FDIC-Insured - Backed by the full faith and credit of the U.S. Government
Mobile Menu

ACH Schedule for Martin Luther King, Jr. Day

Online Business Banking ACH files must be received by Thursday, January 16, in order to settle before the upcoming federal holiday (Martin Luther King, Jr. Day). ACH files received on Friday, January 17, will not settle until Tuesday, January 21.

Telephone Banking

888-752-3341

Enjoy the convenience of First Interstate Bank's 24 Hour Day & Night Telephone Banking.

With telephone banking you can obtain balance information on your checking, savings, CD, or loan account; verify transactions on your account; and make account transfers.

Before using our Day and Night Telephone Banking service, make sure you have your account number(s) handy. Once you have entered your account number, you will be asked for a Personal Identification Number (PIN). You may change your PIN at any time by listening to the menu options and choosing "Change your Personal Identification Number."

Our automated telephone banking system is easy to use. Simply follow the instructions given to you over the telephone. You will be offered a series of menu selections from which to choose. If you need to talk to one of our Client Contact Center personnel, simply press zero. Our representatives are available to help Monday through Friday, 7:30 a.m. to 7:00 p.m. MT and Saturday, 9:00 a.m. to 2:00 p.m. MT

We use Qualtrics Digital Experience Analytics (DXA) to gather digital analytics, session replay and behavioral heuristics. This helps us understand how you use our Products and how we can improve your experience. We only collect, use, and share session data in accordance with our Privacy Policy.