Child Support Guidelines in Canada, 2026

Do you have to pay child support in Canada after a child turns eighteen?How far back can retroactive child support go? Can parents agree to no child support? The newest edition of Child Support Guidelines in Canada is designed to provide a clear, comprehensive analysis of the relevant case law and to provide a quick and efficient way for readers to access pertinent information on all aspects of the Federal Child Support Guidelines and corresponding provincial guidelines. A companion to Canadian Family Law, Child Support Guidelines in Canada has been written to assist professionals, including judges, practising lawyers, mediators, and arbitrators, in the resolution of child support disputes arising from parental separation or divorce.The newest edition of Child Support Guidelines in Canada is updated to include a wide variety of significant judgments such as the determination of income for purposes of child support; the appropriate filing of motion materials in family proceedings; and key points a court must consider on a motion to strike a pleading, among others. The 2026 edition of this essential text includes the most recent, significant Canadian legislation and cases that professional advisers and decision-makers need to be aware of in order to properly discharge their responsibilities.