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ACH Schedule for Memorial Day

Business Online Banking ACH files must be received by Thursday, May 23, in order to settle before the upcoming federal holiday (Memorial Day). ACH files received on Friday, May 24, will not settle until Tuesday, May 28.

Online Account Opening

Is my online account opening application secure?

Service: Online Account Opening | Updated: April 4th, 2023


Yes. First Interstate Bank uses encryption for online security. Encryption technology helps secure information transmission along the Internet by encoding the transmitted data using a mathematical formula to scramble the data. Without a corresponding decoder, the transmission would look like nonsense text and be unusable.

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