Alliant Credit Union Mailing Address

What is the Alliant Credit Union Mailing Address?

P.O. Box for Credit Card Payments
Alliant Credit Union P.O. Box 1666 Des Plaines, IL, 60017-1666

P.O. Box for Deposits and Loan Payments
Alliant Credit Union P.O. Box 2387 Des Plaines, IL, 60017-2387

Corporate offices:
(Not open to the public. No branches or ATMs.)
11545 W. Touhy Ave., Chicago, IL 60666

Where do I send checks payable to, or for deposit into, my Alliant Trust Account?

Mailing Address (U.S. Postal Service)
Alliant Credit Union
Attn: Special Services
P.O. Box 66945
Chicago, IL 60666-0945

Overnight Service
Alliant Credit Union
Attn: Special Services
11545 W. Touhy Avenue
Chicago, IL 60666

What is the Alliant Credit Union Phone Number?


International Calls

Lost or Stolen Card
Credit Card: 866-444-8529
ATM/Debit Card: 800-328-1935


For emergency issues, we recommend you call us right away. We are available 24/7.

How do I make a payment to Alliant Credit Union?

You can make a credit card payment any time by making a transfer in Alliant Online Banking, using Bill Pay, using the Alliant Mobile Banking App, or by calling us at 800-328-1935 (24/7).

Does Alliant have physical locations?

Locations: Alliant is an online-only institution based in Chicago, Illinois. While there are no physical locations, Alliant offers customers access to a network of more than 80,000 surcharge-free ATMs.

Where are Alliant Credit Union locations?

No, we are a digital credit union. If you need to talk to a human, give us a call at 800-328-1935 or send us a secure message in online banking

Can anyone open an account at Alliant Credit Union?

Yes. You can open an Alliant Savings Account and become a member for just $5. Everybody has to start somewhere, and we want to make it as easy as possible for new members to begin to save — even if they start with just $5.

Does Alliant Credit Union have 24/7 customer service?

To speak with an Alliant member services representative, please call us anytime at (800) 328-1935 (24/7). For international callers, please contact us at (773) 462-2000 (24/7).

Is Alliant a real credit union?

Alliant Credit Union is an online credit union that offers a full range of products and services. It provides a competitive APY on its savings account and has plenty of options for personal banking, including accounts for kids and teens.

Is Alliant better than Chase?

Alliant Credit Union’s High Rate Savings Account, which offers 0.55% APY, beats the standard savings rates many big banks offer by far, such as Chase, which offers 0.01% APY.

Is Alliant an ethical bank?

Not directly ethical. Alliant High-Rate Savings isn’t a socially responsible bank account, but this credit union uses its dollars to better the Chicago community.