
International students in Canada need a Social Insurance Number (SIN) to work and get paid in Canada, as well as to access government programs and benefits. A SIN is a unique nine-digit number that is issued free of charge by Service Canada, a government agency. International students can apply for a SIN online, by mail, or in person at a Service Canada office. To apply, students need to provide a valid study permit document indicating authorization to work in Canada, as well as proof of a Canadian residential address. In this paragraph, we will explore the process of how international students can obtain a SIN in Canada.
| Characteristics | Values |
|---|---|
| What is a SIN? | A Social Insurance Number (SIN) is a unique 9-digit number issued by the Canadian government that is required to work and be paid in Canada, as well as to access government programs and benefits. |
| Who needs a SIN? | International students who wish to work in Canada must obtain a SIN. |
| How to apply for a SIN? | International students can apply for a SIN online, by mail, or in person at a Service Canada office. It can also be obtained at the airport on arrival, according to certain timetables. |
| What are the requirements for applying for a SIN? | To apply for a SIN, international students need a valid study permit document indicating authorization to work in Canada, as well as proof of Canadian residential address. |
| Is there a fee for applying for a SIN? | There is no fee for first-time applications or for extending a SIN. |
| When to apply for a SIN? | It is recommended to apply for a SIN before starting work or up to three days after the start date. |
| What happens if the study permit does not indicate authorization to work? | If the study permit does not indicate authorization to work, students must submit a request for an amendment before applying for a SIN. There is no fee for this request, and the current processing time is 20 weeks. |
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What You'll Learn

Eligibility criteria for a SIN
International students in Canada need a Social Insurance Number (SIN) to work and get paid in Canada, as well as to access government programs and benefits. It is also used for tax purposes. SIN is a unique nine-digit number that is issued free of charge by Service Canada, a government agency.
- International students must be residing in Canada to be eligible for a SIN.
- A valid study permit document (not study permit approval) is required for the SIN application. The study permit must indicate that the student is authorized to work in Canada.
- In addition to the study permit, international students must provide proof of a Canadian residential address.
- Students must also provide a passport or work permit.
- Students registered in a research-based program who are receiving financial assistance from their supervisor must also provide their SIN to the appropriate department to receive payments.
It is important to note that a valid SIN does not automatically make an international student eligible to work on or off-campus. Students must still meet the eligibility requirements to work legally in Canada. Additionally, the SIN will expire on the date indicated in the "expires on" field of the letter, which is usually based on the expiry of the student's status document or study permit.
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Required documents for a SIN
International students in Canada require a Social Insurance Number (SIN) to work and receive government benefits. SIN is a nine-digit number that indicates the holder's status as a temporary resident in Canada.
- A passport, study permit, or work permit.
- Proof of Canadian residential address.
- Original documents in English or French. If the document is in another language, it must be translated and accompanied by an attestation or affidavit from the translator.
- Primary identity document: This could be a birth certificate, a certificate of Canadian citizenship, or a certificate of registration of birth abroad. Most birth certificates are acceptable, but some may not meet the requirements, so a review by the SIN program is necessary.
- Verification of Landing or Status Verification/Verification of Status issued by IRCC or CIC. These documents are acceptable for amending a SIN record or confirming an existing SIN.
- Study permit indicating the holder "may accept employment" or "may work" in Canada. If this requirement is not met, IRCC can be contacted to verify eligibility for an amended study permit.
- Visitor record issued by IRCC or CIC, authorising work in Canada.
- Diplomatic identity card and work authorisation issued by the Department of Foreign Affairs, Trade and Development.
- Legal change of name certificate or court order document, if applicable.
- Adoption order certified by a Canadian court or a notarial adoption certificate issued by the country of origin for international adoptions.
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Applying for a SIN online
International students in Canada need a Social Insurance Number (SIN) to work, get paid, and access government programs and benefits. A SIN is a unique nine-digit number issued free of charge by Service Canada, a government agency.
If you are an international student, you can apply for a SIN online through the Service Canada website. Here is a step-by-step guide to applying for a SIN online:
Step 1: Check Your Eligibility
Before starting your application, ensure you have received your study permit. You must have a valid study permit document (not just study permit approval) to apply for a SIN. Your study permit must also indicate that you are authorized to work in Canada. If your study permit does not include this authorization, you must submit a request for an amendment before applying for a SIN.
Step 2: Gather Required Documents
To apply for a SIN, you will need to provide copies of specific documents. The primary document is your study permit, which must indicate that you are authorized to work on and off campus. Alternatively, you can provide a work permit, such as a co-op work permit. Additionally, you will need to provide proof of your Canadian residential address.
Step 3: Complete the Online Application
Visit the Service Canada website to access the online application portal. The eSIN portal offers a secure environment where you can complete your SIN application form and upload digital copies of your documents.
Step 4: Await Processing and Confirmation
Once you have submitted your application, you will receive a confirmation email. If your application meets all the requirements, you will receive another email notifying you that your application has been processed. You can expect to receive a letter with your SIN within 15 business days from the date your application was received.
It is important to note that during the COVID-19 pandemic, international students were required to apply online for their SIN inside Canada. Usually, you can also apply for a SIN in person at a Service Canada Centre or by mail.
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Applying for a SIN by mail
International students in Canada need a Social Insurance Number (SIN) to work, get paid, and access government programs and benefits. A SIN is a unique nine-digit number issued free of charge by Service Canada, a government agency.
To apply for a SIN by mail, you must submit a completed SIN application form and all required documents to the Social Insurance Registration Office. Service Canada will return your documents by mail once your application is complete, but they are not responsible for documents lost in the mail.
The SIN required documents page has detailed information about all the required documents, examples, translation requirements, and useful links. Generally, you will need to provide copies of several documents, including a valid study permit document (not study permit approval) indicating authorization to work in Canada, or a work permit. If you are applying by mail, you may also need to include a copy of your original admission letter and proof of enrolment.
Processing times for SIN applications vary depending on the application method. If you apply online, you will receive a letter by mail with your SIN within 15 business days from the date your application was received. If you apply in person at a Service Canada Centre, processing is instant. Processing times for applications submitted by mail are not mentioned, but you can contact the SIN Program or the Employment & Development Canada helpline for more information.
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Applying for a SIN in person
International students in Canada need a Social Insurance Number (SIN) to work, get paid, and access government programs and benefits. A SIN is a unique nine-digit number issued free of charge by Service Canada, a government agency.
To apply for a SIN in person, international students need to visit a Service Canada Centre with their original documents and provide proof of their Canadian residential address. Students can locate the nearest Service Canada Centre and its hours of operation by visiting the Service Canada website. It is also possible to apply in person at SIN Clinics hosted on campus.
The following documents are required to apply for a SIN in person:
- A valid study permit document (not study permit approval) indicating authorization to work in Canada.
- A passport, study, or work permit.
- Proof of Canadian residential address.
It is important to note that a SIN alone does not automatically make an international student eligible to work on or off-campus. Students must still meet the eligibility requirements to work legally in Canada. Additionally, international students' SINs will begin with the number "9", indicating to employers that they are temporary residents in Canada.
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Frequently asked questions
SIN stands for Social Insurance Number. It is a nine-digit number that you need to work (and get paid) in Canada. It is also used for tax purposes and to access government programs and benefits.
International students can apply for a SIN online, by mail, or in person at a Service Canada Office. During Covid, only online applications were accepted.
You will need a valid study permit document (not study permit approval) indicating authorization to work in Canada, as well as a passport, and proof of Canadian residential address.
You may apply for a SIN before you start working or up to three days after your start date.
There is no charge for first-time applications.
















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