In March, the letter was delivered. No warning, no prior correspondence, and no slow escalation. Just a request from HMRC to return £1,279.60 within 30 days, almost six years after the initial tax refund was paid, processed, and, from the taxpayer‘s perspective, settled. The case involved a pension correction payment made in 2020, an emergency tax deducted at the time, a successful refund claim made by the taxpayer’s late husband, and years of seeming silence. It was discovered as a result of a reader inquiry to The Telegraph’s pensions column. Until HMRC decided it wanted the money returned in March 2026. It turns out that the reader’s query, “Do I have to pay this or have they made a mistake?” is the correct one. The solution is actually quite difficult.
DRIER, which stands for Duty Repaid In Error Refunded, is the name of the procedure that underlies these demands and suggests dry bureaucratic precision. It is HMRC’s internal process for collecting repayments that it has determined were made in error. The complicating factor in DRIER cases is that HMRC must write to the taxpayer directly because the overpayment cannot be corrected through the taxpayer’s standard self-assessment record, usually because the repayment status is already listed as “Issued” and the standard adjustment process is unavailable. The timeline is what causes recipients to feel startled by this process. A refund is processed by HMRC, the taxpayer receives it, years go by, and then a letter stating that the payment was incorrect arrives. The refund was not reported on the taxpayer’s 2020–21 self-assessment return, which was the technical reason in the Telegraph case. A different and reasonable question is whether the taxpayer had any reason to know it needed to be declared.
| What Is Happening | HMRC is issuing unexpected letters to UK taxpayers demanding repayment of tax refunds issued years ago — in some cases up to six years prior. Letters arrive with 30-day repayment deadlines, with no prior warning. Cases involve pension tax refunds, PAYE overpayments, and self-assessment rebates that HMRC now says were issued incorrectly |
| The DRIER Process | DRIER = Duty Repaid In Error Refunded. HMRC’s internal mechanism for recovering repayments it believes were made incorrectly. Used when the overpayment cannot be corrected through the taxpayer’s standard self-assessment record — typically because the repayment status is already shown as “Issued.” Applies regardless of whether the error was made by the taxpayer or by HMRC itself |
| Case Example | Taxpayer (reported by The Telegraph): In 2020, received a pension correction payment from LV= after an earlier miscalculation. An emergency tax of £1,279.60 was deducted. Husband (a former accountant) successfully applied for a tax refund. HMRC issued a refund. In March 2026 — nearly six years later — HMRC wrote demanding full repayment within 30 days, citing failure to declare the refund on the 2020–21 self-assessment return |
| How Far Back HMRC Can Go | Genuine errors: HMRC can typically go back 4 years. Carelessness suspected: extended to 6 years. Offshore or deliberate cases: up to 12 years. Cases involving pension emergency tax codes and PAYE overpayments generally fall within the 4–6 year window |
| Reference | GOV.UK — Check How to Claim a Tax Refund (gov.uk) ↗ |
The unexpected letter “demanding money at 30 days’ notice after nearly six years” was described as “quite shocking” by Charlene Young, a pensions and savings specialist at AJ Bell. This is a fairly significant statement about HMRC’s actions from a financial planning specialist. She also clarified an important aspect of the language HMRC used in the demand: the phrase “trivial lump sum payment” is a defined technical term in pension tax legislation that covers particular situations in which a pension provider pays out benefits in a lump sum, rather than a casual dismissal of the amount involved. Given that the amount involved was the consequence of an error that was not the taxpayer’s fault in the first place, the wording is, to put it kindly, unfortunate. However, the technical framing is important in determining the nature of this dispute and how it can be contested.
Because it establishes the outer limit of the agency’s legal reach, advisers frequently bring up the question of how far back HMRC can go in these circumstances. HMRC can usually look back four years for genuine errors, which are simple mistakes devoid of any intentional understatement. That goes up to six years if negligence is suspected. The limit extends to twelve in cases involving offshore operations or intentional evasion. The demand for repayment of a 2020 refund in the March 2026 letter is right on the edge of the six-year window, which is the kind of timing that should prompt a careful examination of whether the demand is truly within HMRC’s authority under the particular circumstances. The demand might be perfectly justified. Additionally, the taxpayer’s records might reveal something that HMRC missed or made a mistake, and reviewing the documentation is the only way to find out.
Reading through these cases gives me the impression that ignoring the letter and hoping the issue goes away is both the most sensible and riskiest course of action. It won’t. On unpaid repayment demands, HMRC adds interest at a rate of about 7.75 percent, and persistent non-compliance may result in enforcement action. The response must occur within 30 days, even if the taxpayer is certain that the demand is incorrect. This includes formal engagement with HMRC to start a challenge rather than payment. This entails confirming that the letter is authentic in the first place. Because HMRC scams are so frequent, Citizens Advice expressly advises using the HMRC online account or official contact number to verify any unexpected repayment demands rather than using any information printed in the letter itself. After verification, the next steps are to carefully review HMRC’s stated justification, collect pertinent documents (such as tax returns, pension statements, and correspondence from the initial refund), and either confirm the demand or start the formal Mandatory Reconsideration process. Request that HMRC reconsider its ruling.
HMRC offers Time to Pay arrangements, which allow repayment in installments based on what an individual can actually afford, for those who acknowledge that the demand is correct but are unable to pay in full. Although this is not well known, it does exist, and anyone who faces a demand that accounts for a sizable amount of their monthly income should ask for it rather than ignore it. All of this contains an unglamorous but true record-keeping lesson: financial records, such as tax returns, pension statements, and HMRC correspondence, must be retained for a minimum of six years because it appears that past matters can remain open for six years. The matter being closed is not the same as the receipt being settled.
