TREADSTONE LAW · ONTARIO · DIGITAL LEGAL SERVICES · EST. MMXXI ·TSL
Licensed by the Law Society of OntarioFlat fees published upfrontWe reply to messages within 1 business daySign in
№ ix Tax

When Is GST/HST Payable on a New Home from a Builder in Canada?

Learn how the timing of completion, ownership transfer and occupancy affects the GST/HST new housing rebate when you buy from a builder in Canada.

Tax6 min readTSLBy the Treadstone Law Team · CanadaUpdated November 6, 2026
← All articles
Key takeaways
  • For a builder purchase, the base rebate requires that ownership transfers after substantial completion and that you have paid all applicable tax.
  • The two-year deadline to claim a builder-purchase rebate runs from the date ownership transfers, and a late claim is generally not accepted.
  • If the builder credits the rebate on closing, you do not send the application yourself; an assignee must claim directly from CRA.

You have signed an agreement to buy a new home, and the building is still going up. One of the first questions is when the GST/HST actually has to be paid, and what that does to any rebate you might claim. The answer matters because several rebate rules are tied to specific moments: completion, the transfer of ownership, and the day someone first lives in the home.

This article walks through those moments in plain language. It does not replace a review of your own purchase agreement and statement of adjustments. The exact point at which tax becomes payable depends on the facts of your deal, so confirm that with a lawyer or accountant. What we can lay out is how the timing links to the federal new housing rebates.

This article covers Canadian federal tax law, which applies in every province.

Why timing matters for the rebate

When you buy a new home before it is finished, you are usually dealing with a long gap between signing and moving in. The rebate rules do not look only at the price. They also look at when the home was substantially complete, when ownership passed to you, and who first occupied it.

For a house bought from a builder, the base rebate applies where the builder sells a new single unit residential complex or a residential condominium unit to an individual who buys it as their own or a relation's primary place of residence, total consideration is under $450,000, the individual has paid all applicable tax, and ownership transfers after substantial completion.

The key moments and what each one affects

MomentWhy it matters
Substantial completionFor the base builder-purchase rebate, ownership must transfer after the home is substantially complete.
Ownership transferThe two-year window to apply for a house bought from a builder runs from this date.
First occupancyThe first person to occupy the home as a residence must be you or a relation, unless you make an exempt sale before anyone occupies it.
Date of the agreementFor the first-time home buyers' rebate, the agreement must be entered into after March 19, 2025 and before 2031.

For a house on leased land, the two years run from the date possession was transferred rather than the date of ownership transfer. The statute does not set a number of days within which you must move in, but your intent to use the home as a primary place of residence must be evident at the outset.

How price and tax paid shape the amount

The rebate is a percentage of the tax you paid, not of the price. CRA's guide says to multiply the GST or federal part of HST paid by 36%, capped at $6,300. For a builder purchase, the thresholds are tested against total consideration, which is the purchase price excluding GST/HST and certain other amounts.

For homes above $450,000, the first-time home buyers' rebate may apply if you qualify. For a new home with total consideration of $1,000,000 or less, it is the lesser of $50,000 and the tax paid, minus any base rebate. Between $1,000,000 and $1,500,000 it phases out, and at $1,500,000 or more it is nil. A buyer who fails the first-time buyer test may still qualify for the regular new housing rebate.

Closing, builder credits and assignments

On closing, the builder may pay the rebate to you or credit it against the price. If it does, you do not send the application, and the builder files it with its return. If the builder does not pay or credit it, you generally have up to two years from the date ownership was transferred to claim it on Form GST190.

Assignments work differently. Only the builder who sells the house can pay or credit the rebate, so an assignee must claim directly from CRA on Form GST190. With an assignment there may be two builders, and you may pay GST/HST to the original builder and to the assignor for the interest transferred. A first-time buyer who takes over another person's builder agreement signed before the cut-off date set out in the Finance announcement cannot claim the first-time buyer rebate.

Be careful about a missed deadline. CRA considers late requests only for owner-built homes in extraordinary circumstances, so a missed two-year deadline on a builder purchase generally means the rebate is lost. Also, a rebate paid to someone who was not entitled to it must be repaid, and if a builder paid or credited it knowing, or when it ought to have known, that the individual was not entitled, both can be jointly liable.

What to do next

If your purchase involves an assignment, a corporation or partnership as a co-owner, a bare trust or a home bought for a relation, get advice before closing. Only individuals can claim the new housing rebate, and an individual cannot claim if a partnership or corporation co-owns the house.

Frequently asked questions

Can I get the rebate if the builder does not credit it on closing?

Generally yes. If the builder does not pay or credit the rebate, you can usually claim it yourself on Form GST190 within two years from the date ownership was transferred. The builder may pay or credit it only if it agrees to do so.

Does it matter when I move in?

The statute does not set a number of days to move in. What matters is that the first occupant is you or a relation, and that your intent to use the home as a primary place of residence was evident at the outset.

What if I buy an investment property from a builder?

An investor who will not live in the unit cannot claim the owner rebate. A non-builder purchaser may instead be able to claim the new residential rental property rebate, which is a separate rebate with its own conditions, and a corporation buying to rent out can claim it on Form GST524 if the purchase was taxable and it is not the builder.

Can a parent claim when buying for an adult child?

It can be possible. The house may be the primary place of residence of the buyer or a relation, so a parent may qualify if all other conditions are met and the first occupant is the buyer or a relation. Relations include children, spouses, common-law partners and, for this rebate, former spouses.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Canadian laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a tax lawyer or accountant. Reach us at 1-844-900-1070 or send our Team a message.

This is a tax question

A tax planning consult with us is from $563.87, tax included. Third-party fees are extra.

ContactStart a File →