Up to one million UK taxpayers may be sitting on unclaimed tax refunds worth an average of £453 each, according to HMRC, which issued a stark public warning this week via its official X account. The announcement has drawn renewed attention to a persistent blind spot in British tax administration, millions of workers and pensioners who simply never check whether they’re owed money.
The overpayments, HMRC says, frequently stem from mundane administrative errors: an incorrect tax code applied by an employer, a job change that wasn’t properly recorded, or a retirement that slipped through the system without the relevant paperwork being updated. The consequences, though, are anything but trivial. For many households, £453 represents a meaningful sum, and for those who have been overpaying for several years, the total owed could be considerably higher.
The Refund Process Is Not Automatic
Perhaps the most important detail buried in HMRC’s warning is one that surprises many people: tax refunds are not paid out automatically. Taxpayers must actively log into their personal tax account on GOV.UK or through the HMRC app, review their records, and formally submit a claim. Without that step, the money simply sits there, and, according to financial advisers cited in connection with the issue, it may eventually be lost altogether if left unclaimed indefinitely.
The department is pressing people to act without delay, particularly those who have recently changed jobs, retired, or received income from multiple sources, circumstances that commonly trigger miscalculations in tax deductions. According to HMRC, the sheer volume of people affected suggests that a significant portion of the workforce has never closely examined their tax position, either out of assumption that everything is handled correctly, or simply through inertia.
A Growing Scam Threat Complicates the Picture
The announcement arrives against a troubling backdrop. Fraudsters have moved quickly to exploit public awareness of the refund issue, deploying fake texts, emails, and phone calls that mimic official HMRC communications to harvest personal and banking information from unsuspecting victims. According to the tax authority, more than 135,000 HMRC-related scam reports have been filed recently, of which around 29,000 involved fraudulent tax refund claims specifically, and the numbers are rising.
Lucy Pike, HMRC’s Chief Security Officer, issued a direct appeal to the public: “Millions of people file a tax return each year and scammers mimic HMRC to try and catch unsuspecting victims out. I’m urging people to stay vigilant and if any emails, text messages or phone calls appear suspicious – don’t be lured into clicking on links or sharing your personal information – report it directly to HMRC.”
The department has been explicit about how legitimate communications work: genuine refund notifications will arrive either through HMRC’s secure online system or by post. The department will never request bank details or personal information through an unsolicited email or text message, a distinction that, according to officials, too many people are still unaware of. For those who believe they may be owed a refund, the advice is clear: go directly to GOV.UK, log in, and check, before a scammer gets there first.
