First Interstate Online Banking


First Interstate Bank operates as a community bank that provides personal and business banking products and services in Montana, Wyoming, and South Dakota. The company offers checking, savings, money market, certificates of deposit, individual retirement, and health savings accounts; credit, debit, and prepaid cards; electronic statements; and home mortgage, personal, auto and recreation.

Official Website:

Bank Customer Service Telephone:

  • 855-342-3400

Bank Routing Number:

  • 092901683

Bank Swift Number:

  • FRIRUS55

Online Banking Mobile Apps:

Branch Locator:

First Interstate Online Banking Login


Step 1 – Users who wish to log in to their online account must go to the banks Homepage and enter their ´Access ID´ in the blank field of the ´Online Banking Login´ facility. Then the user must click on´Login´.


Forgotten access ID/password

Step 1 – Users who forget their Password must click on the link ´Forgot´ which is below the ´Online Banking Login´ facility.


Step 2 – Users are directed to a second page where the user must complete the blank fields and then click ´Submit´. An email will be sent which contains the new password.


  • Access ID
  • Last four digits of tax ID
  • Email address


Users who forget their access ID on contact the bank directly by telephone on 1(888) 752-3332 or visit their Local Branch for further advice.


Step 1 – Account holders who wish to bank online must create an online account by enrolling. They do this by clicking on the link ´Enroll´ below the ´Online Banking Login´.


Step 2 – Users are directed to a second page where they must complete the ´Blank Fields´ and click ´Submit´ to continue with their online enrollment.


  • Email address
  • Account number
  • Account type
  • Last four digits of social security number/Ta ID number/Telephone banking PIN