Understanding the HST Rebate for Pre-Construction Home Buyers in Ontario: 2026 Guide

Updated August 20, 2026

Buying a pre-construction home in Ontario comes with many financial considerations, and one of the most misunderstood is the HST rebate.

Recent federal and Ontario government changes have made the potential savings significantly larger. Depending on when you purchase, the price of the home, whether it will be your primary residence, and whether you are a first-time buyer, an eligible purchaser could receive up to $130,000 in combined HST relief.

But there is an important catch: not every buyer qualifies for the same rebate, and not every pre-construction purchase qualifies for the new enhanced programs.

This guide explains what Ontario pre-construction buyers need to know in 2026.

First: What Is HST on a New Home in Ontario?

Ontario’s Harmonized Sales Tax is 13%, consisting of:

Newly constructed and substantially renovated homes are generally subject to HST.

In many builder transactions, buyers don’t see a separate 13% charge simply added to the advertised purchase price. Builder agreements and price lists commonly contain specific provisions dealing with HST and available rebates.

That is why you may see terms such as:

The wording of the Agreement of Purchase and Sale matters. Buyers should have their lawyer review the HST provisions rather than assuming the advertised price automatically represents their final HST treatment.

What’s New in 2026?

There are now several rebate programs that can overlap, so buyers need to distinguish them carefully.

1. Federal First-Time Home Buyers’ GST/HST Rebate

The federal government introduced a new rebate that can eliminate the 5% federal portion of HST for qualifying first-time buyers purchasing eligible new homes.

Importantly, this is no longer merely a proposal.

The legislation received Royal Assent in March 2026, and the Canada Revenue Agency is accepting applications.

For an eligible first-time buyer:

New home up to $1 million:

Up to 100% of the 5% federal portion can be rebated, for maximum federal relief of $50,000.

Between $1 million and $1.5 million:

The rebate is gradually reduced.

At $1.5 million or more:

The new federal first-time-buyer GST rebate is no longer available.

For a home purchased from a builder, the Agreement of Purchase and Sale generally must have been entered into on or after March 20, 2025 and before 2031, along with other construction, completion, ownership and occupancy requirements.

Who Is Considered a First-Time Home Buyer?

For this particular federal rebate, the definition is more specific than simply saying, “I’ve never bought a house before.”

Generally, an individual must:

Other conditions also apply.

This means someone who owned a property many years ago could potentially qualify again depending on their circumstances and the timing rules.

2. Ontario’s First-Time Home Buyers’ HST Rebate

Ontario also introduced relief for qualifying first-time buyers covering the 8% provincial portion of HST.

Eligible Ontario first-time buyers can potentially receive up to:

$80,000 of provincial relief

When combined with up to $50,000 of federal relief, an eligible first-time buyer purchasing an eligible new home could therefore receive as much as:

$130,000 in combined HST relief.

For an eligible new home valued at $1 million, this can effectively represent relief equal to the entire 13% HST, subject to all applicable conditions.

3. The Major 2026 Change: Ontario Expanded the Rebate Beyond First-Time Buyers

This is particularly important for today’s pre-construction market.

Ontario introduced the temporary Ontario Enhanced New Housing Rebate (ENHR).

Unlike the federal first-time-buyer rebate, the Ontario enhanced program is not restricted only to first-time home buyers.

An eligible purchaser buying a qualifying new home for use as a primary residence may qualify even if they have owned a home before.

For a typical home-and-land purchase directly from a builder, one of the critical requirements is timing:

The Agreement of Purchase and Sale must generally be entered into between:

April 1, 2026 and March 31, 2027.

Other construction and completion deadlines also apply.

For these purchases, construction or substantial renovation generally must begin by December 31, 2028, and be substantially completed by December 31, 2031.

How Much Is Ontario’s Enhanced Rebate?

For an eligible purchase:

Home valued up to $1 million

Ontario’s enhanced rebate can provide 100% relief from the 8% provincial portion, up to:

$80,000

Between $1 million and $1.5 million

The provincial rebate can remain at a maximum:

$80,000

Between $1.5 million and $1.85 million

The enhanced provincial rebate is progressively reduced.

$1.85 million and above

The temporary enhancement no longer applies, although an eligible purchaser may still qualify for the existing Ontario New Housing Rebate, which can provide up to $24,000.

But Where Does the Other 5% Come From for Non-First-Time Buyers?

This is one of the most important – and most easily misunderstood – parts of Ontario’s 2026 program.

A repeat buyer normally wouldn’t qualify for the new federal First-Time Home Buyers’ GST Rebate.

Ontario therefore created additional relief connected to the federal 5% portion through the Ontario New Home Affordability Payment (ONHAP).

For an eligible purchaser who qualifies for Ontario’s Enhanced New Housing Rebate, this additional Ontario relief can provide the equivalent of up to another 5%, subject to the program rules.

That is how an eligible repeat buyer purchasing during Ontario’s temporary qualifying period can potentially receive combined relief reaching 13%, even though that buyer is not a first-time home buyer.

Potential HST Relief – Simple Examples

The following examples illustrate the potential maximum relief under Ontario’s temporary enhanced program, assuming all eligibility requirements are satisfied.

These examples are simplified. The actual rebate is calculated according to the applicable legislation, tax payable, purchase structure and the buyer’s circumstances.

The $1 Million Example

Suppose you purchase an eligible new construction home with a qualifying value of:

$1,000,000

Potential relief could include:

8% Ontario portion:

$80,000

5% federal portion or applicable Ontario top-up:

$50,000

Potential combined relief:

$130,000

This does not necessarily mean the buyer receives a $130,000 cheque after closing.

That distinction is extremely important.

How Does the Rebate Actually Work When Buying From a Builder?

There are generally two ways a housing rebate may affect a builder transaction.

Option 1: The Builder Credits the Rebate

Where permitted and agreed to by the builder, the builder may credit the applicable rebate to the purchaser as part of the closing transaction.

The buyer completes the required rebate documentation, and the builder submits the applicable claim.

For Ontario’s Enhanced New Housing Rebate, CRA confirms that builders can now credit eligible buyers with the provincial rebate. Ontario’s additional 5% top-up can also be incorporated into the process, subject to the applicable requirements.

This is why a buyer may receive the financial benefit of the rebate without personally receiving a large cheque from CRA after closing.

Option 2: The Buyer Applies for the Rebate

Depending on the transaction and how the builder handles HST, a purchaser may instead have to pay the applicable amount and claim the rebate afterward.

The procedure and forms depend on which rebate is being claimed.

For homes purchased directly from builders, CRA’s Form GST190 and the applicable Ontario schedule are important parts of the process.

A buyer’s real-estate lawyer should review the Agreement of Purchase and Sale and closing statement to determine exactly how the builder is treating HST and the rebates.

Why Does My Builder’s Price List Show a Smaller “Proposed HST Rebate”?

This is a common question in today’s market.

You might see government information saying:

“Up to $130,000 in HST relief.”

Then a builder’s price list might show a smaller estimated or proposed rebate.

That does not automatically mean the builder has calculated it incorrectly.

Several factors can affect what appears on a builder’s worksheet or price list, including:

The phrase “up to $130,000” is a maximum, not an automatic rebate for every purchaser.

Never subtract $130,000 from a builder’s advertised price unless the builder’s pricing and Agreement of Purchase and Sale specifically support that calculation.

What If I’m Not a First-Time Buyer?

This is where the 2026 Ontario changes are particularly valuable.

If you are purchasing an eligible new home from a builder between April 1, 2026 and March 31, 2027, you may potentially qualify for Ontario’s temporary enhanced relief even though you previously owned a home.

The property generally needs to qualify under the Ontario New Housing Rebate rules and be acquired for use as the primary residence of you or a qualifying relation.

Therefore:

First-time buyer?

Potential federal and Ontario first-time-buyer rebates may apply.

Not a first-time buyer?

Ontario’s temporary Enhanced New Housing Rebate and related relief may still apply if the transaction meets the qualifying conditions.

That distinction is one of the biggest changes Ontario pre-construction buyers should understand in 2026.

What About Investors and Rental Properties?

Buying a pre-construction property as an investment is different from buying it as your principal residence.

A purchaser acquiring the property strictly for rental purposes generally would not claim the owner-occupied New Housing Rebate on the basis that the property will be their principal residence.

Instead, qualifying investors may need to use the GST/HST New Residential Rental Property Rebate (NRRPR) framework.

Ontario’s temporary 2026 measures also include an Enhanced New Residential Rental Property Rebate for qualifying rental properties.

However, rental rebate eligibility has its own rules and documentation requirements.

Investors should therefore not assume that a rebate advertised for an owner-occupied purchase applies to them in exactly the same way.

What Happens If You Claim the Rebate but Don’t Qualify?

Buyers need to take this seriously.

The CRA specifically states that the buyer is responsible for ensuring they qualify for the Ontario Enhanced New Housing Rebate.

If a builder credits a rebate at closing and CRA later determines that the purchaser was not entitled to it, the purchaser can be required to repay the rebate.

For example, issues can arise when a purchaser represents that a home will be used as a principal residence but the facts do not support the applicable rebate requirements.

This is why buyers should never sign HST rebate declarations without understanding them.

What About Assignment Sales?

Assignments require extra attention.

Under the Ontario Enhanced New Housing Rebate rules, where an assignment is involved, both the original Agreement of Purchase and Sale with the builder and the assignment agreement generally need to fall within the qualifying April 1, 2026 to March 31, 2027 period for the enhanced rebate.

Ontario and CRA rules also prevent buyers from simply cancelling or restructuring an older agreement for the purpose of artificially bringing the transaction into the enhanced-rebate window.

If an earlier agreement is terminated and a new agreement is entered into, there must be a bona fide reason other than simply obtaining the enhanced rebate.

Important Dates to Remember

Federal First-Time Home Buyers’ GST/HST Rebate

For a typical home purchased from a builder:

Agreement signed:

On or after March 20, 2025 and before 2031

Construction begins:

Before 2031

Substantially completed:

Before 2036

Ownership transferred:

Before 2036

Other eligibility requirements apply.

Ontario Enhanced New Housing Rebate

For a typical home-and-land purchase from a builder:

Agreement signed:

April 1, 2026 to March 31, 2027

Construction begins:

By December 31, 2028

Substantially completed:

By December 31, 2031

Other requirements apply depending on the type of transaction.

The dates are important because a home closing in 2028, for example, could still qualify if the Agreement of Purchase and Sale and construction fall within the applicable qualifying periods.

Is the New HST Rebate Actually Implemented?

Yes — but it is important to identify which program you mean.

As of August 21, 2026:

Federal First-Time Home Buyers’ GST/HST Rebate:

Enacted. The federal legislation received Royal Assent in March 2026, and CRA applications are open.

Ontario First-Time Home Buyers’ provincial rebate:

Available, subject to eligibility requirements.

Ontario Enhanced New Housing Rebate:

Implemented through the applicable federal HST regulations and Ontario measures.

Ontario’s additional 5% relief / New Home Affordability Payment:

The legislative and regulatory framework has been established as part of Ontario’s enhanced relief. It works alongside the Ontario Enhanced New Housing Rebate, subject to the applicable eligibility and administrative rules.

CRA has updated Form GST190 to include Ontario’s Enhanced New Housing Rebate, and builders can now credit eligible purchasers. CRA has stated that applications containing the Ontario ENHR will begin being processed in fall 2026 as its processing-system changes are implemented.

That distinction matters: a program can be legally implemented even though CRA’s processing systems are still being updated.

Frequently Asked Questions

Can I get $130,000 back on a $1 million pre-construction home?

Potentially, yes.

An eligible purchaser of an eligible $1 million new home may qualify for combined relief of up to $130,000.

But eligibility, purchase date, occupancy, purchase structure and other conditions must all be satisfied.

Is the $130,000 only for first-time home buyers?

No.

First-time buyers have specific federal and Ontario programs.

Ontario’s temporary 2026 Enhanced New Housing Rebate significantly expands relief to other eligible purchasers as well, subject to its narrower purchase window and other requirements.

Do I have to live in the property?

For the owner-occupied Ontario New Housing Rebate framework, the home generally needs to be acquired for use as the primary place of residence of the purchaser or a qualifying relation.

Rental investors use a different rebate framework.

Can my parents or children live there?

Potentially. Existing new-housing-rebate rules can recognize a qualifying relation’s primary residence, subject to the applicable definition and other requirements.

Do not assume every family arrangement qualifies; obtain advice for your particular situation.

Does the builder automatically give me the rebate?

Not necessarily.

The Agreement of Purchase and Sale determines how the builder handles HST and available rebates. Some builders credit applicable rebates at closing; other circumstances may require the purchaser to claim afterward.

Is the rebate based on the advertised builder price?

Not necessarily.

HST calculations use the applicable tax rules and consideration or fair-market-value concepts depending on the transaction. Builder advertisements may already incorporate assumed rebates.

Can I qualify if I bought a home before?

Potentially.

You may not qualify as a federal first-time buyer, but Ontario’s temporary Enhanced New Housing Rebate does not require every eligible purchaser to be a first-time buyer.

The Bottom Line for Ontario Pre-Construction Buyers

The HST landscape for new homes has changed significantly in 2026.

For eligible purchases, the potential savings can be substantial:

Up to $50,000

from relief related to the 5% federal portion,

plus

Up to $80,000

from relief related to Ontario’s 8% portion,

for potential combined relief of:

Up to $130,000.

But the headline number should never be treated as an automatic discount.

Your eligibility depends on factors including:

For buyers considering pre-construction in Ontario during the current qualifying window, understanding these rules before signing an Agreement of Purchase and Sale can be particularly important.

Thinking About Buying a New Home in Ontario?

At New Home Source, we help buyers explore pre-construction and newly built home opportunities across Ontario, including current builder pricing, incentives, deposit structures, available inventory and closing timelines.

If you’re considering a new home, understanding the potential HST relief can help you compare opportunities more accurately.

Contact New Home Source to explore current new-home opportunities and builder incentives available across Ontario.

Disclaimer: This article is provided for general informational and real-estate marketing purposes only and does not constitute tax, accounting or legal advice. HST rebate eligibility depends on the facts of each transaction and applicable legislation. Government programs and administrative procedures may change. Buyers should have their Agreement of Purchase and Sale and rebate eligibility reviewed by a qualified real-estate lawyer and, where appropriate, a tax professional before relying on any rebate or making a purchase decision.