TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Licensed by the Law Society of OntarioFlat fees published upfrontWe reply to messages within 1 business daySign in
Home/Articles/Family Law
№ 77 Family Law

Moving In With a Partner Who Owns the Home: Your Rights in Ontario

Moving into your partner's home in Ontario? See what interest you gain, what the law says about money you contribute, and how to protect yourself.

Family Law5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
← All articles
Key takeaways
  • Moving in with a partner who owns the home does not give you ownership; each partner keeps the property they bought.
  • If you contributed to property your partner owns, you may have a right to part of it, but you may have to go to court to claim it.
  • A written, signed and witnessed cohabitation agreement is the clearest way to protect your money.

Moving into a partner's house is a big step, and money questions often get pushed aside. You may be paying for renovations, covering part of the mortgage or simply giving up your own place, and wonder what you get in return.

In Ontario, the rules for unmarried partners are quite different from the rules for married spouses. This article explains what moving in does and does not give you, how contributions are treated, and how to protect yourself.

What moving in does not give you

Ontario does not divide property between common-law couples when they separate. Each partner keeps the property they bought, and neither has a right to share the other's increase in property value. Furniture, household items and other property belong to the person who bought them.

The special protections for a family home are also limited. The Family Law Act defines a matrimonial home as property ordinarily occupied by a person and their spouse as their family residence, and because spouse has the married meaning there, those protections do not cover unmarried partners. Whether living in your partner's home gives you any interest in it beyond that depends on the facts, so it is worth confirming with a lawyer.

IssueMarried spousesUnmarried partners
Property division and matrimonial homeCovered by the Family Law Act definition of spouseNot covered by that definition
Increase in property valueDepends on your situation; worth confirming with a lawyerNo right to share the other's increase
Intestate inheritanceA married spouse can inherit, unless the spouses were separated at the time of deathDoes not inherit without a will

Money you put in

There is an important exception. A common-law partner who contributed to property the other owns may have a right to part of it. Unless the owner agrees to pay the contribution back, the partner may have to go to court.

Whether and how much you can claim depends on the facts, including what you paid, why, and what was understood. A lawyer can assess how those facts fit the law. Good records make a real difference, because they help show what you contributed and why.

Putting your arrangement in writing

Unmarried partners who are cohabiting, or who intend to cohabit, may make a cohabitation agreement about their rights and obligations, including property and support. It is unenforceable unless it is in writing, signed by both partners and witnessed.

Ontario's guidance advises that each partner speak to a different lawyer and that you exchange financial information before signing. That matters because a court may set aside a domestic contract if a party failed to disclose significant assets, debts or other liabilities, or did not understand its nature or consequences.

Some limits apply. A cohabitation agreement cannot deal with decision-making responsibility or parenting time for children. A court may also set aside a support provision or waiver in some situations, such as where it results in unconscionable circumstances. If you later marry each other, the agreement is deemed to be a marriage contract.

If the relationship ends or your partner dies

For support after separation, unmarried partners count as spouses if they have cohabited continuously for at least three years. They also count, however long they lived together, if they cohabited in a relationship of some permanence and are the parents of a child. Support is separate from ownership of the house.

If your partner dies without a will, a common-law spouse does not inherit under the Succession Law Reform Act. However, if the deceased did not make adequate provision for the proper support of their dependants, the court may order support out of the estate on application. A dependant includes a spouse the deceased was supporting, or was legally obliged to support, immediately before death. For that purpose, spouse includes unmarried partners who cohabited for three years or had a child in a relationship of some permanence.

An application may not be made more than six months after the grant of letters probate or letters of administration. The court may allow a later application, but only for the part of the estate not yet distributed. If this applies to you, get advice quickly.

What to do next

A lawyer can review your situation and tell you how these rules apply before you commit money.

Frequently asked questions

Do I get any ownership in my partner's house by living there?

Not automatically. Ontario does not divide property between common-law couples, and each partner keeps the property they bought. If you contributed to property your partner owns, you may have a right to part of it.

Can I be forced to leave if we split up?

The matrimonial home protections do not cover unmarried partners. Whether you must leave, and on what timeline, depends on the facts, so speak with a lawyer if this is a concern.

Do I need a cohabitation agreement?

It is not required, but unmarried partners may make one about property and support. It must be in writing, signed and witnessed to be enforceable.

What if my partner dies and I lived in their home?

You do not inherit without a will under the Succession Law Reform Act. For dependant support, spouse includes unmarried partners who cohabited for three years or had a child in a relationship of some permanence. If you qualify and the deceased was supporting you, or was legally obliged to support you, immediately before death, you may be able to apply for support from the estate. The application may not be made more than six months after the grant of letters probate or letters of administration, though the court may allow a later one for the part of the estate not yet distributed.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

This is a family law question

Start a file online — flat, published fees, reviewed by a licensed lawyer before a dollar is owed.

ContactStart a File →