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How to Contact Bank of Montreal Customer Service?

    Bank of Montreal offers customer service support to help you with any questions or concerns you may have. While the following contact information is provided, it is important to note that additional support may be available for specific needs.

    For general inquiries, call the customer service number at 1 (877) 345-7777 or email [email protected]. For French-speaking account holders, contact BMO via email at [email protected]. Mandarin-speaking account holders can call 1 (800) 665-8800.

    If you need to contact Bank of Montreal’s technical support team, please call 1 (877) 226-2666. For fraud or suspicious activity on your account, please call 1 (888) 7-STOPIT (1-888-778-6748) or send an email to [email protected].

    For TTY account holders, call 1 (866) 889-0889. If you have specific questions about your credit card, contact customer care at 1 (800) 363-9992. If your debit card has been lost or stolen, contact BMO immediately at 1 (877) 225-5266.

    If you require customer care regarding your Bank of Montreal MasterCard, there are different toll-free numbers to use if you need to speak with someone in person.

    1 (800) 263-2263 is for all standard customer care needs. For TTY BMO MasterCard customers, call 1 (866) 859-2089. To report lost or stolen BMO MasterCards in Canada or the US, call 1 (800) 361-3361.

    It is also important to note that each customer service channel may have different hours of operation, and specific requirements or documentation may be needed to complete certain types of requests. Therefore, it is recommended to check with Bank of Montreal’s official website or customer service channels for more information on these details.

    For more information and to access additional customer support resources, please visit the Bank of Montreal website at


    Christopher - BSc, MBA

    With over two decades of combined Big 5 Banking and Agency experience, Christopher launched Underbanked® to cut through the noise and complexity of financial information. Christopher has an MBA degree from McMaster University and BSc. from Western University in Canada.

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