The principal residence exemption is the reason most Toronto homeowners sell their house or condo and owe the CRA nothing on the profit. It shelters the capital gain on a home that was your principal residence for every year you owned it, which covers most people’s only home in most ordinary sales. What trips sellers up isn’t the exemption itself. It’s a reporting requirement that’s existed since 2016 and still catches people who assume a tax-free sale means nothing has to be filed. This guide covers what actually qualifies, what you have to report and when, what changes if the home wasn’t always your principal residence, and what happens to the exemption when a homeowner dies and an heir eventually sells. For everything else selling a Toronto property involves, see our complete Toronto real estate guide.
What the exemption actually does
When you sell a property for more than you paid for it, the profit is normally a capital gain, and the CRA taxes half of that gain at your regular income tax rate. The principal residence exemption removes that tax entirely for a home that qualified as your principal residence for every year you owned it. Sell a house you’ve lived in the whole time you owned it, and the gain, however large, is exempt. There’s no cap on the dollar amount, unlike some other tax shelters. It’s one of the most valuable tax breaks available to an ordinary Canadian homeowner, and most people who sell their only home never owe a cent of capital gains tax on it.
The exemption applies per family unit, not per person. A couple, married or common-law, can only designate one property as their shared principal residence for a given year between them. That matters for a household that owns a second property, a cottage or an investment condo, since only one of the two can be sheltered for any year both are owned.
What counts as a principal residence
CRA’s own guidance tests whether the property was “ordinarily inhabited” by you, your spouse or common-law partner, your former spouse or partner, or your child, at some point during the year. This is a lower bar than a lot of sellers assume. The home doesn’t need to be the one you lived in the most that year, and a genuine but relatively brief period of occupancy can still qualify a property for the year in question, as long as it reflects real use of the home rather than a token stay arranged to claim the exemption.
Because the exemption is designated year by year on the actual sale, and because only one property per family unit can be designated for any given year, a household with a downtown condo and a lake property has to choose which one gets the exemption for years they owned both, generally the one with the larger gain, since the exemption shelters more value on that property. The designation happens when you file, using Form T2091, not at the time you decide where to live.
The reporting requirement most sellers don’t know about
Since January 1, 2016, every sale of a principal residence has to be reported on Schedule 3 of your tax return for the year of the sale, even though the resulting gain is fully exempt. That’s the single most important thing to know about this exemption and the fact that trips up the most sellers, because before 2016 a fully exempt sale required no reporting at all, and plenty of people still assume that’s still true. You’ll need the acquisition date, the proceeds of the sale, and a description of the property. It’s a short form. It’s also mandatory.
Skipping it has real consequences. CRA can deny the exemption outright, making the entire gain taxable, or assess a late-filing penalty, generally the lesser of $100 a month or $8,000. Unlike most tax matters, CRA isn’t bound by the usual three-year window to reassess an unreported principal residence sale, so this isn’t a problem that quietly ages out. If you sold your home in the last few years and aren’t sure the sale was reported, it’s worth checking with an accountant or CRA’s My Account before assuming it’s fine because you never heard anything back.
What happens if it wasn’t your principal residence the whole time
A rental unit converted into a principal residence, or a home turned into a rental partway through ownership, changes the calculation. When a property’s use changes this way, CRA generally treats that switch itself as a disposition at fair market value on the date of the change, which can trigger a capital gain right there even though nothing was actually sold. The exemption only shelters the years the property was actually a principal residence, so a home rented for five years and then lived in for five more would typically have the gain split, roughly, between an exempt half and a taxable half.
The Income Tax Act gives owners a way around triggering that deemed disposition immediately. Elections under sections 45(2) and 45(3) let you defer the change-in-use disposition, and in some cases extend principal-residence treatment for up to four additional years even while the property earns rental income, provided you don’t claim capital cost allowance against it during that period. This is exactly the kind of situation where the mechanics matter and the dollar consequences are specific to your own numbers, so it’s worth a conversation with an accountant before you convert a property’s use rather than after you’ve already filed.
What happens to the exemption when a homeowner dies
When someone dies owning a principal residence, CRA’s own guidance for a deceased person’s return treats them as having sold it at its fair market value immediately before death, a deemed disposition rather than an actual sale. If the home truly was the deceased’s principal residence for the years being claimed, the principal residence exemption still applies to that deemed disposition and can shelter some or all of the resulting gain from tax, the same way it would on a real sale. The estate’s legal representative, usually the executor, claims the exemption by filing Form T1255 along with the deceased’s terminal tax return.
For most families, this means a parent’s home passes to their estate without triggering a tax bill on the appreciation, provided it truly was their principal residence throughout. Where the exemption doesn’t fully cover the gain, for a property that was only sometimes the deceased’s principal residence, the same partial-exemption mechanics described above for a change in use apply to the deceased’s final return.
What an heir who later sells owes
Inheriting a property doesn’t create an immediate tax bill for the person who receives it. The property’s adjusted cost base steps up to its fair market value immediately before the original owner’s death, essentially resetting the cost for tax purposes at that value. An heir who sells shortly after inheriting, before the property has had time to appreciate further, often owes little or nothing, not because of the exemption but because there’s been little further gain to tax.
The exemption itself doesn’t carry forward from the person who died. An heir who doesn’t move into the property and make it their own principal residence, and instead holds it as a rental or sells it later after it’s appreciated, owes ordinary capital gains tax on the increase in value between the stepped-up cost base at death and the eventual sale price. If the heir does make it their own home and lives there, the years they genuinely occupy it as their principal residence can themselves qualify for the exemption going forward, starting fresh from the inherited cost base. Property passing directly to a surviving spouse or common-law partner is the one exception: it generally rolls over on a tax-deferred basis rather than triggering the deemed-disposition rules described above, with the tax consequence deferred until the surviving partner eventually sells or dies.
Frequently asked questions
Do I have to pay capital gains tax when I sell my house in Toronto?
Not if the property was your principal residence for every year you owned it. The principal residence exemption removes capital gains tax entirely on a qualifying sale, with no dollar cap on the amount sheltered, which is why most Toronto homeowners selling their only home owe nothing to the CRA on the appreciation. The exemption applies per family unit rather than per person, so a couple can only designate one property as their shared principal residence for any year they owned more than one. You still have to report the sale on your tax return even when the gain is fully exempt, which is the part sellers most often miss.
Do I need to report selling my house if there’s no tax owed?
Yes. Since January 1, 2016, every sale of a principal residence has to be reported on Schedule 3 of your tax return for that year, including the acquisition date, the sale proceeds, and a description of the property, regardless of whether the resulting gain is fully exempt. Skipping this isn’t a minor paperwork lapse: CRA can deny the exemption outright and tax the full gain, or assess a late-filing penalty, generally the lesser of $100 a month or $8,000, and CRA isn’t bound by the usual three-year reassessment window for an unreported sale. If you’re not sure a past sale was reported correctly, an accountant can check and file a late designation if needed.
What happens to the principal residence exemption when someone dies?
CRA treats the deceased as having sold the home at its fair market value immediately before death, called a deemed disposition, rather than waiting for an actual sale. If the property genuinely was the deceased’s principal residence for the years being claimed, the exemption still applies to that deemed disposition and can shelter the resulting gain, the same as it would on a real sale during their lifetime. The estate’s executor claims it by filing Form T1255 with the deceased’s terminal tax return. Where the home was only sometimes the deceased’s principal residence, the exemption covers only the qualifying years, and the rest of the gain is taxable on the final return.
If I inherit a house and later sell it, do I owe capital gains tax?
Possibly, but not on the appreciation that happened before you inherited it. The property’s cost base for tax purposes steps up to its fair market value immediately before the original owner’s death, so you’re only taxed on the gain between that value and your eventual sale price, not on the increase during the deceased’s ownership. If you move into the property and make it your own principal residence, the years you genuinely live there can qualify for the exemption going forward. If you hold it as a rental or an investment instead, ordinary capital gains tax applies to whatever it gains in value while you own it. An exception applies if you inherited the property directly from a spouse or common-law partner, which generally rolls over on a tax-deferred basis rather than triggering these rules at that point.
The principal residence exemption explains the general rule, but what you actually owe on a specific sale depends on your own ownership history and how the property was used, which is a conversation for a qualified accountant, not something this guide can determine for you. If you’re weighing whether now is the right time to sell, get in touch with our team to talk through what your property is worth right now, or read the rest of our guides for what else selling in Toronto involves, including what it actually costs to sell and what determines a condo’s resale value.