How to Apply for a SIN Online

The Social Insurance Number (SIN) is one of the most important numbers you will receive in Canada. It is a nine-digit number that you need to work, file taxes, and access government programs and benefits. Whether you are a Canadian citizen, a permanent resident, or a temporary resident with a work permit, you will need a SIN. This guide explains how to apply for your SIN online and through other methods available through Service Canada.

What Is a Social Insurance Number?

A Social Insurance Number is a unique identifier issued by the Government of Canada. It was originally created for the administration of the Canada Pension Plan and Employment Insurance programs. Today, it is used for many purposes including working in Canada, filing income tax returns, accessing government benefits like Employment Insurance and Old Age Security, and opening a bank account or registered savings plan.

For a more detailed overview of the SIN and its role in your life in Canada, check out our comprehensive guide on how to apply for a SIN number in Canada.

Who Can Apply for a SIN?

The following people are eligible to apply for a SIN in Canada:

• Canadian citizens: Anyone born in Canada or who has obtained Canadian citizenship.
• Permanent residents: People who have been granted permanent resident status in Canada.
• Temporary residents: People with a valid work permit, study permit (with authorization to work), or other temporary resident document that authorizes them to work in Canada.

If you are a newcomer who has just arrived in Canada, applying for a SIN should be one of your first priorities. You can learn more about the services available to newcomers in our guide on how to use Service Canada as a newcomer.

Documents You Need to Apply

To apply for a SIN, you must provide one valid primary document that proves your identity and status in Canada. The type of document you need depends on your situation.

• Canadian citizens born in Canada: A provincial or territorial birth certificate, a certificate of Canadian citizenship, or a Canadian passport.
• Canadian citizens born outside Canada: A certificate of Canadian citizenship or a Canadian passport.
• Permanent residents: A permanent resident card or a Confirmation of Permanent Residence (IMM 5292 or IMM 5688).
• Temporary residents: A work permit, study permit with work authorization, or a visitor record with work authorization, along with a valid passport or travel document.

How to Apply for a SIN Online

Service Canada now offers an online application option for the SIN. Here is how to apply through the online SIN application service.

Step 1: Create or Sign Into My Service Canada Account

To apply online, you need a My Service Canada Account (MSCA). If you do not already have one, you will need to create one. You can sign in using a GCKey or a Sign-In Partner such as your bank. Creating an account requires you to verify your identity, which may take a few days if you are setting one up for the first time.

Step 2: Start the SIN Application

Once you are signed into MSCA, navigate to the SIN application section. The system will guide you through the application form, asking for your personal information including your full legal name, date of birth, gender, and place of birth.

Step 3: Upload Your Supporting Documents

You will need to upload clear, legible scans or photos of your primary identification document. Make sure the images are not blurry and that all information is readable. The system will specify which file formats and sizes are accepted.

Step 4: Review and Submit

Review all of the information you have entered to make sure it is correct. Once you submit the application, you will receive a confirmation. Service Canada will process your application and, if everything is in order, your SIN will be issued. You may receive it through your MSCA or by mail, depending on the current process.

Other Ways to Apply for a SIN

If you prefer not to apply online, you have two other options.

In person: Visit a Service Canada Centre near you. Bring your original primary document. A Service Canada officer will process your application and, in most cases, you will receive your SIN at the time of your visit.

By mail: Download and complete the SIN application form (NAS 2120), available on the Service Canada website. Mail the completed form along with your original primary document to the Service Canada address specified on the form. Your documents will be returned to you by mail after processing.

How Long Does It Take?

The processing time depends on how you apply. If you visit a Service Canada Centre in person, you will usually receive your SIN on the same day. If you apply by mail or online, processing typically takes about 20 business days from the date Service Canada receives your complete application and documents.

Protecting Your SIN

Your SIN is a confidential number. Protecting it is important because it can be used for identity theft. Here are some guidelines for keeping your SIN safe.

• Memorize your SIN and keep the paper or letter in a safe place. Do not carry it in your wallet.
• Only provide your SIN when required by law, such as for employment, tax purposes, or banking.
• Ask why your SIN is needed, what it will be used for, and who will have access to it before providing it.
• Never share your SIN by email or text message.
• If you believe your SIN has been compromised, contact Service Canada immediately.

SIN for Newcomers to Canada

If you are a newcomer, your SIN is one of the first things you should obtain after arriving. Many newcomers can begin the SIN application process as part of the immigration and arrival process. At some airports, there are Service Canada kiosks where you can apply for your SIN upon landing.

Having a SIN allows you to start working, open a bank account, and begin building your life in Canada. It is also essential when it comes time for filing your first Canadian tax return, as your SIN is used to identify you with the Canada Revenue Agency.

What to Do If You Lose Your SIN

If you have lost or forgotten your SIN, you can request a confirmation of your SIN by applying through the same channels described above. You will need to provide your primary identification document. Service Canada does not issue SIN cards anymore, but they can provide a confirmation letter with your SIN.

Updating Your SIN Record

If your personal information changes, such as your name after marriage or divorce, or if your immigration status changes, you should update your SIN record. You can do this by visiting a Service Canada Centre in person or by mailing the required documents and a completed application form.

Frequently Asked Questions

Is there a fee to apply for a SIN? No. Applying for a SIN is free of charge. Be cautious of any website or service that asks you to pay for a SIN application, as these are likely scams.

Can I apply for a SIN before I arrive in Canada? No. You must be in Canada or have arrived in Canada to apply for a SIN.

What if my SIN starts with a 9? A SIN beginning with 9 is issued to temporary residents. It has an expiry date that matches your work or study permit. You must renew it if your permit is extended.

Final Thoughts

Getting your Social Insurance Number is a straightforward process, whether you apply online, in person, or by mail. It is one of the most important steps you can take to start your life in Canada, as it opens the door to employment, government benefits, and financial services. Apply as soon as you are eligible and protect your number carefully throughout your life.

WelcomeAide is here to support newcomers navigating important life events in Canada. Use our AI Newcomer Navigator for personalized guidance, explore our blog for more newcomer resources, learn about our mission, or discover how to get involved in supporting newcomer communities across Canada.