Access your online account
Manage your card 24/7 from the comfort of your home, office, or anywhere else you have internet access.
Activate your card or add an authorized user
Once you've received your card, call us to activate it. Or if you would like to add an authorized user to an existing card or simply have a question, call us anytime – we're here to help.
Terms & Agreements
Take a look at the benefit guides, terms, conditions and agreements for the consumer card you've chosen. If your card is not listed, or you have a BMO Harris Business Mastercard or BMO Wealth Management Mastercard, please visit bmoharris.com/legal.
BMO Harris Consumer Credit Cards
BMO Harris Bank Platinum Mastercard®
BMO Harris Bank Platinum Rewards Mastercard®
BMO Harris Bank Cash Back Mastercard®
BMO Harris Bank Premium Rewards Mastercard®
Mastercard® is a registered trademark of Mastercard International Incorporated.