1. Login to Online Banking
2. Select "Options" next to the account you want the void cheque for and select "Download Pre-Authorized Form"
These forms can be used in place of a void cheque. They include all the information you need to set up direct deposit or preauthorized withdrawal.
If you have cheques for your account write "VOID" across the cheque in large letters.
Be sure not to write over the coding at the bottom of the cheque.