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Land Transfer Tax When You Assign a Pre-Construction Purchase

Learn how Ontario land transfer tax applies when a pre-construction agreement is assigned, how the taxable value is set, and who generally pays it.

Real Estate4 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • On an assignment of a new-home agreement, the taxable value includes the assignment consideration, the original purchase price and any extras or upgrades.
  • HST is excluded from the value of consideration, with rules where new housing rebates are assigned to the builder.
  • The tax is payable by the person who acquires the land, when the transfer is registered.
  • Who bears the cost in your deal depends on your contract, so confirm it with a lawyer.

Maybe you bought a pre-construction home and now want to sell your place in the contract before closing. Or maybe you are the person taking over that contract. Either way, you are probably asking who pays land transfer tax and what amount it is calculated on.

This article explains in general terms how Ontario land transfer tax treats an assignment of a new-home agreement of purchase and sale. Income tax, HST and builder consent are separate questions that a lawyer or accountant should review.

Who pays the tax

The tax is payable by the person who acquires land or a beneficial interest in land, and it is payable when the transfer is registered. On an assignment, the assignee is the one who ends up taking title from the builder at closing, so the tax generally falls on the assignee in practice.

That said, the parties can agree on who bears the cost between them, and the assignment agreement should say so clearly. Do not assume. Ask a lawyer to confirm how the cost is allocated in your deal.

How the taxable value is worked out

When a buyer assigns a new-home agreement to a third party, the taxable value includes the assignment consideration, the original purchase price, and any extras or upgrades. In other words, the tax is not just on the original price, and it is not just on what the assignee pays the assignor.

Two things are left out. HST is excluded from the value of consideration, with rules where new housing rebates are assigned to the builder. Chattels such as appliances and furniture are also excluded and reported separately.

Assignor and assignee compared

QuestionWhat to know
Who acquires title at closing?The assignee, which is why the tax generally falls on that person
What is taxed?Assignment consideration plus original price plus extras and upgrades
Is HST in the value?No, it is excluded
Are appliances and furniture in the value?No, they are excluded and reported separately

For the assignor, the rules for income tax and HST on the profit from an assignment are separate from land transfer tax. They are not covered here, so speak with an accountant.

Timing, registration and refunds

The legal definition of convey includes agreeing to sell land, so an agreement of purchase and sale or a related notice is taxable when tendered for registration. If the affidavit states that tax was already paid on the agreement or notice, no further tax is due when the later conveyance is registered. Whether any of this applies to your assignment depends on how it is documented and registered.

If the assignee is an eligible first-time buyer, the refund of up to $4,000 may be available. The assignee must meet the age, residency, ownership and spousal conditions, and must occupy the home as a principal residence within nine months of the transfer date. For pre-construction, since December 13, 2007 all eligible homes, new or resale, qualify.

If a return is required for an unregistered disposition and is not filed within 30 days, the result may be an assessment of tax, penalty and interest. Your lawyer can tell you whether that situation arises.

What to do next

Assignments involve several moving parts, so involve a lawyer before you sign, not after closing.

Frequently asked questions

Is land transfer tax calculated only on the assignment fee?

No. The taxable value includes the assignment consideration, the original purchase price and any extras or upgrades. Other costs passed to the buyer can be included as well.

Is HST included in the taxable value?

HST is excluded from the value of consideration, with rules where new housing rebates are assigned to the builder. Ask your lawyer how that works in your deal.

Can an assignee claim the first-time buyer refund?

Possibly. An eligible first-time buyer can qualify for a refund of up to $4,000, and pre-construction homes qualify. The assignee must meet all the conditions, including moving in within nine months of the transfer date.

Does the assignor pay any land transfer tax?

The tax is payable by the person who acquires the land when the transfer is registered. The parties can agree on who bears the cost, so check your assignment agreement and confirm with a lawyer.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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