# EDGAR Filing Document

**Accession Number:** 0000049648
**File Stem:** 0001193125-26-067034
**Filing Date:** 2026-2
**Character Count:** 5684
**Document Hash:** 7c647f4fd661914318ea4cd2f4084664
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-067034.hdr.sgml**: 20260224

**ACCESSION NUMBER**: 0001193125-26-067034

**CONFORMED SUBMISSION TYPE**: FWP

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260224

**DATE AS OF CHANGE**: 20260224

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** IDAHO POWER CO
- **CENTRAL INDEX KEY:** 0000049648
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 820130980
- **STATE OF INCORPORATION:** ID
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 333-285140-01
- **FILM NUMBER:** 26671761

**BUSINESS ADDRESS:**
- **STREET 1:** 1221 W IDAHO ST
- **STREET 2:** PO BOX 70
- **CITY:** BOISE
- **STATE:** ID
- **ZIP:** 83702
- **BUSINESS PHONE:** 2083882200

**MAIL ADDRESS:**
- **STREET 1:** PO BOX 70
- **STREET 2:** 1221 W IDAHO STREET
- **CITY:** BOISE
- **STATE:** ID
- **ZIP:** 83702-5627
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** IDAHO POWER CO
- **CENTRAL INDEX KEY:** 0000049648
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 820130980
- **STATE OF INCORPORATION:** ID
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP

**BUSINESS ADDRESS:**
- **STREET 1:** 1221 W IDAHO ST
- **STREET 2:** PO BOX 70
- **CITY:** BOISE
- **STATE:** ID
- **ZIP:** 83702
- **BUSINESS PHONE:** 2083882200

**MAIL ADDRESS:**
- **STREET 1:** PO BOX 70
- **STREET 2:** 1221 W IDAHO STREET
- **CITY:** BOISE
- **STATE:** ID
- **ZIP:** 83702-5627

**Filed pursuant to Rule 433** 

**Registration No. 333-285140-01** 

**February 24, 2026** 

**<u>Final Term Sheet</u>**

**4.85% First Mortgage Bonds due 2036 (the "Notes")** 

**<u>Secured Medium-Term Notes, Series O</u>**

**IDAHO POWER COMPANY** 

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| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Issuer: Idaho Power Company<br>Trade Date: February 24, 2026<br>Original Issue Date/Settlement Date: February 27, 2026, which is the third business day following the Trade Date, or "T+3." Under Rule 15c6-1 under the Exchange Act, trades in the secondary market generally are required to settle in one business day, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade the Notes prior to the first business day before delivery of the Notes hereunder will be required, by virtue of the fact that the Notes initially settle in T+3, to specify an alternate settlement arrangement at the time of any such trade to prevent a failed settlement<br>Principal Amount: $350,000,000<br>Original Interest Accrual Date: February 27, 2026<br>Price to Public: 99.756% of Principal Amount, plus accrued interest, if any, from the Original Issue Date<br>Purchasers' Discount: 0.650%<br>Proceeds to the Company: 99.106%<br>Interest Rate: 4.85% per annum<br>Anticipated Ratings:\*<br>Standard & Poor's Ratings Services: "A-"<br> Moody's Investors Service: "A2"<br>Anticipated Use of Proceeds: To fund a portion of Idaho Power Company's capital expenditures and for other general corporate purposes. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interest Payment Dates: March 1 and September 1, commencing September 1, 2026<br>Redemption: As specified in Pricing Supplement No. 2 dated February 24, 2026<br>Make-whole Call: Prior to December 1, 2035, the greater of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• &nbsp;&nbsp;&nbsp;&nbsp;(a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date (assuming the Notes matured on the Par Call Date) on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 15 basis points less (b) interest accrued to the date of redemption, and<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• 100% of the principal amount of the Notes to be redeemed,<br>plus, in either case, accrued and unpaid interest thereon to the redemption date.<br>Par Call: On or after December 1, 2035, 100% of the principal amount to be redeemed<br>Maturity Date: March 1, 2036<br>CUSIP: 45138LBM4<br>Purchasers:<br>Wells Fargo Securities, LLC ($87500000)<br> BofA Securities, Inc. ($70000000)<br> J.P. Morgan Securities LLC ($70000000)<br> U.S. Bancorp Investments, Inc. ($70000000)<br> Mizuho Securities USA LLC ($17500000)<br> Morgan Stanley & Co. LLC ($17500000)<br> MUFG Securities Americas Inc. ($17500000) |

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\* A securities rating is not a recommendation to buy, sell or hold securities and may be subject to review, revision, suspension or withdrawal at any time.

***The issuer has filed a registration statement (including a prospectus as supplemented by a prospectus supplement) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC, including the accompanying prospectus supplement, for more complete information about the issuer and this offering. You may***

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 ***get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling Wells Fargo Securities, LLC., toll-free at 1-800-645-3751, BofA Securities, Inc., toll-free at 1-800-294-1322, J.P. Morgan Securities LLC, collect at 1-212-834-4533, or U.S. Bancorp Investments, Inc., toll-free at 1-877-558-2607.***