Business Name Change Guide · Ontario · Licensed CPA

How to Change Your Business Name in Ontario

How to change your business name in Ontario, whether you are a sole proprietor changing a registered business name or a corporation changing its legal name. The two different routes, the name search, the CRA and record updates, and what a name change does and does not change. Written by a licensed Canadian CPA.

Book Free Consultation Know Exact Fees within 2 Minutes

How you change a business name in Ontario depends on your structure. A sole proprietor or partnership registers the new business name and cancels the old one through the Ontario Business Registry, while a corporation changes its legal name by filing Articles of Amendment. A name search is generally needed to confirm the new name is available, and your CRA accounts should be updated to match. A name change updates the name only, it does not create a new entity or change your existing obligations. We handle the correct route for your structure.

Two Different Name-Change Routes

The first thing to establish is what kind of name you are changing, because the route is completely different. If you are a sole proprietor or partnership operating under a registered business name, that name is a registered trade name, and you change it by registering the new name and cancelling the old one through the Ontario Business Registry. If you are a corporation changing its legal name, you file Articles of Amendment with the province to formally amend your articles of incorporation. A third situation is a corporation that only wants to change the trade name it operates under, which is handled as a trade-name registration rather than a legal-name amendment. Identifying which of these applies is the first step, and it determines everything that follows.

Getting the route right avoids doing the wrong filing and having to redo it. This page supports our full company registration and incorporation services, and the ongoing bookkeeping that keeps your records consistent after the change.

Sole Proprietor vs Corporation: How the Change Works

The mechanics differ by structure. Here is how a name change works for each, side by side.

Factor	Sole Proprietor / Partnership	Corporation
What you change	The registered business (trade) name	The corporation's legal name
How it is done	Register new name, cancel the old	File Articles of Amendment
Where	Ontario Business Registry	Provincial corporate filing
Name search	New name must be available	Name search to clear new name
Entity	Same person, new trade name	Same corporation, new name

In both cases the underlying business continues, a sole proprietor is the same person operating under a new trade name, and a corporation is the same legal entity under a new name. What differs is the filing: a registry re-registration for the sole proprietor, an Articles of Amendment for the corporation. We confirm which applies and handle it.

How to Change Your Name, Step by Step

Whichever route applies, the change follows a clear sequence:

Confirm your structure and the new name. Establish whether you are changing a sole-proprietor business name or a corporation's legal name, and choose the new name you want to move to.
Run the name search. Confirm the new name is available and not confusingly similar to existing names or trademarks, and adjust it if a conflict comes up.
File the change. For a sole proprietor, register the new business name and cancel the old one on the Ontario Business Registry; for a corporation, file the Articles of Amendment to change the legal name.
Update the CRA and your records. Update your business-number accounts to the new name, update the minute book for a corporation, and refresh your bank, invoices, contracts and licences.

A name change does not create a new entity: For a corporation, changing the legal name by Articles of Amendment keeps the same corporation, the same corporation number, and the same contracts, assets and obligations, only the name changes. For a sole proprietor, you remain the same person behind a new registered trade name. Nothing about your history or liabilities is erased by the change.

Updating the CRA and Your Records

Once the name change is filed, the important follow-through is keeping everything consistent. A name change alone generally does not require a new CRA business number, the existing number continues and the name is updated on your accounts, though a change of legal structure, such as sole proprietor to corporation, is different and does need a new number. You update your corporate income tax, GST/HST and payroll accounts to the new name so filings and correspondence match, and you generally do not re-register for GST/HST simply because the name changed. For a corporation, the minute book should be updated with the Articles of Amendment, the certificate reflecting the new name, and a resolution authorising the change. Beyond the official records, you update your bank, invoices, contracts, website, and any licences or permits, and notify suppliers and customers. We handle the registry and CRA changes and give you a clear checklist for the rest, keeping it aligned through our bookkeeping service.

What a Name Change Does and Does Not Change

It helps to be clear on the limits of a name change. Changing your name is not a sale, an amalgamation, or a change of structure, and it is generally not a taxable event, because it does not change ownership or transfer any assets. Your existing contracts, leases and obligations continue, for a corporation they continue with the same entity under the new name, so it is good practice to notify counterparties and update documents going forward rather than treat anything as ended. If your real goal is something more than a name, adding limited liability, moving from sole proprietor to corporation, bringing in owners, or selling, those are distinct steps with their own tax and legal consequences, and a name change does not accomplish them. A corporation can also keep its legal name and simply add a registered trade name, or change the trade name without amending the legal name, depending on what you actually want. We confirm your goal and handle the change, or the larger step, accordingly, and can pair it with incorporation where that is the real objective.

A Simple Worked Example

Consider the two common Ontario name-change situations, side by side:

Situation	What You File
Sole proprietor changing trade name	New business-name registration + cancel old
Corporation changing legal name	Articles of Amendment + name search
Corporation changing only its trade name	New trade-name registration + cancel old

Each situation carries its own provincial government fee, and the corporate amendment adds a name-search cost. In every case, the CRA accounts and records are then updated to the new name. Our professional fee to handle the correct route end to end is quoted upfront and includes HST; the government fees are separate.

Where business owners get a name change wrong: Filing the wrong route, amending a corporation when only a trade name is changing, or vice versa, forgetting to cancel the old sole-proprietor registration, not updating the CRA accounts so filings mismatch, skipping the minute-book update for a corporation, and assuming a name change alone gives them limited liability or a new structure. Each is avoidable by confirming the route first.

Case Study: Corporation Rebranding in Ontario

An established Ontario corporation wanted to rebrand under a new name and assumed it had to start a new company. We confirmed a name change was all that was needed, ran the name search to clear the new name, filed the Articles of Amendment so the corporation kept its number, contracts and history under the new legal name, updated the minute book with the amendment and resolution, and updated its CRA corporate tax, GST/HST and payroll accounts to match. The rebrand went through with no disruption to the underlying entity. The figures here are illustrative of the work we do, not a specific client file.

Legal name changed. Same corporation, contracts intact.

Changing Your Business Name? Let a CPA Handle the Right Route.

We confirm the route, run the name search, file the change, and update your CRA accounts. AFFORDABLE flat fees. All fees include HST; government fees separate.

Book Free Consultation

Frequently Asked Questions: Changing Your Business Name in Ontario

How do I change my business name in Ontario?

It depends on your structure. If you are a sole proprietor or partnership operating under a registered business name, you generally register the new name and cancel the old one through the Ontario Business Registry. If you are a corporation changing its legal name, you file Articles of Amendment. The path is different for each, and we handle both.

Can I just rename my existing business name registration?

Not exactly. A registered business name for a sole proprietor or partnership is generally not amended in place, you register the new name and cancel the old one, because the registration is tied to the specific name. The new name needs to be available and compliant. We handle the new registration and the cancellation together so there is no gap.

How do I change the name of my sole proprietorship?

As a sole proprietor, your business name is a registered trade name, so to change it you register the new name through the Ontario Business Registry, obtaining a new Master Business Licence and Business Identification Number, and cancel the old registration. Your CRA accounts may need updating to reflect the new name. We handle the registration, cancellation and CRA updates.

How do I change my corporation's legal name in Ontario?

An Ontario corporation changes its legal name by filing Articles of Amendment with the province, which formally amends the articles of incorporation to the new name. A name search is generally required to confirm the new name is available. Once approved, the corporation operates under the new legal name. We prepare and file the Articles of Amendment for you.

What are Articles of Amendment?

Articles of Amendment are the document a corporation files to formally change its articles of incorporation, including changing its legal name. Filing them updates the corporation's name on the public record and issues a certificate reflecting the change. It is the correct route for a corporate name change, as opposed to a sole proprietor's trade-name registration. We prepare and file them.

Do I need a NUANS or name search to change a corporate name?

Generally yes. Changing a corporation's name to a new named option usually requires a name search to confirm the new name is available and not confusingly similar to existing names or trademarks. Changing to a numbered name does not need one. We run the required search and clear the new name before filing the amendment.

How much does it cost to change a business name in Ontario?

It depends on the structure and route. A sole proprietor registers a new business name for a provincial fee, while a corporation pays a provincial fee to file Articles of Amendment, plus any name-search cost. We quote a flat professional fee to handle the change correctly, and all our fees include HST; the government fees are separate.

How long does a business name change take?

A sole-proprietor business-name registration through the Ontario Business Registry is often processed quickly, sometimes the same day, while a corporate Articles of Amendment filing is usually processed within a short period after filing. The related CRA and record updates add a little time. We handle it promptly and confirm when the change is effective.

Do I need a new business number when I change my name?

Usually not. A change of name alone generally does not require a new CRA business number, the existing number continues, and you update the name on the account. A change of legal structure, such as from sole proprietor to corporation, is different and does need a new number. We update your CRA accounts to reflect the new name.

Will changing my business name affect my GST/HST account?

Generally the account continues under the same number, with the name updated. You do not usually need to re-register for GST/HST just because the name changed, but the account details should be updated so filings and invoices match. We update your GST/HST and other CRA accounts so everything stays consistent.

Does changing my name change my corporation's identity?

No. Changing a corporation's legal name through Articles of Amendment changes the name, not the corporation itself, it remains the same legal entity, with the same corporation number, contracts, assets and obligations. Only the name on the record changes. This is an important distinction from starting a new corporation. We make the change while preserving the entity.

Do I have to tell the CRA when I change my business name?

Yes. You should update the CRA so your business number accounts, corporate tax, GST/HST and payroll, reflect the new name, keeping your filings and correspondence consistent. An out-of-date name on your CRA accounts can cause mismatches. We handle the CRA updates as part of the name change.

What else do I need to update after changing my name?

Beyond the registry and the CRA, you update your bank accounts, invoices, contracts, website, licences and permits, and let suppliers and customers know. Consistency across all of these avoids confusion and payment issues. We handle the official registry and CRA changes and give you a clear checklist for the rest.

Can I change my business name and keep the old one too?

Sometimes. A corporation can operate under a registered trade name that differs from its legal name, so you can keep a legal name and add a trade name, or vice versa, rather than fully replacing it. A sole proprietor can also hold more than one registered business name. We advise on whether replacing or adding a name fits your goal.

What is the difference between a legal name and a trade name?

A legal name is the official name of the entity, your own name for a sole proprietor, or the incorporated name for a corporation. A trade name, or operating name, is a name you register to do business under, which can differ from the legal name. Changing one does not automatically change the other. We handle both correctly for your situation.

Do I need to change my name if I only use a trade name?

If you operate a corporation under a trade name and only want to change that operating name, you register the new trade name and cancel the old one, without necessarily amending the corporation's legal name. The right approach depends on whether it is the legal name or the trade name you are changing. We confirm which and handle it.

Can I change a numbered corporation to a named one?

Yes. A numbered corporation can adopt a name by filing Articles of Amendment to change its legal name from the number to a chosen name, after a name search confirms availability. This is a common step once a business is established and wants a brand. We run the search and file the amendment to give your numbered company a name.

What happens to my contracts when I change my corporate name?

They generally remain valid. Because a corporate name change does not create a new entity, existing contracts, leases and obligations continue with the same corporation under its new name. It is good practice to notify counterparties and update documents going forward. We make the change while preserving continuity, and flag what to update.

Is a business name change the same as selling or restructuring?

No. A name change simply changes the name; it is not a sale, amalgamation or change of structure. Selling the business, adding owners, or converting a sole proprietorship to a corporation are different steps with their own tax and legal consequences. If your goal is one of those, we handle it as the distinct transaction it is.

Can I change my business name if I have outstanding filings?

It is best to be current, but a name change can usually proceed alongside outstanding filings, which still need to be addressed. The name change does not erase prior obligations under the old name. We can bring your filings current and handle the name change together so everything is clean and consistent.

Does my minute book need updating after a corporate name change?

Yes. After changing a corporation's legal name, the minute book should be updated to include the Articles of Amendment, the certificate reflecting the new name, and a resolution authorising the change. Keeping the corporate records current is a legal requirement. We update the minute book as part of the amendment.

Will a name change affect my business credit or banking?

Your bank should be told so accounts, cheques and merchant details reflect the new name, and it is sensible to keep your business credit records consistent. The underlying accounts generally continue, since the entity is unchanged for a corporation. We update the official records and give you what the bank needs to update its side.

Can I change my business name more than once?

Yes. There is no limit on how many times you can change a registered business name or amend a corporation's name, though each change has its own filing and cost and should be done properly. Frequent changes can confuse customers, so it is worth settling on the right name. We handle each change correctly when you make it.

What if my desired new name is already taken?

You will need to choose an available name. A name search reveals conflicts with existing names and trademarks, and if your first choice is taken, we help you select a compliant alternative or adjust the name so it clears. Securing an available, compliant name is part of doing the change properly. We handle the search and clearance.

Do I need to change my name on my tax returns?

Your future returns should reflect the new name once the change is registered and the CRA accounts are updated. The entity and its account numbers generally continue, so it is the name that updates, not the account. We make sure your corporate tax, GST/HST and payroll filings carry the correct name going forward.

Is changing a business name a tax event?

Generally no. Simply changing the name of a sole proprietorship or a corporation is not itself a taxable event, because it does not change ownership or transfer assets. What can have tax consequences is a change of structure, such as incorporating, which is a different step. We confirm your change is a true name change and handle any structural step separately.

Should I incorporate instead of just changing my business name?

It depends on your goals. If you want a new name and nothing more, a name change is enough. If you also want limited liability, lower corporate tax on retained profit and more planning, incorporating may be the better move, and it can be done with your chosen name. We review your situation and recommend the step that fits, then set it up.

Can Gondaliya CPA handle my business name change?

Yes. We confirm whether you are changing a sole-proprietor business name or a corporation's legal name, run the required name search, register the new name and cancel the old one or file the Articles of Amendment, update your CRA accounts and minute book, and keep your filings consistent. Fees are an AFFORDABLE flat amount including HST, quoted upfront with government fees separate, paid by Interac e-Transfer to info@gondaliyacpa.ca, auto-deposit enabled, security question Not Applicable.

How much does it cost with your firm?

From $400, depending on whether it is a sole-proprietor name change or a corporate amendment, and any name-search cost. We quote an exact flat professional fee before starting, all our fees include HST, and the government fees are separate. There is no hourly billing, so the number you are quoted is the number you pay.

How do I get started?

Please book a free consultation and tell us your structure, sole proprietor or corporation, and the new name you want. We confirm the right route, run the name search, file the change, and update your CRA accounts and records. Book Free Consultation →

What Our Clients Say

1300+ five-star reviews from business owners across Ontario and Canada.

Change Your Ontario Business Name the Right Way.

We confirm whether you are changing a sole-proprietor business name or a corporation's legal name, run the name search, file the change, and update your CRA accounts and records. AFFORDABLE flat fees. All fees include HST; government fees are separate.

Book Free Consultation Know Exact Fees within 2 Minutes