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Corporate

What is the process for changing my Ontario corporation's name?

TSL Written by the Treadstone Law team· Updated June 2026

Changing an Ontario corporation's name involves several steps. First, you conduct a NUANS (Newly Upgraded Automated Name Search) search to confirm the proposed new name is available and not confusingly similar to an existing corporation or trademark. A NUANS report is valid for ninety days and must be submitted with your filing.

Once you have a favourable NUANS report, shareholders pass a special resolution approving the name change, typically requiring at least two-thirds of votes cast. You then file articles of amendment with ServiceOntario, including the NUANS report and the prescribed fee. The government reviews the filing and, if approved, issues a certificate of amendment showing the new name.

After the name is officially changed, you need to update your business records across multiple places: the Canada Revenue Agency (for business number and tax accounts), your bank, any registered trademark, leases, contracts, provincial or municipal licences, and signage. The legal name change takes effect on the date the certificate of amendment is issued. Plan for a transition period where both the old and new names may appear in various systems.

Key takeaways

  • A NUANS search must confirm name availability before filing.
  • Shareholders pass a special resolution; articles of amendment are filed with ServiceOntario.
  • CRA, bank, licences, and contracts must be updated after the legal name changes.
  • The NUANS report is valid for ninety days.
This is general information, not legal advice. It doesn’t create a lawyer–client relationship, and the rules can change. For advice on your situation, a Treadstone corporate lawyer can help.
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