How to Renew Your Master Business License in Ontario

Key Points About How to Renew Your Master Business License in Ontario

📅 Business name registrations are valid for 5 years, with renewal available up to 6 months before expiry.
💻 You can renew online through the Ontario Business Registry using your BIN and Company Key.
💰 The government renewal fee is $60, regardless of whether you’re a sole proprietor, partnership, or corporation using a trade name.
⚠️ Missing the deadline can put your registration at risk and, after the grace period, you may need to register the business name again.
🏢 Not every business needs an MBL renewal — it generally applies when you’re operating under a registered business or trade name.

For entrepreneurs operating in Ontario under a trade name, or for sole proprietors and partners, one part of your business administration’s process you should never forget is the Master Business License renewal.

Here’s the problem – all business owners tend to register their business just once and then ignore subsequent registrations. Most people don’t have the time to keep up with all the paperwork while growing the business and trying to stay organized. 

One day, a few years later, the bank calls with a problem, a client asks for proof of registration, or you look up your registration in the Ontario Business Registry and realize it’s expired. That’s when people start worrying about it. 

The great news is renewing your Ontario business registration is easy, once you know how to go about it. Do it on time, and it will safeguard your business name, keep your business up and running, and keep you from having to redo it completely.

In this guide, you’ll learn all you need to know about: how and when to renew, what documentation you’ll need, a step-wise process to renewing online, the cost involved and the consequences of missing the deadline. Let’s dive right in. 

What is a Master Business License in Ontario?

Before we dive into the renewal process, let’s take a step back to see what exactly a Master Business License (MBL) is and how it functions.

When you register a business name in Ontario, you’ll be issued a Master Business License, under the Business Names Act. This document verifies that you have registered your business name in the province of Ontario.

You’ll need one if you’re:

• A sole proprietor and doing business under another name (other than your own legal name)
• Engaging in a partnership under a business name
• A corporation that’s doing business under a trade name that’s not the same as the incorporated legal name.

For instance, suppose you are Jane Smith, legally, but you operate a handyman business called “Lawn & Order.” In this case, you would have to register that trade name – and it’s your Master Business License that demonstrates that registration.

Most of the time, banks will ask for a MBL when opening a business account, suppliers who want to establish payment terms, clients for validation of your existence, and government organizations for applications.

When You Need to Renew Your Ontario Business Registration

Business name registration in Ontario filed under the Business Names Act are valid for five years. After five years has passed, the registration will expire, and so will your right to operate your business under the registered business name.

The six-month renewal window

The Ontario Business Registry opens a renewal window six months before the expiry date of your registration. This means you can renew up to 6 months earlier, without losing any time on your registration — your new five-year renewal period starts from the original expiry date, not from the day you submitted the renewal.

This window is there to prevent business owners from getting a panic call at the last minute. With a renewal notice or calendar reminder 6 months out, you can handle it right away and get on with business.

The 60-day grace period

If you miss the expiry date, there is a 60-day window in Ontario where you will still be able to renew without re-registering. It’s great to have, but shouldn’t be abused or intentionally relied on.

If your registration expires in the grace period, you’re no longer registered. Your business name is not protected any longer, and you may run into problems with banks, clients, or government agencies if they need proof of current registration.

What happens after the grace period

If you let your registration expire and then don’t renew it during the 60-day grace period, your registration is cancelled. This means you will no longer be able to renew it, you will have to register your business name again (from scratch). 

This means you will need to go through the registration process again, and pay your registration fee again. You may also lose your business name if it has been registered by someone else in the meantime.

It is important not to overlook this. Business names in Ontario are registered on a first-come, first-served basis. If you fail to register your business name early, and someone else likes the name, they have the opportunity to take the name during that gap period. 

Why expired registrations cause real problems

Beyond the name-loss risk, an expired registration creates practical headaches:

• Your bank could raise compliance concerns on your business account
• Clients or partners verifying your registration will find it inactive.
• Government grant and procurement applications generally require active registration
• There could be issues if CRA contacts are associated with the registration of your business name.

The easiest solution to all this is to renew on time.

Who needs to renew a Master Business License in Ontario?

Not all business owners in Ontario need to renew their Master Business License. If you’re unsure whether you fall into the category that needs to renew, go through this list: 

Sole proprietorships

If you do business as a sole proprietor in your own full legal name (and nothing but your legal name), you do not need to register under the Business Names Act, hence, have no renewal to complete.

But if you are working under a different name then your actual legal name, then you must register. So even if your name is John Carter, ‘John Carter Consulting’ must be registered as it’s not your full legal name as it appears on your government ID.

Partnerships

If a general or limited partnership operates a business under a business name (not the partners’ personal names), they must register and renew under the Business Names Act.

Corporations using trade names

A corporation that is incorporated in Ontario has a legal corporate name, such as “1234567 Ontario Inc.” or “Smith Holdings Ltd.” If that corporation operates publicly under a name other than its legal corporate name (its “trade name”), that trade name will need to be registered and renewed separately.

Note that the corporation itself does not expire – incorporation is ongoing. But the registration of trade names definitely does expire every five years.

Businesses operating under names different from legal personal names

This is a real shock to many sole proprietors. People often think that they can append anything to their name (for example, ” & Co.”, “Services”, a word of their choosing) without registration. However, they can’t; because any word or phrase that’s not your exact legal name requires registration under Ontario law.

Information and documents you need before renewing

Gather your documents and information before you begin the renewal process, as it will save you a lot of time. You will need the following.

Business Identification Number (BIN)

Your BIN is the unique number that Ontario issues when you register your business. Your BIN is the number that appears on your first Master Business License, and is also located in the Ontario Business Registry.

Just find your BIN by entering your business name in the free search in the Ontario Business Registry. Your BIN will appear next to your registration details if you do not have the original MBL.

Company key

Your Company Key is a confidential code that provides administrator access to your business registration. This is used for your business registration on the Ontario Business Registry. It’s used to access your registration in order to update it including renewals.

If you registered your business prior to the launch of the Ontario Business Registry (October 2021), you may not have a Company Key on file. If this is the case, you’ll need to request a Company Key before you’re able to renew online. Company Key requests can be made through the Ontario Business Registry – you will need your BIN and the email address tied to your registration.

If you signed up after October 2021, your Company Key should have been sent to you at the time of registration. Search through your first registration email.

Ontario business registry account access

All renewals are made through the Ontario Business Registry (OBR), formerly known as the ServiceOntario system. If you don’t already have an account, you will need to register one at ontario.ca/businessregistry.

To create an account, you need a current email address and proof of identity. If you registered your business on an older system, you might have to “claim” your business in the OBR with your BIN and Company Key before you’re able to manage it online.

Current business information

Prepare your existing business address, telephone number and business activity description. When renewing your registration, you have the chance to change this information. It’s worth reviewing it while you’re in the system. 

Step-by-step guide to renewing your Master Business License online

The Ontario Business Registry makes online renewal the default and most efficient option. Here’s how to go about it. 

Step 1: Log in to the ontario business registry

Visit ontario.ca/businessregistry and sign in using your account ID and password. Don’t have an account? Sign up now! It only takes about five minutes to do so.

Step 2: Locate your business registration

After login, go to “My Registrations” or search your business by using your BIN number. If your business isn’t showing in the list, you’ll need to claim it by using the Company Key.

Step 3: Select the renewal option

If the registration for your business is currently within the six-month renewal window, or the 60-day grace period, you’ll see an option to renew your registration button when viewing your business registration information. Choose “Renew Registration.”

Step 4: Review and update your business information

The system will display your current registration details:

• Business name
• Business address
• Mailing address (if different)
• Type of business
• Business activity description
• Owner/partner information

Review all the fields thoroughly. If there have been any changes – for example, you’ve changed location, updated the services you offer, or brought on a partner – then now’s the best time to update it. Changes done during renewal are effected immediately.

If you need to update ownership (add a partner, delete a partner, etc.), please note that some changes need to be made by separate filing, rather than by the renewal form alone. We will discuss this in a later section.

Step 5: Confirm the renewal

Once you have finished editing and completing your registration, you will be required to verify the accuracy of your registration. Review each of your entries before submitting the registration.

Step 6: Pay the renewal fee

At present, the government fee for renewing an Ontario business name registration is $60, payable by credit card through the Ontario Business Registry.

If your renewal is handled by a third party service provider, the cost for this service will be added to the government filing fee. 

Step 7: Download your confirmation

Upon receipt of your payment, your renewal has been processed. You can directly access and download a copy of your renewed Master Business License from the Ontario Business Registry right away.

Store this somewhere safe and sound as you will need it to open up bank accounts and grants etc. Also make a note of your new expiry date (five years from your last expiry date) in your calendar.

How much does it cost to renew?

Government fees

The fee for renewing a business name registration with the Ontario Business Registry is $60. It is the same for a sole proprietorship, partnership or corporate trade name registration.

Third-party service provider fees

There are several companies that are willing to assist you with renewing your Ontario business registration. Usually they will charge an additional fee to the government filing fee of $60, varying from about $50 to $150 or more, depending on the company and the level of service.

You may want to consider paying a third-party if you have multiple registration to do, if you are not sure how to do it, or if you simply prefer someone else to do the follow-up, should there be a problem. For most simple renewals, though, you can do the Ontario Business Registry by yourself, which saves you the service fee. 

Refunds and failed payments

If a payment fails during the renewal process, your renewal is not completed. You’ll have to restart the process. Make sure your payment method is good before going through the process again. The Ontario Business Registry does not charge for failed transactions.

Once a renewal has been successfully processed, the Government filing fee is usually non-refundable. Therefore double-check all of your business information before confirming.

Common problems during renewal and how to solve them

Missing or lost Company Key

This is the most common problem. If you are unable to locate the Company Key, simply call the Ontario Business Registry at 1-800-361-3223. They will confirm your identity and help you recover or reset your access to your registration.

Be ready to give your BIN and the details on your original registration (business address and registration date).

BIN lookup issues

Can’t find your BIN? Try searching for it using the public search tool on the Ontario Business Registry website. Enter your business name-the BIN should be displayed with your registration information. No results? Your registration may have expired and been taken off the registry.

Ontario business registry account problems

If you registered your business prior to October 2021, your registration will be stored in the old system and will need to be claimed in the new OBR to be administered online. Claim your registration by entering your Business Identification Number and Company Key at the OBR portal. If there are errors, then reach out to OBR support directly.

Ontario BIN vs. CRA Business Number: What’s the Difference?

This is one of the most confusing thing for Ontario business owners, and we should break it down here. 

Ontario BIN

Your Business Identification Number (BIN) is provided to you by the Ontario provincial government when you register a business name under the Business Names Act. The BIN is a nine-digit number that identifies the registration for your business name in Ontario’s registry.

You use your BIN when working on Ontario related issues: renewing registration, doing amendments, or checking the status of a business name.

CRA Business Number (BN)

Your CRA Business Number is a nine-digit number allocated by the Canada Revenue Agency (CRA) when you sign up for the following federal tax accounts: GST/HST, payroll, corporate income tax, and so on.. This is a federal identifier for use with taxes in Canada.

Your CRA BN remains the same no matter what happens to your Ontario business name registration. Even if you renew your Master Business License, your CRA business number and your HST/GST account number won’t change.

Why business owners confuse them

Both numbers are nine digits, and both belong to your business – so it’s very easy to confuse them! The main difference is the jurisdiction: your BIN is a provincial number for registering your business name in Ontario, your CRA BN is a federal number for tax purposes. 

If a bank requests your “business number” then it is most likely that they mean your CRA BN. If the Ontario Business Registry asks for your business identification number, they’re referring to your Ontario BIN.

If you are not sure about the number to provide, ask the agency or institution to specify.

Conclusion

Renewing your Master Business License in Ontario is one of those tasks that’s easy to do and easy to forget — until the consequences of forgetting make themselves felt. 

However, the steps are pretty straightforward: access the Ontario Business Registry, verify or correct your business details, pay the $60 government fee, and retrieve your renewed license. You can begin the renewal any time within a six-month period prior to your licensing expiration date, and it will then be valid for the next five years.

Why is renewal so critical? It’s not just the bureaucracy – but what it safeguards. An active registration preserves your business name, preserves your banking relationships and is consistent with Ontario law. Delaying renewal can cause unforeseen complications.

Most obvious tip: treat your registration expiry date like a bill due date. Set reminders, renew early, and move on. It might not seem like a big deal, but it safeguards a lot of work.