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BMO Harris

For easy access to account information or to transfer funds from your BMO Harris account, call your BMO Harris Bank by PhoneSM automated service at
888-340-2265. Available 24 hours a day seven days a week.

Personal Banking

Account specific questions:

BMO Harris Online Services:


Apply for a Credit Card:


BMO Harris Credit Card customer service:

New products and services:

1-888-340-2265 (24 hours a day)

For information regarding a mortgage application:

1-888-482-3781 Mon - Fri 8 a.m. - 6 p.m. (CT)

Para hablar con un representante bancario en español haz click aquí

Contact request form

Report a Lost or Stolen Card

Please call the appropriate number below to report a lost or stolen card.

ATM/Debit Cards


Credit cards

  • Diners Club US Cards
  • 1-800-2-DINERS (1-800-234-6377)

Other Cards

Servicemember's Civil Relief Act (SCRA)

Servicemember's Civil Relief Act (SCRA) - is a federal law that provides benefits and protections for military members as they enter active duty.

If you are an active duty member of the United States Military, you may be eligible for SCRA benefits and protections on the following products:

  • Line of credit, credit card, charge card, and installment loans
  • Mortgage and home equity secured loans

Note: Benefits and protections for servicemembers apply to both consumer and business loans.

To discuss eligibility and determine how BMO Harris Bank can help, please contact one of our SCRA Advocates at (262) 938-2668 or (262) 814-5801.

Wealth Management

BMO Private Bank:

Visit our website to arrange to speak with someone in your local office.

For BMO Private Bank Mastercard® Premier World Card

Contact Small Business Banking

Small Business Banking Services:

1-888-340-2265 (24 hours a day)

BMO Harris Credit Card customer service:

MasterCard BusinessCard® Credit Cards 1-877-605-5403

Apply for a Credit Card:


Contact request form 

Contact Commercial Banking

Commercial Banking Services

Click Here

Contact Investments

Already have a BMO Harris Financial Advisors account?

1-877-225-3863 Mon - Fri (excl. holidays) 8 a.m. - 5 p.m. (CT)

Interested in learning more about BMO Harris Financial Advisors?

1-888-360-6394 Mon - Fri (excl. holidays) 8 a.m. - 5 p.m. (CT)