Contact Us

For help with Direct Banking and BMO MasterCard:

Call 1-800-363-9992 if you are using a BMO Debit Card.

Call 1-800-263-2263 if you are using a BMO MasterCard.

To report a suspicious email or security concern:

If you suspect any suspicious activity, please contact us immediately:

In Canada, email us at online.fraud@bmo.com.

In the U.S., email us at bmoharris.phish@bmo.com or call 1-888-340-2265.

Note : Please do not include confidential or financial details.

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