Skip to main content
SimplyTrust
SimplyTrust
MobileNewForms & ToolsFreeLearnStates
Company
AboutCareersContactFormsMobileNewPress
Privacy PolicyTerms of ServiceSecurityAI Access

© 2026 SimplyTrust Software Inc.

Home→Financial Institutions→First Interstate→When someone dies

What to do when a First Interstate account holder dies

Contact First Interstate's Wealth Management - Trust and Estates — 9-step process, and 7 required documents

First Interstate

Subsidiary of First Interstate BancSystem, Inc.

firstinterstatebank.com →
First Interstate logo
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
1-888-752-3341
WebsiteLearn more →

Wealth Management - Trust and Estates

Phone1-888-791-4075
WebsiteLearn more →

Death Claims

Phone1-855-342-3400
Toll-Free1-855-342-3400
Mailing Address

First Interstate Bank, 401 N 31st St, Billings, MT 59101

Verified Mar 2026

When a First Interstate account holder passes away, the next step depends on how the accounts were set up. Accounts with beneficiary designations or trust ownership transfer outside of probate. Accounts titled solely in the deceased's name require the estate's legal representative to work with First Interstate's Wealth Management - Trust and Estates (1-855-342-3400) to access and distribute the funds.

Gather the account holder's full name, date of birth, and any known account or policy numbers before contacting First Interstate. A certified death certificate is the primary document required to start any claim.

Deposit, investment & retirement accounts

Here is the step-by-step death claim process at First Interstate:

Filing a claim

1Contact your local First Interstate Bank branch or call the Client Contact Center at 855-342-3400
2Notify the bank of the account holder's passing and provide the account information
3For accounts with a POD beneficiary: provide a certified copy of the death certificate and valid ID for the beneficiary
4For joint accounts with right of survivorship: provide a certified copy of the death certificate for account update
5For accounts without a beneficiary: obtain and provide probate documents, Letters Testamentary, or small estate affidavit as required by state law
6For trust accounts: provide the death certificate, trust documentation, and successor trustee identification
7For IRA accounts: provide the death certificate, beneficiary ID, and complete any required distribution forms
8Submit all documents in person at a branch, by mail, or as directed by the bank representative
9The bank will review documents and process the claim according to account type and state requirements

Required Documents

  • Certified copy of the death certificate
  • Valid government-issued photo ID for the claimant (beneficiary, executor, or successor trustee)
  • Account information for the deceased (account number, name on account)
  • For accounts without beneficiary: Letters Testamentary, Letters of Administration, or small estate affidavit
  • For trust accounts: trust documentation including successor trustee provisions and signature pages
  • For IRA accounts: IRA distribution or transfer forms as applicable
  • Court-issued documents if probate is required

Processing times vary based on account type, completeness of documentation, and state-specific requirements. Visiting a local branch is the most efficient way to initiate a death claim. First Interstate Wealth Management can assist with trust account settlements and estate administration through their Trust and Estates team. Wealth Management Specialist line: 1-888-791-4075, Mon-Fri 8:00am-5:00pm MST.

Mortgage and home lending

Mortgages and home equity loans are liabilities, not assets. They do not have beneficiaries and cannot be retitled to a trust. When a borrower dies, the loan obligation transfers with the property to whoever inherits it. Under the federal Garn-St. Germain Act, the lender cannot accelerate the loan or call it due when the property transfers to a surviving spouse, child, or the borrower's revocable trust.

1Notify First Interstate Bank of the borrower's death by calling mortgage servicing at 1-866-295-1339 or the Client Contact Center at 855-342-3400
2Provide the deceased borrower's full legal name, Social Security number, and loan number
3Submit a certified copy of the death certificate
4Request the Successor in Interest application and provide documentation proving your ownership interest in the property (e.g., probated will, court order, deed, or trust document)
5First Interstate will review your documentation and confirm your status as a Successor in Interest
6Once confirmed, you will have access to loan information and can discuss options: continue making payments, apply for loss mitigation, assume the loan, refinance, or pay off the balance
7Continue making monthly mortgage payments during the review process to avoid default

Required Documents

  • Certified copy of the death certificate
  • Government-issued photo ID for the heir or personal representative
  • Documentation proving ownership interest in the property (probated will, court order, recorded deed, or trust document)
  • Letters Testamentary or Letters of Administration (if going through probate)
  • Marriage certificate (if surviving spouse)
  • Trust document showing successor trustee or beneficiary (if applicable)

Under the federal Garn-St. Germain Depository Institutions Act (12 U.S.C. 1701j-3), First Interstate Bank cannot enforce a due-on-sale clause when the property transfers to a surviving spouse, child, relative upon death, or the borrower's revocable living trust. Confirmed Successors in Interest are treated as borrowers under CFPB mortgage servicing rules and are entitled to account information and loss mitigation options. Client Contact Center: 855-342-3400.

First Interstate requires several documents to process a claim, including Certified copy of the death certificate, Valid government-issued photo ID for the claimant (beneficiary, executor, or successor trustee), and Account information for the deceased (account number, name on account), and additional documentation depending on the account type. Certified copies are typically needed—photocopies are generally not accepted for death certificates or court documents.


Frequently asked questions

You can add a Pay on Death (POD) beneficiary through online banking, by visiting any First Interstate branch, or by calling the Client Contact Center at 855-342-3400. You will need to provide the beneficiary's full legal name, date of birth, and Social Security number. Both primary and contingent beneficiaries can be designated.

The process depends on the account type and ownership. Accounts with a POD beneficiary pass directly to the named beneficiary upon presentation of a death certificate and valid ID. Joint accounts with right of survivorship pass to the surviving owner. Trust accounts are administered by the successor trustee. Accounts without a beneficiary or joint owner may require probate. Contact your local branch or call 855-342-3400 to begin the process.

No. IRA accounts cannot be retitled to a trust at any financial institution due to IRS regulations. However, you can name a trust as the beneficiary of your IRA. This allows the IRA assets to flow into the trust upon your death. Contact the Client Contact Center at 855-342-3400 or visit a branch to update your IRA beneficiary designation.

First Interstate's Death Claims can be reached by phone at 1-855-342-3400 for questions throughout the claims process.

If the deceased held multiple First Interstate accounts, each may require a separate claim or have different documentation requirements. The Wealth Management - Trust and Estates can confirm which accounts require individual attention and which can be processed together.

First Interstate

Subsidiary of First Interstate BancSystem, Inc.

firstinterstatebank.com →
First Interstate logo
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
1-888-752-3341
WebsiteLearn more →

Wealth Management - Trust and Estates

Phone1-888-791-4075
WebsiteLearn more →

Death Claims

Phone1-855-342-3400
Toll-Free1-855-342-3400
Mailing Address

First Interstate Bank, 401 N 31st St, Billings, MT 59101

Verified Mar 2026

Tools for settling a First Interstate estate

Calculators and checklists to help navigate estate settlement after a First Interstate account holder passes away.

How Do I Settle an Estate?

Get a personalized checklist for settling an estate after someone passes away. Covers trust administration, probate, and intestate estates.

Get Checklist

How Much Does Probate Cost?

Estimate attorney fees, executor fees, court costs, and timeline for probating an estate in your state. See if the estate qualifies for simplified probate procedures.

Use Calculator

How Much Can an Executor Charge?

Calculate how much an executor (personal representative) can charge for administering an estate. See if your state has statutory fees or uses reasonable compensation.

Use Calculator

How Many Death Certificates Do I Need?

Calculate how many certified death certificates you need based on the assets and accounts you need to close. See state-specific ordering information.

Use Calculator

Do I Need Probate?

Answer a few questions to find out if an estate needs full probate, qualifies for simplified probate, or can avoid probate entirely with a small estate affidavit.

Check Now

Who Inherits Without a Will?

Find out who inherits your estate and how much they get if you die without a will. Based on your state's intestate succession laws.

Use Calculator
SimplyTrust Logo

Every family deserves a plan. We'll help.

Forms

  • Revocable Trust
  • Last Will
  • Pour-Over Will
  • Healthcare Proxy
  • Financial POA

Tools

  • Trust vs Will
  • Probate Calculator
  • Who Inherits
  • Estate Settlement
  • Death Tax Calculator
  • Life Insurance

Learn

  • Articles
  • State Guides
  • Estate Law
  • Life Events
  • Law Firms
  • Financial Institutions

Company

  • About
  • Careers
  • Contact
  • Press
  • Mobile App

SimplyTrust is not a law firm and does not provide legal advice, legal counsel, or attorney review. Information on this platform is for general informational purposes only. Use of SimplyTrust does not create an attorney-client relationship. You are solely responsible for all documents you create. For advice tailored to your circumstances, consult a licensed attorney in your state.

© 2026 SimplyTrust Software Inc. All rights reserved.

Privacy Policy·Terms of Service·Security··AI Access

All content, data, and calculations are proprietary. Automated scraping, systematic downloading, or data extraction is prohibited under our Terms of Service. Product visuals are simulated for illustrative purposes and may differ from actual experience.

Estate planning, in your pocket.

Create and manage your trust from your phone.

Revocable Trusts

Skip probate with a revocable trust

Estate Ledger

Every decision signed, timestamped, and hashed

Pricing

Simple, transparent pricing

Download

Get the app on iOS and Android