- A double closing is two separate, back-to-back purchase transactions on the same property, in which you buy it and then resell it to your own buyer, often on the same day.
- Flippers use double closings for a few reasons: to complete a fast resale without waiting through a full holding period, to keep the two transactions administratively separate, or simply because an assignment isn’t available — the original agreement may not permit assignment, or the seller may not agree to one.
- Land transfer tax applies to each conveyance: Ontario’s land transfer tax applies to essentially every conveyance of land tendered for registration, calculated on the value of the consideration for that specific transaction.
If you’re flipping a property in Ontario, you’ve probably heard about structuring the deal as a same-day double closing — buying the property in the morning and reselling it to your own buyer that afternoon, using the same funds to bridge both transactions. It sounds efficient. It’s also one of the more legally sensitive structures in Ontario real estate, and it deserves more care than a quick call to your lawyer the week of closing.
A double closing isn’t illegal on its own. But it compresses two separate legal transactions into one tight window, and each of those transactions carries its own tax, financing, and disclosure obligations that don’t disappear just because they happen hours apart.
Here’s what a double closing actually involves, and where flippers run into trouble.
What a Double Closing Actually Is
A double closing is two separate, back-to-back purchase transactions on the same property:
- You (the flipper) close on your purchase from the original seller, taking title in your own name.
- Later the same day — or very shortly after — you close a second sale, transferring that same property to your own buyer.
This is different from an assignment sale, where you never take title at all. In an assignment, you transfer your rights and obligations under the original Agreement of Purchase and Sale to a new buyer before the original closing happens, and the property transfers directly from the original seller to the assignee. In a double closing, title genuinely passes to you first, then to your buyer, as two distinct conveyances.
Why the Structure Gets Used
Flippers use double closings for a few reasons: to complete a fast resale without waiting through a full holding period, to keep the two transactions administratively separate, or simply because an assignment isn’t available — the original agreement may not permit assignment, or the seller may not agree to one. None of that is improper on its own, but the compressed timeline, and the fact that one person is a party to both deals, is exactly what creates the risks below.
Where the Legal Risk Sits
Land transfer tax applies to each conveyance
Ontario’s land transfer tax applies to essentially every conveyance of land tendered for registration, calculated on the value of the consideration for that specific transaction. A double closing is two registered conveyances, so — as a general rule — land transfer tax is triggered twice: once when you take title, and again when your buyer does. Don’t assume you can register only one transfer or treat the two legs as a single taxable event; confirm the treatment with your lawyer before you rely on any cost projection.
Lender and appraisal scrutiny
Lenders financing either leg of a double closing may ask more questions than usual — about the timeline, the price movement between the two transactions, and the source of funds bridging the gap. This isn’t automatically a problem, but it can slow down or complicate financing if it isn’t disclosed and explained upfront. Trying to keep one lender in the dark about the other transaction is where a legitimate structure turns into a misrepresentation problem.
Conflict of interest for lawyers
Being the buyer in the first transaction and the seller in the second does not by itself stop one lawyer from acting for you on both legs: you are the same client throughout, and that is not in itself a conflict of interest. What the Law Society’s rules restrict is one lawyer acting for both the seller and the buyer in the same transfer, which is allowed only in narrow cases, such as when the two are related persons. And if your lawyer also acts for your lender, they must disclose a same-day resale at a significantly higher price to that lender, even if the lender does not ask. Make sure the other party in each leg has its own lawyer, and that every lender knows about both closings.
HST exposure on the resale
If the property was substantially renovated, or the circumstances suggest it wasn’t purchased and resold as an ordinary used home, the resale leg can raise HST/GST questions that don’t apply to a typical resale. This is a fact-specific tax question that depends on what was done to the property and your intentions — get tax advice before assuming the sale is automatically HST-exempt just because it’s technically a "resale."
Double Closing vs. Assignment Sale
| Double closing | Assignment sale | |
|---|---|---|
| Who takes title from the original seller | You do, then your buyer does | Your buyer does, directly |
| Number of registered conveyances | Two | One |
| Requires original seller’s or builder’s consent | No — you already own it | Often, yes |
| Typical use | Resale flips | Pre-construction condo or home contracts |
Before You Try One: A Practical Checklist
- Confirm your financing genuinely supports two closings on the same day, including any bridge funds
- Make sure the other party in each leg has its own lawyer, and that every lender knows about both closings
- Get tax advice on whether the resale could attract HST
- Build in a buffer — a same-day double closing leaves no room for a delayed discharge, wire, or registration issue
- Make sure both Agreements of Purchase and Sale are accurate and don’t misstate the parties, price, or timeline to either lender
Frequently asked questions
Is a double closing legal in Ontario?
Yes — there’s nothing inherently illegal about closing two separate, accurately documented transactions on the same day. Problems arise when the structure is used to hide information from a lender, misstate the price, or misrepresent the transaction to either party’s financing.
Do I pay land transfer tax on both transactions?
Not on both. Land transfer tax is paid by the buyer in each transfer, so you pay it on your purchase and your buyer pays it on the resale: the structure triggers it twice where an assignment triggers it once. Confirm the specific calculation with your lawyer, since it’s based on the value of the consideration in each transaction.
Can I use one lawyer for both closings to save money?
Generally, yes. Because you are the same client on both legs, using one lawyer across both is not in itself a conflict of interest. That lawyer generally cannot also act for the other party in either leg, and if they also act for your lender, they must disclose the resale to that lender.
What’s the real difference between this and an assignment sale?
In a double closing, you take title to the property yourself before reselling it — two conveyances. In an assignment, you transfer your contract rights to a new buyer before the original closing, so title passes directly from the original seller to that buyer — one conveyance, usually requiring the original seller’s or builder’s consent.
Official resources
- Ontario — Land Transfer Tax
- Ontario — Overview of land registry
- MPAC — AboutMyProperty
- Condo Authority of Ontario
Government and regulator sources for this topic. Rules change — confirm the current position before you rely on it.
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