The number of people receiving Britain’s main disability benefit has exceeded four million for the first time, according to newly released government figures, highlighting the growing pressure on the welfare system and reigniting debate over long-term benefit reform.
Data published by the Department for Work and Pensions (DWP) shows that 4.01 million people were entitled to claim Personal Independence Payment (PIP) in April 2026, an increase of more than seven per cent compared with the same period last year.
PIP is designed to help people with the additional costs associated with long-term physical or mental health conditions or disabilities. Unlike many other benefits, it is not means-tested and can be claimed by people who are in employment.
The latest figures reveal that mental health conditions now account for more than a third of all PIP claims. Generalised anxiety and depressive disorders remain the most commonly cited primary condition among claimants.
The data also shows a significant increase in claims linked to autism spectrum disorders, which have now overtaken osteoarthritis as the second most frequently recorded condition among claimants.
According to the figures, successful claims related to anxiety, depression, stress and autism continue to increase at a rate of around 100 additional cases each day.
The growing number of mental health-related claims is also reflected in the level of support being awarded. More than two in five claimants whose primary condition is a mental health disorder receive the highest level of daily living support available under PIP, worth around £10,000 per year.
By comparison, only around one quarter of claimants suffering from musculoskeletal conditions, including back and neck problems, receive the maximum award.
The trend comes against a backdrop of rapidly increasing welfare spending. The DWP is expected to spend approximately £32 billion on disability benefits for adults and pensioners during the current financial year.
Official forecasts suggest overall spending on sickness and disability benefits could exceed £100 billion annually by the end of the decade, placing increasing pressure on the public finances as government debt continues to rise.
The Office for Budget Responsibility has previously warned that health-related welfare spending has grown significantly since the pandemic, driven by a combination of worsening mental health, demographic changes, longer NHS waiting lists and a rise in the number of people reporting long-term health conditions.
Successive governments have struggled to reverse the trend. Under the previous Conservative government, ministers launched several attempts to reform incapacity and disability benefits, arguing that more support should be provided to help those capable of employment return to work.
Labour has also acknowledged the need for reform, although critics argue the party has retreated from more ambitious savings proposals following opposition from its own MPs.
Helen Whately, the Shadow Work and Pensions Secretary, said the latest figures demonstrated the need for fundamental changes to the system.
She argued that too many people are being placed on long-term benefits rather than being supported into employment and independence.
The Conservatives have pledged to conduct a comprehensive review of PIP, including examining eligibility criteria and accelerating assessments, as part of wider plans to reduce welfare spending.
Meanwhile, Work and Pensions Secretary Pat McFadden has stated that welfare reform is necessary and has commissioned Disability Minister Sir Stephen Timms to review the future of PIP.
However, the review’s remit does not include identifying savings, prompting criticism from opponents who believe Labour has stepped back from efforts to control the rising welfare bill.
The debate has also widened beyond welfare policy. With Britain facing mounting defence commitments, sluggish economic growth and a national debt expected to exceed £3 trillion, politicians across the political spectrum are increasingly questioning how the country can sustain rapidly rising spending on health-related benefits while meeting other national priorities.
Even some senior Labour figures have signalled concern. Greater Manchester Mayor Andy Burnham recently argued that Britain should not be “squeamish” about examining welfare spending if additional resources are needed elsewhere, including for national defence.
The latest figures are likely to intensify calls for reform as ministers confront one of the fastest-growing areas of public expenditure, while balancing support for genuinely vulnerable people against the long-term sustainability of the welfare system.
