The Child Support (Maintenance Assessments and Special Cases) Regulations 1992

Apportionment of housing costs: exempt income

17.  For the purposes of calculating or estimating exempt income the amount of the housing costs of a parent shall be—

(a) where the parent does not have a partner, the whole amount of the housing costs;

(b) where the parent has a partner, the proportion of the amount of the housing costs calculated by multiplying those costs by—

where—

• A is the number of relevant children (if any);

• B is the number of children in that parent’s family (if any);

(c) where the parent is a member of a polygamous marriage the proportion of the amount of the housing costs calculated by multiplying those costs by—

where—

• A and B have the same meanings as in sub-paragraph (b); and

• X is the number which is one less than the number of partners.