Apply for a Mortgage with First Interstate Bank

Mortgage Toolbox

Our Calculators help you budget future home mortgage payment costs, decide whether to rent or own & much more.

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Learn which loans you'd like to discuss with your Mortgage Loan Officer.

Compare Loan Types

Our handy Mortgage Checklist lets you know which documents should be gathered in order to receive a loan estimate from First Interstate Bank.

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Its hard to know what all these terms mean.

Review Common Terms

Notification of Error & Requests for Information

Please Note: If you wish to contact us in writing to assert an error or make an information request, you must use the address below.

First Interstate Bank Attn: Compliance Dept.
PO Box 30918
1800 6th Avenue North
Billings, MT 59116

First Intersate Bank Member of FDIC, Equal Housing Lender.

Notification of Error & Requests for Information

Please Note: If you wish to contact us in writing to assert an error or make an information request, you must use the address below.

First Interstate Bank Attn: Compliance Dept.
PO Box 30918
1800 6th Avenue North
Billings, MT 59116

First Intersate Bank Member of FDIC, Equal Housing Lender.