Myth: I Registered My Business Name, So No One Else Can Use It
You incorporated. You registered your business name with the province. The certificate came through, official, stamped, government-issued. Surely that name is yours now? Not in the way you think.
The Myth
Registering a business or corporate name gives you exclusive rights to that name, the same way a trademark would. No one else can legally use it once it's registered to you.
The Reality
A business name registration (or a corporate name) and a trademark are different tools that do different jobs, and the protection gap between them catches a lot of business owners off guard.
Registering a business name (or incorporating under a name) generally satisfies a legal requirement, you need a registered name to operate, sign contracts, open bank accounts, and so on. In most cases, the registry only checks that your exact name isn't identical to another active registration in that jurisdiction. It does not check trademark databases, and it does not stop someone from using a similar (or even identical) name for different goods or services, in a different province, or as a trademark.
A business name registered in Ontario doesn't stop someone from registering, or simply using, the same name in Alberta or BC. Trademark rights, by contrast, can extend across all of Canada.
Incorporating federally simply means your corporate name is protected as a corporate name across Canada and no one else can incorporate under an identical or deceptively similar corporate name federally or provincially. This does not give you trademark rights nor the exclusive right to use that name on products or with services,
If another company already has trademark rights (registered or through prior use) in a name confusingly similar to your registered business name, they can potentially stop you from using it, even though your business name registration is perfectly valid and in good standing. Being "registered" with a corporate registry doesn't make you immune from a trademark infringement claim.
Because business name registries generally aren't checking for confusing similarity, a competitor can often register a name that's extremely close to yours (different legal suffix, slightly different spelling, different province) and you may have no automatic recourse, unless you have trademark rights to point to.
Why This Matters
If your business name is also your brand, the name your customers search for, see on your storefront, and associate with your reputation, then a business name registration alone leaves that brand largely unprotected. The certificate proves you're operating legally. It doesn't prove you own the brand.
The Takeaway
Incorporating and registering your business name are necessary first steps for operating legally, but they're not a substitute for trademark protection. If your name matters to your brand, get it cleared and consider registering it as a trademark, separately from, and in addition to, your business name registration.