Unpaid carers who were hit with bills for thousands of pounds after welfare officials unlawfully changed benefit rules may have to wait until 2054 to find out if they'll ever see that money again, campaigners have warned - a timeline that would be generous if the carers in question were, say, giant tortoises.

The Department for Work and Pensions (DWP) is currently wading through 200,000 cases in which carer's allowance recipients were incorrectly handed overpayments. An estimated 25,000 carers could be in line for full or partial refunds. Several months into what was supposed to be a two-year reassessment exercise, however, only a tiny fraction of the caseload has been processed. At the current rate, charities calculate the project won't wrap up until 2054 - roughly the same timeframe as a geological era, but with more paperwork.

Campaigners are alarmed not just by the pace but by the grim arithmetic of it: unless things speed up, some unpaid carers may die, or become untraceable after stopping their claims, before they're ever repaid. Nothing says "we value your service" quite like a refund schedule that outlives the claimant.

The reassessment follows an official review that concluded systemic DWP failures caused hundreds of thousands of carer's allowance recipients to unknowingly rack up debts as high as £20,000 - through no fault of their own. That review was triggered by an award-winning Guardian investigation, which revealed how years of government neglect and mismanagement forced unpaid carers into severe financial hardship and emotional despair, and resulted in hundreds of millions of pounds being misspent.

Ministers promised in December 2024 to end a scandal they consider an inheritance from the previous government. Nearly two years on, MPs and campaigners have repeatedly expressed doubts about the speed of the response, the DWP's appetite for change, and its handling of the process - doubts that, at this point, are less doubts and more a growing body of evidence.

Although the DWP has hired more staff and taken steps to try to stop overpayments, more than 30,000 additional overpayments were made in 2025-26, including 78 for over £20,000. Last year official figures revealed 144,000 carers were still paying off carer's allowance overpayment debts accrued over several years. There was fury early this year when it emerged the DWP had slapped overpayments on 1,400 carers for allegedly breaking carer's allowance rules - even though officials knew the decisions to issue penalties were based on faulty and discredited guidance.

The reassessment process, which started in April, is looking specifically at cases where the DWP breached the law by failing to allow carers with irregular wages from part-time work to average their incomes over a year, unfairly exposing them to penalties for breaching earnings limits. In other words, the department broke the rules and then punished people for the consequences.

Last week Stephen Timms, the welfare minister, told MPs that 3,000 cases had been reviewed so far as part of the £75m reassessment programme, and that the DWP was on track to complete the process in the planned timescale. Carers UK, however, noted that just 1.5% of the total projected caseload had been processed, and that at current rates the reassessment would take 27 years to complete. It remains unclear whether any carers have actually been repaid.

"We are seriously concerned by the pace of progress of the reassessment exercise and would like to see a clear and realistic plan for speeding it up, to ensure that carers who have been wrongly given overpayments over the last decade get a swift resolution," said Emily Holzhausen, the director of policy and public affairs at Carers UK.

She added: "Many carers who are owed a refund or the writing off of their overpayment debt to DWP have already been waiting for years - some for over a decade - to get justice and fair treatment from the department. For those who still don't know whether their case will be reassessed and when, a lengthy reassessment process will only compound the worry and uncertainty they are facing. We cannot risk carers being left to wait for years for a resolution to an injustice which was not their fault."

A DWP spokesperson said: "We are on track to complete the carer's allowance reassessment exercise within the three years previously announced. To support the exercise, we have been recruiting and training new Decision Makers in a rolling programme, ensuring we take the time to get things right. We have plans in place to increase resource at a steady pace over the course of the exercise."