You’ve been living with your partner for years and are wondering what you’re legally entitled to if things end. What is a common-law spouse entitled to in Ontario? The answer will probably shock you—way less than you think.
Let me explain the harsh reality of common-law rights in Ontario and what protections actually exist.
The Brutal Truth About Property Rights
Here’s what surprises most people: common-law partners get ZERO automatic property division rights in Ontario. Nothing. Nada. Zilch.
If your partner owns the house, car, investments, and business in their name only, those assets are legally theirs when you separate.
You don’t get half just because you lived together for 10 years. The Family Law Act’s property division rules apply only to married spouses—common-law partners are entirely excluded.
What You Don’t Get?
Common-law partners have NO automatic right to:
- Equal division of property acquired during the relationship
- Half the value of the partner’s assets
- Share of the partner’s business or investments
- Matrimonial home protections
- Equalization of net family property
Understanding the differences in property division shows how massive the difference is between married and common-law rights.
Unjust Enrichment Claims
Your only option is proving unjust enrichment—that your contributions enriched your partnership, you suffered corresponding deprivation, and there’s no legal reason for it. This requires expensive lawyers, years of litigation, and uncertain outcomes.
You must prove your specific contributions increased your partner’s wealth. Made mortgage payments? Improved the property?
Provided free childcare, allowing the partner to work? You’ll need documentation, receipts, and evidence of everything. Even then, success isn’t guaranteed.
Spousal Support Entitlement
Here’s the good news: common-law partners CAN claim spousal support after three years of cohabitation or immediately if you have a child together.
Support calculations follow the same Spousal Support Advisory Guidelines used for married couples.
Your relationship length, income difference, and roles during cohabitation all factor into amounts and duration. Courts treat common-law and married spouses similarly for support purposes.
How Much Support Can You Get?
Support depends on:
- Length of cohabitation (longer = more support)
- Income gap between partners
- Career sacrifices you made
- Your age and health affect employability
- Standard of living during the relationship
Understanding spousal support calculations helps you estimate potential amounts.
Time Requirements for Support
Three years of continuous cohabitation create a support entitlement. Or any length of time if you have a child together and live with some permanence.
Even six months of living together with your biological child creates immediate support eligibility.
Child Support and Custody Rights
Children’s rights are completely equal whether parents are married or common-law. Your relationship status doesn’t affect anything related to kids.
Child support is calculated under the Federal Child Support Guidelines based on the payor’s income. The children’s best interests determine custody and parenting time.
Section 7 Expenses
Both parents share extraordinary expenses in proportion to their income. Daycare costs, medical expenses, extracurricular activities, and post-secondary education are split according to each parent’s share of the combined income.
Understanding parenting arrangements helps all parents, regardless of marital status.
CPP Credit Splitting
Canada Pension Plan credits earned during cohabitation get split between common-law partners after separation. This happens automatically when relationships end, unless you specifically opted out in writing.
If you lived together for 5 years, the CPP credits you both earned during that time are divided equally.
This federal benefit provides some pension protection that provincial property laws don’t offer common-law partners.
How Credit Splitting Works?
Each partner gets half of the combined CPP credits earned during cohabitation. If your partner worked and earned high CPP contributions while you stayed home with the kids, earning nothing, you still get half their credits for those years.
Government Benefits Recognition
Different programs recognize common law at various thresholds, creating a confusing patchwork of rights and obligations.
Tax Status After 12 Months
Canada Revenue Agency considers you common-law after 12 months of cohabitation or immediately with a child. This affects:
- GST/HST credits
- Canada Child Benefit amounts
- Income-tested program eligibility
- Tax filing requirements
Employment Benefits
Many employer benefit plans cover common-law partners under extended health and dental plans.
Each employer sets its own definition—some require 6 months, others 12 months, and some match the 3-year provincial standard.
Check your specific benefits plan. Don’t assume coverage exists without confirming the plan’s common-law requirements and what documentation they need.
Inheritance and Estate Rights
Common-law partners have minimal automatic inheritance rights in Ontario. If your partner dies without a will, you might inherit something under intestacy laws, but far less than married spouses receive.
Married spouses are first in line for inheritance. Common-law partners get only what’s left after the preferential share goes to the spouse and children. The amounts are significantly lower than those for spousal inheritance.
Importance of Wills
Common-law partners MUST have wills explicitly naming each other as beneficiaries. Don’t rely on intestacy laws—they provide minimal protection.
Without a will, your partner’s family could inherit everything despite your years together. Wills and beneficiary designations on accounts, insurance, and RRSPs become crucial for common-law couples.
Challenging Wills and Estates
Common-law partners can challenge wills under the Succession Law Reform Act if excluded unfairly. But proving entitlement is more complex than for married spouses.
You’ll need evidence of economic interdependence and contributions to the relationship. Understanding financial protection strategies includes proper estate planning for common-law couples.
No Matrimonial Home Protection
This one surprises people constantly. Married spouses can’t sell or mortgage the family home without the other’s written consent, even if only one spouse owns it.
Common-law partners have absolutely zero home protection. If the house is in your partner’s name only, they can sell it tomorrow without asking you or even telling you.
No legal recourse exists unless you can prove unjust enrichment through contributions.
Living in Partner’s House
You could live somewhere for 10 years, raise children there, pay half the bills, and have zero legal rights to the property. Come home one day to find your belongings on the lawn and locks changed.
Cohabitation Agreements Are Essential
Common-law partners need cohabitation agreements to create protections that legislation doesn’t provide.
Without agreement, you’re financially vulnerable in ways married spouses aren’t.
Agreements clarify property ownership, specify what happens upon separation or death, address support obligations, and create certainty. Both parties need independent legal advice before signing.
What Agreements Should Cover?
Comprehensive cohabitation agreements address:
- How property acquired during the relationship is owned
- Division of assets if the relationship ends
- Responsibility for debts incurred together or separately
- Spousal support terms or waivers
- What happens if one partner dies
- How disputes will be resolved
Understanding how to create enforceable agreements helps protect common-law relationships.
Converting to Marriage
Marriage immediately changes your legal status dramatically. All matrimonial property protections begin on the marriage date and continue forward.
Your relationship doesn’t reset—courts consider the total time you’ve spent together, including pre-marriage cohabitation, when calculating support. But property division starts from when you actually get married, not when you began living together.
Should You Get Married?
Some couples deliberately stay common-law to avoid automatic property sharing. Others marry for the comprehensive legal protections marriage provides, without needing to enter into agreements.
Neither choice is wrong—it depends on your circumstances. Marriage provides certainty and extensive protection automatically.
What This Means Practically?
If you’re common-law and your partner earns way more, owns everything, and you’ve sacrificed your career for family, you’re highly vulnerable. You can claim support but have no automatic property rights.
Your years of unpaid domestic labor, career sacrifices, and contributions to your partner’s success might entitle you to unjust enrichment claims.
But proving these through expensive litigation with uncertain outcomes isn’t the protection you thought you had.
Protecting Yourself Now
If you’re currently common-law:
- Get a cohabitation agreement immediately
- Ensure joint ownership of significant assets
- Keep evidence of all financial contributions
- Have proper wills naming each other
- Update beneficiary designations on accounts
- Document your relationship for support claims
Understanding relationship protections helps you take appropriate steps.
Helpful Information:
Ontario Family Law:
Visit the Ontario Ministry of the Attorney General for official information about common-law rights and family law protections.
FAQs
Do common-law spouses have the same rights as married?
No. Common-law partners can claim spousal support but have NO automatic rights to property division.
Can I get half the house if we’re common-law?
Not automatically. If the house is in your partner’s name, it’s legally theirs. You can make unjust enrichment claims if you contributed, but that requires expensive legal battles.
How long before the common law has rights in Ontario?
Three years for spousal support, or immediately if you have a child. But property rights never develop automatically, regardless of how long you live together.
What if I helped pay the mortgage?
You might be able to prove unjust enrichment claims, but it requires evidence of contributions and can be expensive.
Can my common-law partner kick me out?
Suppose the home is only in their name, yes. Common-law partners have no automatic occupancy rights like married spouses do.
Do I get spousal support as a common-law spouse?
Yes, after three years of cohabitation or immediately after having children. Support calculations are similar to those of married couples despite property differences.
What happens if my common-law partner dies?
You might inherit under intestacy laws, but far less than married spouses. Always have wills explicitly naming each other as beneficiaries.
Should common-law couples get a cohabitation agreement?
Essential. Agreements create property protections that legislation doesn’t automatically provide to common-law partners.
Can common-law partners claim child support?
Yes, child support is identical whether parents are married or common-law. Federal guidelines apply based on income, regardless of relationship status.
Does CPP get split for common-law?
Yes, CPP credits earned during cohabitation split automatically when the relationship ends.
What if we lived together for 20 years?
Spousal support entitlement increases with the length of the relationship, but property rights do not develop automatically.
Can I avoid being considered common-law?
Not for tax and benefit purposes after 12 months. CRA considers you common-law, whether you want recognition or not, once the criteria are met.
