Quick reference - Bring original primary identity and legal-status documents (no photocopies). - SIN is free — never pay a fee to Service Canada ($0). - SIN is nine digits; temporary SINs start with the digit 9 and include an expiry date that matches your work permit. - Apply online, by mail, or in person at a Service Canada centre. Use https://www.canada.ca/sin to start.

Why the right documents matter

If you want to work, file taxes, or get some government benefits in Canada in 2026, you need to get a Social Insurance Number (SIN). But Service Canada requires original documents that prove who you are and your legal status here. Bring the wrong paperwork and you’ll waste time — or have to come back with originals. So this checklist makes sure you leave the house ready.

Service Canada gives you a nine-digit SIN, and for most Canadians, it stays the same for life. For temporary residents who are authorized to work, SINs issued after the mid-1990s usually start with the digit 9 and carry an expiry date that matches the employment authorization. That expiry is enforced for payroll and tax purposes, so having the correct original document matters.

Prerequisites

Check these things before you gather your documents—it can save you an extra trip.

  • Know your immigration or citizenship status: Canadian citizen, permanent resident, temporary resident with work authorization, refugee claimant, or dependant. That determines which primary documents you must bring.
  • Decide how you’ll apply. In 2026 you can apply online, by mail or in person at a Service Canada centre. Applying online usually goes fastest if you can upload clear digital copies.
  • Service Canada accepts originals for in-person and often requests originals by mail. They don’t accept ordinary photocopies as proof of primary identity.
  • Getting a SIN or a replacement confirmation letter doesn’t cost anything. If anyone asks for money to issue a SIN, that’s a red flag.
  • Have supporting documents ready: a secondary ID (driver’s licence, provincial health card), proof of address (utility bill, lease), and, if applicable, legal name-change documents. These aren’t always mandatory, but they speed up verification.
  • If you go in person, you can often get your SIN confirmation letter the same day. Online applications are often processed within about 10 business days; mail can take 4–6 weeks. Times vary by volume and location.

Step-by-step: What to bring (by status)

Below are the typical primary documents you must bring. Secondary documents are sometimes useful — see notes after the lists. Make sure to bring original documents. If you only have certified copies, check Service Canada’s website first.

Mastheads

If you’re a Canadian citizen:

  1. Original Canadian birth certificate — long-form birth certificate preferred, showing parentage if needed. This is accepted for newborns and adults born in Canada.
  2. Canadian passport (valid) — accepted as primary ID.
  3. Certificate of Canadian citizenship (paper certificate or citizenship card).

If you’re a permanent resident:

  1. Permanent Resident (PR) Card — valid PR card is the simplest primary document.
  2. Confirmation of Permanent Residence (IMM 529 or IMM 5688) — accepted in combination with another valid photo ID if you don’t yet have a PR card.

If you’re a temporary resident with work authorization:

  1. Valid work permit issued by Immigration, Refugees and Citizenship Canada (IRCC) that explicitly authorizes employment in Canada. The SIN issued will start with the digit 9 and have an expiry date that matches the work permit.
  2. If you’re a study-permit holder with on-campus work or co-op authorization, bring the study permit showing employment authorization or an IRCC letter that confirms work permission.

Frankly, if you’re a refugee claimant or protected person:

  1. Documentation from IRCC or the Canada Border Services Agency (CBSA) that shows your status and work authorization, plus a valid photo ID.

If you’re applying for a child or dependent:

  1. Child’s original birth certificate showing parentage. If the child was born outside Canada, bring a Canadian passport for the child or the original citizenship documentation, if available.
  2. Parent or guardian must bring their own primary ID (passport, driver’s licence) and proof of guardianship if the parent’s name doesn’t match the child’s.

If your name has changed: bring legal name-change documents — a marriage certificate, change-of-name certificate, or court order — plus at least one piece of current photo ID in the new name.

Step-by-step: How to apply (online, in person, by mail)

Follow these steps to complete the application smoothly.

1. Online application (fastest if you can scan)

  1. Head to https://www.canada.ca/sin and pick the online application. You’ll sign in with a GCKey or a bank login, which are common in 2026.
  2. Complete the online form and upload clear digital scans or photos of your original documents. Files should be legible, in accepted formats (JPEG, PNG, PDF) and under the size limit shown on the portal.
  3. Submit your form. If it’s approved, Service Canada usually sends a digital confirmation or mails a letter within about 10 business days.

2. In person at a Service Canada centre

  1. Find a location: use the Service Canada office locator from the main SIN page or go to the Service Canada locations section on canada.ca.
  2. Bring originals of the primary documents listed above. Bring a secondary ID and proof of address if you have it — it helps staff confirm details quickly.
  3. At the counter, staff will verify originals and can usually provide a printed SIN confirmation letter the same day. No payment is required.

3. By mail

  1. Use the mail application option on https://www.canada.ca/sin and follow instructions to include photocopies or originals as requested. Historically Service Canada may request originals for verification and will return them by registered mail; include a return envelope and tracking if instructed.
  2. Mail processing typically takes longer — plan for 4–6 weeks. Keep copies of your application and courier/tracking receipts.

Tips to speed up the visit

  • Bring two forms of ID when possible: one primary (passport, birth certificate) and one secondary with photo (driver’s licence, provincial ID). That reduces back-and-forth.
  • If you’re applying for a child, bring a document that proves your relationship — the long-form birth certificate or adoption order is best.
  • Check document expiry dates. If your work permit or passport expires within 30 days, staff may refuse to issue a SIN or may issue a SIN with a short expiry — renew first if possible.
  • Photograph or securely store your SIN confirmation once issued. Service Canada no longer issues plastic cards; they provide a confirmation letter. Keep that letter in a safe place and don't share your SIN except when legally required (employer payroll, CRA, financial institutions in specific cases).
  • If you need a replacement confirmation letter, request it online via your account on canada.ca or visit a Service Canada centre — cost: $0. Processing time can be a few days to a couple of weeks depending on method chosen.

Common mistakes to avoid

  • Bringing photocopies instead of originals — Service Canada usually won’t accept them as primary proof.
  • Using a study permit without explicit work authorization to apply for a SIN — that’s a frequent source of refusal. Confirm the permit says you can work or that you have a co-op/internship authorization.
  • Paying for a SIN — never pay. SINs and replacement confirmation letters are free ($0). If a third party charges a fee, that’s optional help, not required by Service Canada.
  • Sharing your SIN widely. Employers need it for payroll and the Canada Revenue Agency (CRA) needs it for taxes. But don’t give it to private parties or post it online — identity fraud risk is real.
  • Assuming an expired supporting ID is fine. Expired passports or permits can cause rejection. Renew before applying if possible.

Related Articles

If you bring the correct original documents and follow the steps above, getting a SIN in Canada in 2026 is straightforward and free. Use the official Service Canada SIN page at https://www.canada.ca/sin to start an online application, check the latest document lists, and find an office near you.

This article was created with AI assistance.