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Apply for a SIN

A Social Insurance Number (SIN) is a 9-digit number you need to work in Canada or access government programs and benefits.

When to apply

You must apply and provide all required documents (even if you already have a SIN) when you:

Who can apply

How to apply

Use the tool below to select your situation and how you want to apply. We’ll tell you exactly which documents you need and how to submit them.

  • You are applying for yourself

    Select your status in Canada

    • You are a Canadian citizen

      How would you like to apply?

      • Online
      • By mail
      • In person
    • You are a permanent resident

      How would you like to apply?

      • Online
      • By mail
      • In person
    • You are a temporary resident

      How would you like to apply?

      • Online
      • By mail
      • In person
    • You are an individual born outside Canada who is registered under the Indian Act

      How would you like to apply?

      • Online
      • By mail
      • In person
    • You are an individual residing outside Canada with no legal status in Canada

      How would you like to apply?

      • Online
      • By mail
      • In person
  • You are a parent or legal guardian applying on behalf of a minor or a dependent adult child

    Select your status in Canada

    • You are a Canadian citizen

      Select the child’s status in Canada

      • The child is a Canadian citizen

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is a permanent resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is a temporary resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is an individual born outside Canada who is registered under the Indian Act

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is an individual residing outside Canada with no legal status in Canada

        How would you like to apply?

        • Online
        • By mail
        • In person
    • You are a permanent resident

      Select the child’s status in Canada

      • The child is a Canadian citizen

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is a permanent resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is a temporary resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is an individual born outside Canada who is registered under the Indian Act

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is an individual residing outside Canada with no legal status in Canada

        How would you like to apply?

        • Online
        • By mail
        • In person
    • You are an individual born outside Canada who is registered under the Indian Act

      Select the child’s status in Canada

      • The child is a Canadian citizen

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is a permanent resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is a temporary resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is an individual born outside Canada who is registered under the Indian Act

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is an individual residing outside Canada with no legal status in Canada

        How would you like to apply?

        • Online
        • By mail
        • In person
    • You are a temporary resident

      Select the child’s status in Canada

      • The child is a Canadian citizen

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is a permanent resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is a temporary resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is an individual born outside Canada who is registered under the Indian Act

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The child is an individual residing outside Canada with no legal status in Canada

        How would you like to apply?

        • Online
        • By mail
        • In person
  • You are a legal representative applying on behalf of someone else

    Select the represented person’s status in Canada

    • The represented person is a Canadian citizen

      How would you like to apply?

      • Online
      • By mail
      • In person
    • The represented person is a permanent resident

      How would you like to apply?

      • Online
      • By mail
      • In person
    • The represented person is a temporary resident

      How would you like to apply?

      • Online
      • By mail
      • In person
    • The represented person is an individual born outside Canada who is registered under the Indian Act

      How would you like to apply?

      • Online
      • By mail
      • In person
    • The represented person is an individual residing outside Canada with no legal status in Canada

      How would you like to apply?

      • Online
      • By mail
      • In person
  • You are a legal representative of an estate requesting a confirmation of SIN for a deceased person

    Select your status in Canada

    • You are a Canadian citizen

      Select the deceased person’s status in Canada

      • The deceased person was a Canadian citizen

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was a permanent resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was a temporary resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was an individual born outside Canada who is registered under the Indian Act

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was an individual residing outside Canada with no legal status in Canada

        How would you like to apply?

        • Online
        • By mail
        • In person
    • You are a permanent resident

      Select the deceased person’s status in Canada

      • The deceased person was a Canadian citizen

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was a permanent resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was a temporary resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was an individual born outside Canada who is registered under the Indian Act

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was an individual residing outside Canada with no legal status in Canada

        How would you like to apply?

        • Online
        • By mail
        • In person
    • You are a temporary resident

      Select the deceased person’s status in Canada

      • The deceased person was a Canadian citizen

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was a permanent resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was a temporary resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was an individual born outside Canada who is registered under the Indian Act

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was an individual residing outside Canada with no legal status in Canada

        How would you like to apply?

        • Online
        • By mail
        • In person
    • You are an individual born outside Canada who is registered under the Indian Act

      Select the deceased person’s status in Canada

      • The deceased person was a Canadian citizen

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was a permanent resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was a temporary resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was an individual born outside Canada who is registered under the Indian Act

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was an individual residing outside Canada with no legal status in Canada

        How would you like to apply?

        • Online
        • By mail
        • In person
    • You are an individual residing outside Canada with no legal status in Canada

      Select the deceased person’s status in Canada

      • The deceased person was a Canadian citizen

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was a permanent resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was a temporary resident

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was an individual born outside Canada who is registered under the Indian Act

        How would you like to apply?

        • Online
        • By mail
        • In person
      • The deceased person was an individual residing outside Canada with no legal status in Canada

        How would you like to apply?

        • Online
        • By mail
        • In person

There is no fee to apply for a SIN.

Apply online for faster processing, make sure you have the required documents ready, and protect your SIN as soon as it is issued.

When applying online

Correcting an error in your application

If you made a mistake or forgot a document, you cannot go back to your application and must:

Registering a newborn

If your child is under one year old and you haven‘t registered their birth, you can apply for their SIN through your province‘s Newborn Registration Service.

This service is available in all Canadian provinces but not yet in the Territories.

If you live in a Territory, you can apply for your child‘s SIN directly through Service Canada.

To register your child‘s birth and apply for your child‘s SIN, visit your provincial government‘s website

Contact us

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2026-05-13