BMO Harris Help Page

BMO Harris Help Pages is the best option when trying to contact BMO Harris customer service. You can contact via BMO Harris Customer FAQ, Forum, and Online Help.

Contact BMO Harris Help @

Navigate to If you have a problem with BMO Harris services, click on this link or paste it into the search bar of your browser and hit enter to go to the page.

General Problems that BMO Harris Customers searching for

  • Account Access
  • Personal banking
  • Personal credit card
  • Mortgage
  • Loan or line of credit
  • Business Banking
  • Financial relief
  • Payment
  • Complaint
  • A Different issues

Contacting BMO Harris Help Pages

This is the official customer support page of BMO Harris, which contains different options for contacting them about a variety of issues.

If you are looking for BMO Harris’s best customer help page or FAQ or forum, this is the best entry point.

If that doesn’t work, contact BMO Harris directly by calling their customer service number at 1 (888) 340-2265.

BMO Harris Frequently Asked Questions

What can I do if my personal finances are impacted?
For loans and credit cards serviced by BMO, please call (866) 618-8686, Monday through Thursday 8:00 a.m. – 8:00 p.m. CT, Friday 8:00 a.m. – 5:00 p.m. CT, and Saturday 8:00 a.m. – 4:00 p.m. CT.
For loans serviced by DMI please contact BMO Harris DMI Customer Service at 855-290-4759, Monday through Friday 7:30 a.m. – 7:00 p.m. CT.

What is my BMO Harris routing number?
The routing number for all BMOB M O Harris personal bank accounts is 071025661.

How do I reach Customer Service?
For general banking service inquiries, please call us at 1-888-340-22651 within the U.S. and 1-847-238-22651 outside the U.S. Our customer care team is available from 7 a.m. to 10 p.m. CT Monday to Friday and 8 a.m. to 8 p.m. on Saturdays and Sundays. BMO Digital Banking password resets, reporting lost/stolen debit cards and debit card activations can be done 24 hours a day.

Where can I find more information about my debit card?
With the BMO Harris Bank Debit Mastercard®, you can: With the B M O Harris Bank Debit Mastercard footnote ®, you can:
Quickly make digital payments – it’s faster than paying with cash or a check
Pay no annual fee
Use it at millions of locations worldwide
Get more protection for your purchases at chip-enabled terminals
To see more Debit Mastercard® features, visit our Debit Card page.

Other Ways to Contact BMO Harris

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BMO Harris Customer Reviews

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 1 reviews
 by Denim on BMO Harris

I have had BMO checking , credit card, and money market access for 4 months and had more trouble with all than any previous banks over the past 50 years. Their credit card was always rejected due to fraud alerts. I get calls 1-2x daily about debit card fraud. I am on my third credit card and second debit because they shut them down constantly. I tore up the credit card because it was worthless...I am going back to Capital One Venture. Venture card the past 15 years without any of these problems. BMO phone staff are condescending and want me to give them my PIN over the way. I reported all of this to my local branch and they are nice, but cannot help me.