Spousal Support in Ontario: Complete Guide
Understanding eligibility, calculation, duration, and enforcement of spousal support obligations under Ontario family law
Understanding eligibility, calculation, duration, and enforcement of spousal support obligations under Ontario family law
Legally Reviewed By
Deepa Tailor, Family Law Specialist
Spousal support in Ontario is financial assistance paid by one spouse to the other after separation or divorce. Eligibility depends on need, ability to pay, and the roles each spouse played during the marriage. Amounts and duration are calculated using the Spousal Support Advisory Guidelines (SSAG), which provide ranges based on income and length of marriage. Support can be temporary or indefinite, and is modifiable if circumstances change.
Ontario courts recognize three distinct bases for awarding spousal support under the Divorce Act and Family Law Act.
Compensation for economic disadvantages arising from the marriage or its breakdown, such as career sacrifices to raise children or support the other spouse's career.
Based on an express or implied agreement between spouses regarding financial support obligations after separation.
Support based on the recipient spouse's inability to meet their own reasonable needs, regardless of economic disadvantage from the marriage.
The Spousal Support Advisory Guidelines (SSAG) use mathematical formulas to generate ranges for amount and duration. The formula depends on whether there are dependent children.
Amount = 1.5% to 2% of the difference between gross incomes × length of cohabitation
Duration ranges from 0.5 to 1 year per year of marriage
Amount = 1.5% to 2% of the difference between gross incomes × length of cohabitation
Duration ranges from 0.5 to 1 year per year of marriage, with indefinite support possible after 20+ years
How long spousal support lasts depends on the length of the marriage and the ages of the spouses at separation.
0.5 to 1 year per year of marriage
3-year marriage = 1.5 to 3 years of support
0.5 to 1 year per year of marriage
12-year marriage = 6 to 12 years of support
Indefinite support likely
25-year marriage = indefinite or until retirement
Indefinite if age + marriage years ≥ 65
Age 50 + 15 years married = indefinite support
The SSAG provides ranges, not fixed rules. Courts consider factors like the recipient's ability to become self-sufficient, health issues, age, and the roles each spouse played during the marriage. Indefinite support does not mean permanent — it means no fixed end date, but it can still be reviewed or terminated if circumstances change.
Authoritative sources for spousal support law in Ontario
Federal legislation governing spousal support for married spouses
Provincial legislation governing spousal support for common-law and married spouses
Official SSAG formulas and commentary from the Department of Justice
Search Ontario spousal support decisions and precedents
Common questions about spousal support in Ontario
No. Lower income alone does not guarantee spousal support. Courts consider whether you suffered an economic disadvantage from the marriage, your ability to become self-sufficient, the roles each spouse played, and the length of the marriage. If you were financially independent throughout a short marriage, you may not be entitled to support even if your ex earns more.
Family Law Specialist | Tailor Law
Deepa Tailor is a leading family law lawyer in Ontario with over 15 years of experience representing clients in complex spousal support, child custody, and property division matters. She is known for her strategic approach to high-conflict cases and her commitment to achieving fair, enforceable outcomes for her clients. Deepa is a frequent speaker on family law topics and has been recognized by her peers for excellence in advocacy.
Our experienced family law team can help you understand your rights, calculate fair support amounts, and enforce or defend against spousal support claims.
Accurate support calculations using the latest SSAG formulas
Enforceable separation agreements with clear support terms
Strategic litigation for contested spousal support matters