A cohabitation agreement is a written plan for couples who live together without being married. It says who owns what, who pays for what, and what happens if you split up. It is not romantic, but it is one of the smartest things a couple can do when they move in together. It is also a lesson I plan to teach my own kids.
What is a cohabitation agreement?
It is a legal contract between two people who live together but are not married. It can cover how you share bills, who owns the home and what happens to your money and property if the relationship ends. Think of it as a map you agree on while things are good.
In Ontario, this matters more than many people think. The property rules that split assets between married spouses do not automatically apply to common-law couples. Without an agreement, a breakup can turn into an argument over who paid for what.
A family lawyer I spoke with put it simply: these agreements give couples a plan for money and day-to-day responsibilities, and they protect each person’s rights.
What should it include?
1. Assets and debts
- Who owns what today
- How things you buy together will be split
- Who is responsible for which debts
2. Sharing the bills
Spell out who pays what for rent or the mortgage, utilities, groceries and other shared costs. This heads off a lot of arguments.
3. The home
If you own or plan to buy a home together, decide whether you will hold title as joint tenants or tenants in common, and what happens to the home if you separate.
4. Support
Some couples include terms for support, especially if one partner steps back from work for the family.
5. Inheritance
An agreement cannot replace a will, but it can make your wishes clear. Update your wills so they match.
6. Children
If you have children, you can set out your intentions for parenting time and child support. A court will always look at what is best for the children, so get legal advice on this part.
7. Settling disagreements
Agree in advance on how you will solve disputes, such as mediation or arbitration, so you are not starting from scratch in a hard moment.
Why I want my kids to learn this
Money skills are one of the most important things I can teach my children. Knowing when and why to put an agreement in writing is part of that. Families look different today, and a simple plan protects both people.
Two real-life examples
A couple who split without one
Sarah and James lived together for five years and bought a home. They shared costs, but never wrote anything down. When they broke up, Sarah felt she should get more because she put in more of the down payment. James wanted a 50/50 split. They ended up in a long, costly court fight that left them both worse off.
A couple who planned ahead
Emily and Mark signed a cohabitation agreement when they moved in. It covered their money, property and other key issues. When they later married, they updated it into a marriage contract with a few changes. Because the hard talks were already done, the move to marriage was easy.
The bottom line
A cohabitation agreement is not planning for failure. It is planning for whatever comes next, and it can save time, money and stress. Speak with a family lawyer to draft one that fits your situation.
Buying a home together? Book a call or phone 289-723-2126 and we will talk about how to hold title and set up the mortgage.
Common questions
Do common-law couples in Ontario split property like married couples?
No. The property division rules for married spouses do not automatically apply to common-law couples in Ontario. A cohabitation agreement sets out what happens instead.
Can a cohabitation agreement become a marriage contract?
Yes. In Ontario, a cohabitation agreement generally becomes a marriage contract if the couple later marries, unless it says otherwise. Have a lawyer review it when you marry.
Should we have a cohabitation agreement before buying a home together?
It is a good idea. It can say how you hold title, who paid the down payment and what happens to the home if you separate.