Assigning a Pre-Construction Condo Before Closing in Ontario: Tax, Legal, and Practical Issues

You bought a pre-construction condo two years ago, the building is nearing completion, and circumstances have changed — a job relocation, a change in financial situation, or simply the realization that you no longer want the unit. Can you sell your agreement to someone else before the final closing?

The answer is: sometimes yes, sometimes no — and when yes, the process is legally and tax-wise far more complex than a standard resale. Assigning a pre-construction condo agreement in Ontario is a topic that catches buyers off guard in multiple ways. This article explains how assignment works, what it costs, and what the tax implications are.

What is an assignment?

An assignment is the transfer of your rights and obligations under the original agreement of purchase and sale to a new buyer (the "assignee") before the final closing with the builder. You, the original buyer, become the "assignor."

Critically, an assignment is not a sale of the unit itself — the unit does not yet exist as a separate piece of land. You are selling your contractual position: your right to take title when the condo closes, and your obligation to pay the builder the outstanding balance.

Step 1: Can you assign? Check your agreement

Most builder agreements include a clause addressing assignment. The clause may say one of three things:

1. Assignment is prohibited — you cannot transfer your agreement to anyone without the builder's written consent, which the builder may withhold entirely.
2. Assignment requires builder consent — the builder may permit assignment on terms, including payment of an assignment fee.
3. Assignment is restricted to certain circumstances — for example, assignment only to a family member, or only in certain hardship situations.

Very few builder agreements allow assignment freely without conditions. Do not assume you can assign without reading this clause carefully.

Builder assignment fees

If the builder permits assignment, they commonly charge a fee — sometimes a flat fee, sometimes a percentage of the purchase price. As of writing, builder assignment fees vary widely. The amount should be disclosed in the agreement or negotiated separately. These fees can range from a few thousand dollars to much more, and they are the builder's revenue, not your lawyer's fee.

Step 2: Finding an assignee

You can market the assignment yourself or through a real estate agent familiar with pre-construction assignments. Assignment sales are not listed on the MLS in the same way as resale properties — many are marketed privately or on dedicated assignment listing platforms.

The price for an assignment is typically the original purchase price plus any profit the assignor seeks (based on how much market prices have risen since purchase). In a flat or declining market, assignors sometimes accept less than the original price to exit.

Step 3: The legal process for assignment

The assignment transaction involves two separate legal agreements:

1. The assignment agreement between you (the assignor) and the new buyer (the assignee) — this transfers your interest and sets the price
2. The builder's consent — typically a three-party document signed by the builder, assignor, and assignee

Your lawyer prepares the assignment agreement. The builder's lawyer prepares or reviews the consent. The assignee's lawyer reviews everything from the assignee's perspective.

At final closing, it is usually the assignee who closes with the builder and takes title. In some cases — particularly where the assignment happens just before closing — the original agreement closes in the assignor's name and then a separate deed is transferred to the assignee on the same day (a "back-to-back" closing).

The HST problem on assignments

This is where many assignors are caught unprepared. The sale of an assignment for profit is generally subject to HST under Canada's federal tax rules. As of writing:

• If you are in the business of buying and selling pre-construction condos, or if the CRA treats your assignment profit as business income, HST at the combined federal-provincial rate may apply to the profit on the assignment.
• Even if you are an individual (not a builder or developer), the CRA has taken the position that HST applies to the assignment price (or the profit component, depending on the structure) in many situations.

You cannot simply ignore HST on an assignment. The CRA has been actively reviewing assignment transactions. If HST applies and you do not collect and remit it, you remain personally liable. The purchaser may also have unexpected HST obligations at the builder's final closing.

Get specific tax advice from a tax lawyer or accountant familiar with CRA's position on condo assignments before you set your asking price. The HST issue can significantly affect your net proceeds.

Income tax on assignment profit: capital gain or business income?

Beyond HST, the profit on the assignment sale is taxable income. The question is whether it is:

• Capital gain — 50% inclusion rate (as of writing — verify the current rate, as it has been a subject of federal budget changes)
• Business income — 100% inclusion rate

The CRA looks at factors like your original intent, how many similar transactions you have done, how short the holding period is, and whether you took steps during the period (like arranging financing for the assignment purchaser) suggesting you were in the business of trading. As of writing, verify the current inclusion rate and CRA's position with a tax advisor.

Frequently asked questions