Saturday, January 19
Online Banking, Mobile Banking, and Business Online Banking will undergo routine maintenance from 8 p.m. MT on Saturday, January 19 until 9 a.m. MT on Sunday, January 20. Up-to-date account information will be unavailable during this time. We apologize for any inconvenience this may cause.
Category: Business Service: Credit Cards | Updated: December 19th, 2018
First Interstate Bank
PO Box 35138
Seattle, WA 98124-5138
ACH Payments: Set up through your local branch or our customer service line (M-F, 8am-5pm) toll free at 1-888-833-3453 option #3.
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