Version 2025.2(2023/01/01 - 2026/05/31) will be available in the week of October 21st.

EFILE services will be temporarily unavailable from Friday, October 17, 2025, at 11:00 p.m. eastern time until Monday, October 20, 2025, at 6:00 a.m. eastern time.


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NAICS Codes

Please visit Statistics Canada for the details of North American Industry Classification System (NAICS) Codes.