How to Get a Master Business Licence in Ontario

As an entrepreneur, one of your first key actions is registering your business name for a Sole Proprietorship. This means applying for a Business Name Registration for a Sole Proprietorship, which you might know by its previous name, Master Business Licence (MBL). This name change is part of Ontario’s recent updates to its business registration, but don’t worry, both the contents of a business name registration and a master business licence remain the same. 

Right from the get-go, there is a seemingly endless list of important tasks to do as a new business owner, from opening up a business bank account to setting up your POS systems, but one of the most important tasks is ensuring your business is operating legally—a business name registration is a crucial step in that process.

Key Takeaways

• If you own a sole proprietorship in Ontario and want to have a business name that’s not your personal name, you need a Master Business Licence to operate legally.
• The fees involved differ depending on whether you register online, in person, or through a service provider.
• The renewal timeline is every five years, and you must renew on time to keep your registration active.

What is a Master Business Licence?

A Master Business Licence (MBL) is Ontario’s provincial business name registration document for sole proprietors. It lists your business name, address, a Business Identification Number (BIN), and a brief description of your business. 

It establishes legal business presence under the Ontario Business Names Act and authorizes legal business operations under a name other than your own.

A note on the name change: Ontario recently renamed this document to the “Business Name Registration for a Sole Proprietorship.” The content and function are identical to the MBL. Only the label has changed. You may still see both names used interchangeably, including on government portals. Throughout this article, we’ll use “Master Business Licence” since that’s the term most people still search for.

Key Features of a Master Business License

A Master Business Licence outlines key details of your business. Here’s an overview of the main parts of a Master Business Licence in Ontario.

• Business Name: The official name of your sole proprietorship.
• Business Identification Number (BIN): A unique number assigned to your business by the province.
• Validity Period: The effective date and expiry date; valid for five years from registration.

The Master Business Licence serves as the official confirmation that your business has been registered with the province. It also serves as a foundational document that helps you meet key municipal regulations.

• Banking Requirement: Often required to open a business bank account.
• Permit Applications: A requirement for you to apply for additional permits and licences.

More than its core functions, the real benefits of having a Master Business Licence include allowing you to build credibility for your business and helping you separate business and personal finances more effectively.

Do I Need a master Business Licence?

Whether you need to register for a Master Business Licence will depend primarily on your business structure. If you are registering a sole proprietorship and you wish to do business under a name other than your full legal name, you’ll need a Master Business Licence to do so.

For example, if your name is John Smith and you wish to do business simply as John Smith, you don’t need to register your business. However, if you plan to do business as something like John Smith Professional Organizing, you’ll have to register for a Master Business Licence. 

For new entrepreneurs, the most common scenario requiring a Master Business Licence is when setting up a sole proprietorship.

Types of Business Structures Eligible for a Master Business Licence in Ontario

The Master Business Licence is the former name of the document which is issued to sole proprietorships when they register their business name. As such, the only business type that is eligible for a Master Business Licence is a sole proprietorship.

How to Register Your Business with the Ontario Government

Unless you’re operating your sole proprietorship under your own legal name, you’re required to register your business name, and there are a number of benefits to registering your business  name even if it’s not legally required. 

You can register your business directly through Service Ontario, or you can register with Ownr to save time, money, and stress. If you choose to register by yourself, here are the steps to registering your business in Ontario:

1. Register for a ONe-key account. This will allow you to log into Service Ontario to start the registration process.
2. Sign into your ONe-key account and register for a Service Ontario account.
3. Submit the Business Name Registration for a Sole Proprietorship application by providing your business name, your mailing or office address, a valid email address, and a description of what your business will do. You’ll also need to pay the application fee at this stage.

Once you’ve completed these steps, you’re done! You’ll receive your Master Business Licence document as well as your nine-digit BIN and then you’ll be ready to practice business in Ontario. Don’t forget to check if your business needs additional permits and licences to operate legally.

What Does a Master Business Licence Provide?

Once you’ve submitted your registration and obtained a master business licence, you are granted the following: 

• Registration with the Province of Ontario for five years, after which time you have to reapply
• A business name registration document that gives you the legal right to operate under your business name within Ontario
• The ability to open a business bank account under the name that you registered
• The right to advertise under the business name that you registered and to promote your business name on marketing materials such as business cards

When your application is processed, you’ll receive a document that looks like this:

Before the recent update, this is what you would have received:

As you can see, the information contained in the new business name registration for a sole proprietorship is generally the same as the master business licence. 

One improvement is the number issued to each business is now listed as the “business identification number,” making it easier to distinguish between the federally issued business number.

What is a Master Business Licence Number?

Your Master Business Licence  number, or BIN, is a unique nine-digit number that you’ll receive when you register your sole proprietorship. Your BIN will be required if you decide to pursue business incorporation, create an import/export account, or register for an account with Canada Revenue Agency (CRA).

Note: Your BIN or Business Identification Number, is different from your Business Number (BN). The BIN is a nine-digit number issued by the Ontario government to identify your provincial account. The BN, on the other hand, is issued by the Canada Revenue Agency (CRA) and enables tax collection through federal program accounts like payroll and import/export.

What are Some Limitations of a Master Business Licence?

A Master Business Licence, while important, is limited in terms of the protections it offers your business. 

Here are some limitations of business name registrations:

• There is no name protection against other businesses in Ontario operating under a similar or identical name
• Sole proprietors do not have liability coverage
• No have access to corporate tax advantages
• There is limited ability to make changes to your registration

These are some of the reasons entrepreneurs choose to incorporate their business, even as a single-person corporation. 

If your business exposes you to a high degree of risk for personal liability, you might want to consider incorporating rather than obtaining a Master Business Licence. A corporation is a separate legal entity, meaning the liabilities and debts incurred by the corporation are not automatically yours. 

For many types of businesses, registering as a sole proprietor is a great place to start. Later down the road, you may choose to incorporate for the extra benefits.

See also: how to find your Canadian business incorporation number once you incorporate your business.

How Do I Apply for a Master Business Licence?

Registering online is fast and easy with Ownr. You can also complete your business registration online, by mail, or in person at a Service Ontario location. 

Keep in mind that if you choose to register by mail, the processing times may be longer.

What You Need to Provide with Your Application

All you need to register your sole proprietorship business name in Ontario is your business name, your mailing or office address, a valid email address, and a description of your business activities.

Obtaining Your Master Business Licence with Ownr

If you’d rather skip the back-and-forth with government portals, Ownr simplifies the licencing process for sole proprietors from start to finish. 

It costs less than registering directly through Service Ontario (just $49 through Ownr versus $60 online or $80 in person), and you get unlimited NUANS name searches included, so you’re not stuck paying $8–$26 each time a name comes back unavailable. Plus, if you’re an RBC client, you can get your $49 registration fee back.

Entrepreneurs who register through Ownr also get their documents faster, with less friction than the DIY route. 

If you’re ready to make your business name registration official, get started through Ownr today.

Who Can Register a Master Business Licence?

The registration requirements for a Master Business Licence leave it open to most adults in Ontario. 

As long as you are 18 or older, you can likely register for a Master Business Licence in Ontario. Unlike incorporations, you don’t have to be a permanent resident or citizen of Canada to register. 

If you are not sure if your immigration status qualifies you to apply, it’s best to check with Immigration Canada. You can also read our guide on starting a business in Canada as a non-Canadian for more details.

How Much Does It Cost to Get a Master Business Licence?

Registering your business through Ownr costs just $49, and gives you access to unlimited NUANS business name searches, which may be valuable if your first choice of name has already been taken. 

If you choose to go with a different registration option, NUANS reports can cost between $8 and $26 depending on the records you include in your search. This is on top of the filing fees.

Registering your sole proprietorship online with the government has a $60 filing fee while registering in person or by mail through Service Ontario costs $80.

How Long Does a Master Business License Take?

If you register online, you can typically receive your MBL the same day. In some cases, it may take one to two business days.

Registering in person with Service Ontario is usually processed on the spot, though wait times at the office may add some delay. Registering by mail has the longest processing time and can take several weeks, depending on volume.

Using Ownr for your business license application is the fastest option for most people. The platform handles the paperwork on your behalf and connects directly with business portals, so there’s less back-and-forth and fewer chances for errors that could slow things down.

How Do I Renew, Cancel, or Get a Copy of My Master Business Licence?

Need to update, cancel, or simply locate your MBL? Here’s what you need to know about managing your registration.

How to Cancel a Master Business Licence

You can amend or cancel a business registration at a Service Ontario location, by mail, or online by using your Ontario ONe-Key login. If you don’t have this login, you can request a company key online.

When deciding to change your business name, you’ll need to cancel your previous Master Business Licence and register for a new one. 

If you close your business, you should cancel the associated business licence. It’s recommended you also advise the Canada Revenue Agency of the cancellation so that the abrupt end in your business activity doesn’t trigger an audit. 

How Do I Renew My Ontario Master Business Licence?

Your Master Business Licence will be valid for 5 years, at which point you have to renew it. The easiest way to renew your Ontario Master Business Licence is through Service Ontario’s online portal. You can also call Service Ontario or submit the Renew a Registration form by mail or email. 

How Do I Get a Copy of My Master Business Licence in Ontario?

If you lose your MBL and just need to know your BIN, you can log in to the Ontario Business Registry to identify it.

You can also obtain a copy of your master business licence by contacting Service Ontario by phone or email, or by signing in to the same online portal through which you first registered.  

Note: if you obtained an MBL before October 2021, your business information has been migrated to the new system. You’ll have to get a company key to log in for the first time. If you’re registering your business any time after October 2021, you’ll be issued this company key when you register. 

Common Mistakes to Avoid with Your Master Business Licence

Even a straightforward registration like the MBL comes with a few pitfalls. Here are the ones that catch new business owners off guard most often.

• Forgetting to renew on time. Your MBL is valid for five years, so your renewal process isn’t something you can set and forget. Missing the deadline means your registration lapses, and you lose the right to operate under your business name. That puts your business compliance at risk. Fixing it means paying to re-register from scratch.
• Assuming the MBL protects your business name. A business name registration secures your name in the provincial registry, but it does not prevent another business from registering a similar or identical name. The MBL validates business legitimacy and demonstrates compliance with the Ontario government. If protecting your name matters, look into incorporating or filing a trademark separately.
• Confusing your BIN with your federal Business Number. Your Business Identification Number (BIN) is issued by Ontario to identify your provincial account. Your federal Business Number is issued by the CRA and functions as a tax identification number for things like payroll and GST/HST. Mixing them up on government forms can delay applications and create regulatory compliance headaches that take time to untangle.
• Not cancelling the MBL when closing the business. If you stop operating, cancel your registration. An active MBL on a closed business can facilitate business monitoring by the CRA and flag your account for review.

Ownr helps you stay on top of registration timelines so none of these mistakes catch you off guard.

Frequently Asked Questions about Master Business Licences

Do I need a Business Licence in Ontario?

If you’re operating a sole proprietorship in Ontario under any business name other than your legal name, you need a master business licence as proof of registration.

Can I use my MBL in other provinces?

No. The MBL applies only to specific jurisdictions. It is issued by the Ontario government and is only valid for operating within Ontario. If you want to operate in other provinces, you’ll need to register your business name separately in each jurisdiction. 

For example, here’s how to start a business in Alberta. You’ll see that each province has its own registration requirements.

Do I need to have insurance?

Different businesses have different needs when it comes to insurance. Types of business insurance you may need include general liability insurance, commercial property insurance, business income insurance, workers’ compensation insurance, and more. It’s best to speak to a professional insurance broker to make sure your business is fully protected.

Getting a Master Business Licence is an easy and important step for many new businesses. By making sure you register your licence from the beginning, you can feel confident that you are operating your business legally and that everything is above board, giving you the peace of mind to focus on growing your business. 

How long is my Master Business Licence valid for?

Your Master Business Licence is valid for five years. You’ll need to renew it before it expires to make sure you can keep operating your business legally.

Can I have multiple business names under one MBL?

No. Each registered business name requires its own MBL. If you’re a sole proprietor operating under multiple business names, you must register each one separately. The MBL does not cover multiple business locations or names under a single registration.

Can I transfer my MBL to someone else?

No. A Master Business Licence is tied to the individual sole proprietor and cannot be transferred. If ownership of the business changes hands, the new owner must register their own MBL and ensure regulatory compliance under their own name and registration.

What’s the difference between an MBL and a municipal business licence?

An MBL is a provincial registration under the Business Names Act, while a municipal business licence is issued by the local city or municipality and relates to zoning, health, or industry-specific compliance. Some businesses may need both.