How long after closing can I claim the HST rebate?

The usual answer is two years, but the date it runs from differs by situation, and that is where people get caught.

The general rule

For a new home bought from a builder, the deadline is broadly two years from the date you take ownership. For an owner-built home, it runs from the substantial completion of construction or from when you first occupy it, whichever applies.

For the federal first-time buyer rebate specifically, the guidance is generally within two years of taking ownership or of the completion of construction.

Do not confuse this with the signing deadline

Two entirely different clocks are in play, and mixing them up is common:

• The signing window decides whether you qualify at all. The ENHR requires signing between April 1, 2026 and March 31, 2027; the federal rebate requires signing before 2031.
• The filing deadline decides how long you have to claim once you do qualify.

You can sign inside the window, close four years later, and still have two years from closing to file. The signing window being shut does not shorten your filing window, but missing the signing window means there is nothing to file.

If the rebate was assigned

In the common case where you assigned the rebate to the builder, the filing obligation is the builder’s. You signed the forms at closing and you are done. There is no deadline for you to monitor.

The exception: if the builder’s claim is later disallowed and the indemnity clause bites, you may find yourself needing to make your own claim late in the day. Keep your closing documents, the agreement, the statement of adjustments, the signed rebate forms, rather than assuming you will never need them.

Rental claims

The NRRP rebate has its own timing tied to when the tax became payable. Investors who treat it as a someday task are the ones who miss it. File within the first few months after closing, with the lease in hand.

The practical advice

Keep a closing folder. Agreement, all amendments, statement of adjustments, signed rebate forms, and your lawyer’s reporting letter. If anything about the rebate is ever questioned, by CRA or by the builder, those five documents are the whole case, and reconstructing them years later is miserable.