The minimum IELTS band required for Canada immigration varies depending on the immigration program you are applying for. Generally, most economic immigration programs, such as Express Entry, require a minimum of 6.0 to 7.0 in each language skill (Reading, Writing, Speaking, and Listening). However, higher scores may improve your chances of receiving an invitation to apply. It is crucial to check the specific requirements for the program you are interested in, as they can change over time.