First-Time Home Buyer GST/HST Rebate in Ontario: 2026 Rules, Amounts and Traps

As of October 1, 2026, applications are open for the federal first-time home buyers’ GST/HST rebate, and CRA also states that Ontario’s first-time home buyers’ rebate is available. For an eligible new or substantially renovated home, the federal rebate can be worth up to $50,000, while the Ontario first-time buyer rebate can provide up to $80,000 of the provincial HST component under the current rules. Those headline amounts are significant—but they are not a blanket cheque for every first-time buyer or every Ontario home purchase.

The real underwriting-style question is a sequence: Is the buyer first-time under this rebate’s definition? Is the property an eligible new/substantially renovated home or qualifying owner-built/co-op transaction? Do the agreement, construction, ownership and occupancy dates fit? How much tax was actually paid? Is the builder crediting any rebate on closing? And how does the rebate interact with the existing new-housing rebate? A strong purchase budget answers all of those before it treats the rebate as usable cash.

What the federal first-time GST/HST rebate actually does

For eligible first-time buyers, the federal FTHB GST/HST rebate can recover up to 100% of the GST—or the federal portion of HST—paid on a qualifying new home, up to a maximum of $50,000 when the home value is $1 million or less. Between $1 million and $1.5 million, the maximum rebate is gradually reduced. At $1.5 million or more, the federal FTHB rebate is zero under the current value rule.

Worked federal example: why $1.25 million does not mean a $50,000 rebate

CRA’s published formula illustrates the phase-out. A qualifying home valued at $1.25 million sits halfway between $1 million and $1.5 million, so the $50,000 maximum is reduced by 50%. If at least that much qualifying federal tax was paid, the maximum federal FTHB rebate would therefore be $25,000. This is why buyers should model the value threshold instead of repeating the headline maximum.

The phase-out is a tax calculation, not a mortgage approval rule. A lender still underwrites the purchase price, down payment, mortgage amount, income, debts, credit, property and insurer criteria. The rebate can improve the transaction’s cash economics, but it does not replace qualification.

Ontario adds a separate first-time buyer HST rebate

CRA’s current page states that the Ontario first-time home buyers’ rebate can provide up to $80,000 of the provincial part of HST to eligible individuals in Ontario who are buying, building or substantially renovating their first home. The Ontario FTHB rebate follows the eligibility conditions for the federal FTHB GST/HST rebate and acts as a top-up to the existing Ontario new housing rebate where applicable.

That creates a potentially large Ontario tax benefit, but “up to $50,000 federal plus up to $80,000 provincial” should not be read as an automatic $130,000 payment. The amount depends on the actual qualifying tax, property value, transaction type and interaction with existing rebate amounts. The correct closing analysis reconciles the builder’s price and HST treatment, any rebate credited in the agreement, the statement of adjustments and any amount that must be claimed after closing.

Which homes can qualify? New or substantially renovated is the key

The FTHB GST/HST rebate is not a general first-time-buyer grant for resale homes. It is tied to qualifying GST/HST-bearing housing transactions. CRA’s eligibility pathways include purchasing a newly built or substantially renovated home from a builder, constructing or substantially renovating an owner-built home, and certain purchases of a qualifying co-operative housing share. The home must be intended for use as the buyer’s primary place of residence under the applicable rules.

The agreement date can decide eligibility before the mortgage application even starts

For a qualifying home bought from a builder, CRA currently requires the agreement of purchase and sale to have been entered into on or after March 20, 2025 and before 2031, alongside construction/completion and transfer deadlines. The rules also contain anti-avoidance limits for agreements that were entered into before March 20, 2025 and later varied, assigned, cancelled or replaced primarily to access the rebate.

This is a crucial purchase-planning point: a buyer can be a genuine first-time purchaser in 2026 and still fail the rebate because the contract history does not fit. For preconstruction assignments or amended agreements, obtain legal/tax confirmation before assuming the rebate is part of the closing funds.

The first-time-buyer test includes spouse and foreign-home history

For the federal FTHB GST/HST rebate, CRA generally requires the buyer to be at least 18 and a Canadian citizen or permanent resident and not to have lived in a home owned or jointly owned by the buyer or the buyer’s spouse/common-law partner as the primary residence during the relevant calendar-year lookback. CRA expressly says the home can be in or outside Canada. Neither the buyer nor spouse/common-law partner can have previously received the FTHB GST/HST rebate.

This is another reason not to borrow the definition from Ontario land-transfer tax, FHSA or mortgage insurance. Each program has different language. A buyer who qualifies as “first-time” for one may not qualify for this rebate. HopeWell’s companion article on first-time-buyer definitions maps those differences program by program.

A four-calendar-year test can produce different answers only months apart

CRA’s examples show how calendar years matter. A person who sold and stopped living in an owned principal residence in June 2022 would still have 2022 inside the lookback for an ownership transfer in 2026 and therefore may fail the first-time test. If ownership of the new qualifying home transfers in 2027, 2022 may fall outside the current-year-plus-four-prior-calendar-year window, potentially changing the result if all other conditions are met. Use exact dates and years; do not approximate this as “48 months.”

Builder credit versus apply-after-closing: the same rebate can create very different cash-flow

In eligible builder purchases, the builder may pay or credit the rebate to the buyer and file the application. If the builder does not credit it, the buyer can use the applicable CRA application process. For builder purchases, current CRA instructions use Form GST190 for the federal component and Form RC7190-ON for the Ontario rebate schedule where applicable. The important mortgage point is not the form number—it is whether the benefit reduces the amount due on closing or arrives later.

Worked cash-to-close example: tax benefit does not equal down payment

Assume an eligible first-time buyer purchases a qualifying Ontario new home for $950,000 and the builder’s pricing/statement makes the applicable HST and rebate treatment clear. Even if the buyer qualifies for substantial federal and provincial rebate amounts, the mortgage lender still needs an acceptable down payment and proof of funds. A tax rebate credited on closing can reduce the lawyer’s net cash requirement; a rebate claimed after closing cannot perform that same liquidity function on closing day.

That distinction becomes especially important when the buyer is near the minimum down payment. The Down Payment Planner should model the mortgage/equity requirement. The Closing Cost Calculator should model land transfer tax and transaction costs. Then the actual builder credit or post-closing rebate should be placed on the correct side of the cash-flow timeline. Do not subtract a future receivable from today’s required certified funds unless the legal closing mechanics actually allow it.

How this rebate differs from Ontario land-transfer-tax relief

The GST/HST rebate and the Ontario first-time-homebuyer land-transfer-tax refund solve different costs. The GST/HST rebate relates to tax on eligible new or substantially renovated housing. Ontario LTT applies to the transfer of land and has a separate first-time-buyer refund with its own maximum and ownership rules. A qualifying buyer can potentially interact with both regimes, but one does not establish eligibility for the other.

Where buyers get into trouble

Documents worth collecting early

The mortgage decision: treat the rebate as a transaction input, not an affordability shortcut

A first-time buyer should first establish a sustainable purchase price from income, debts, stress-tested qualification and real household cash flow. The rebate can then improve the economics of an eligible new-home transaction. Reversing that order—choosing a higher price because a large rebate is expected—can produce a mortgage that qualifies on paper but leaves the household with too little liquidity after closing.

For a live Ontario new-build purchase, the useful next step is to review the agreement date, builder HST language, buyer/spouse ownership history, intended occupancy, down-payment proof and statement of adjustments together. That shows whether the tax benefit is available, when it becomes cash, and whether the mortgage file remains strong without relying on optimistic assumptions.

Bottom line

The 2026 first-time home buyers’ GST/HST rebates can materially reduce the tax cost of an eligible Ontario new or substantially renovated home. But the headline maximums are not universal entitlements. Verify the buyer definition, property type, contract date, construction/transfer timing, spouse and foreign-home history, tax actually paid and builder-credit mechanics before the rebate enters the closing budget.