Contact Us

Have a question? Just want to chat? We’re here for you, 24/7.

Phone
800-328-1935
TDD/TTY: 773-462-2300
International Calls:
773-462-2000
Email
For all general inquiries,
please send us an email.

For account-specific questions, please login to Alliant Online Banking and use secure e-mail or contact us at 800-328-1935 (24/7).

Mail
Alliant Credit Union
P.O. Box 66945
Chicago, IL 60666-0945