Since the official merger with BMO (Bank of Montreal), all Bank of the West accounts have been successfully migrated. If you are searching for the Bank of the West customer service number, you must now use the BMO support infrastructure. Whether you need to activate a new BMO debit card, report fraud, or manage your mortgage, using the direct department lines below is the fastest way to get help.
Bank of the West (BMO) Customer Service Number List
As of 2026, the following contact numbers are the primary lines for all legacy Bank of the West customers:
| Support Department | Phone Number |
|---|---|
| Main Customer Service (General Banking) | 1-888-340-2265 |
| BMO Credit Card Support (Personal) | 1-855-825-9237 |
| BMO Business Platinum Credit Cards | 1-855-825-9231 |
| Mortgage Customer Service | 1-888-482-3781 |
| Report Fraud or Identity Theft | 1-888-340-2265 |
| International Support (Outside U.S.) | +1-847-238-2265 |
| BMO Investment Services | 1-800-361-1392 |
Note: Most Bank of the West branches now operate under the BMO logo. Your legacy account and routing numbers have likely been updated to BMO formats.
Visit Official BMO/Bank of the West Contact Page
How to Talk to a Live Person at Bank of the West (BMO)
Reaching a human agent at a large institution like BMO can be tricky. Follow these steps to bypass the automated system:
- Dial 1-888-340-2265.
- When the automated system asks for your reason for calling, say "Representative" or "Agent."
- If prompted for an account number you don't have, wait for the second prompt or press "#".
- Best Time to Call: Mid-week (Tues-Thurs) between 8:00 AM and 10:00 AM CT to avoid the highest call volumes.
BMO Bank (Legacy Bank of the West) Support Hours
- General Banking: Mon–Fri 7:00 AM – 11:00 PM CT; Sat–Sun 8:00 AM – 10:00 PM CT.
- Credit Card Services: Available 24/7.
- Mortgage Services: Mon–Thu 8:00 AM – 7:00 PM; Fri 8:00 AM – 6:00 PM; Sat 8:00 AM – 1:00 PM CT.
You may also find helpful support pages for other banking and financial services.
Explore additional customer support guides for related services.
Common Issues for Bank of the West Customers
- New BMO Debit Card Activation: If you recently received a BMO card to replace your Bank of the West card, call 1-888-340-2265 for 24/7 activation.
- BMO Digital Banking Access: If you are having trouble logging into the new BMO app with your old Bank of the West credentials, you may need to re-enroll or reset your password via technical support at 1-888-340-2265.
- Routing Number Changes: The routing number for all BMO personal bank accounts is now 071025661.
Frequently Asked Questions (FAQ)
What is the Bank of the West customer support number?
Since the merger, the official customer support number is 1-888-340-2265. This line handles general banking, debit card issues, and fraud reporting.
Can I still use my Bank of the West checks?
Yes, legacy Bank of the West checks will continue to be honored for a period, but it is recommended to order new BMO checks through your online portal as soon as possible.
Is Bank of the West customer service 24/7?
Live agent support for general banking is available during extended hours (until 11 PM CT), but 24/7 support is reserved for card activations, password resets, and reporting lost or stolen cards.
