The “Rule of 65” is a critical formula in Canada’s Spousal Support Advisory Guidelines (SSAG). If the lower-income spouse’s age at separation plus the total years the couple lived together equals 65 or more, the duration of spousal support is generally “indefinite.” This rule protects older spouses in Ontario from financial ruin.
When going through a separation in Ontario, the two most pressing questions are usually: “How much will I pay?” and “When does it finally end?” For couples ending a long-term marriage in cities like Brampton, Hamilton, or London, the end date is often the most heavily debated issue. Unlike child support, which typically ends when a child finishes school, spousal support has no automatic expiration date. 💰
As of May 2026, Ontario family courts and lawyers rely on the Spousal Support Advisory Guidelines (SSAG) to determine fairness. The SSAG introduced the “Rule of 65” specifically to protect older spouses who sacrificed their prime earning years for the family. Understanding how this mathematical formula works is vital whether you are the spouse requesting support or the one writing the monthly cheque. 🚨
Step-by-Step Process: Calculating the Rule of 65
Applying the Rule of 65 is not a random guessing game. It is a precise calculation based on the exact timeline of your relationship. If you are finalizing a divorce in the Superior Court of Justice, your lawyer will follow these specific steps to determine the duration of your support obligations. 📝
Step 1: Determine the Length of the Relationship
The calculation begins by looking at the total length of cohabitation, not just the legally married years. If you moved in together in 2006, married in 2010, and separated in 2026, the relationship length is 20 years, not 16. This total number of years is the first piece of the puzzle. 📅
Step 2: Add the Recipient’s Age at Separation
Next, you take the exact age of the support recipient (the lower-earning spouse) on the date of separation. For example, if the recipient is 48 years old at the time of separation, you take that number and add it to the 20 years of the relationship. In this scenario, 48 + 20 equals 68. 👤
Step 3: Evaluate the Rule of 65 Threshold
If the combined total of the age and the relationship length is 65 or higher, the SSAG recommends that the duration of support be “indefinite.” Because our example resulted in 68, the recipient qualifies for indefinite support. This rule acknowledges that a 48-year-old who has been out of the workforce for 20 years will struggle immensely to build a self-sufficient retirement. 📈
Step 4: Formalizing Indefinite Support
Once the Rule of 65 is met, your lawyers will draft the Separation Agreement stating that support will be paid on an indefinite basis. However, “indefinite” does not mean “infinite.” The agreement will include review clauses, allowing the support amount to be adjusted or terminated if a “material change in circumstances” occurs, such as the payer reaching the age of 65 and retiring. 🔒
Understanding Spousal Support Durations in Ontario
The length of the relationship heavily dictates the support timeline. 📊
| Relationship Scenario | Standard SSAG Duration Rule | Does Rule of 65 Apply? |
|---|---|---|
| Short Marriage (5 years), Age 30 | 2.5 to 5 years of support (0.5 to 1 year per year lived together). | No (30 + 5 = 35). Support has a strict end date. |
| Medium Marriage (15 years), Age 55 | Indefinite support. | Yes (55 + 15 = 70). Meets the Rule of 65. |
| Long Marriage (20+ years), Age 40 | Indefinite support. | No (40 + 20 = 60), but any marriage over 20 years is automatically indefinite anyway. |
How Much Does it Cost in Ontario?
Determining the duration is only half the battle; calculating the monthly payment requires professional software and legal advice. 💵
- Calculation Software: Ontario lawyers use specialized software (like DivorceMate) to run SSAG calculations. A lawyer may charge $300 to $600 CAD just to run these projections during a consultation.
- Mediation: If both spouses agree on the Rule of 65 but disagree on the monthly amount, hiring a family mediator usually costs $2,000 to $4,000 CAD to bridge the gap.
- Litigating Duration: Fighting against an indefinite support claim in court is expensive, often costing $15,000 to $25,000+ CAD per spouse in legal fees.
How Long Does the Process Take?
If the couple accepts the SSAG guidelines, negotiating an indefinite support agreement typically takes 2 to 4 months. However, if the paying spouse refuses to accept the Rule of 65, the resulting family court litigation can drag out for 18 to 24 months before a judge issues a final, binding order. 🕑
Frequently Asked Questions (FAQ)
Does “indefinite” mean I pay until the day I die?
No. Indefinite simply means there is no pre-determined end date written into the contract. Support can still be reduced or eliminated later if there is a major life change, such as normal retirement at age 65 or the recipient winning the lottery.
Does the Rule of 65 apply if our marriage was very short?
No. The SSAG includes an exception for short marriages. The Rule of 65 does not apply if the relationship was less than 5 years long, even if the recipient is 62 years old at the time of separation.
What happens if the recipient spouse gets remarried?
Remarriage does not automatically cancel indefinite spousal support in Ontario. However, the new spouse’s income significantly changes the recipient’s financial needs, which is a “material change” that allows you to apply to the court to reduce or terminate payments.
Are spousal support payments tax-deductible?
Yes. Under the Canada Revenue Agency (CRA) rules, periodic spousal support payments made under a written agreement or court order are fully tax-deductible for the payer, and taxable as income for the recipient.
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