Ontario’s new HST rebate can put up to $130,000 back in a buyer’s pocket, but only if they’re buying new construction. That’s the headline everyone’s read. Here’s the part almost nobody’s talking about. If your renovation is big enough, the CRA can legally treat your existing home as “new” too, and the same rebate framework applies.
Most homeowners have never heard of this. Most contractors don’t bring it up either, because it changes how a project has to be scoped from day one.
The Threshold, In Plain Terms

A rough gut check on whether your project might be in range:
- Interior walls coming down to studs, not just cosmetic
- Kitchen and bathrooms fully stripped and rebuilt
- Flooring, plumbing, and electrical replaced throughout
- Only the foundation, exterior walls, or roof structure staying original
If that sounds like your addition, your main floor reconfiguration, or a whole-home renovation tied to a garden suite build, the door might be open. The rules on documentation and timing are specific enough that guessing wrong is expensive, but the opportunity is real and mostly unclaimed right now.
“We’ve had more homeowners asking about this in the last few months than in the previous two years combined,” says Mr. Amota, founder of Mirage Renovations. “The scope decisions you make in the first planning meeting, how much of the interior comes out, how the project is sequenced, can be the difference between qualifying and not. That’s not something to figure out after the drywall is down.”
Mirage has already walked clients through this, including a full main floor gut paired with a rear addition where the classification question changed how the job was scoped and phased from the start.

Why Toronto Homeowners Specifically Should Care
New home sales in Toronto are down more than 60 percent from 2022 levels, resale activity just hit its lowest point in two decades, and the average GTA selling price sits at $1,069,700, down 4.6 percent year over year. For a homeowner with equity, a location they like, and a mortgage rate they don’t want to lose, staying and renovating is already the more rational move. This rebate is the part of that math nobody’s factored in yet.
If you’re planning anything close to a gut renovation, this is worth a five minute conversation before the scope gets locked in, not after. A home remodelling contractor, Mirage Renovations included, can tell you early whether your project clears the threshold, and structure the plan so it does.
Send this to whoever you know is mid-reno. There’s a real chance they’re sitting on money they don’t know exists.
