Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, what assessment her Department has made of the evidence each parent must provide in order to permit an accurate assessment of the level of child maintenance required to be paid.

The calculation is initially based on historic income information received directly from HM Revenue and Customs. Parents may need to supply additional evidence which is considered on a case by case basis.

Both parents have the right to request a mandatory reconsideration and supply further evidence to challenge a decision.