TCM0126300 | Eligibility - remunerative work (general): Work normally done (Info)
From HM Revenue & Customs · Tax Credits Manual
Count work done only if
it’s work the customer normally does
and
it’s likely to last for a period of four weeks or more (beginning with the week of claim).
The word ‘normally’ should be given its ordinary everyday meaning of ‘regularly, usually, typically’. It doesn’t mean anything that’s abnormal or exceptional.