If you are shopping for a newly built home or condo in the Greater Toronto Area, there has never been a better time to understand the first-time home buyer GST rebate. Introduced by the federal government in 2025, this measure can put as much as $50,000 back in your pocket on a new build — money that goes straight toward your down payment, closing costs, or simply making the numbers work. With GTA affordability still stretched and new-construction inventory sitting on the market, this rebate is one of the most meaningful breaks first-time buyers have seen in years. Here is how it works, who qualifies, and what it means specifically for buyers in Toronto, Mississauga, and Brampton.

What Is the First-Time Home Buyer GST Rebate?

The rebate eliminates the 5% GST (or the federal portion of the HST) on a qualifying new home valued up to $1 million for eligible first-time buyers. For homes priced between $1 million and $1.5 million, the rebate phases out on a sliding scale rather than disappearing all at once. At the maximum, a buyer can recover up to $50,000 of tax paid.

Here is the part most people miss: the relief does not cut off abruptly at $1 million. A new home priced at $1.25 million — the midpoint of the phase-out range — still qualifies for 50% of the maximum, or roughly $25,000. The closer you are to $1 million, the larger your rebate; the closer to $1.5 million, the smaller it gets, reaching zero at $1.5 million.

Who qualifies as a first-time buyer?

To claim the rebate, at least one purchaser must be a genuine first-time home buyer who will use the property as their primary residence and be the first person to live in it. A few rules are worth committing to memory:

• You can only claim this rebate once in your lifetime.
• You cannot claim it if your spouse or common-law partner has already claimed it.
• The home must be your principal residence — not a rental or an investment flip.

The Timeline That Determines Eligibility

This is where I see buyers get tripped up, so read carefully. The agreement of purchase and sale with the builder must be signed on or after May 27, 2025 and before 2031. Construction has to begin before 2031, and the home must be substantially completed before 2036. If you signed your pre-construction contract before May 27, 2025, you are unfortunately outside the window — even if your closing is years away.

For GTA buyers eyeing pre-construction condos or new freehold builds, those dates matter enormously. A condo you put a deposit on in 2024 will not qualify, but a new agreement signed today almost certainly falls inside the eligible period. Before you sign anything, confirm the exact date on your purchase agreement.

How Much Could a GTA Buyer Actually Save?

Let’s put real GTA numbers on it. A new condo in Mississauga or a townhome in Brampton priced at $850,000 would see the full 5% federal tax removed — a saving in the range of $42,500 on the GST portion. A larger new build in Toronto at $1.2 million would still qualify for a partial rebate worth several thousand dollars. For a first-time buyer who has spent years saving, recovering tens of thousands of dollars can be the difference between qualifying and being shut out.

Context matters too. The Bank of Canada held its policy rate at 2.25% on June 10, 2026, and the best five-year fixed insured rates are sitting around 4.04%, with discounted variable options near 3.35% (according to Ratehub). Meanwhile, CREA reported May home sales down 5.1% from a year earlier but with “meaningful upward momentum” building month over month. Translation: buyers currently have negotiating power, builders are motivated, and a five-figure tax rebate stacked on top can meaningfully improve your buying position.

How to Claim the Rebate

There are two paths. You can claim the rebate directly through the Canada Revenue Agency after closing, or you can assign it to the builder, who credits it against your purchase price — much like the existing GST/HST New Housing Rebate works today. Most buyers prefer the builder-credit route because it reduces the cash needed up front rather than waiting for a refund.

A word of caution: Ontario’s own new-home HST relief is still awaiting final rules, and some builders are structuring contracts around the federal changes in different ways. The fine print in your agreement of purchase and sale determines whether the rebate is built into your price or claimed separately. This is exactly the kind of detail worth reviewing with a mortgage broker and a real estate lawyer before you sign.

Practical steps to take right now

• Confirm your agreement date. Only contracts signed on or after May 27, 2025 qualify.
• Check the home’s price against the tiers. Under $1 million captures the full rebate; $1 million to $1.5 million is partial.
• Verify how the builder is handling it. Ask whether the rebate is credited at closing or claimed after.
• Get pre-approved first. Knowing your true budget — rebate included — keeps you from overextending.

A GTA Broker’s Perspective

In 12-plus years arranging mortgages across the GTA, I have watched government incentives come and go, and most are smaller than the headlines suggest. This one is genuinely substantial for first-time buyers of new construction. But a rebate is only useful if the underlying mortgage is structured well. I have access to more than 50 lenders, which means I can match a first-time buyer with a product that accounts for the rebate, the deposit structure of a pre-construction purchase, and the long closing timelines that come with new builds in Toronto, Mississauga, and Brampton.

If you are weighing a new build, do not treat the GST rebate as an afterthought. Build it into your plan from day one — your down payment math, your closing-cost budget, and your pre-approval all change once you factor it in. The buyers who win in this market are the ones who move with a clear, financed plan rather than waiting for “perfect” conditions that never arrive.

Ready to Make Your Move?

The first-time home buyer GST rebate could save you thousands on a new home in the GTA — but only if your purchase is structured correctly from the start. Let’s map out your numbers together. Contact KSD Mortgages for a free consultation at 647-802-3738 or application@ksdmortgages.com.