Select the guide you need and get the right SIN instructions fast ⤵️
If your immigration status in Canada has changed, or you recently received a new work or study permit, it’s time to review your SIN.
This article explains how to renew your SIN in Canada, when updates are mandatory, and how to avoid issues that could delay your ability to work legally.
When you must update your SIN
If you hold a temporary SIN — a number that begins with “9” — you must renew or update it every time your immigration document changes. This includes:
- A new study or work permit
- A change in your immigration status (e.g., becoming a permanent resident)
- A legal name change
The expiry date on your SIN record must always match the expiry date on your current IRCC permit. While your SIN number itself usually stays the same, the validity must be updated to reflect your most recent status.
👉 You can apply to update your SIN through Service Canada, and the process is free.
The difference between data update and SIN extension
There are two common types of updates to a SIN record:
- Data update: When you change personal details such as your name or gender marker, but your immigration status remains unchanged.
- SIN extension: When you receive a new immigration document with a new expiry date and must update your SIN accordingly.
📢 In both cases, you must submit a new SIN application with the updated documents. Your SIN number only changes if you become a permanent resident or citizen — in that case, a new number (not beginning with “9”) is issued.
Required documents to renew a temporary SIN
To renew or update your temporary SIN, you must submit:
- Your new work or study permit (must clearly state your right to work)
- A government-issued photo ID, such as a passport
- A supporting document, if your current legal name is different from your primary ID
Documents must be in English or French. If not, you’ll need to include a certified translation along with the original document.
Applications can be submitted:
- Online via Service Canada’s SIN portal
- In person at a Service Canada Centre
- By mail, if online or in-person options aren’t available
What happens to your SIN during implied status periods
If you applied to renew your permit before it expired and are waiting for a decision from IRCC, you’re considered to be on maintained status (previously called implied status).
During this period:
- You may continue working legally, even if your SIN is expired
- You must remain in Canada to maintain this right
- Service Canada will not update your SIN until IRCC issues your new permit
⚠️ Important: Once you receive the physical copy of your new document, you must apply to update your SIN expiry date. A confirmation email from IRCC is not sufficient — the official permit is required.
Example cases: student to PGWP, worker to PR
📖 Student to Post-Graduation Work Permit (PGWP)
After graduation, when a student receives a PGWP, they must apply to extend their SIN. The number remains the same (still starts with “9”), but the new expiry date must match the PGWP.
👷 Worker to Permanent Resident
When you become a permanent resident, you must request a new SIN. This new SIN will not begin with “9”. Service Canada will inform the CRA and pension authorities of the change, but you must notify:
- Your employer
- Your bank
- Any government program using your SIN
🚨 Destroy your old SIN confirmation once your new one is issued.
Checklist to prepare your application without delays
Here’s what to do before applying:
✅ Make sure you have received your new immigration document;
✅ Collect the following:
- Your new permit (study or work)
- Valid government-issued photo ID (passport)
- Supporting documents (if your name has changed)
✅ Translate any non-English/French documents with a certified translator;
✅ Decide how you’ll apply:
- Online (5 business days processing)
- In person (often same-day, with appointment)
- By mail (up to 20 business days)
✅ Ensure all documents are clear, legible, and valid;
✅ If applying online, use the official portal;
✅ Once updated, destroy any outdated SIN documents
Knowing how to renew your SIN in Canada is key to staying legally employed and avoiding administrative issues.
Whether your study permit just ended, or you’re transitioning to a post-graduation or work permit, aligning your SIN with your current status ensures uninterrupted access to work and government services.
Apply as soon as your new documents are ready, and always protect your SIN from unauthorized use.
