The Harmonized Sales Tax (HST) applicable to new homes in Ontario materially affects acquisition costs and requires careful assessment by prospective purchasers. HST combines the federal Goods and Services Tax (GST) with the provincial component. This article explains how HST is calculated, who may qualify for the GST/HST New Housing Rebate, the key legal considerations in transactions, and the procedural steps to claim the rebate. Readers will obtain a clear statement of obligations and potential savings when purchasing a new home in Ontario.
How is HST Calculated on New Homes in Ontario?
HST on new homes in Ontario is based on the purchase price. The HST rate is 13% (5% federal GST + 8% provincial tax). To calculate the HST payable, multiply the purchase price by 0.13. For illustrative purposes, a $500,000 purchase would produce the HST amount shown below.
- HST Amount: $500,000 x 0.13 = $65,000
This computation is necessary for accurate budgeting, since HST can materially increase the total acquisition cost. Specific exemptions and rebate provisions may apply and can reduce the effective tax burden for eligible buyers.
Who is Eligible for the GST/HST New Housing Rebate in Ontario?

The GST/HST New Housing Rebate allows qualifying purchasers to recover a portion of the HST paid on a new home. Eligibility is determined by specific criteria, as set out below:
- New Home Purchase: The rebate applies to newly constructed homes, substantially renovated homes, or homes purchased from a builder.
- Primary Residence: The home must be intended as the primary residence of the buyer.
- Purchase Price Limit: The rebate is available for homes priced up to $350,000. For homes priced between $350,000 and $450,000, the rebate amount decreases gradually.
Qualified purchasers may realize meaningful financial relief through the rebate, improving overall affordability.
Zinati Kay Barristers and Solicitors, a Toronto-based law firm specializing in real estate law, can provide legal guidance to ensure that homebuyers address HST issues and the rebate application process effectively.
What Legal Considerations Affect HST on New Home Transactions?
Several legal considerations affect the HST treatment of a new-home transaction. Identifying and addressing these matters is essential to avoid unexpected liabilities and to preserve entitlement to any applicable rebates:
- Contractual Obligations: The purchase agreement should clearly state the HST obligations, including whether the price is inclusive or exclusive of HST.
- Builder’s Registration: Confirm that the builder is registered for HST purposes, as this affects the ability to claim the rebate.
- Compliance with Tax Regulations: Homebuyers must understand the implications of HST on closing costs and other fees associated with the purchase to ensure compliance with Ontario tax law.
Engaging a real estate lawyer can help buyers navigate these legal complexities and ensure compliance with applicable regulations.
How to Claim the GST/HST Rebate on New Homes in Ontario?

The rebate claim process is straightforward in structure but requires precise documentation and accurate completion of forms. The following steps summarise the procedure for eligible purchasers:
- Obtain the Rebate Application Form: Homebuyers can download the application form from the Canada Revenue Agency (CRA) website or request it from their builder.
- Complete the Application: Fill out the form with accurate information, including details about the home purchase and the buyer’s eligibility.
- Submit Required Documents: Along with the application, submit necessary documentation, such as the purchase agreement and proof of payment of HST.
- Submit the Application: Send the completed application and supporting documents to the CRA for processing.
| Document Required | Description | Purpose |
|---|---|---|
| Purchase Agreement | Legal document outlining the terms of the sale | Proof of home purchase |
| Proof of HST Payment | Receipt or invoice showing HST paid | Verification of tax payment |
| Rebate Application Form | Official form to claim the rebate | Initiates the rebate process |
By following these steps, homebuyers can complete the GST/HST rebate claim and potentially realize savings of several thousand dollars on their new home purchase.
A thorough understanding of HST rules and available rebates is essential for purchasers in Ontario. With competent legal advice and familiarity with the procedural requirements, buyers can mitigate tax exposure and realize meaningful financial benefits.
Sellers should consult a lawyer to sell property in Toronto to secure a smooth and legally compliant transaction.