The Department for Work and Pensions (DWP) is once again turning its attention to the welfare system, this time with a focus on fraud and error. The DWP has announced that it will be reviewing five major benefits: Universal Credit, Housing Benefit, Pension Credit, State Pension, and Personal Independence Payment (PIP) for the 2026/27 financial year. This review is part of an ongoing effort to ensure the integrity of the welfare system and to identify areas where benefit spending is lost due to fraud, claimant error, and official error. The DWP's annual report on fraud and error in the benefit system provides valuable insights into the challenges faced by the department in maintaining the integrity of the welfare system. The report measures the extent of benefit spending lost through fraud, claimant error, and official error, and it highlights the areas of focus for the DWP in its efforts to combat these issues. One of the key areas of focus is Universal Credit, which continues to account for the largest proportion of benefit overpayments. The DWP estimated Universal Credit overpayments at 10.5% (£9.5 billion) in the year ending April 2026. This highlights the ongoing challenges faced by the DWP in ensuring the accuracy and integrity of Universal Credit claims. By comparison, the State Pension continued to record the lowest overpayment rate of all DWP benefits at 0.2% (£230 million). However, the report noted that historic Home Responsibilities Protection (HRP) errors remained the biggest reason for State Pension underpayments linked to National Insurance contribution records. These errors accounted for "£6 in every £10 underpaid due to Contributions." Pension Credit is also expected to remain under close scrutiny after the latest figures showed overpayments of 9.7% (£620 million) and underpayments of 1.3% (£80 million). Meanwhile, PIP is continuing to be included in the DWP's fraud and error measurement programme as the UK Government examines spending across disability and working-age benefits. PIP is a key disability benefit that provides between £121.20 and £778.40 every four-week payment period to more than 3.9 million people across England and Wales. The benefit has been replaced in Scotland for nearly half a million claimants by the devolved benefit, Adult Disability Payment. The DWP uses reviews of randomly selected claims, alongside administrative checks and wider analysis, to estimate levels of incorrect benefit payments across the system. The department stressed that the figures are estimates designed to measure overall levels of fraud and error in the benefits system rather than findings linked to individual claimants. Evan John, policy adviser at the national disability charity Sense, told the Daily Record: "Fraud is very uncommon amongst people claiming disability benefits, with the vast majority of funds being used as intended: offsetting the additional costs that come with being disabled, and enabling disabled people to afford the essentials. Benefits are an absolute lifeline for disabled people with complex needs." Sense is also urging the UK Government "to recognise how important disability benefits are for society, and commit to not making any further cuts to disability benefits during their time in government." The definitions of fraud, claimant error, and official error are crucial in understanding the different types of issues that can arise in the welfare system. Fraud occurs when a claimant meets all three of the following conditions: the conditions for receipt of benefit or the rate of benefit in payment are not being met, the claimant can reasonably be expected to be aware of the effect on their entitlement, and benefit payment stops or reduces as a result of the review. Claimant error occurs when a claimant provides inaccurate or incomplete information or fails to report a change in their circumstances, but there is no evidence of fraudulent intent. Official error occurs when a benefit has been paid incorrectly due to a failure to act, a delay, or a mistaken assessment by the DWP, a local authority, or HM Revenue and Customs (HMRC), to which no one outside of that department has materially contributed. In conclusion, the DWP's review of five major benefits for fraud and error in the 2026/27 financial year is an important step in ensuring the integrity of the welfare system. The report highlights the areas of focus for the DWP in its efforts to combat fraud, claimant error, and official error, and it provides valuable insights into the challenges faced by the department in maintaining the accuracy and integrity of benefit claims. While fraud is uncommon among people claiming disability benefits, the DWP must continue to work to ensure the integrity of the welfare system and to protect the interests of all claimants. The definitions of fraud, claimant error, and official error are crucial in understanding the different types of issues that can arise in the welfare system, and the DWP must continue to work to ensure that these definitions are accurately applied and that all claimants are treated fairly and equitably.