The Social Insurance Number (SIN) is a nine-digit identifier essential for working in Canada, accessing government benefits, filing taxes, and more. If you’re applying for a SIN for the first time whether as a new resident, citizen, or temporary worker understanding the process ensures a smooth start. As of October 31, 2025, applications can be submitted online, by mail, or in person, depending on your situation. At worldbridge, we support international students and immigrants with settlement services, including guidance on essential documents like the SIN to help you thrive in Canada. Here’s everything you need to know to apply for a new SIN. Eligibility for a New SIN You qualify for a new SIN if you’re applying for the first...