Telling a common-law partner you want to separate is its own kind of hard conversation — there's no marriage license to end, but there are still a home, finances, and possibly children to sort out, often with less legal structure to lean on.
Before you say anything, get honest with yourself about what you actually want: a full separation, a trial period apart, or just a serious conversation about the relationship's direction. Common-law partners sometimes assume that because there's no marriage certificate, there's nothing formal to 'end' — but if you've lived together for a meaningful length of time, or share a child, many provinces treat you as something like spouses for support and sometimes property purposes. Knowing roughly where you stand — lease or title in one name or both, joint accounts, a shared vehicle, whose name is on what — makes the conversation itself calmer, because you're not discovering the practical stakes in real time while also having an emotional one.
It also helps to separate the 'why' from the 'how' in your own head. You don't owe your partner a fully litigated case for why the relationship is ending, but you should be ready for the conversation to turn practical quickly — where will each of you live, what happens with a shared lease, is anyone paying anything to the other. Thinking through your own answers first, even loosely, stops the conversation from spiraling into unresolved logistics.
Choose a private, low-pressure setting and a time when neither of you is about to leave for work or has been drinking. Say it plainly and kindly: state that you've decided you want to separate, rather than opening it as a debate about whether the relationship is working. Ambiguity here is often kinder in the moment but harder later, because it invites a negotiation over a decision you've already made.
Expect a range of reactions — shock, anger, sadness, or relief — and try not to make every practical decision in that first conversation. It's reasonable to say 'I know we need to figure out the apartment and the car, but let's talk about that in the next few days' rather than trying to resolve everything on the spot. If you anticipate the conversation could turn volatile, see the safety section below before you plan the timing or location.
Ending a common-law relationship doesn't involve a divorce or a court granting you single status — legally, you're just no longer living as partners. But 'no divorce' does not mean 'no obligations.' Most provinces have their own threshold for when unmarried partners are treated similarly to spouses for support (and in some provinces, property) — usually based on how long you cohabited, whether you have a child together, or whether you presented as a couple publicly. These rules vary significantly by province, so this is worth confirming with a local family lawyer rather than assuming either 'we were never married, so nothing applies' or 'we lived together, so it's identical to divorce' — both assumptions cause real problems.
If you signed a cohabitation agreement when you moved in together, pull it out now — it likely sets out exactly how property and support are meant to be handled, and can shortcut a lot of the uncertainty. If you didn't sign anything, a separation agreement (even a simple one, ideally reviewed by a lawyer) is generally the practical equivalent of what a divorce agreement would do for married spouses: it puts what you actually agree to in writing.
In the days after the conversation, the concrete questions tend to arrive fast: who stays in the home, how joint bills and accounts get separated, what happens with a shared pet or shared debt. Where you can, put temporary arrangements in writing — even a short email confirming 'you'll stay through the end of the month, I'll cover the internet bill until then' — so there's a factual record if memories diverge later.
If children are involved, prioritize a basic, workable schedule early, even a rough one, rather than leaving it undefined. Courts and mediators generally look at what's actually been happening day to day, so an early, consistent routine tends to serve everyone better than an unresolved standoff.
If there's any history of controlling behaviour, threats, or violence, prioritize your safety over having a 'clean' conversation. That can mean telling your partner by phone or in writing instead of in person, having a friend nearby, choosing a public space, or arranging somewhere else to stay before you raise it at all. Local victim services or a domestic violence helpline can help you build a safety plan specific to your situation — this is worth doing before the conversation, not after.
Not necessarily to separate, but it's worth a consultation if you share property, debt, a lease, or children — many provinces give common-law partners support or property rights after a certain length of cohabitation, and a lawyer can tell you where you stand.
It's usually based on how long you've lived together, whether you have a child together, and how the couple presented themselves publicly — but the exact threshold differs by province, so confirm with a local family lawyer or your provincial court website.
Start there. A cohabitation agreement generally sets out how property, debt, and sometimes support are meant to be handled if you separate, and it can save both of you significant time and conflict compared to negotiating from scratch.
SortMyDivorce reads the letters and messages that follow a separation — from a lawyer, a mediator, or your ex directly — and turns them into one organized case, with every deadline, offer, and quote tracked in one place. Built for exactly this kind of transition, common-law or not. $39/year.
This guide is general information, not legal advice. Laws change and differ by jurisdiction — confirm specifics with a local family lawyer or your court's official website. If you use SortMyDivorce, your letters stay confidential — never shared, never sold.