Whether IELTS is required for a Canadian study permit depends on which application stream you're using:
- Student Direct Stream (SDS) applications: IELTS is mandatory — there's no substitute accepted for SDS processing.
- Non-SDS applications: IELTS is not mandatory, but having a recognized English language score still helps strengthen the overall profile in terms of demonstrating English proficiency.
- Existing certificates like CAE (Certificate in Advanced English) or CPE (Certificate of Proficiency in English) can support your English proficiency case for a non-SDS study permit application, even without an IELTS score.
Bottom line: if going the SDS route, IELTS is required regardless of other certificates; if going non-SDS, existing certificates like CAE/CPE can help support your application in place of IELTS.