How to name beneficiaries and fund a trust at First Interstate
Covers 8 deposit, 2 retirement, and 3 lending accounts — beneficiaries can be managed online
Client Contact Center
Phone1-406-255-5000
Toll-Free1-855-342-3400
Emailpcbank@fib.com
Mailing Address
First Interstate Bank, 401 N 31st St, Billings, MT 59101
Telephone Banking
Credit Card Support
Debit Card Disputes
Debit Card PIN Activation/Reset
WebsiteLearn more→
Death Claims (handled via Client Contact Center)
Phone1-855-342-3400
Toll-Free1-855-342-3400
Mailing Address
First Interstate Bank, 401 N 31st St, Billings, MT 59101
Mortgage Servicing
Wealth Management Trust & Estates
Verified May 2026
There are two ways to keep your First Interstate accounts out of probate: adding beneficiary designations and retitling eligible accounts into a revocable living trust. Which approach works best depends on the account type and your overall estate plan.
Across 13 product types, First Interstate accounts vary in how they transfer at death. The sections below walk through Payable on Death (POD) designations, trust funding options, and which products support each method.
Simple BankingBasic CheckingSelect CheckingPremier CheckingRegular SavingsMoney Market AccountCertificate of DepositHealth Savings Account (HSA)
1
Log in to your First Interstate Bank online banking account at https://www.firstinterstatebank.com/login
2
Navigate to account settings or beneficiary management
3
Select the account you want to add a beneficiary to
4
Enter beneficiary information:
- Full legal name, date of birth, and Social Security number
- Primary and contingent beneficiary allocations with percentages
5
Review and submit the beneficiary designation
Required Documents
- Trust name, date established, and tax ID (EIN or SSN)
Special Requirements
- Trust beneficiary designations may require visiting a branch or contacting the Client Contact Center
- IRA beneficiary designations may require completion of a separate beneficiary form
- Changes to beneficiary designations on trust accounts may require updated trust documentation
- If an Individual account has no Beneficiary Designation, it is a Single-Party Account; with a POD designation, it becomes a Single-Party Account with POD
Client Contact Center
Phone1-406-255-5000
Toll-Free1-855-342-3400
Emailpcbank@fib.com
Mailing Address
First Interstate Bank, 401 N 31st St, Billings, MT 59101
Telephone Banking
Credit Card Support
Debit Card Disputes
Debit Card PIN Activation/Reset
WebsiteLearn more→
Death Claims (handled via Client Contact Center)
Phone1-855-342-3400
Toll-Free1-855-342-3400
Mailing Address
First Interstate Bank, 401 N 31st St, Billings, MT 59101
Mortgage Servicing
Wealth Management Trust & Estates
Verified May 2026
Estate planning articles
Learn how to protect your First Interstate accounts and other assets with trusts, beneficiary designations, and estate planning documents.
