Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, what estimate she has made of the number of claimants who will undergo natural migration from legacy benefits into universal credit in 2019 in (a) the Vale of Clwyd, (b) Wales, and (c) the UK.

Claimants who move from existing benefits to Universal Credit do so because they have had a significant change in their circumstances that would previously have triggered a new claim to an existing benefit or tax credit.

As claimants only move when they have had a significant change in their circumstances we are unable to estimate this.