Opening a Bank Account

You can open a bank account as soon as you have the necessary documents. You don't need your carte de séjour.

DOCUMENT CHECKLIST FOR A BANK ACCOUNT

• Passport
• Lease agreement with your name or attestation d'hébergement. If you choose the latter, you should include a copy of your roomate's ID just to be safe and include one: EDF bill or phone bill for a landline or rent receipt (not more than three months old)
  
Note: not all banks accept the rent receipt so it is probably better if you can get one of the other pieces of accepted documentation.
• OR
if you have an EDF bill or a bill for a landline with your name on it.
• Student card
• (Bank statement showing activity for three months in Canadian bank account.
I don't think that all banks require this one).