Effect on the maintenance calculation – additional income grounds
73.—(1) Subject to paragraph (2) and regulation 74 (effect on maintenance calculation – general), where the variation agreed to is one falling within Chapter 3 (grounds for variation : additional income) effect is to be given to the variation by increasing the gross weekly income of the non-resident parent which would otherwise be taken into account by the weekly amount of the additional income except that, where the amount of gross weekly income calculated in this way would exceed the capped amount, the amount of the gross weekly income taken into account is to be the capped amount.
(2) Where a variation is agreed to under this Chapter and the non-resident parent’s liability would, apart from the variation, be the flat rate (or an amount equivalent to the flat rate), the amount of child support maintenance which the non-resident parent is liable to pay is a weekly amount calculated by adding an amount equivalent to the flat rate to the amount calculated by applying Schedule 1 to the 1991 Act to the additional income arising under the variation.