Both Interac online and e-transfer deal with your bank account directly, but are slightly different. Interac online is linked to your bank account through a third-party web browser window where you will complete your transaction. This option is only supported by Royal Bank of Canada (RBC), TD Canada Trust, First Nations Bank, and most credit unions. Interac e-transfer deposits are processed directly from your bank’s webpage just as you would send an e-transfer to a friend. This option is supported by all Canadian banks and credit unions.