Is there a deadline after closing to apply for the New Residential Rental Property Rebate on a condo?

Yes, the New Residential Rental Property Rebate has to be applied for within a set filing window measured from when the relevant event happens, generally tied to when HST became payable on the unit or when the self-assessment occurred, rather than being open-ended. Because that window is a hard cut-off rather than a guideline, missing it can mean losing the rebate entirely, even if the underlying rental use clearly qualifies.

For a newly built condo bought to rent out, the countdown effectively starts around closing, when GST/HST on the purchase becomes payable, which is exactly when many buyers are focused on financing, moving in a tenant, and other closing logistics rather than tax filings. That timing mismatch is a common reason buyers miss the deadline or file late.

Because the exact filing period should be confirmed at the time of your purchase, and can interact with when the property is actually tenanted, don't wait until well after closing to look into this, flag the NRRP rebate to your advisor as part of the closing process itself, so the application deadline is tracked from day one rather than discovered after it's already passed.