What Happens to Your HST Rebate If You Don't Move Into Your New Home in Ontario

Warning: If you claimed the HST New Housing Rebate on a newly built or substantially renovated home in Ontario but did not actually move in — or did not move in quickly enough — the Canada Revenue Agency can demand the full rebate back, plus interest and penalties. This is not a theoretical risk. CRA audits closing transactions, and the consequences of a failed residency test can reach tens of thousands of dollars. Read this before you close.

Ontario buyers of newly built homes are often entitled to a rebate of a portion of the HST they pay — reducing the tax burden on what is already one of the largest purchases of their lives. The HST New Housing Rebate (combining the federal GST/HST component and the Ontario new housing rebate) is structured to benefit owner-occupiers, not investors. The central requirement is straightforward: the home must become your primary place of residence, or the primary place of residence of a qualifying family member.

When that requirement is not met — because you intended to rent the property, you relocated for work, or you simply changed your plans after closing — the rebate must be repaid. The dollar amounts involved, as well as the precise thresholds and limits, can change, so treat any figures in this article as a starting point and verify current amounts directly with CRA or a qualified tax professional.

The Primary Residence Requirement: What the Law Expects

The Excise Tax Act (federal) and the corresponding Ontario legislation governing the rebate share the same foundational condition: at the time of purchase or first occupancy, the buyer (or a qualifying relation) must intend to use the home as a primary place of residence. Intent is assessed at closing — but CRA also looks at what actually happened afterward.

"Primary place of residence" means the home where you ordinarily live. You can only have one. A cottage, investment property, or a unit you purchased to rent out does not qualify, even if you occasionally sleep there. The rebate was designed to lower the cost of homeownership for people who genuinely live in the home, and CRA takes that purpose seriously when auditing.

What "Moving In" Actually Means

Signing a purchase agreement and getting the keys is not enough. CRA requires that you actually occupy the property as your home. Signing a lease with a tenant the same week as closing, listing the property on a short-term rental platform, or taking possession and immediately relisting the home will each signal to CRA that you never intended to use the home as your primary residence.

Occupancy means living there day-to-day: sleeping, eating, receiving mail, connecting utilities in your name, and treating the address as the centre of your domestic life. A brief period between closing and moving in is normal and does not disqualify you. But the gap matters, as discussed below.

The Time Window: When Must You Occupy?

The legislation sets a time window within which you must begin occupying the home as your primary residence. As of writing — verify with CRA — the requirement is generally that you must occupy the home before the end of a specified period after the earlier of the date ownership transferred and the date possession was given. CRA's published guidance and your specific purchase agreement structure will govern the exact timing in your case.

If you do not move in within that window, CRA's position is that the rebate eligibility condition was never satisfied. The rebate becomes repayable from that point, regardless of what you intended at closing.

What CRA Looks For When Auditing Occupancy

CRA has a range of documentary and administrative tools to verify whether a buyer truly occupied a new home as their primary residence. Common indicators CRA examines include:

1. Mailing address changes. Did you update CRA itself, your bank, your employer, and government ID to reflect the new address?
2. Ontario driver's licence and health card. ServiceOntario records show when you updated your address. A driver's licence still showing your old address months after closing is a red flag.
3. Utility accounts. Hydro, gas, and water accounts in your name at the property — and active consumption — demonstrate occupancy. Accounts that stay in a builder's name, or switch immediately to a tenant's name, suggest you never lived there.
4. Canada Post and banking records. Credit card statements, bank statements, and CRA correspondence delivered to the property address are positive evidence of occupancy.
5. School enrollment and medical records. For families, enrolling children in a local school or registering with a local family doctor supports an occupancy claim.
6. Lease agreements and rental listings. Any signed lease, Airbnb listing, or property management contract is strong evidence against genuine owner-occupancy.

CRA may also cross-reference land transfer records, builders' new home warranty registrations, and tax returns to build a picture of where you actually lived.

Consequences of a Failed Residency Test

If CRA determines the primary residence requirement was not met, the consequences stack up quickly:

1. Full repayment of the rebate. The entire rebate amount — which can be significant on a high-value new build — becomes a debt owed to the Crown.
2. Interest. CRA charges prescribed interest on the outstanding amount, compounded daily, running from the date the rebate was originally paid. The longer the gap between filing and audit, the larger the interest accumulation.
3. Penalties. If CRA finds that you misrepresented your intentions — for example, claiming the rebate while knowing you planned to rent — gross negligence or false statement penalties can apply on top of the repayment and interest.
4. Audit exposure on related returns. A rebate audit can open the door to broader scrutiny of your income tax filings, particularly if rental income was not reported.

The combination of repayment, compounded interest, and potential penalties can substantially exceed the original rebate amount in cases where the audit is conducted years after closing.

When a Qualifying Family Member Can Save Your Rebate

The legislation permits the rebate where the home will be used as the primary place of residence by a "relation" of the buyer, as defined in the Excise Tax Act. A qualifying relation generally includes a spouse or common-law partner, a parent, child, sibling, grandparent, grandchild, aunt, uncle, niece, or nephew.

If you purchase a new home and your parent or adult child moves in as their primary residence — and genuinely lives there — the rebate may still be available even though you do not personally occupy the property. The key conditions are that the relation must use the home as their primary place of residence, not yours, and the same evidence of genuine occupancy applies to them.

This is not a loophole to purchase investment properties through a family member's name. CRA examines the substance of the arrangement, not the form.

How to Document Your Occupancy (Practical Checklist)

If you are entitled to the rebate and genuinely moving in, build a paper trail from day one:

1. Update your address with CRA, ServiceOntario (driver's licence and health card), your employer's payroll, and your bank — ideally on or within days of closing.
2. Open utility accounts (hydro, gas, water, internet) in your name at the new address before or immediately upon closing.
3. Redirect Canada Post mail delivery to the new address.
4. File your next income tax return using the new address.
5. Register with a local family doctor, dentist, or other recurring service provider at the new address.
6. Keep copies of any correspondence (bank statements, insurance policies, government letters) that shows your name and the new address in the months immediately after closing.
7. If a qualifying family member is occupying instead of you, document their occupancy in the same way — in their name, not yours.

Retain these records for at least six years after closing. CRA's audit window is long, and documentation that feels unnecessary today can be invaluable years later.

Frequently asked questions