SolvedCBTM07028 | Prescribed conditions for a child or qualifying young person: Education and training condition - Meaning of ‘remunerative work’
From HM Revenue & Customs · Child Benefit Technical Manual
Child Benefit (General) Regulations 2006, regulation 1, (3)
Remunerative work means work of not less than 24 hours per week that is undertaken for payment or in expectation of payment.