[1] In computing "net income" for the purposes of the cap, the permitted deductions would be federal and provincial income taxes, employment insurance premiums, Canada Pension Plan contributions, and any deductions that benefit the recipient spouse (e.g. medical or dental insurance, group life insurance and other benefit plans), but not mandatory pension deductions. Union dues and professional fees are already deducted from the spouses' gross incomes.
[3] R.S.B.C. 1996, c. 128, s. 1 "parent". Section 1(2) requires that the step-parent be married to the parent or that they lived together in a marriage-like relationship for at least two years.
[4] A reduced amount is usually ordered or agreed upon where the biological parent is already paying child support. Given the way the formula works, any reduction in the step-parent's child support would otherwise lead to an increase in the range for spousal support, an inappropriate result.