The Government’s own spending watchdog has hit out at overpayments made to benefit claimants, particularly those on housing benefit.

The Public Accounts Committee has criticised the Department of Work and Pensions for failing to tackle fraud and for making mistakes.

DWP is found to have overpaid benefits to the tune of £1.4bn between 2013 and 2014, with the highest number of overpayments (42%) in housing benefit.

The report recommends that DWP reviews how it allocates money and resources to tackling housing benefit fraud and error, and told it to report back within six months.

Margaret Hodge MP, chair of the Committee of Public Accounts, said: “Billions of pounds have been lost to the taxpayer as a result of the Department for Work and Pensions’ failure to tackle housing benefit fraud and error effectively.

“Around £12.6bn has been spent on housing benefit overpayments since 2000/01 – money that could have been used to improve the system.

“The size of overpayments is going up, not down.”

In the last financial year, of the £1.4bn of housing benefit overpayments, £900m was claimant error, £340m was claimant fraud and £150m was official error.

A DWP spokesperson said: “At the end of last year we brought in a new detection system that will cross-check all housing benefit claims against up-to-the-minute information on earnings and pension income.

“And we expect the ongoing introduction of Universal Credit to cut fraud and error by a further £1.5bn.”