GST/HST & Canadian Real Estate: When Does It Apply?

Most people assume GST/HST is a "new home" tax and stop thinking about it once they've bought a resale house. That's mostly true — but "mostly" is where the expensive surprises live: assignment sales, pre-construction closings, turning a condo into a rental, and buying as a non-resident all have their own GST/HST rules. This guide walks through where the tax actually applies, where it doesn't, and where a rebate might bring some of it back — in plain language, with links to the official Canada Revenue Agency (CRA) pages behind each rule.

This is general information, not personalized tax advice. Rules, rates, and dollar thresholds change — always confirm current numbers with the CRA or a qualified professional before relying on them for a purchase, sale, or rebate claim.

• 

• Resale homes: usually exempt

  If you're buying or selling an ordinary used house or condo — the kind of transaction most Canadians will ever do — GST/HST typically does not apply. The CRA's general rule is that a sale of real property is taxable unless it's specifically exempted, and the sale of a previously lived-in home by an individual who isn't a "builder" for GST/HST purposes is one of the main exemptions (Residential Real Property – Sales, CRA Memorandum 19.2.1).

• 
  

  The key word is "builder." For GST/HST purposes, you're generally not considered a builder just because you built, substantially renovated, or bought a home for your own or your family's use. The CRA gives a helpful example: someone who builds a house intending to live in it, gets transferred for work before moving in, and sells it — that sale is still exempt, because the house wasn't built or bought as a business activity (Sales by Individuals of Owner-Occupied Homes, GI-004).

• 
  

  A few situations to be aware of:

  • If part of the home was used for something other than your residence — a home office or a bed-and-breakfast, for example — the sale is still exempt as long as you used it primarily (more than 50%) as your residence.

  • If the home wasn't used primarily as a residence (say, 30% residence and 70% commercial space), the CRA treats it as two separate properties: the residential portion stays exempt, and GST/HST applies to the rest.

  • Someone whose main income comes from building and selling houses is generally a builder even for a home they lived in briefly — the resale exemption doesn't automatically follow just because you personally occupied the property.

• New and substantially renovated homes: where GST/HST comes in

  This is where most of the confusion — and most of the real dollars — show up. A sale by a builder of a newly constructed or substantially renovated residential complex is generally a taxable supply, meaning GST/HST applies on top of the purchase price (Residential Real Property – Sales, CRA Memorandum 19.2.1).

  "Substantially renovated" has a specific legal meaning — it's not just a new kitchen. Under the Excise Tax Act, it generally means all or substantially all (90% or more) of the interior of the existing building was removed or replaced, leaving out structural elements like the foundation, exterior walls, interior supporting walls, floors, roof, and staircases (Substantial Renovations and the GST/HST New Housing Rebate, B-092). A renovated kitchen sold a year later, for example, has no effect on the tax-exempt status of an otherwise ordinary resale.

  Rates depend on where the property is located. As a general guide for real estate transactions:

  • Ontario: 13% HST

  • British Columbia and Alberta: 5% GST only (BC and Alberta are not HST provinces for real property)

  • Nova Scotia: 14% HST; New Brunswick, Newfoundland and Labrador, and Prince Edward Island: 15% HST

  Confirm the current rate for your specific transaction using the CRA's GST/HST rates and place-of-supply rules, since these can change with federal or provincial budgets.

New Real Estate housing rebates : eligibility and the fine print matter

Paying GST/HST on a new or substantially renovated home doesn't mean you keep paying all of it — several rebates can recover part of what you paid, but each comes with its own eligibility conditions, and missing one condition can mean missing the whole rebate.

• GST/HST New Housing Rebate — available to individuals who buy new or substantially renovated housing from a builder (or build/substantially renovate their own home) for use as their or a relation's primary place of residence. The rebate recovers part of the GST or the federal part of the HST, and generally phases out once the home's fair market value hits $450,000 — full details, forms, and the calculation are in Guide RC4028, GST/HST New Housing Rebate and the rebate overview page.

• Ontario new housing rebate — a separate provincial rebate (up to $24,000) for the provincial part of the HST on Ontario homes, available even if the federal rebate is unavailable solely because the home's value exceeds $450,000.

• Ontario Enhanced New Housing Rebate (temporary) — as of the 2026 Ontario budget, homes purchased from a builder between April 1, 2026 and March 31, 2027 (and qualifying owner-built homes started in the same window) may get a temporary top-up that removes the 8% provincial portion of the HST on qualifying new homes. Because this is time-limited and closing-date sensitive, check current terms directly on the CRA's Ontario enhanced new housing rebate page before assuming it applies to a specific closing.

• First-Time Home Buyers' GST/HST rebate — a newer federal rebate for eligible individuals buying, building, or substantially renovating their first home as their primary residence, worth up to 100% of the GST/federal HST to a maximum of $50,000, phasing out between $1 million and $1.5 million in home value. See the CRA's First-time home buyers' GST/HST rebate page for current eligibility conditions.

Rental properties: the new residential rental property rebate

Buying a new or substantially renovated property specifically to rent it out changes the GST/HST picture again. Because the New Housing Rebate is meant for owner-occupiers, landlords generally can't claim it — instead, there's a separate GST/HST New Residential Rental Property (NRRP) Rebate for landlords who buy or self-build new rental housing, subject to its own fair market value threshold (generally under $450,000 per unit, or under $112,500 for a rental land site) (New residential rental property rebate; Guide RC4231; application Form GST524).

For larger, purpose-built rental buildings, the rules have gotten more generous: the Purpose-Built Rental Housing (PBRH) rebate increased the maximum NRRP rebate from 36% up to 100% of the GST or federal HST paid, for qualifying multi-unit rental construction that began after September 13, 2023, with no phase-out threshold — a meaningful shift for anyone weighing purpose-built rental development against condo-by-condo investment. If you're located in Ontario or Newfoundland and Labrador, a provincial NRRP rebate may also apply for part of the provincial portion of the HST.

Pre-construction purchases: an area where timing and structure both matter

Pre-construction is where GST/HST rules intersect most directly with the buying process itself — which is why it's worth understanding before you sign, not after you close. A few things to keep in mind if you're working through AHOM's pre-construction pathway:

• GST/HST is usually baked into the purchase price on the builder's price sheet, with the New Housing Rebate (or NRRP Rebate, if you're buying as an investor) typically assigned directly to the builder and credited against your closing costs — rather than something you apply for separately after the fact. Always confirm in writing how the rebate is being handled in your agreement of purchase and sale.

• Your intended use drives which rebate — if any — applies. A pre-construction condo bought to live in points toward the New Housing Rebate; a pre-construction unit bought to rent out points toward the NRRP Rebate instead. Declaring the wrong intention, or changing your mind before closing, can affect what you're eligible for.

• Closing costs beyond the purchase price — development charges, levies, utility hookups, and adjustments — are separate from GST/HST but are commonly confused with it on a Statement of Adjustments. Ask your lawyer to itemize which line items are tax and which are development-related charges.

• Deposit structures and occupancy timelines don't change the GST/HST treatment of the sale itself, but they do affect when self-supply or rebate-eligibility questions get triggered — which is one more reason to have your purchase and sale agreement reviewed before you're deep into deposit installments.

If you haven't yet mapped out which corridor, product type, and purchase structure fits your goals, AHOM's Relocation Fit Match tool is a useful starting point before you get into the tax mechanics of a specific unit.

Assignment sales: a separate, easy-to-misunderstand area

An assignment — selling your agreement of purchase and sale to another buyer before your original closing — is one of the most commonly misunderstood GST/HST situations in Canadian real estate, and the rules changed materially in recent years.

As of May 7, 2022, all assignment sales of newly constructed or substantially renovated residential housing are taxable for GST/HST purposes, regardless of whether the original assignor intended to live in the home (Assignment of a Purchase and Sale Agreement for a New House or Condominium Unit, GI-120; Notice 323, Proposed GST/HST Treatment of Assignment Sales). Before that change, whether GST/HST applied often turned on the original purchaser's intent — a fact-specific and frequently disputed question. That ambiguity is largely gone: today, GST/HST generally applies to the assignment fee (and, depending on how the deal is structured, potentially to deposits returned through the assignment) as a matter of course.

Two details that trip people up in practice:

• GST/HST on an assignment sale is typically calculated on the assignment price (the profit or fee over the original deposit), not the full value of the underlying home — but exactly what counts as taxable consideration depends on how the assignment agreement is drafted.

• Who is responsible for collecting and remitting the tax — the assignor or the assignee — and how that's reflected in the assignment agreement, is a contract question as much as a tax one. This is squarely lawyer-review territory before you sign anything.

Change of use: moving between personal residence and rental

GST/HST doesn't just care about the moment you buy — it also cares when your use of a property changes, particularly for newer or self-built homes. The CRA's deemed supply rules mean that converting a property between personal and income-producing use can trigger a "deemed sale" for GST/HST purposes, even though no actual sale took place (Residential Real Property – Deemed Supplies, CRA Memorandum 19.2.3).

In broad terms:

• A builder who constructs or substantially renovates a residential complex and then rents it out or moves into it personally is generally treated as having sold and immediately repurchased the property at fair market value — triggering GST/HST on that value, even without a real transaction.

• These self-supply and change-in-use rules exist specifically to prevent someone from avoiding tax on the value they added through construction, labour, and financing, simply by renting or occupying a self-built or newly built property instead of selling it.

• The trigger point (when possession is given under a lease, or when the change in use actually occurs) and the valuation (fair market value at that moment) are both fact-specific — this is not a calculation to estimate casually if you're weighing whether to move into a property you built, or convert a home you own into a rental.

Builders and self-supply rules: know when to stop and ask

The full self-supply and "builder" rules are genuinely one of the more technical corners of GST/HST law — CRA's own guidance runs to entire memoranda on the subject. The short version: if you're constructing, substantially renovating, or converting property with any commercial, rental, or resale intention (even occasionally, even personally), you may fall inside the CRA's definition of "builder" for a specific transaction, with real tax consequences attached. This isn't something to self-diagnose from a blog post — including this one. If any of the following applies to you, that's the signal to get a professional read before you act: you've built or substantially renovated a home more than once, you're renting out a property you built or substantially renovated, you're converting a non-residential property into housing, or you're not sure whether a past transaction already triggered a self-supply event you haven't accounted for.

Non-residents and investors: additional considerations, not the whole picture

If you're a non-resident buying, selling, or renting Canadian real estate, GST/HST is one layer of a larger tax picture — not the only one. Non-residents making taxable supplies of real property in Canada can have GST/HST registration obligations, and in some cases the purchaser (rather than the non-resident seller) becomes responsible for remitting the tax directly to the CRA (GST/HST Information for Non-Residents, RC4027; Register for a GST/HST account).

But GST/HST registration is only one piece of what non-resident owners and investors need to think about — income tax withholding on rental income, disposition reporting requirements, and provincial non-resident speculation or foreign buyer taxes (which are separate from GST/HST entirely) can all apply in parallel. The CRA's Non-Residents and Income Tax guide, T4058 is a starting point for the income tax side, but non-resident real estate ownership in Canada is genuinely a multi-advisor situation — this is not a "check one box and you're done" area for anyone investing from outside the country.

When to speak with an accountant or tax lawyer

Everything above is meant to help you recognize when a GST/HST question exists — not to replace the professional judgment needed to answer it. Get a professional opinion before you:

• Sign an assignment agreement, on either side of the transaction

• Assume a rebate applies to your specific pre-construction closing, especially with time-limited programs like Ontario's enhanced rebate

• Change the use of a property you built, substantially renovated, or self-supplied

• Buy or sell as a non-resident, or structure a purchase through a corporation or partnership

• Get CRA correspondence questioning a rebate you've already claimed

AHOM's Professional Advisory & Referral Network connects you with vetted accountants and real estate tax lawyers for exactly these situations — we coordinate your relocation and property journey, and route you to the right specialist the moment a question moves from general information into advice specific to your transaction.

Where this fits into your AHOM journey

This article is meant to sit underneath a few different parts of your research, depending on where you are in the process:

• Exploring the market generally? Start with our Canadian Real Estate Guide.

• Thinking through the tax side of relocating or investing? See Taxes & Planning.

• Actively house-hunting? Buying a Home covers the process end-to-end, with this page as the GST/HST detail underneath it.

• Working through a builder deal? Our Pre-Construction pathway is where the rebate, assignment, and closing-cost questions above show up in practice.

• Buying to rent or invest? A dedicated Rental/Investment Property guide is in the works — in the meantime, the rental rebate section above and our Professional Advisory & Referral Network can point you to a landlord-focused accountant now.

And whenever a question in any of those journeys turns into "what does this mean for my specific purchase," that's exactly what our Professional Advisory & Referral Network is there for.