important thing to know is that you can claim tax relief directly through HMRC for free. You do not need a third party. The main routes are:
When you claim, HMRC will usually either adjust your tax code so you pay less going forward, or issue a refund for tax already overpaid. Keep records — receipts, payslips, pension and donation statements — in case HMRC asks you to evidence a claim.
A point that surprises people: you can usually backdate claims for several past tax years, not just the current one. So if you have been paying a professional subscription, incurring unreimbursed job expenses, or missing higher-rate pension relief for years, you may be able to reclaim for those earlier years in one go.
The exact time limit depends on the relief, but it is commonly up to four years. Because the window is finite, it is worth checking sooner rather than later — every year that passes can mean an older year drops off and becomes unclaimable.
Two traps cost taxpayers real money:
To stay safe: only ever start a claim from GOV.UK directly, never from a link in a message; and if you are unsure whether a contact is genuine, check HMRC's published guidance on identifying scams. Treat any "you're owed money, act now" pressure as a warning sign — the same instinct that protects you from other financial scams.
Tax relief is money you are entitled to keep, and a surprising amount of it goes unclaimed simply because no one asks for it on your behalf. Check whether you qualify for relief on job expenses, professional fees, working from home, pension contributions and charitable giving — and remember you can usually backdate claims for several years. Above all, claim directly through HMRC for free: skip the refund companies that take a cut, and treat any unsolicited "refund" message as a likely scam. A short check on GOV.UK could put real money back in your pocket. For anything complex, a qualified tax adviser or accountant can help.
![[View image]](/img/how-to-claim-tax-relief.jpg){kind=link}