HMRC Overcharged 8.7m Pensioners by £5 in Tax Error

It’s a headache no one wants, especially when you’re trying to budget on a fixed income. HM Revenue and Customs has accidentally squeezed an extra £5 out of up to 8.7 million pensioners for nearly a year. That might sound like pocket change individually, but collectively it adds up to a staggering £43.5 million collected in error.

The mistake happened last tax year, affecting retirees whose State Pensions are managed by the Department for Work and Pensions (DWP) but whose taxes are coded by HMRC. It wasn’t a one-off glitch; it was a sustained billing error that went unnoticed for months.

Here’s the thing: this isn’t just about getting your five quid back. It comes at a time when pensioners are already navigating complex changes to Winter Fuel Payments and facing a surge in sophisticated scams. The confusion is real, and the financial impact, while small per person, is massive in scale.

The Scale of the Mistake

According to reports from The Independent, the error affected as many as 8.7 million people. Each was charged roughly £5 more than they owed. When you multiply that across millions of households, you get the £43.5 million figure cited by officials.

Why did this happen? The details are still being ironed out, but it stems from how HMRC calculates tax codes for those receiving State Pensions. Since the DWP pays the pension directly into bank accounts, HMRC must estimate the annual income to set the correct tax code. Somewhere in that data transfer or calculation logic, a systematic error occurred.

For most pensioners, this means their tax codes were slightly off. They didn’t owe the money, yet it was deducted automatically through PAYE (Pay As You Earn). The good news? HMRC has acknowledged the error. Refunds should be processed automatically, though timelines for when those credits hit bank accounts remain vague.

Winter Fuel Payments and the £35,000 Threshold

While pensioners wait for refunds, another major financial shift is underway. This winter, nine million pensioners across England and Wales will receive automatic Winter Fuel Payments ranging from £100 to £300. These payments are designed to help with energy bills during the colder months.

But there’s a catch. If you earn more than £35,000 a year, you may have to pay it back. Martin Lewis, consumer finance expert, has been vocal about explaining these rules. He notes that the government raised the clawback threshold to £35,000 per individual, not per household.

"If pensioners with an income of over £35,000 received the Winter Fuel Payment, they may need to repay it later," government guidance states. This repayment won’t require a separate bill. Instead, HMRC will adjust your tax code starting April 2026 or deduct it via your self-assessment return for the 2025/26 tax year.

Lewis emphasizes that the payment is technically split per person in a household. For example, if two partners over 80 live together, they get £300 total. If one earns over £35,000, only their half (£150) is clawed back. The other partner keeps theirs, provided they’re under the threshold.

A Surge in Scams Targeting Seniors

With all this money moving around—refunds, fuel payments, clawbacks—scammers are circling like sharks. HMRC recently issued a specific warning to 2 million state pensioners about potential fraud.

Criminals are exploiting the confusion. They send texts and emails pretending to be from HMRC or the DWP, asking for bank details or urging victims to click links to "claim" their Winter Fuel Payment. Remember: legitimate Winter Fuel Payments are automatic. You do not need to apply.

The DWP advises checking your bank statement carefully. Genuine payments will show a reference starting with your National Insurance number followed by 'DWP WFP'. If you see anything else, or receive unsolicited messages, forward the text to 7726. Do not engage.

On June 9, 2026, the government announced new plans to better protect pension savers from these increasingly sophisticated attacks. But until then, vigilance is key. As Lewis puts it, "Ignore any message asking you to do something about the payment. It’s a scam."

What Happens Next?

For the 8.7 million affected by the tax overcharge, the process should be seamless. HMRC aims to correct tax codes and issue refunds without requiring action from taxpayers. However, patience may be required as the backlog clears.

Higher-income pensioners should keep an eye on their tax codes from April 2026 onwards. If you notice unexpected deductions, check if they align with the Winter Fuel Payment clawback. You can contact HMRC if the numbers don’t add up, but generally, the system is designed to handle this automatically.

This situation highlights the complexity of the UK’s welfare and tax systems. While the errors are being corrected, the ripple effects remind us how interconnected these services are. A glitch in one department can cost millions in another.