- The sale of a used residential property by an individual is generally exempt from HST.
- The exemption for used residential property has a limit: it doesn’t extend to a substantial renovation.
- Beyond substantial renovation, a flip can also be treated as taxable where: - The seller is considered to be in the business of buying, renovating, and selling homes (as opposed to a…
Most resale home sales in Ontario are exempt from HST. That’s the default a lot of people carry into a flip — buy a tired house, renovate it, sell it, and assume the transaction is taxed the same way an ordinary resale would be. Depending on how extensive the renovation was, that assumption can be wrong, and finding out at closing (or after, in a CRA reassessment) is a far worse time to learn it than before you buy the fixer-upper.
This article covers the HST side of flipping specifically — whether the sale itself is a taxable supply. It doesn’t cover income tax treatment of flip profits, which is a separate and equally important question for your accountant.
The Default Rule: Used Residential Property Is Exempt
The sale of a used residential property by an individual is generally exempt from HST. This is why an ordinary resale home changing hands between private sellers and buyers usually involves no HST at all on the purchase price — it’s baked into the exemption for used housing, not something anyone has to claim or apply for.
A flip that involves genuinely cosmetic work — paint, flooring, fixtures, landscaping — generally doesn’t change that. The home is still, for HST purposes, the same used residential property it was before you bought it.
When a Flip Crosses Into "Taxable"
The exemption for used residential property has a limit: it doesn’t extend to a substantial renovation. Where a renovation is extensive enough that CRA treats the result as, in effect, a new or substantially rebuilt home — rather than the same used house with upgrades — the resulting sale can be treated as a taxable supply, similar to a builder selling new construction.
Exactly how much of a structure needs to be removed and replaced before a renovation counts as "substantial" for these purposes is a technical, fact-specific test. This article won’t state a percentage or bright-line threshold — if your project involves gutting a house down to the studs, removing load-bearing structure, or effectively rebuilding most of the interior, get a professional assessment of where your project falls before you list it for sale.
Other Situations That Can Trigger Taxable Treatment
Beyond substantial renovation, a flip can also be treated as taxable where:
- The seller is considered to be in the business of buying, renovating, and selling homes (as opposed to a one-off personal project), which can itself change how a transaction is characterized.
- The property was newly constructed by the flipper (a teardown-and-rebuild), rather than an existing structure that was renovated.
- The flip involves land or a property type that doesn’t qualify for the used-residential-property exemption in the first place (vacant land intended for a new build, for example).
Taxable Flip vs. Exempt Resale: A Comparison
| Cosmetic flip (exempt) | Substantial renovation / rebuild (potentially taxable) | |
|---|---|---|
| Scope of work | Paint, flooring, fixtures, kitchen/bath refresh | Structural rebuild, most interior removed and replaced, or full teardown/rebuild |
| HST on sale | Generally none — used residential property exemption applies | Potentially treated like a new home sale |
| Buyer’s rebate eligibility | Not applicable | May be relevant, depending on the buyer’s intended use |
| Who should weigh in before listing | Real estate lawyer, for the transaction itself | Real estate lawyer and accountant, ideally before major structural work begins |
Practical Checklist Before You List a Flipped House
- [ ] Document the scope of renovation work in detail (permits, contractor invoices, before/after scope).
- [ ] Get an accountant’s read on whether the project could be characterized as a substantial renovation before you finalize the listing price.
- [ ] Decide, with professional advice, whether the Agreement of Purchase and Sale needs an HST clause (see our companion article on drafting that language).
- [ ] Keep records regardless of the answer — CRA can revisit the characterization after closing, and documentation is your best protection.
Frequently asked questions
If I only flip one house, does that change the HST analysis?
Not necessarily. Whether a renovation is "substantial" turns mainly on the scope of the work itself, not on how many times you’ve done it — though a pattern of repeated flips can affect other tax questions, including whether CRA views the activity as a business for income tax purposes.
Does land transfer tax apply differently to a flipped house?
Land transfer tax and HST are separate taxes with separate rules. A flip can trigger LTT considerations in the ordinary way regardless of its HST treatment — the two questions don’t automatically move together.
If my flip is found taxable after the fact, who owes the HST?
This depends on the transaction and how it was structured, including any HST clause in the Agreement of Purchase and Sale. It’s exactly the kind of dispute a clear, well-drafted agreement is meant to prevent — see our related article on making sure your purchase agreement addresses HST explicitly.
Should I talk to a lawyer or an accountant about this?
Both, ideally, and early. Your lawyer handles the transaction and the agreement’s wording; your accountant assesses the tax characterization of the renovation itself and its income-tax implications. The two questions are connected but distinct.
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