Two buyers walk into the same situation. Both sold a condo in June 2022. Both have rented ever since. Both are buying their first new home in years and both assume – reasonably – that they’re first-time buyers again.
One of them is. One isn’t. The difference is four months.
This is the condition we see misread more than any other, in both directions. People rule themselves out when they qualify. People assume they qualify when they don’t. And because the amount at stake can reach $50,000 federally, plus Ontario’s provincial rebate on top, getting it wrong is expensive in a way most conditions aren’t.
The rule, stated plainly
To claim the first-time home buyers’ GST/HST rebate, neither you nor your spouse or common-law partner can have lived in a home that either of you owned, as a primary place of residence, at any point in:
- the calendar year in which you take ownership, or
- the four calendar years before it
There are other conditions – you must be at least 18, a Canadian citizen or permanent resident, and neither of you can have claimed this rebate before. But the ownership lookback is the one that catches people.
Two things about it do the damage.
It runs on calendar years, not rolling dates
Most people hear “four years” and count backwards from today. That isn’t how it works.
The test looks at whole calendar years – January to December – not a rolling forty-eight months. Which means the answer can change depending on which side of December 31 your closing falls.
Here’s what that does in practice.
Take the buyer who closes in August 2026.
The calendar year of closing is 2026. The four calendar years before it are 2025, 2024, 2023 and 2022.
They lived in a condo they owned until June 2022. That’s inside 2022. They do not qualify.
Now take the same buyer, closing in February 2027.
The calendar year is 2027. The four before it are 2026, 2025, 2024 and 2023.
2022 now falls outside the window entirely. They qualify.
Identical ownership history. Identical property. Four months of difference in a closing date, and a five-figure swing in what they’re entitled to.
It counts your spouse’s ownership as your own
The second trap is subtler, and it catches people who have never owned property in their lives.
The test doesn’t ask what you owned. It asks whether either of you lived in a home that either of you owned.
So a buyer who has rented their entire adult life can fail the test because their spouse owned and lived in a condo four years ago — before the two of them had even met.
When the relationship began doesn’t enter into it. The test looks at calendar years and at ownership, not at whether you were together at the time.
This is the version we see most often among people who are certain they qualify. They’ve never owned anything, so they never think to ask the question.
When it cuts the other way
It’s worth being clear that this isn’t only a disqualifying rule. It also means people write themselves off who shouldn’t.
Someone who owned a house seven years ago and assumes “first-time buyer” means literally never having owned. Someone who owned a rental property but never lived in it — ownership alone isn’t the test, living in a home you owned is. Someone whose spouse owned something a decade ago.
All of those may qualify. We’ve had clients who’d decided they weren’t eligible, never looked into it, and were owed a substantial sum.
What to do about it
If your closing date isn’t fixed yet, check the test before it is.
That’s the whole point of this article. Once the closing date is set, the answer is set with it. Before it’s set, a conversation about timing is a conversation worth having – and it’s the kind of thing a lawyer or an agent isn’t going to raise, because it isn’t their area.
If you’re near the boundary, get it confirmed rather than assumed.
The dates that matter are: when you last lived in a home you owned, when your spouse last lived in a home they owned, and when ownership of your new home is scheduled to transfer. Three dates, and they settle it.
If you’ve already closed, it’s still worth checking.
Both the federal and Ontario first-time buyer programs reach back to March 20, 2025. If you closed after that date, you may have a claim regardless of whether anyone mentioned it at the time. There’s a separate route for buyers who closed before the legislation received Royal Assent in March 2026 – their builder couldn’t credit a rebate that didn’t legally exist yet.
The short version
The first-time buyer test is not a vibe about whether you feel like a first-time buyer. It’s a specific measurement against specific calendar years, and it includes a person you may not have thought to ask about.
Four months in a closing date can be worth $50,000. It’s worth ten minutes to find out which side of it you’re on.