New to Thunder Bay? How to apply for a Social Insurance Number in Canada

For international students, workers and new permanent residents settling in Thunder Bay, obtaining a Social Insurance Number (SIN) is an important administrative step. The nine-digit number is used for employment and access to certain government benefits. A SIN does not itself grant permission to work: your immigration documents must authorize employment.

Service Canada accepts applications online, by mail or in person. The official process is free. You must supply identity and status documents that match your circumstances; permanent residents and temporary residents have different requirements. The government no longer issues plastic SIN cards.

For temporary residents, a SIN beginning with 9 normally expires on the same date as the immigration document authorizing work. When a new eligible permit is issued, the SIN record should be updated. A study permit must include authorization to work for a student to qualify under that category.

Residents who already have a SIN may be able to view or print it through My Service Canada Account instead of applying again. Keep the number confidential and avoid websites that charge to submit a government SIN application.

Official information: Service Canada — Apply for a SIN; required documents; temporary residents.