TFC55100 | Assessment and enforcement of recoverable top-up payments: introduction
From HM Revenue & Customs · Tax-Free Childcare Technical Manual
Childcare Payments Act 2014, section 41(1)
HMRC may assess and recover top-up payments that are recoverable under sections 35 to 40 of the Act. HMRC must notify a person if it assesses that they are liable to repay such an amount.