Common-Law Spousal Support in Ontario: Are You Entitled?

Breaking up a long-term common-law relationship can feel just as disorienting as divorce — sometimes more so, because many people don't realize that the law treats common-law partners differently from married couples. The good news: if your relationship was long enough, or if children were involved, Ontario law may entitle you to spousal support, or require you to pay it.

Understanding how common-law spousal support in Ontario works starts with a deceptively simple question: did your relationship meet the legal threshold? Everything flows from there — who can ask, on what grounds, and how courts decide how much and for how long.

This article walks through the key concepts in plain language. It won't predict your outcome — that depends on facts unique to your situation — but it will give you a solid foundation before you speak with a lawyer.

The Threshold: Does Your Relationship Qualify?

Unlike married spouses, common-law partners don't automatically have the right to seek spousal support under the Family Law Act (Ontario). The Act sets a qualifying threshold. As of writing — verify the current rules with a lawyer, as legislation can change — a common-law couple generally qualifies if they:

• Cohabited continuously for at least three years, or
• Cohabited in a relationship of some permanence and have a child together (with the cohabitation and child condition often described as requiring at least one year together, though the precise statutory language matters — verify this with a lawyer).

If your relationship doesn't meet either threshold, support obligations under the Family Law Act typically don't apply, no matter how long you were emotionally committed or how intertwined your finances became. This is one of the sharpest differences between common-law and married status in Ontario.

If you do meet the threshold, you're in the right territory to ask the next question: what grounds support your claim?

The Three Grounds for Entitlement

Meeting the cohabitation threshold opens the door, but it doesn't guarantee support. Courts look for at least one recognized legal basis — a "ground" — before they'll order it.

Compensatory Support

This ground addresses economic disadvantage that flows directly from the relationship. Classic examples:

• One partner scaled back their career or education to raise children or support the other's career
• One partner relocated for the other's work, sacrificing their own professional network
• One partner contributed significantly to the other's business or assets without receiving fair compensation

The idea is that the relationship itself created a financial cost for one person and a corresponding benefit for the other. Compensatory support is meant to acknowledge and partially offset that imbalance.

Non-Compensatory Support

Sometimes there's no clear career sacrifice or economic contribution to point to, but one partner still ends up in genuine financial need after the relationship ends. That's the non-compensatory ground — need on one side, ability to pay on the other.

This ground is often relevant in longer relationships where one partner simply can't become financially independent quickly, regardless of the reason. It's not about fault or what the higher-earning partner "did" — it's about where each person stands financially once the relationship is over.

Contractual Support

If you and your partner made a cohabitation agreement that included provisions for support, those terms can be enforceable — and binding. Courts generally respect agreements made freely, with independent legal advice, and with proper financial disclosure.

This can cut both ways: a cohabitation agreement might create entitlement to support even where the statutory threshold isn't met, or it might validly waive support rights that would otherwise exist. If you signed anything during the relationship, get it reviewed.

Entitlement vs. Quantum: Two Separate Questions

This distinction trips people up, so it's worth being direct about it.

Entitlement is the threshold question: does this person have the right to any support at all? Courts answer this first.

Quantum (amount and duration) only comes into play once entitlement is established. Getting past the entitlement stage doesn't mean the number will be large or the duration long — those are determined separately, based on a different set of factors.

Many people expect a formula, but Ontario courts don't apply one mechanically. They use the Spousal Support Advisory Guidelines (SSAG) — a tool developed to promote consistency and predictability. The SSAG are not binding law; they're a framework that generates ranges courts frequently refer to. A judge can depart from the SSAG range with good reasons, and the ranges themselves depend on inputs like income, length of relationship, and the presence of children.

What Courts Weigh When Setting Amount and Duration

Once entitlement is established, courts consider a cluster of factors:

• Length of the relationship — longer relationships generally support higher amounts and longer (sometimes indefinite) duration
• Roles during the relationship — who was the primary earner, who was the primary caregiver, how did the division of labour shape each person's current position?
• Income disparity — the gap between what each partner currently earns (or can earn) is central to both need and ability to pay
• Ability to become self-sufficient — courts don't want support to last indefinitely if the recipient can reasonably re-establish themselves; but they also won't impose an unrealistic timeline
• Age and health — these affect earning capacity and how quickly someone can realistically retrain or re-enter the workforce
• Childcare responsibilities — if one partner continues to have primary care of children after separation, that affects both their earning capacity and the other partner's obligations

Support can be time-limited (meant to bridge a transition period) or indefinite (more common in very long relationships or where self-sufficiency isn't realistic). "Indefinite" doesn't mean permanent — it means no end date is set at the outset, and the order can be reviewed as circumstances change.

Why Common-Law Support Can End the Moment Cohabitation Ends

Here's a point that surprises many people: if your relationship didn't meet the statutory threshold at the time you separated, no amount of shared history will create an obligation. Support rights don't accumulate like pension credits. If you separated one month before hitting the three-year mark with no children in the picture, the threshold likely isn't met — and neither party has a claim under the Family Law Act.

This is one reason cohabitation agreements matter. Couples who want to provide for each other contractually, regardless of how long they're together, can build that in. Without an agreement, you're relying entirely on the statutory framework.

Frequently asked questions