In Canada, your legal name and your business name are two distinct concepts with different legal implications. Confusing them leads to registration errors, banking problems, and CRA complications. This guide explains the difference clearly.
Your Legal Name
Your legal name is the name on your government-issued identification — your birth certificate, passport, or permanent resident card. For most Canadians, this is your full first and last name (e.g., “Sarah Chen”).
As a sole proprietor, you have the right to conduct business under your legal name without any registration. You can send invoices as “Sarah Chen,” sign contracts as “Sarah Chen,” and report income to the CRA as “Sarah Chen.” No provincial business registration is required.
Your Business Name (Trade Name)
A business name — also called a trade name or “doing business as” (DBA) name — is any name you use to conduct business that is different from your legal name. Examples:
- “Chen Consulting” (includes your last name but adds a word)
- “Maple Digital Marketing”
- “The Bookkeeping Studio”
- “S. Chen Creative Services”
All of the above differ from “Sarah Chen” and therefore require provincial business name registration if you want to use them legally in most Canadian provinces.
When Does a Corporate Name Apply?
If you incorporate a company, the corporation has its own legal name distinct from yours — for example, “1234567 Ontario Inc.” or “Chen Consulting Services Inc.” The corporate name is not your personal legal name. Your personal legal name and the corporation’s name are separate legal entities.
A corporation can also operate under a trade name different from its corporate name — for example, “1234567 Ontario Inc. doing business as The Bookkeeping Studio.” The corporate name is the legal entity; the trade name is what the business shows to customers.
Practical Implications
Banking
Most Canadian banks will open a business bank account in your legal name with just your personal ID. To open an account under a business name, you need to show a business name registration certificate. This is one of the most common reasons sole proprietors register a business name even when it is not legally required.
Invoicing
You can invoice clients under either your legal name or your registered business name. On GST/HST invoices (if you are registered), your legal name or business name must appear along with your GST/HST number. The CRA links your GST/HST account to your SIN (personal) or Business Number — not necessarily to a business name.
Contracts
Contracts signed under your legal name bind you personally. Contracts signed under a registered business name also bind you personally (since a sole proprietorship has no separate legal identity from its owner). Signing under a corporate name binds the corporation, not you personally — this is one of the key benefits of incorporation.
CRA Tax Filings
You always file your personal tax return under your legal name and SIN, regardless of what business name you use. Your T1 return and Schedule T2125 are filed as “Sarah Chen,” even if your invoices say “Chen Consulting.” The CRA links your business income to your personal SIN.
Common Scenarios
| Situation | Registration Required? | What to Use |
|---|---|---|
| Freelancing as “Sarah Chen” | No | Legal name, no registration needed |
| Freelancing as “Chen Consulting” | Yes (in most provinces) | Register as business name, use on invoices |
| Incorporated as “Chen Consulting Inc.” | Yes (via incorporation) | Corporate name on all documents |
| Corp operating as “Studio C” (trade name) | Register trade name if different from corp name | Trade name for client-facing, corp name legally |
Frequently Asked Questions
Can I change my business name after registering?
Yes, by filing an amendment with the provincial registry. In Ontario, you can update your business name through the Ontario Business Registry for a $60 fee. BC, Alberta, and other provinces have similar amendment processes.
Do I need to use my business name on all my invoices?
No legal requirement specifies which name must appear on invoices, as long as your client can identify who they are paying. However, consistency matters for banking and CRA purposes — use either your legal name or your registered business name consistently. GST/HST invoices must clearly identify the registrant.
What if a client wants to make a cheque out to my business name?
You can only deposit a cheque made out to a name that you are authorized to receive at your bank. If your bank account is in your legal name, you may not be able to deposit a cheque made out to “Chen Consulting.” This is a practical reason to register a business name and open a business bank account under that name.