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Asset Purchase Agreement in Ontario: What It Must Include

Learn what an asset purchase agreement covers in Ontario: assets, excluded liabilities, price allocation, tax elections, employees and closing terms.

Buying & Selling a Business5 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • An asset purchase agreement should list exactly which assets move to the buyer and which debts and liabilities stay with the seller.
  • The price should be allocated across the assets in a reasonable way, because the buyer and seller both report it to the CRA.
  • Buyers should check for liens, WSIB amounts and GST/HST treatment before closing.

When you buy or sell a business by assets, you are not buying a company as a whole. You are buying a defined list of things: equipment, inventory, contracts, a name, perhaps a lease. The asset purchase agreement is the document that says exactly what moves and what does not.

No single Ontario form decides what the agreement must say. What it should include comes from the deal, plus several tax, employment and registry rules that affect how a buyer and seller protect themselves. This article walks through the main parts so you know what to ask about.

Asset deal or share deal?

In a share sale, the buyer takes over the corporation, and the corporation keeps its history, including its debts. In an asset sale, the buyer picks the assets it wants and leaves the rest. That choice changes several rules.

For example, buying shares is generally not subject to GST/HST, and a change in share ownership does not affect the tax values of the corporation's assets. The WSIB's purchase-certificate policy does not apply to buyers who acquire a business through a share purchase, merger or amalgamation, because these buyers take on the seller's liabilities by law. Which structure fits depends on the facts, and it is worth settling with a lawyer and accountant before the agreement is drafted.

Listing the assets and the excluded liabilities

The heart of the agreement is two lists. The first describes the purchased assets as precisely as possible. The second describes the excluded liabilities, meaning the debts and obligations the seller keeps.

Some liabilities may follow the business even if the contract says otherwise. When an employer sells or otherwise disposes of all or part of its business, the buyer is liable for amounts the seller owed under the Workplace Safety and Insurance Act immediately before the sale.

Checking for liens and WSIB amounts

Before buying used business assets, a buyer can search Ontario's Personal Property Security Registration system through ServiceOntario's Access Now to see whether a lien is registered. Searches can be run against an individual debtor, a business debtor or a motor vehicle.

A WSIB purchase certificate relieves the buyer of the seller's WSIB liability up to the date of sale. The seller's account must be in good standing, the certificate is valid for 30 days from issue so the sale must close within that window, and the seller must notify the WSIB within 10 days of the sale.

Price allocation and tax elections

The agreement should divide the price among the assets. The CRA says a buyer can use the individual asset prices in the agreement to calculate capital cost allowance if they are reasonable. Otherwise the buyer must reasonably allocate the price at fair market value, and the balance goes to goodwill. The buyer's allocation should match the amounts the seller used when reporting the sale.

If part of the payment is for a non-compete, the Income Tax Act treats each part of the amount as paid for the item it reasonably relates to.

ElectionWhat it doesLimit
GST/HST election (Form GST44)No GST/HST is payable on the supply of the business property if the buyer acquires all or substantially all of what is needed to carry on the business.Not available if only individual assets are sold, or if the seller is a registrant and the buyer is not.

Even with the GST/HST election, tax still applies to taxable services the seller is to provide, taxable supplies by lease or licence, and, where the buyer is not a registrant, taxable sales of real property.

Employees, privacy and closing terms

If the buyer hires the seller's employees, their employment is deemed not to have been terminated for Employment Standards Act purposes, and time worked for the seller counts as time worked for the buyer. That continuity does not apply if the buyer hires the employee more than 13 weeks after the earlier of the employee's last day with the seller and the day of the sale.

Customer and employee information is also part of the deal. During a prospective transaction, the parties may share personal information without consent if they have an agreement limiting its use to purposes related to the transaction, protect it with suitable safeguards, and return or destroy it if the deal does not proceed. This exception does not apply where the main purpose of the deal is buying or selling personal information itself.

Closing terms usually cover the closing date, what each side delivers, adjustments for prepaid items, and conditions that must be met first. A seller with employees must also close its payroll account, and must contact its tax services office to close a GST/HST account.

What to do next

Large transactions may need advance notice to the Competition Bureau. For 2026 the transaction-size threshold stays at $93 million, and a notice is generally required when the parties' combined assets or revenues also exceed $400 million. Foreign buyers face separate Investment Canada Act review thresholds. These figures change each year, so confirm them before relying on them.

Frequently asked questions

Does Ontario require a specific form for an asset purchase agreement?

This is not a fill-in-the-blank form. The contents are negotiated, and a lawyer usually drafts it around your deal. The tax, WSIB and employment rules in this article still affect what the agreement should say.

Does the buyer take over the seller's debts in an asset sale?

Generally only those the agreement says it takes, but some obligations follow the business by law. For example, the buyer is liable for the seller's WSIB amounts owing immediately before the sale.

Is GST/HST payable when I buy a business?

It depends. If the buyer acquires all or substantially all of the property needed to carry on the business, the parties may jointly elect so that no GST/HST is payable on that supply. The CRA treats this as at least 90% of the property needed.

Do employees keep their service if the business is sold?

If the buyer employs one of the seller's employees after a sale of the business, their employment is deemed not to have been terminated and time with the seller counts. Share sales and late hires work differently.

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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