Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, what estimate he has made of the amount his Department will save as a result of limiting the backdating of housing benefit to a maximum of one month in each of the next four years; and how that estimate was calculated.

Although information is collected that would enable an estimate to be calculated, the variables in question have not be quality assured to sufficient standards to provide a response. To do so would result in disproportionate costs.