Spousal Support Calculator Ontario

How is spousal support calculated in Ontario?

Spousal support in Ontario is calculated using the Spousal Support Advisory Guidelines (SSAG), the same formula-based framework used across Canada. However, the legal path to getting spousal support in Ontario depends on whether you are divorcing or separating without a divorce. Divorcing spouses apply under the federal Divorce Act (section 15.2). Spouses who separate without filing for divorce, including common law partners, apply under the Ontario Family Law Act (FLA), sections 29 through 33.

Regardless of which statute applies, Ontario courts use the SSAG Without Child Support formula for couples with no dependent children. The formula takes the gross income difference between the two spouses, multiplies it by 1.5% to 2%, and then multiplies that by the number of years of cohabitation or marriage. This produces an annual range from low to high. The formula caps at 37.5% to 50% of the gross income difference, which is reached at 25 years together.

Ontario courts are known for applying the SSAG closely and consistently. Unlike some provinces where judges exercise broader discretion, Ontario family courts tend to start at the mid-range of the SSAG formula and adjust only when specific facts justify a departure. A 2015 review of Ontario Superior Court decisions found that roughly 70% of spousal support awards fell within the SSAG ranges, with most clustering around the midpoint.

The distinction between the FLA and the Divorce Act matters for two reasons. First, the FLA provides a broader definition of spouse that includes common law partners who have cohabited for at least three continuous years, or who are in a relationship of some permanence and have a child together. Second, equalization of net family property under the FLA (available only to married spouses) can affect spousal support. If property division already compensates one spouse for economic disadvantage, the court may reduce the support amount or duration. Ontario courts in cases like Boston v Boston (2001 SCC) have addressed the interaction between property division and ongoing support.

Does common law qualify for spousal support in Ontario?

Yes. Common law partners in Ontario can claim spousal support under the Family Law Act, but they must meet specific eligibility thresholds. Section 29 of the FLA defines a "spouse" for support purposes as including two people who have cohabited continuously for at least three years, or who are in a relationship of some permanence and are the parents of a child together.

The three-year rule is strict. Ontario courts count continuous cohabitation from the date the couple began living together in a conjugal relationship. Temporary absences (such as work travel) do not break continuity, but a genuine separation does. If you separated after two years and eight months of cohabitation without a child together, you do not qualify for spousal support under the FLA. There is no "close enough" exception.

The child exception is significant. If you have a child together and your relationship has some permanence, you can claim support under the FLA even if you cohabited for less than three years. Ontario courts interpret "relationship of some permanence" broadly; it does not require cohabitation at all, though the length and nature of the relationship must show a genuine commitment.

Once a common law partner establishes eligibility under the FLA, the support calculation works the same way as it does for married couples. Ontario courts apply the SSAG formula to common law relationships identically. The amount and duration are based on the income difference and years of cohabitation, not on whether the couple was legally married. The key difference is that common law partners in Ontario do not have a right to equalization of net family property, which means spousal support is often the primary mechanism for addressing economic imbalance after separation.

This is a notable distinction from other provinces. In British Columbia, for example, common law partners qualify after just two years of cohabitation. In Ontario, the threshold is three years unless a child is involved. If you are unsure whether your relationship meets the FLA definition, consult a family lawyer before assuming you are ineligible.

How long does spousal support last in Ontario?

The SSAG provides a duration range that Ontario courts follow closely. For marriages or cohabitations without dependent children, the general formula sets duration at 0.5 to 1 year of support for each year together. A 12-year relationship produces a duration range of 6 to 12 years of spousal support payments.

Two rules trigger indefinite duration in Ontario, meaning support with no pre-set end date. The first is the 20-year rule: if the marriage or cohabitation lasted 20 years or longer, duration becomes indefinite regardless of other factors. The second is the Rule of 65: if the recipient's age at separation plus the length of the marriage or cohabitation equals 65 or more, and the relationship lasted at least 5 years, duration becomes indefinite.

Ontario courts apply the Rule of 65 widely and predictably. A 57-year-old recipient after an 11-year marriage qualifies (57 + 11 = 68). A 50-year-old after a 10-year marriage does not (50 + 10 = 60). The rule reflects the reality that older recipients face diminishing prospects for re-entering the workforce and rebuilding earning capacity. Ontario judges treat the Rule of 65 as a strong presumption, not merely a guideline.

Indefinite does not mean permanent or unchangeable. It means there is no pre-set termination date written into the order. The payor can apply to vary or terminate support if circumstances change materially. Common variation triggers in Ontario include the payor's retirement, the recipient achieving self-sufficiency, the recipient entering a new relationship that changes their financial needs, or a significant change in either party's income. Ontario courts set regular review dates in many indefinite orders, requiring the parties to return to court or mediation to reassess the support arrangement.

For short relationships (under 5 years) without children, Ontario courts typically order support for 1.5 to 5 years. The purpose is to give the lower-earning spouse a transitional period to adjust, not to provide long-term maintenance. Ontario judges in these cases often attach conditions requiring the recipient to demonstrate efforts toward self-sufficiency.

When is spousal support denied in Ontario?

Spousal support is not automatic in Ontario. A court must first establish that the applicant has a legal entitlement to support, either under the Divorce Act or the Family Law Act. Several Ontario-specific circumstances commonly lead to a denial.

Common law partners who do not meet the FLA threshold are the most common group denied support in Ontario. If you cohabited for less than three continuous years and do not have a child together, you have no statutory right to spousal support under Ontario law. This catches many people by surprise, particularly those who cohabited for two years and assumed they had the same rights as married couples.

A valid domestic contract can eliminate spousal support entirely. Ontario courts enforce marriage contracts, cohabitation agreements, and separation agreements that waive or limit support, provided both parties received independent legal advice and there was full financial disclosure. The Supreme Court of Canada in Miglin v Miglin (2003) set the framework Ontario courts follow when assessing whether a domestic contract should be upheld. If the agreement was fair at the time it was signed and remains fair in its application, Ontario courts will enforce it.

Short marriages where both spouses maintained independent careers and similar incomes are frequently denied. If there is no income gap and no economic disadvantage arising from the relationship, the SSAG formula produces zero or near-zero support. Ontario courts will not award support simply because a marriage ended.

• ✓Common law relationship under 3 years without a child: the FLA does not recognize you as a spouse for support purposes
• ✓Valid domestic contract waiving support: Ontario courts enforce marriage contracts and cohabitation agreements that limit or exclude spousal support, as long as both parties had independent legal advice and full financial disclosure
• ✓No income disparity: if both spouses earn comparable incomes, the SSAG formula produces minimal or zero support, and courts will not manufacture an entitlement
• ✓Recipient is already self-sufficient: if the lower-earning spouse can meet their own reasonable needs without support, entitlement may not be established even after a long marriage
• ✓Failure to pursue self-sufficiency: Ontario courts expect recipients to make genuine efforts to re-enter the workforce. The Supreme Court in Moge v Moge (1992) emphasized the goal of economic self-sufficiency, and Ontario judges apply this expectation actively
• ✓Equalization already compensates: for married spouses, if the equalization of net family property under the FLA already addresses the economic imbalance, the court may reduce or deny ongoing spousal support
• ✓Short marriage with no children and no career sacrifice: if neither spouse altered their career or lifestyle for the relationship, Ontario courts regularly deny support after marriages under 3 to 5 years

Ontario worked example: Toronto couple with equalization

Sarah and James are a married couple in Toronto separating after 14 years of marriage. Sarah is a marketing director earning $130,000 gross per year. James left his career as an accountant 10 years ago to raise their children (now teenagers) and currently earns $35,000 working part-time. James is 48 years old.

Step 1: Determine eligibility. Sarah and James are married, so the Divorce Act applies since they are filing for divorce. Even if they only separated without divorcing, the FLA would also provide entitlement. James has a strong compensatory claim because he left his career to raise children.

Step 2: Calculate the income difference. Sarah earns $130,000 and James earns $35,000. The gross income difference is $95,000.

Step 3: Apply the SSAG Without Child Support formula. Low annual support: $95,000 x 1.5% x 14 = $19,950 per year ($1,663/mo). High annual support: $95,000 x 2% x 14 = $26,600 per year ($2,217/mo). Mid-range: $23,275 per year ($1,940/mo). Ontario courts would likely start at or near the mid-range given the strong compensatory basis and James's significant career sacrifice.

Step 4: Determine duration. The general SSAG formula gives 7 to 14 years of support (0.5 to 1 year per year of marriage). Check the Rule of 65: James is 48 and the marriage lasted 14 years, so 48 + 14 = 62. This does not reach 65, so the Rule of 65 does not apply. The 20-year rule also does not apply. Duration is 7 to 14 years.

Step 5: Consider equalization. As married spouses in Ontario, Sarah and James will also divide their net family property under the FLA. Suppose the equalization payment to James is $85,000. This lump sum addresses part of the economic imbalance, but Ontario courts generally treat equalization and spousal support as serving different purposes. Following Boston v Boston, the court will consider whether the equalization payment covers part of the compensatory claim, but it will not eliminate spousal support when there is an ongoing income gap of this magnitude. The monthly support figure is likely to remain in the SSAG mid-range.

This example illustrates how Ontario family law interweaves property division with spousal support in a way that other provinces do not. The equalization framework is unique to Ontario married couples and adds a layer of complexity that common law couples do not face.

Does spousal support end when you remarry in Ontario?

No. Remarriage does not automatically end spousal support in Ontario. This is one of the most common misconceptions in Ontario family law. Whether you are the payor or the recipient, entering a new marriage or common law relationship does not by itself terminate an existing spousal support obligation.

The law treats the payor's remarriage and the recipient's remarriage differently. If the payor remarries, Ontario courts generally hold that the new spouse's income does not reduce the payor's support obligation. The payor chose to take on new financial responsibilities, and that choice does not diminish the obligation owed to the former spouse. Ontario courts have consistently upheld this position.

If the recipient remarries or enters a new common law relationship, the situation is more nuanced. The new partner's income does not directly factor into the SSAG formula, but it can affect the recipient's overall financial needs. If the recipient's new partner has a high income and the recipient's standard of living has improved significantly, the payor can bring a motion to vary the support order. Ontario courts will consider whether the original basis for support still exists.

The key legal mechanism is a variation application under section 17 of the Divorce Act or section 37 of the FLA. To succeed, the payor must demonstrate a material change in circumstances. Remarriage alone is not enough. The payor must show that the recipient's financial needs have genuinely changed as a result of the new relationship. Ontario courts evaluate these applications on a case-by-case basis, looking at the new household's finances, the recipient's own income, and the original reasons for the support award.

In practice, Ontario courts reduce or terminate support after the recipient's remarriage only when the new relationship has substantially changed the recipient's financial picture. A recipient who remarries someone with a comparable or higher income than the former payor has a weaker argument for continued support. A recipient who remarries someone with a modest income may see little or no change to the support order. The compensatory basis for support (career sacrifices made during the first marriage) survives remarriage because the economic disadvantage from the original relationship does not disappear when a new relationship begins.