Section 1217RK | No account to be taken of amount if unpaid
From legislation.gov.uk
(1)In determining for the purposes of this Chapter the amount of costs incurred on a production of a concert or concert series at the end of a period of account, ignore any amount that has not been paid 4 months after the end of that period.
(2)This is without prejudice to the operation of section 1217QE (when costs are taken to be incurred).