£16,000 Million in unclaimed benefits and tax credits. The DWP have published research showing millions of people who are entitled miss out on benefits and tax credits every year. The main means tested benefits- £6,300 – £10,500 million was left unclaimed in 2007- 08. Tax Credits- £6,000 million was left unclaimed in 2007-08. In particular- Housing Benefit £1,350 – £2,470 million goes unclaimed each year. 600,000 – 990,000 people lose out. Pension Credit has seen a 10% rise in those claiming since 1997 probably due to the Governments pro active approach to encouraging claims.