Business · UPDATE
Business registration with a temporary SIN
CRA provides a registration route for Canadian residents with a temporary SIN starting with 9.
Use the correct registration route
CRA’s current business registration guidance includes Canadian residents whose temporary SIN begins with 9. Choose the resident registration instructions and review the information required before starting.
Protect your information
Enter identity details only through the official government service. Do not put a SIN in ADB Consulting LLP’s enquiry form. Non-residents should use the separate CRA non-resident registration instructions.
Official sources
Article reviewed September 13, 2026. Opens in a new tab.