Every Ontario co-buyer faces one decision their lawyer will ask about before the deed gets registered: hold title as joint tenants or as tenants in common. Joint tenancy gives each owner an equal share and the right of survivorship, meaning a deceased owner’s share passes automatically to the surviving owner, outside their will. Tenancy in common lets owners hold separate, even unequal shares, and each share passes through that owner’s own estate when they die. The two structures produce very different outcomes for a couple buying together, siblings splitting a down payment unevenly, or a parent going in on a purchase with an adult child. This guide walks through what each one actually means, when the difference matters, and how to change your mind later if you need to. For everything else a Toronto purchase involves, see our complete Toronto real estate guide.
What joint tenancy actually means
Joint tenancy is co-ownership where every owner holds an identical, undivided share of the whole property, and where the right of survivorship applies. If two people buy a house as joint tenants and one of them dies, the surviving owner becomes the sole owner of the entire property immediately, by operation of law. The deceased owner’s will has no say in it. Their share doesn’t pass through probate, doesn’t get distributed to their children or anyone else named in their estate, and doesn’t get taxed as part of their estate the way a share held some other way would. It simply belongs to the survivor from the moment of death.
For joint tenancy to exist at all under Ontario property law, four conditions, known as the four unities, have to be met: the owners acquire their interest at the same time, through the same document, in identical shares, with an equal right to use the whole property. This is why joint tenancy is common between spouses and long-term partners buying their first home together. It matches how most couples actually think about ownership: not mine and yours in fixed percentages, but ours, with the survivor automatically keeping the whole thing.
What tenancy in common actually means
Tenancy in common is co-ownership without survivorship. Each owner holds a distinct, identifiable share of the property, and those shares don’t have to be equal. Two siblings might hold 50/50. A parent who covered most of a down payment and an adult child who covered the rest might hold 70/30, reflecting what each actually put in. Whatever the split, it gets written into the transfer registered on title, so there’s no ambiguity about who owns what.
The critical difference from joint tenancy shows up on death. When a tenant in common dies, their share doesn’t pass automatically to the other owner. It passes through their own estate, distributed according to their will, or, if they didn’t leave one, under Ontario’s intestacy rules in the Succession Law Reform Act. That means a tenant in common can leave their share of a property to their children, a sibling, a charity, or anyone else they choose, rather than having it default to a co-owner they may not have intended to inherit the whole thing.
The real difference this makes for a Toronto co-buyer
The choice between the two comes down to two questions: did everyone contribute equally, and who do you want to inherit your share? A couple buying their home together, contributing roughly equally and planning to leave everything to each other anyway, is the textbook case for joint tenancy. It’s simpler, it avoids probate on the first death, and it matches how the couple already thinks about the property.
A parent helping an adult child buy in a market where affordability is the whole reason they’re co-buying at all is a different situation. If the parent put in $200,000 of a $500,000 down payment and the child put in $50,000, joint tenancy would still treat their shares as identical and would still send the parent’s share automatically to the child on the parent’s death, bypassing any other children or beneficiaries the parent might want to include. Tenants in common lets the ownership split reflect what each person actually paid, and lets each person’s share go where they choose when they die.
Two friends buying together with no intention of the other inheriting everything, a sibling group splitting an investment property, or anyone who wants their share to go to their own children rather than a co-owner: these are the situations tenants in common was built for. Neither structure is better in the abstract. The right one depends on how the contributions actually broke down and what each owner wants to happen to their share when they’re gone.
Can you change from one to the other later
Yes. A joint tenant can sever the joint tenancy and convert it to a tenancy in common, and they can do it without the other owner’s agreement. The most reliable way is to register a new transfer on title through a lawyer, which is a straightforward legal process but not a free or instant one. It involves legal fees and land registry steps, the same kind of work involved in any transfer of an interest in land. Owners can also agree together, in writing, to change how they hold title, which is simpler when everyone’s on the same page.
This flexibility matters before you buy, because it means the initial decision isn’t permanent if circumstances change. A couple who bought as joint tenants and later wants to make sure a share goes to children from an earlier relationship can sever the joint tenancy. What it isn’t is something to treat casually or put off. Severing a joint tenancy is a real legal step with real cost, done through your lawyer, not something you can undo with a conversation.
What happens if co-owners disagree and one wants out
Most co-ownership arrangements never reach this point. Owners sell together, one buys the other out, or the relationship that brought them together in the first place keeps working. But when co-owners genuinely can’t agree, whether to sell, how to split proceeds, or what happens next, Ontario law gives any co-owner, joint tenant or tenant in common, the right to apply to court for what’s called partition and sale under the Partition Act.
Courts in Ontario treat this as close to an automatic right. A co-owner who applies is generally entitled to a partition or sale unless the other owner can show the application is malicious, vexatious, or oppressive, which is a high bar to clear. In practice, that means an owner who wants out of a shared property, and can’t reach an agreement with the others, has a real legal path to force a sale and get their share of the proceeds. It’s genuinely a last resort. It means court, a lawyer, and time, not a quick or routine process, and it’s exactly the kind of outcome that’s worth avoiding by thinking through the ownership decision honestly before you buy rather than after a falling out.
Frequently asked questions
What’s the main difference between joint tenancy and tenants in common in Ontario?
The main difference is what happens to a deceased owner’s share. Under joint tenancy, the right of survivorship means a deceased owner’s share passes automatically to the surviving joint owner or owners, outside their will and without going through probate. Under tenancy in common, each owner holds a distinct, possibly unequal share that passes through their own estate on death, distributed according to their will or Ontario’s intestacy rules if they didn’t leave one. Joint tenancy also requires equal shares among all owners, while tenants in common can split ownership however the owners actually contributed, whether that’s 50/50 or something else entirely.
Can two people own unequal shares of a property in Ontario?
Only under tenancy in common. Joint tenancy requires the four unities, one of which is unity of interest, meaning every joint tenant holds an identical share regardless of how much each person actually contributed. If a parent covers most of a down payment and an adult child covers the rest, joint tenancy still treats them as equal 50/50 owners and still sends the parent’s whole interest to the child automatically on the parent’s death. Tenants in common lets the ownership percentages reflect the real contributions, so a 70/30 or any other split can be registered on title and each owner’s share passes through their own estate rather than automatically to the other.
Do I need a lawyer to decide how to hold title?
You’ll be working with a real estate lawyer regardless, since a lawyer registers the deed and the transfer has to state which structure you’ve chosen. What a real estate lawyer generally won’t do is make the decision for you or give you estate-planning advice about who should inherit what. That’s a conversation worth having honestly with your co-buyer or co-buyers before closing, ideally with input from a lawyer who handles estate planning specifically if the stakes are significant, since the choice affects who inherits the property and whether it passes through probate.
What happens if my co-owner and I can’t agree and one of us wants to sell?
Either owner, whether you hold title as joint tenants or tenants in common, can apply to court under Ontario’s Partition Act to force a partition or sale of the property. Courts treat this as close to an automatic right and will generally grant it unless the other owner can prove the application is malicious, vexatious, or oppressive, which is a difficult standard to meet. This isn’t a quick or cheap process. It means a court application, legal fees, and time, and it’s a genuine last resort rather than a routine option, which is exactly why getting the ownership structure right at the start, and having an honest conversation about what happens if the arrangement stops working, matters more than it might seem to when you’re focused on closing the purchase.
How you hold title is a decision your real estate lawyer will walk you through at closing, based on what you and your co-buyer actually contributed and what each of you wants to happen to your share down the road. If you’re getting ready to buy with someone else, browse current Toronto listings to see what’s on the market, and read the rest of our guides for what else a purchase involves, including what you’re actually signing when you agree to a buyer representation agreement and what to budget for in closing costs.