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You signed a pre-construction purchase agreement years ago. Closing is approaching, your circumstances have changed, and now you are wondering whether you can transfer that contract to someone else before you ever take title.
Sometimes the answer is yes, through an assignment sale. But assignment sales are among the most legally and tax-complex transactions in residential real estate.
This guide explains what an assignment sale is, how it differs from a normal resale, and why developer consent and tax analysis are essential before anyone signs.
What Is an Assignment Sale?
An assignment sale happens when the original purchaser of a pre-construction property transfers their rights and obligations under the original Agreement of Purchase and Sale to a new buyer before the original deal closes with the developer.
The original buyer is often called the assignor. The new buyer is the assignee.
The assignee effectively steps into the assignor’s position and completes the purchase with the developer on the original closing terms.
How Assignment Sales Differ from Resale Transactions
An assignment sale is not a typical resale.
In an assignment:
- The contract is being sold, not title to the property
- The developer remains central to the transaction
- The original agreement still governs the closing
- HST and tax treatment can be much more complex
That is why assignment sales often require more careful contract review than a straightforward resale deal.
The Developer Consent Requirement
The threshold issue in almost every assignment sale is whether the original purchase agreement permits assignment at all.
Some developer agreements:
- Prohibit assignment entirely
- Allow assignment only with written consent
- Allow assignment only subject to timing rules, fees, and approval conditions
- Require profit-sharing or administrative fees
Never assume an assignment is permitted just because someone says it is common practice. The original agreement controls.
Common Developer Restrictions on Assignments
Developers may also impose restrictions such as:
- No public MLS marketing
- Timing limits on when assignment can happen
- Approval of the assignee’s financial status
- Assignment fees
- Developer sharing in assignment profit
These restrictions can significantly affect whether the deal is feasible and what the assignment is worth.
The Role of the Original Purchase Agreement
The assignee takes the original contract as-is.
That means the assignee inherits:
- The original purchase price structure
- The original closing date
- Upgrade obligations
- Development levies and adjustments
- Interim occupancy terms where applicable
- Other contractual risks in the original APS
This is why the assignee’s lawyer must review the full original agreement, not just a summary or salesperson’s explanation.
How Assignment Pricing Works
Assignment pricing generally has two major components:
- Reimbursement of deposits the assignor already paid
- Additional profit or premium paid to the assignor
The assignee then still pays the remaining balance of the original purchase price to the developer at final closing.
That means the assignee’s total cost may be split between the assignor and the developer, even though the overall price reflects current market value.
HST on Assignment Sales: The Tax Obligation Most Assignors Miss
HST is one of the most dangerous areas of assignment sales because many parties assume it has already been fully addressed when it has not.
Depending on the structure of the assignment and the applicable rules, HST may apply in ways that materially affect:
- The assignment price
- The assignor’s net profit
- The assignee’s total cost
- The availability of rebates
No assignment sale should proceed without proper HST analysis.
Income Tax: Capital Gain or Business Income?
In addition to HST, the assignor’s profit may raise income tax issues.
Depending on the facts, the profit may be characterized as:
- A capital gain, or
- Business income
The CRA looks at the surrounding facts, including intent, timing, repetition, and the nature of the transaction. In many cases, short-hold or investor-style transactions are especially vulnerable to business-income treatment.
The Assignee’s Perspective: What the Buyer of an Assignment Is Actually Purchasing
The assignee is not buying a completed resale home. The assignee is buying into an existing contract with the developer.
That creates risks such as:
- Developer delays
- Unknown or underestimated closing adjustments
- Construction quality uncertainty
- Limited ability to renegotiate terms
- Exposure to the original agreement’s fine print
The assignee should understand the developer’s contract before paying anything significant toward the assignment.
Legal Risks for the Assignor After the Assignment
One of the biggest surprises for assignors is that assignment does not always end their exposure.
If the developer does not release the assignor fully, the assignor may still face residual liability if the assignee fails to close later.
That means the assignor’s lawyer should not focus only on selling the assignment profitably, but also on obtaining the strongest possible release from ongoing obligations.
How to Protect Yourself as an Assignor
Assignors should generally:
- Review the assignment clause in the original purchase agreement
- Obtain written developer consent
- Get HST and income tax advice before pricing the deal
- Have the assignment documents reviewed by a real estate lawyer
- Seek a full release from the original contract where possible
- Keep records of deposits, upgrades, and other amounts already paid
How to Protect Yourself as an Assignee
Assignees should generally:
- Obtain and review the full original purchase agreement
- Calculate the full closing picture, not just the assignment price
- Confirm the developer has consented in writing
- Understand any HST and rebate implications
- Clarify Tarion or similar deposit protection issues where applicable
Working with a Real Estate Lawyer on an Assignment
Assignment sales typically involve overlapping agreements, tax questions, and developer-side conditions that make legal review essential.
For broader tax background, the Canada Revenue Agency provides public information about real estate transaction tax obligations.
If you are also thinking about the legal risks of rapid real estate resale, our house flipping guide may also help.
Final Takeaway
Assignment sales can create flexibility, but they are not simple.
They sit at the intersection of developer contract law, tax law, and closing risk. Before you market, buy, or sign an assignment, make sure the original agreement, developer consent, tax treatment, and release issues have all been reviewed properly.
FAQ
Questions first-time buyers ask before closing
These are some of the most common questions buyers and sellers ask when dealing with assignment sales.
What is an assignment sale?
An assignment sale is a transfer of the original purchaser's rights and obligations under a pre-construction Agreement of Purchase and Sale to a new buyer before the original transaction closes with the developer.
Do all developers allow assignment sales?
No. Some prohibit assignments entirely, while others allow them only with written consent, fees, conditions, or timing restrictions.
Is HST a major issue in assignment sales?
Yes. HST treatment in assignment sales can be complex and can significantly affect pricing, profit, and closing obligations.
Does the assignor remain at risk after the assignment?
Potentially yes. Without a proper release, an assignor may still face liability if the assignee later fails to close.
What is the assignee actually buying?
The assignee is buying the contractual rights under the original purchase agreement, not a completed resale property with newly negotiated terms.
Legal Disclaimer
This blog is for informational purposes only and does not constitute formal legal advice or establish a solicitor-client relationship. Reading this post does not replace obtaining advice from a licensed lawyer about your specific matter.