Thousands of hard-up families in Bradford have received the wrong tax credit payments for the third year in a row.

Figures published yesterday show 45 per cent of the 64,100 families in receipt of tax credits during 2005/6 were either over or underpaid.

The overpayments, affecting 18,700 claims across Bradford, added up to £16 million - equivalent to £856 per household.

HM Revenue and Customs will try to reclaim the vast majority of overpayments, threatening thousands of families with financial hardship.

Meanwhile 10,300 households were underpaid by a total of £6.3 million - £611 each on average. They will be compensated with extra payments.

Stephen Timms, Chief Secretary to the Treasury, said yesterday: "The Tax Credit system has already reduced child poverty, increased incentives to work and reduced the tax burden on low to middle income families."