How to Apply for a SIN
Application Methods
| Method | Processing Time | Where | Best For |
|---|---|---|---|
| In person | Immediate (same day) | Any Service Canada Centre | Fastest option; newcomers |
| Online | 5–10 business days | My Service Canada Account | Canadian-born citizens with existing MSCA account |
| By mail | 15–20 business days | Service Canada SIN Program | If you cannot visit in person |
Required Documents
| Applicant Type | Primary Document Needed |
|---|---|
| Canadian-born citizen | Birth certificate (provincial) |
| Naturalized citizen | Canadian citizenship certificate or card |
| Permanent resident | Permanent Resident Card (PR card) or Confirmation of PR |
| Temporary worker | Valid work permit + passport |
| International student | Valid study permit (with work authorization) + passport |
| Refugee/protected person | Refugee protection claimant document (IMM 1442) |
Only ONE primary document is required. It must be an original (not a photocopy).
In-Person Application: Step by Step
| Step | Action | Details |
|---|---|---|
| 1 | Find a Service Canada Centre | Use servicecanada.gc.ca to locate one near you |
| 2 | Bring your primary document | Original document (see table above) |
| 3 | Visit during business hours | Most centres: Mon–Fri, 8:30am–4:00pm |
| 4 | Complete the application | Staff will help you fill out the form |
| 5 | Receive your SIN | Issued on the spot; printed on a confirmation letter |
No appointment needed. Wait times vary — arrive early for shorter waits.
SIN Numbers Explained
| SIN Starting Digit | What It Means |
|---|---|
| 1 | Atlantic provinces (NB, NS, PE, NL) |
| 2–3 | Quebec |
| 4–5 | Ontario |
| 6 | Prairie provinces (MB, SK, AB, NT, NU) |
| 7 | Pacific (BC, YT) |
| 9 | Temporary residents (work/study permit holders) |
SINs starting with “9” expire when your permit expires. You must apply for a new SIN or update when you receive a new permit or become a permanent resident.
SIN for Newcomers to Canada
| Status | When to Apply | What You Get |
|---|---|---|
| Permanent resident | As soon as you land and have your PR card | Permanent SIN (does not expire) |
| Temporary worker | After arriving with valid work permit | Temporary SIN (starting with 9) |
| International student | After arriving with valid study permit | Temporary SIN (starting with 9) |
| Refugee claimant | After receiving IMM 1442 document | Temporary SIN (starting with 9) |
| Spouse on open work permit | After receiving open work permit | Temporary SIN (starting with 9) |
When You Need Your SIN
| Situation | Required? | Who Asks |
|---|---|---|
| Starting a new job | Yes | Employer (for payroll and tax) |
| Filing a tax return | Yes | CRA |
| Opening a bank account | Yes | Bank (for tax reporting) |
| Applying for government benefits (EI, CCB, CPP, OAS) | Yes | Service Canada / CRA |
| Opening a TFSA, RRSP, RESP | Yes | Financial institution |
| Student loan application | Yes | Provincial student aid |
| Applying for a credit card | Not always | Some issuers request it |
Protecting Your SIN
| Do | Don’t |
|---|---|
| Memorize your SIN | Don’t carry the confirmation letter in your wallet |
| Store the letter in a safe place at home | Don’t share your SIN unless legally required |
| Verify why someone is asking before providing it | Don’t give your SIN over email or text |
| Report a lost or stolen SIN to Service Canada | Don’t post your SIN online or on social media |
| Check your credit report regularly | Don’t give your SIN to a landlord (not required by law) |
What If Your SIN Is Compromised?
| Action | How |
|---|---|
| Report to Service Canada | Call 1-866-274-6627 or visit a centre |
| Report to Equifax | Call 1-800-465-7166 or online |
| Report to TransUnion | Call 1-800-663-9980 or online |
| Report to Canadian Anti-Fraud Centre | Call 1-888-495-8501 |
| Monitor your credit | Check credit reports from both bureaus |
| Consider a fraud alert | Both Equifax and TransUnion offer fraud alerts |