- Unmarried couples can make a separation agreement under the Family Law Act just as married couples can.
- Ontario's equalization regime does not apply to unmarried couples, so property claims are often settled in the agreement.
- Support, children, pensions and inheritance rights can all work differently for common-law partners, so the details are worth confirming with a lawyer.
Living together without marrying does not leave you without options when the relationship ends. It does mean the rules for dividing property are different from those that apply to married spouses.
This article explains what a separation agreement can cover for common-law partners in Ontario, where the rules differ from marriage, and what to think about before you sign.
Yes, common-law partners can sign one
Two people who lived together and are now living separate and apart may make an agreement setting out their rights and obligations. This applies to married and unmarried couples alike. Separation needs no court order and applies to married and common-law couples.
The agreement is a domestic contract, so it must be in writing, signed by the parties and witnessed to be enforceable.
How property differs from married spouses
Married spouses use equalization of net family property, where the spouse with the larger net family property pays the other an equalization payment. Ontario's equalization regime does not apply to unmarried couples. Common-law couples are not legally required to split property acquired while living together, and household items and other property belong to the person who bought them.
There is an important qualification. A partner who contributed to property the other partner owns may have a right to part of it. Unless the owner agrees to repay, the contributing partner may have to go to court to get the contribution back. The separation agreement is where these claims are settled.
| Issue | Married spouses | Common-law partners |
|---|---|---|
| Property division | Equalization of net family property | No equalization; property generally belongs to the person who bought it |
| Family home | Full value shared, divided equally unless the spouses agree otherwise | Contribution claims may be settled in the agreement |
| Inheriting with no will | Entitlement may exist, but not for a separated spouse | No inheritance under the Succession Law Reform Act |
What the agreement can cover
- Property and contribution claims, including who keeps what and any repayment.
- Spousal support, which is not automatic. A person may be entitled if they lived together as a couple for at least three years, or were in a relationship of some permanence and had a child together.
- Parenting: a parenting plan can set out each parent's time and who makes major decisions.
Child-related terms are not fixed by your agreement alone. A court may disregard a parenting provision if doing so is in the child's best interests, and may disregard an unreasonable child support provision.
Pensions and the Canada Pension Plan
Canada Pension Plan contributions made while partners lived together can be split after separation from a common-law relationship. Common-law partners generally must apply for a split within 48 months of starting to live apart, while divorced spouses and separated married spouses have no deadline unless the spouse dies. A private agreement generally cannot stop a split, because Ontario is not among the provinces with listed exceptions.
For workplace pensions, ask the pension administrator for information about the value of a pension. How a pension applies to your situation is worth confirming with a lawyer.
What to do next
- List what each of you owns and owes, and share it openly before signing.
- Note the date you started living apart, because the CPP split deadline for common-law partners runs from it.
- Each get your own legal advice, since Ontario guidance recommends separating spouses each have their own lawyer.
- Sign with a witness so the agreement meets the Act's requirements.
If you want the Family Responsibility Office to enforce the support terms, the agreement must first be filed with the Ontario Court of Justice or the Family Court of the Superior Court of Justice, and then registered with the Family Responsibility Office. The Family Responsibility Office enforces only the support terms, and a recipient can instead choose not to use it and go to court to enforce the separation agreement directly.
Frequently asked questions
Do common-law partners split property equally in Ontario?
Not automatically. Ontario's equalization regime does not apply to unmarried couples, and common-law couples are not legally required to split property acquired while living together. A partner who contributed to property the other owns may have a claim.
Can a common-law partner claim spousal support?
Possibly. Support is not automatic, but a person may be entitled if they lived together as a couple for at least three years, or were in a relationship of some permanence and had a child together.
Will my common-law partner inherit if there is no will?
Ontario guidance says a common-law spouse does not inherit under the Succession Law Reform Act when there is no will. A person who depended on the deceased for support can claim against the estate.
Is there a deadline to split Canada Pension Plan credits?
Common-law partners generally must apply within 48 months of starting to live apart. Either person can apply, online or on form ISP1901.
Sources
- Family Law Act, R.S.O. 1990, c. F.3 (CanLII), ss. 51, 54 — canlii.org
- Family Law Act, R.S.O. 1990, c. F.3 (CanLII), s. 56(4) — canlii.org
- Ontario.ca – Spousal support — ontario.ca
- Ontario.ca – Parenting time, decision-making responsibility and contact — ontario.ca
- Ontario.ca – Dividing property when a marriage or common law relationship ends — ontario.ca
- Canada.ca – Divorced or separated: Splitting Canada Pension Plan credits — canada.ca
- Ontario.ca – Child and spousal support — ontario.ca
- Department of Justice Canada – About Divorce and Separation — justice.gc.ca
Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.
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