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What an amalgamation is
An amalgamation joins two or more corporations into one. Section 174 of Ontario’s Business Corporations Act (OBCA) says that two or more corporations, including holding and subsidiary corporations, may amalgamate and continue as one corporation. Nothing is sold and nothing is wound up. When the articles of amalgamation take effect, section 179 says the amalgamating corporations stop existing as separate entities, and the amalgamated corporation owns all their property and rights and is subject to all their liabilities, contracts and debts.
Amalgamation can come up in situations such as tidying up a group (a holding company that owns an operating company, or sister companies that no longer need to be separate), the last step after a buyer’s company acquires all the shares of another, or two businesses with different owners combining. The OBCA sets two routes, a long form and a short form, and which one applies depends on who owns the shares. This page supports our main corporate law page.
The long-form amalgamation, step by step
- Agree the terms. Under section 175(1), each amalgamating corporation enters into an amalgamation agreement covering what the new articles will say, what each shareholder will receive (shares, money or other securities), how fractions are paid, which by-laws will apply, and how the amalgamated corporation will be managed.
- Cancel cross-holdings. If one amalgamating corporation holds shares of another, section 175(2) requires those shares to be cancelled without any repayment of capital.
- Call the shareholder meetings. Section 176(1) requires each board to submit the agreement to its shareholders. The notice must include a copy or summary of the agreement and a statement that a dissenting shareholder can be paid the fair value of their shares under section 185 (section 176(2)).
- Vote. The agreement is adopted when the shareholders of each corporation approve it by special resolution (section 176(4)): two thirds of the votes cast at a meeting, or the written consent of every voting shareholder. Some classes vote separately under section 176(3).
- Notify creditors. A director or officer of each corporation must sign a statement that there are reasonable grounds to believe the corporations are solvent and that no creditor will be prejudiced, or that adequate notice has been given to known creditors (section 178(2)).
- File the articles. Articles of amalgamation, with the statements, go to the Director through the Ontario Business Registry (section 178(1)), who endorses a certificate of amalgamation (section 178(4)).
- Update everything else. The new corporation takes over bank accounts, contracts, licences, registrations and the minute book of the old ones.
| Point | Long form | Short form: holding company with subsidiaries | Short form: sister subsidiaries |
|---|---|---|---|
| When it is available | Any Ontario corporations | A holding corporation and subsidiaries all of whose shares are held by the other amalgamating corporations | Two or more wholly owned subsidiaries of the same holding body corporate |
| Approval | Special resolution of each corporation’s shareholders (s. 176(4)) | Directors’ resolution of each corporation (s. 177(1)) | Directors’ resolution of each corporation (s. 177(2)) |
| Amalgamation agreement | Required (s. 175) | Not required | Not required |
| Articles and by-laws | As set in the agreement | Same as the holding corporation’s (articles: except as prescribed) | Same as the surviving subsidiary’s (articles: except as prescribed) |
| Shares | Converted as the agreement says | Subsidiary shares cancelled; no securities issued and no assets distributed | All but one subsidiary’s shares cancelled; their stated capital added to the survivor’s |
| Dissent rights | Yes (s. 185(1)(c)) | No; s. 185(1)(c) applies to amalgamations under ss. 175 and 176 | No, for the same reason |
| Director’s statement on solvency and creditors | Required (s. 178(2)) | Required | Required |
| Ontario Business Registry fee | $330 | $330 | $330 |
What changes the answer
Who owns the shares
The short form fits a group where the same owner sits on every side. Section 177(1) lets a holding corporation amalgamate with subsidiaries without an agreement or a shareholder vote if each board approves by resolution, all the subsidiaries’ shares are held by the other amalgamating corporations, the subsidiaries’ shares are cancelled, the by-laws and articles follow the holding corporation’s, and no securities are issued or assets distributed. Section 177(2) does the same for sister subsidiaries of one holding body corporate. If even one share of a subsidiary is held by an outsider, such as a family member or an employee, the short form is not available and the long form applies.
Creditors
Every amalgamation, long or short, needs the statement in section 178(2). Section 178(3) explains what counts as adequate notice: a written notice to each known creditor with a claim over $2,500, a notice published once in a newspaper published or distributed where the corporation has its registered office, and in each notice a statement that the corporation intends to amalgamate unless a creditor objects within 30 days. A creditor who objects on grounds the corporation treats as frivolous or vexatious must be told so, and has the status of a complainant under section 248, which can lead to the court.
A minority shareholder disagrees
In a long-form amalgamation, section 185(1)(c) gives a shareholder entitled to vote the right to dissent and be paid the fair value of their shares. That right can change the economics of a deal with a reluctant minority, so it should be mapped before the meeting is called. If a unanimous shareholder agreement or a shareholders’ agreement sets its own approval rules, those need to be met as well.
Federal or out-of-province corporations
The OBCA amalgamation provisions are for corporations governed by the OBCA. A federal corporation amalgamates under the Canada Business Corporations Act, and a corporation from another jurisdiction that wants to amalgamate with an Ontario corporation can first apply under section 180 to be continued into Ontario, where its home jurisdiction allows it. We compare the two systems in Ontario or federal incorporation.
Tax
Section 87 of the federal Income Tax Act sets out how qualifying amalgamations of taxable Canadian corporations are treated for tax. Whether an amalgamation qualifies, and what happens to losses, tax accounts and year-ends, is a question for your accountant before the documents are signed. The corporate law steps and the tax steps have to match.
Filings after the certificate
The certificate is not the last filing. Sections 2(1) and 2(2) of the Corporations Information Act require an initial return within 60 days after the date of amalgamation, setting out the prescribed information about the new corporation, and section 4(1) requires a notice of change within 15 days after any later change in that information. Inside the company, the amalgamated corporation needs its own minute book and registers, including, unless it is an offering corporation or otherwise exempt under section 140.2(8), the register of individuals with significant control under section 140.2 of the OBCA, which we explain in the significant control register.
Records in poor shape
The amalgamated corporation inherits every gap in its predecessors’ minute books. If one company has missing resolutions or registers, fix them first; our page on fixing missing corporate records explains how.
Example
For example, imagine Helen owns all the shares of a holding company, which owns all the shares of two operating companies that run a café in Richmond Hill and a catering business in Vaughan. She wants one company to run both.
Because the holding company owns every share of both operating companies, the two subsidiaries can amalgamate under section 177(2) as sister subsidiaries of one holding body corporate. Each board passes a resolution: the catering company’s shares are cancelled, the café company’s articles and by-laws carry forward, and the catering company’s stated capital is added to the café company’s. A director of each signs the solvency and creditor statement after notice goes to each known creditor with a claim over $2,500 and is published once in a newspaper published or distributed where the company’s registered office is, with 30 days to object. The articles of amalgamation are filed online with the $330 fee. The amalgamated company then updates its bank accounts, leases, licences and the significant control register. Helen’s accountant confirms the tax treatment first. This example is hypothetical and is not legal advice.
Common mistakes in amalgamations
- Using the short form when an outsider holds a share. Sections 177(1) and (2) need full ownership within the group.
- Signing the creditor statement without giving notice. The statement must rest on reasonable grounds, and section 178(3) says what adequate notice looks like.
- Forgetting dissent rights. In a long form, the notice of meeting must mention them.
- Leaving contracts and licences in the old names. The new corporation takes them over by law, but counterparties, banks and regulators should still be told.
- Doing the tax planning afterwards. The tax result depends on how the amalgamation is structured.
- Merging messy minute books. Gaps in one company’s records become gaps in the new one.
What to do this week
- Draw the group: who owns every share of every company involved.
- Check each company’s Ontario Business Registry profile and minute book.
- List every creditor with a claim over $2,500, with addresses.
- Ask your accountant whether the amalgamation can qualify under section 87 of the Income Tax Act.
- List the bank accounts, leases, licences, permits and major contracts that will need updating.
- Bring the list to a first consultation, along with the items in our corporate consultation checklist. A first consultation takes 30 minutes, by video or in person, and you can request one here.
Frequently asked questions
Is an amalgamation the same as a merger?
In everyday speech, yes. Under the OBCA, the corporations amalgamate and continue as one, and section 179 gives the amalgamated corporation all their property, rights and liabilities.
Does the amalgamated company keep the old name?
In a long form, the amalgamation agreement sets out what the new articles will contain (section 175(1)(a)), including the name. In a short form, the articles, and so the name, are the same as those of the holding corporation or the surviving subsidiary, except as prescribed.
Do lawsuits and contracts carry over?
Yes. Section 179 makes the amalgamated corporation subject to all contracts and debts of the amalgamating corporations, and treats it as the party in any civil action already started.
How much does it cost to file?
The Ontario Business Registry fee for articles of amalgamation is $330, online or by mail. Professional fees and any newspaper notice are extra.
Can the deal be called off after the shareholders approve it?
If the amalgamation agreement allows it, section 176(5) lets the directors of an amalgamating corporation terminate it before the certificate is endorsed, even after shareholder approval.
Do we need a shareholder vote for a holding company amalgamation?
Not if section 177’s conditions are met; directors’ resolutions are enough. If they are not met, the long form with a special resolution applies.
Sources
- Business Corporations Act, R.S.O. 1990, c. B.16, ss. 1(1) (“special resolution“), 140.2, 174 to 180, 185 and 248
- Corporations Information Act, R.S.O. 1990, c. C.39, ss. 2(1), 2(2) and 4(1)
- Ontario.ca: Cost and time required to register, change or search (amalgamation fee $330)
- Ontario.ca: Ontario Business Registry, all services (filing articles of amalgamation)
- Income Tax Act, R.S.C. 1985, c. 1 (5th Supp.), s. 87 (amalgamations)
This page is general information about Ontario law, not legal advice for your situation. It reflects the law as of November 9, 2026.