Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, with reference to page 192 of the Office of Budget Responsibility's report, Economic and fiscal outlook, published in March 2016, how the estimated savings of £0.8 billion by 2020-21 from the minimum income floor of universal credit were calculated.

The savings were estimated using DWP's and HMRC's models of the tax and benefit system. Extracting the full details of the calculations carried out within the models would only be possible at disproportionate cost.