First Interstate Bank Past Bonus Offers

Verified InstitutionMember FDIC

NO ACTIVE OFFERS RIGHT NOW

The offers below have ended and cannot be claimed. Their saved terms are shown for historical reference while we continue monitoring First Interstate Bank.

Expert Analysis & Market Report

Headquarters: Billings, MT. Assets: $25.79B. Branches: 274. Service area: MT. First Interstate Bank is an FDIC-insured institution listed in our bank directory. Headquarters: Billings, MT. Total assets (FDIC): $26.57M. Branch locations (FDIC): 290. Service area: primarily MT and nearby markets. Official site: firstinterstatebank.com.

First Interstate Bank has no active verified bonus today. We found 2 historical bonus records with bonuses up to $400. We are still tracking First Interstate Bank and will publish new verified bonuses as soon as they appear.

Offer Update History

No change records yet.

Historical reference

Previous First Interstate Bank bonus offers

These promotions are no longer available. Dates and requirements reflect the most recent information saved before each offer was archived.

2 past offers

Expired offer

Business Checking

Previously offered by First Interstate Bank

$400

Previous sign-up bonus

Expired on: June 29, 2026
Availability: CO & ID
Last recorded: July 2, 2026

Previous Offer Details:

-In branch & Colorado and Idaho only

-First Interstate Bank is offering a $400 bonus when you open a new business checking account and complete the following requirements:

-Use promo code 26GROW400 in branch

-Deposit $2,500 within 30 days and maintain the balance for 60 consecutive days

Historical information only. This offer cannot be claimed, and the bank's current eligibility rules may be different.

Expired offer

Personal Checking

Previously offered by First Interstate Bank

$300

Previous sign-up bonus

Expired on: November 20, 2025
Availability: CO, IA, ID, MN, MO, MT, ND, NE, OR, SD, WA, and WY
Last recorded: November 22, 2025

Previous Offer Details:

Bonus Requirements: Use promo code FALL25BONUS and Set up and receive three electronic deposits of $500 or more each within 90 days of account opening.

$300 savings bonus: Use promo code FALL25BONUS and Deposit $10,000 within 30 days of account opening and maintain the balance for 90 consecutive days

No account in past 90 days and no bonus in past 12 months.

Historical information only. This offer cannot be claimed, and the bank's current eligibility rules may be different.

Market View MONTANA MARKET SUMMARY

Currently, there are 25 active bank offers available in Montana with a combined total bonus value of $9,277.

The top 3 local regional offers are: Bravera Bank ($200), Horizon Credit Union ($200), and Mountain America Credit Union ($150).

Additionally, the most lucrative nationwide offers accessible in Montana are: HSBC ($1,000), SoFi ($737), and BMO Bank ($600).

Please use our search function at our main page.

View All 25 Offers in Montana

First Interstate Bank Overview

Headquarters:Billings, MT

Total Assets:$25.79B

Branches:274

Website:firstinterstatebank.com

First Interstate Bank is an FDIC-insured institution listed in our bank directory. Headquarters: Billings, MT. Total assets (FDIC): $26.57M. Branch locations (FDIC): 290. Service area: primarily MT and nearby markets. Official site: firstinterstatebank.com.

First Interstate Bank is an FDIC-insured financial institution based in Montana. While there are no active bonus promotions at this time, we continuously monitor First Interstate Bank for new checking, savings, and business account offers. Banks in Montana collectively offer 25 active promotions — use our search to find the best current deals.