Ontario New Home HST Rebate 2026 | Rules, Dates & Buyer Risks

What the 2026 rebate actually is

Ontario announced the expanded relief on March 25, 2026, and it became law over the spring: Ontario’s Bill 114 (the HST Relief Implementation Act) received Royal Assent on May 12, 2026, the federal government partnered to rebate its 5% GST portion through Bill C-26 (Royal Assent June 18, 2026), and Ontario Regulation 196/26 delivered the provincial 8% top-up on June 22, 2026. The combined relief is in force retroactive to April 1, 2026. As of mid-2026, some updated CRA application forms were still being released.

Ontario’s HST is 13% – a 5% federal portion plus an 8% provincial portion. On a qualifying new home up to $1 million, the enhanced rebate can return the full 13%, which works out to the headline $130,000 (about $50,000 federal plus $80,000 provincial). That is a meaningful change from the old rebate, which was capped far lower and had not kept pace with modern Ontario prices – $450,000 does not buy what it used to.

How the rebate scales with price

So it is not accurate to say “the government is paying the HST now.” The precise version: the enhanced rebate returns up to the full 13% on qualifying homes to $1 million, holds the $130,000 cap to $1.5 million, then tapers to the existing $24,000 rebate by $1.85 million.

Who qualifies, and the dates that control it

The relief applies to several kinds of new housing, but the common thread is that dates, use, and construction milestones matter. The home generally has to be a primary place of residence or a qualifying long-term rental.

Buying a new home from a builder

The enhanced relief is generally available where the agreement of purchase and sale is signed on or after April 1, 2026 and on or before March 31, 2027, and the home meets the construction and substantial-completion timing rules. The date on the agreement is what counts – not the day you started looking, not the day you toured the model, and not the day your spouse finally admitted the old house has one bathroom too few.

Owner-built homes

Ontario has many homeowners who own the land and hire trades directly or manage the project themselves. For owner-built homes, the relief is generally available where construction begins on or after April 1, 2026 and on or before March 31, 2027, and the home is substantially completed by the required deadline (owner-built and rental categories have their own completion backstops – confirm the current one for your case). Pay close attention to what “construction begins” means for rebate purposes – excavation, footings, permit issuance, and a signed contract are not always the same thing in tax rules. Get professional advice before you rely on it. See the HST rebate calculator and how to obtain a building permit in Ontario.

Long-term rental properties

The relief can also apply to certain new long-term residential rental properties, but rental rebate rules work differently – investors often apply directly rather than having a builder credit the rebate on closing, and lease evidence, first occupancy, and CRA review all matter. If you are building a legal rental suite, a garden suite, or a purpose-built rental, do not assume the same process as a principal residence.

Where first-time buyers fit in

First-time buyers have a related but separate benefit: the federal First-Time Home Buyers’ GST/HST rebate, which can eliminate the federal GST portion on eligible new homes up to $1 million, with reduced relief between $1 million and $1.5 million. Do not confuse the moving parts:

The key point: these do not all automatically stack. Some relief may be the greater of the available amounts rather than a pile-on of every headline number. Have your lawyer confirm which applies before you assume the advertised price is the final after-rebate reality.

The contract clause buyers must watch

The most important part of this whole issue may be one paragraph in the agreement of purchase and sale. Some builders advertise the lower after-rebate price but include language that if the buyer does not qualify, or the rebate is not available to the builder, the buyer must pay the difference. That is understandable from the builder’s side – they cannot absorb a six-figure tax risk because a form is late or a buyer does not meet the criteria. But for the buyer it is a serious risk.

You need to know whether the price you are seeing is the full HST-included price, the price after assigning a rebate to the builder, or a conditional price where you must repay the rebate amount if the rules do not work out.

Custom homes and owner-builders: the paperwork is part of the build

A custom home is not always as tidy as a subdivision sale. In a subdivision, the builder owns the land and controls a standard agreement. In a custom build, you may already own the land, hire the builder under a construction contract, and pay HST on invoices as the work progresses – which changes how the rebate is claimed. Owner-built rebate applications typically require careful records: invoices, worksheets, construction summaries, occupancy information, and proof the home is your primary residence.

So if you are building your own home, treat paperwork as part of the project. Set up a clean folder from day one and keep supplier and trade invoices (with HST numbers where applicable), permit documents, occupancy records, and proof of payment – the invoices need to be proper invoices, not text messages or “Harvey knows a guy” accounting. CRA is clear that estimates and quotes are not proof. Keep everything for the required record period.

Will the rebate actually make new homes cheaper?

It helps eligible buyers, but whether it makes homes truly cheaper depends on the market. The rebate cuts tax cost – it does not reduce land, development charges, financing, labour, materials, engineering, servicing, or the price of a decent window package. In a soft market it can improve affordability and bring buyers back; in a hot market, part of the benefit can get absorbed into pricing. That is not politics, it is basic market behaviour.

For custom homes the rebate can improve the overall budget, but it will not fix an unrealistic design. A complicated roofline is still a complicated roofline, a long rural driveway still costs money, and a full basement, triple garage, stone exterior, and radiant heating still need honest pricing. The rebate is tax relief, not a magic wand.

Ontario new home HST rebate 2026: FAQ

Note: figures and dates here are general and can change with regulations and CRA administration. Confirm current rules and your eligibility with your lawyer, accountant, and CRA before making financial decisions. Official references: the Ontario 2026 HST relief materials and CRA’s new-housing and first-time-buyer rebate pages.

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