This paper reviews section 7 of the Federal Child Support Guidelines and the Alberta Child Support Guidelines, which allow parents to seek additional reimbursement for special or extraordinary expenses over and above the regular child support amount. In particular, this paper considers the following: calculating income for the purposes of section 7 expenses; determining whether an expense falls under section 7, and if it is necessary and reasonable; determining the onus and evidence needed; and determining extraordinary expenses. In addition, this paper includes a discussion of court discretion, fairness, and consent, and a review of the Alberta Maintenance Enforcement Program in the context of section 7 expenses.