Build on Your Own Land:
You May Qualify for Up to $130,000 in HST Relief

Many Ontario homeowners know that buying a new home may qualify for HST relief.

But fewer people know this: building a new home on land you own — or hiring someone to build or substantially renovate a home on your land — may also qualify.

For GTA homeowners thinking about a Garden Suite, Laneway Suite, or Multi-Plex project, Ontario’s 2026 HST relief proposal may create one of the best planning opportunities in years.

What Is the New HST Relief?

Ontario’s 2026 HST relief proposal is designed to temporarily reduce or eliminate HST on eligible new homes and eligible rental units.

For eligible new homes or rental units valued up to $1 million, the combined relief may reach up to 13%, or a maximum of $130,000.

This includes:

• Up to $80,000 from the provincial portion of HST
• Additional relief equivalent to up to the 5% federal portion

The program is intended to apply to eligible new homes, substantially renovated homes, and eligible rental units, subject to final rules and qualifications.

Why This Matters for Homeowners

This is not only about buying a new house from a builder.

Ontario’s backgrounder says enhanced rebate eligibility may include an individual who is building or substantially renovating, or hiring someone else to build or substantially renovate, a home on land the individual owns or leases.

That means some owner-built projects may be relevant, including certain:

• Garden Suites
• Laneway Suites
• Multi-Plex projects
• Long-term rental housing projects
• Major residential renovations

The exact rebate path depends on how the home is used. A home built for personal use may be treated differently from a unit built for long-term rental.

The Timing Window Is Important

For owner-built homes, the enhanced rebate generally requires construction or substantial renovation to:

This timing matters.

If you are thinking about building, the planning process should start early. Before construction can begin, most projects need feasibility review, design, permit drawings, municipal approvals, budgeting, and contractor coordination.

Could a Garden Suite Qualify?

A Garden Suite may qualify if it meets the applicable rules, but it depends on the project details.

Important factors may include:

• Whether the unit is new construction
• Whether it is used as a primary residence or long-term rental housing
• Whether construction starts within the eligible window
• Whether the project is substantially completed by the deadline
• Whether HST is properly documented through contractor invoices
• Whether the project meets CRA and Ontario rebate requirements

For long-term rental projects, the New Residential Rental Property Rebate rules may apply. For owner-occupied or family-use projects, a different rebate path may apply.

This is why homeowners should speak with a qualified accountant or tax advisor before relying on any rebate estimate.

First Step: Check Whether Your Property Can Support New Housing

The HST rebate opportunity is only useful if your property can actually support a new housing project.

Before spending money on full drawings or construction planning, start by checking basic property feasibility.

ARVO Backyard Homes helps GTA homeowners review:

• City and zoning requirements
• Backyard width and depth
• Fire access path
• Garden Suite or Laneway Suite potential
• Multi-Plex possibilities
• Permit and construction planning path

Start Here

If you are thinking about building a Garden Suite, Laneway Suite, or Multi-Plex, now is the time to start planning.

• Step 1: Learn how the HST rebate may work.
• Step 2: Check whether your property may support new housing.
• Step 3: Speak with your accountant or tax advisor before making final decisions.

This article is for general information only and does not provide tax, legal, financial, or accounting advice. HST rebate eligibility depends on CRA / Ontario rules, project use, timing, property details, final legislation, and individual circumstances. Please consult a qualified tax professional before making construction or investment decisions.