Key takeaways. A merger combines two or more corporations into a single surviving entity, while an acquisition means one party purchases the shares or the assets of another business and takes control. In Ontario, a true merger is completed through a process called amalgamation under the Business Corporations Act, and most business purchases are structured as either a share purchase or an asset purchase. The structure you choose affects your taxes, your liability, and your closing timeline, so it should be settled before you sign a letter of intent.
What Is a Merger or Acquisition?
Merger and acquisition, usually shortened to M&A, is the umbrella term for transactions that combine businesses or transfer ownership of them. A merger joins two or more companies into one continuing company. An acquisition transfers control of a business from a seller to a buyer, either by selling the corporation’s shares or by selling the assets the business uses.
The distinction matters more in Ontario than most general articles suggest. Ontario corporate law does not actually use the word merger. The legal mechanism that combines two corporations into one is called amalgamation, and it is governed by sections 174 to 179 of the Business Corporations Act (Ontario). When business owners say merger in everyday conversation, they usually mean an acquisition where the two businesses will operate as one afterward.
In our practice, most transactions that clients first describe as mergers are legally structured as acquisitions, sometimes with an amalgamation completed after closing to fold the target corporation into the buyer. Getting that vocabulary straight at the first meeting saves confusion later, because the documents, the approvals, and the tax results are different for each route.
What Is the Difference Between a Merger and an Acquisition?
An amalgamation produces one corporation that automatically carries all the property, rights, contracts, and liabilities of every corporation that went into it. An acquisition leaves the buyer and seller as separate legal actors, with a purchase agreement defining exactly what changes hands. The table below sets out the practical differences the way we explain them to clients.
| Feature | Merger (Amalgamation) | Acquisition (Share or Asset Purchase) |
|---|---|---|
| Legal result | Two or more corporations continue as a single amalgamated corporation | The buyer takes ownership of shares or assets while both parties remain separate entities |
| What happens to liabilities | The amalgamated corporation automatically carries every liability of each predecessor | In a share deal the liabilities stay inside the purchased corporation, in an asset deal unlisted liabilities generally stay with the seller |
| Approval required | Special resolution of shareholders for a long form, directors’ resolutions for a short form | Board and shareholder approvals as required by the corporation’s articles, bylaws, and any shareholder agreement |
| Core documents | Amalgamation agreement and Articles of Amalgamation | Share purchase agreement or asset purchase agreement |
| Typical use in Ontario | Combining related corporations, corporate simplification, folding a target into a buyer after closing | Buying or selling a business between unrelated parties |
One point catches many owners out. A statutory amalgamation under the OBCA is only available between Ontario corporations. A federal corporation, or one incorporated in another province, must first be continued into Ontario before it can amalgamate under the OBCA, or the parties must choose a different structure. Whether continuance or another route makes more sense depends on the facts, which is exactly the kind of question to resolve before anything is signed.
What Are the Types of Mergers and Acquisitions?
Types of mergers
- Horizontal merger. Two businesses in the same industry and at the same stage combine, for example two competing HVAC companies joining forces to gain market share.
- Vertical merger. A business combines with a supplier or a customer in its own supply chain, such as a manufacturer amalgamating with its distributor.
- Market extension merger. Two businesses selling the same product in different markets combine to reach a wider customer base.
- Product extension merger. Businesses with related products serving the same market combine to broaden their offering.
- Conglomerate merger. Businesses in unrelated industries combine, usually for diversification or investment reasons.
Common acquisition structures
- Share purchase. The buyer purchases the shares of the corporation and takes over the company as a whole, including everything inside it.
- Asset purchase. The buyer purchases specific assets and contracts, such as equipment, inventory, goodwill, and the lease, and leaves the corporate shell with the seller.
- Management buyout. Existing managers or employees purchase the business from the owner, often as part of a succession plan.
- Majority or partial interest purchase. The buyer acquires a controlling stake rather than the entire company, which makes a well drafted shareholder agreement essential.
Hostile takeovers, where a buyer goes around the board directly to shareholders, are essentially a public company phenomenon. Private Ontario transactions are negotiated deals from start to finish. If you are weighing a purchase as part of an exit or succession strategy, our guide on business succession planning covers how these structures fit into a longer term plan.
How Does a Merger (Amalgamation) Work in Ontario?
Ontario offers two amalgamation procedures under the OBCA, and choosing the right one saves real time and cost.
Long form amalgamation
A long form amalgamation is used when the corporations are not all part of the same corporate family. Each amalgamating corporation enters into an amalgamation agreement that sets out the terms of the combination, including the name, share structure, and directors of the resulting corporation and how shares of each predecessor convert into shares of the new entity. The agreement must then be adopted by the shareholders of each corporation by special resolution, which requires at least two thirds of the votes cast. Shareholders who oppose the amalgamation may have dissent rights that entitle them to be paid fair value for their shares, which is a cost the plan needs to account for.
Short form amalgamation
A short form amalgamation is the streamlined route for related corporations. It applies where a holding corporation amalgamates with one or more of its wholly owned subsidiaries, or where two or more wholly owned subsidiaries of the same holding corporation amalgamate with each other. No amalgamation agreement and no shareholder meeting are required. The directors of each corporation approve the amalgamation by resolution, and the paperwork moves straight to filing. Most of the amalgamations we complete for clients are short form, typically as year end reorganizations or cleanup after an acquisition.
Filing the Articles of Amalgamation
The amalgamation takes legal effect when Articles of Amalgamation are filed and a certificate is issued. The filing must include a signed statement from a director or officer of each amalgamating corporation, required under subsection 178(2) of the OBCA, addressing solvency related matters. If the amalgamated corporation will use a new name rather than a number name or the name of one of the predecessors, an Ontario NUANS name search report is needed. The government filing fee is $330 as of the date of this article, and fees change from time to time, so confirm the current amount before filing. Once the certificate issues, the amalgamated corporation continues with all of the property and all of the liabilities of every predecessor by operation of law. Clients often time the effective date to the first day of a fiscal year to keep the accounting clean.
Which Method Fits? Share Purchase, Asset Purchase, or Amalgamation
Most Ontario business transfers come down to a choice between a share purchase and an asset purchase, with amalgamation serving as the tool for related party combinations and post closing integration. Here is how the three methods compare on the questions clients ask most.
| Question | Share Purchase | Asset Purchase | Amalgamation |
|---|---|---|---|
| What transfers | The corporation itself, with everything inside it | Only the assets and contracts listed in the agreement | Everything, because the corporations become one |
| Liability exposure for the buyer | The buyer inherits all liabilities, including unknown ones | The buyer selects assets and generally leaves unlisted liabilities behind | The combined corporation carries all liabilities of both predecessors |
| Seller’s usual tax position | Capital gains treatment, and the lifetime capital gains exemption may shelter part of the gain if strict conditions are met | Gain is taxed inside the corporation, and a second layer of tax can apply when funds are paid out to the owner | Usually structured on a tax deferred basis where the conditions are met |
| Who usually prefers it | Sellers | Buyers | Related corporations reorganizing |
Because buyers and sellers usually start on opposite sides of this question, the structure itself becomes a negotiating point that shows up in the price. We walk through the tradeoffs in detail in our comparison of a share sale versus an asset sale, and our guide to buying a business in Ontario looks at the process from the purchaser’s side.
What Does the M&A Process Look Like Step by Step?
This is the sequence we follow at our firm for a typical private company transaction, with realistic timeframes for a small or medium sized Ontario deal.
- Structure and strategy before anything is signed. We settle the shares versus assets question with you and your accountant first, because changing structure after the letter of intent means renegotiating price.
- Confidentiality agreement. Before financial statements or customer information change hands, the parties sign a confidentiality agreement. Our article on non disclosure agreements in Ontario explains what these should cover.
- Letter of intent, usually one to two weeks of negotiation. The letter of intent records price, structure, and key terms. Most of it does not bind the parties, but exclusivity and confidentiality clauses usually do, so it deserves legal review before signing, not after.
- Due diligence, commonly three to six weeks. The buyer’s team reviews the minute book, financial statements, material contracts, employees, leases, litigation, tax accounts, and personal property security registrations. Problems found here get fixed, priced in, or become conditions of closing.
- Definitive agreement, usually two to four weeks of drafting and negotiation. The share purchase agreement or asset purchase agreement sets out representations, warranties, indemnities, restrictive covenants, and employee arrangements. This document, not the letter of intent, is what protects you.
- Conditions and consents. Many deals need consents from a landlord, a lender, a franchisor, or key customers before closing can happen. Chasing these takes longer than most clients expect, so we start early.
- Closing. Funds flow, share transfers or conveyance documents are delivered, directors and officers resign and are replaced as needed, and the corporate records are updated the same day.
- After closing. Registrations, payroll and HST account changes, notices to customers and suppliers, and integration steps follow. Where the buyer wants the target folded in, an amalgamation is often completed at the next fiscal year end.
From signed letter of intent to closing, a typical private Ontario transaction takes two to four months. A straightforward short form amalgamation of related corporations, with organized records, is often completed within a few weeks.
Which Government Approvals Can Apply?
Most small and medium sized Ontario transactions close with no competition filing at all. Under the federal Competition Act, advance notification to the Competition Bureau is generally required only where the target’s assets in Canada, or its revenues from sales in, from, or into Canada, exceed $93 million and the parties together with their affiliates exceed $400 million in combined Canadian assets or revenues. Those thresholds are current for 2026 and are reviewed annually, so confirm them for your deal year. The Competition Bureau’s announcement sets out the current figures. Keep in mind that the Bureau can review a merger of any size for its effect on competition even where no filing is required.
Where the buyer is not Canadian, the Investment Canada Act can require a notification or, for very large transactions, a pre closing review, and national security review powers apply regardless of deal size. Regulated businesses add their own layer, since licences in areas such as alcohol sales, transportation, health, and professional services often need consents or fresh applications when ownership changes.
What Are the Tax Considerations in a Merger or Acquisition?
Tax drives structure in most private deals. A seller of shares may be able to claim the lifetime capital gains exemption on qualifying small business corporation shares, which can shelter a significant portion of the gain, but only where strict conditions about the corporation’s assets and the holding period are met well before the sale. An asset sale is taxed inside the corporation, and a second layer of personal tax can apply when the proceeds are paid out to the owner, which is the main reason sellers push for share deals.
Reorganizations before or after a transaction frequently use a rollover under section 85 of the Income Tax Act to move assets on a tax deferred basis, and amalgamations between related corporations are usually structured so that no immediate tax arises where the conditions are met. Every one of these outcomes is fact dependent. Involve your accountant and your lawyer together before the letter of intent fixes the price and structure, because that is the point where most of the tax planning room disappears.
What Mistakes Do We See Most Often?
These are the recurring problems we see in Ontario transactions, along with what each one tends to cost.
- Signing the letter of intent without legal review. Exclusivity clauses can lock a seller out of the market for months, and a price recorded in the letter is very hard to move later, even though the document says it is not binding.
- Rushing or skipping due diligence in a share deal. The buyer inherits every liability inside the corporation, known or not. Undisclosed tax arrears or employee claims discovered after closing turn into indemnity fights that cost far more than the diligence would have.
- A messy minute book. Missing share issuances and unsigned resolutions stall closings while the record is rebuilt, and buyers use the mess to negotiate the price down. Keeping the corporate minute book current is cheap insurance.
- Weak or missing restrictive covenants. Without properly drafted non competition and non solicitation covenants, a seller can open a competing shop nearby and call the old customers. Courts only enforce covenants that are reasonable in scope, time, and geography, so boilerplate often fails when it matters.
- Ignoring the other shareholders. Where the target has more than one shareholder, a shareholder agreement may contain rights of first refusal, drag along, or tag along provisions that dictate how the sale must proceed. Discovering these midway through a deal derails timelines.
- Leaving tax planning until after the letter of intent. Purification steps for the capital gains exemption and section 85 rollovers need lead time. Started too late, they either delay closing or get abandoned, and the seller pays tax that planning could have deferred or avoided.
How Much Does a Merger or Acquisition Cost in Ontario?
Legal fees depend on the structure, the state of the records, and how hard the other side negotiates, so treat these figures as orientation rather than a quote. For a straightforward purchase or sale of a small private Ontario business, legal fees commonly fall between $7,500 and $25,000, with asset deals often at the higher end because more documents are needed to move each category of asset. Larger or more complex transactions cost more. A short form amalgamation of related corporations with clean records is typically in the range of $2,000 to $5,000 in legal fees, plus the $330 government filing fee.
Beyond legal fees, budget for accounting and tax advice, a NUANS report where a new name is adopted, search and registration disbursements, and any consent fees a landlord or franchisor charges. At Insight Law we quote transparent fixed fees where the scope allows, and we tell you at the outset which parts of a transaction cannot responsibly be fixed in advance.
Frequently Asked Questions
Do I need a lawyer for a merger or acquisition in Ontario?
There is no law forcing you to hire one, but these transactions are built out of legal documents, and the protections live in the details. A buyer without counsel can inherit liabilities they never priced, and a seller without counsel can sign warranties and covenants they cannot safely give. The legal fee on a business purchase is usually a small fraction of the price, and it is the part of the budget that protects the rest of it.
How long does a merger or acquisition take?
A typical private Ontario deal runs two to four months from signed letter of intent to closing. Due diligence and third party consents are the usual sources of delay, especially landlord and lender consents. A short form amalgamation of related corporations can often be completed within a few weeks when the corporate records are in order.
What happens to employees in a merger or acquisition?
In a share purchase, the employer does not change, so employment simply continues on existing terms. In an asset purchase, the buyer chooses which employees to offer new employment, and Ontario employment standards legislation generally treats a hired employee’s service as continuous with the seller for statutory entitlements. Employees not hired by the buyer remain the seller’s responsibility, including termination obligations, which is a cost the deal needs to allocate clearly.
Can an Ontario corporation amalgamate with a federal or out of province corporation?
Not directly. An OBCA amalgamation requires all amalgamating corporations to be Ontario corporations. The usual solution is to continue the federal or extraprovincial corporation into Ontario first, then amalgamate, or to continue the Ontario corporation into the other jurisdiction and amalgamate there. Which direction makes sense depends on tax, liability, and business considerations specific to your situation.
Do I need Competition Bureau approval to buy a small business?
Almost never. Mandatory advance notification only applies to transactions above the financial thresholds, which for 2026 require the target to exceed $93 million in Canadian assets or revenues and the combined parties to exceed $400 million. The overwhelming majority of small and medium sized Ontario purchases fall far below those numbers and close with no filing. The Bureau retains the power to review any merger, but reviews of small local transactions are rare in practice.
Should I buy shares or assets?
It depends on your position and your risk tolerance. Buyers generally start from a preference for assets, because they can choose what they take and leave unknown liabilities behind. Sellers generally start from a preference for shares, because the tax result is usually better for them, including possible access to the lifetime capital gains exemption. The final answer is negotiated, and the tax difference between the two routes is often bridged through the price.
The information provided above is of a general nature and should not be considered legal advice. Every transaction or circumstance is unique, and obtaining specific legal advice is necessary to address your particular requirements. Therefore, if you have any legal questions, it is recommended that you consult with a lawyer.
