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Ready to start your journey with Allegiance Bank? Have questions? Just want
to chat? Connect with us, because we want to connect with you.


Immediate Assistance

Phone: 281-894-3200*

*Speak with a representative on your time: Now offering extended after-hours support.

Mailing Address:
PO Box 41314
Houston, TX 77241-1314

Email: customerservice@allegiancebank.com

PLEASE NOTE: Allegiance Bank will never request that you provide personal or financial information via unsecured e-mail. Please report to us any suspicious e-mails you receive that request personal or financial information and claim to be from Allegiance Bank.

24/7 Telephone Banking:  844-334-3814

Debit/ATM Card Support
Business Hours 8:00 AM - 5:00 PM: 281-894-3200

To report your lost or stolen Debit/ATM Card after business hours: 800-500-1044

For Debit Card Transaction Disputes Only:
Monday - Friday 7:00 AM - 3:45 PM: 844-865-5533

To activate a Debit Card: 866-633-5293 or Internationally: 770-248-5774

To return Fraud Service Center phone calls to verify potentially fraudulent transactions: 800-369-4887


Traveling with your debit card outside of Texas?

Before you leave, please contact your Allegiance Banker at 281-894-3200 during normal business hours to inform us of your destinations and travel dates. This will provide us an opportunity to update your debit card record to ensure you will not be inconvenienced while traveling.

 


Consumer Concerns

We pledge to provide extraordinary service. We welcome the opportunity to address any of your concerns. We encourage you to contact us by emailing  consumer.concerns@allegiancebank.com.

 


Find an Office Near You

Allegiance Bank serves the Houston community and surrounding counties through conveniently-located banking offices. To find a location near you, click below.

Post Oak Bank Merger

If you have questions about the completed merger, please email customerservice@allegiancebank.com or call 281-894-3200.

 


 

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