Child support in Alberta is calculated under the Federal Child Support Guidelines, which apply the same way whether parents were married or common-law. While the framework is standardized, the details trip up a surprising number of parents.
The Basic (Table) Amount
The Guidelines set out table amounts based on:
- The paying parent's gross annual income
- The number of children being supported
- The paying parent's province of residence (Alberta has its own table)
This base amount is meant to cover ordinary day-to-day expenses and is generally paid by the parent with less parenting time to the parent with more, though the calculation differs for shared and split parenting arrangements.
Shared and Split Parenting Adjustments
- Shared parenting (each parent has the child at least 40% of the time) allows for a different calculation approach that considers both parents' incomes, not just the paying parent's table amount alone
- Split parenting (each parent has primary care of at least one child) results in an offset calculation between what each parent would owe the other
Section 7 "Special or Extraordinary" Expenses
Beyond the table amount, parents typically share additional costs proportionate to their incomes, including:
- Childcare expenses required for work or education
- Medical and dental expenses not covered by insurance
- Extracurricular activities that are extraordinary given the family's means
- Post-secondary education expenses
When the Table Amount Can Be Adjusted
Courts can deviate from the standard table amount in specific circumstances — such as undue hardship, income over $150,000, or a child who is over the age of majority — but these adjustments require a proper legal basis, not just a parent's preference.
Frequently asked questions
Does child support change if my income changes?
Yes — child support should be recalculated when either parent's income changes materially; many separation agreements include an annual income disclosure and recalculation process for this reason.
What counts as income for child support purposes?
Generally, gross income from all sources as determined under the Guidelines, which can include adjustments for self-employment income, dividends, or other non-standard income structures.
Can parents agree to a different amount than the Guidelines require?
Parents can agree to different arrangements, but a court reviewing the agreement will still consider whether it adequately provides for the child, based on the Guidelines framework.
This article provides general information about Alberta and federal child support law and is not legal advice. Book a consultation with GSD Law Group to calculate your specific situation.
Related reading: Spousal Support Calculations in Alberta
Contact GSD Law Group: Westwinds (403) 455-2151 · Savanna (403) 475-2157
