Summary: Alliant Credit Union was founded in 1935 and is headquartered in Chicago. It offers competitive rates on CDs and above-average rates on its no-fee checking and savings accounts. The credit union, which went fully digital in 2020, has an open field of membership. It also ranks among our list of the 10 best credit unions of 2026. Alliant Credit Union product overview High-yield checking Alliant offers checking accounts with no minimum balance requirement and no monthly maintenance fee, includin ...