Company: AILIM
Filing Date: 2025-09-16
Form Type: 424B2
Source: 0001104659-25-090464
Chunk: 17

Company: Ameren Illinois Co
Filing Date: 2025-09-16
Form: 424B2
Chunk 17
---
, in particular, the subcaption “Reserved Rights to Amend the Mortgage Indenture and Consents,” for additional important information about the bonds. That information includes additional information about the terms of the bonds, including security and the lien of the mortgage indenture, general information about the mortgage indenture and the mortgage trustee, a description of certain restrictions and covenants contained in the mortgage indenture, certain reservations of rights to amend the mortgage indenture without any consent or other action of the holders of certain first mortgage bonds, including the bonds, and a description of events of default under the mortgage indenture.

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TABLE OF CONTENTS

### CERTAIN UNITED STATES FEDERAL INCOME TAX CONSEQUENCES
The following discussion describes certain U.S. federal income tax consequences of the purchase, ownership and disposition of the bonds. Unless otherwise stated, this discussion deals only with bonds held as capital assets (generally, assets held for investment) by holders that purchase bonds in this offering at the offering price. The tax treatment of a holder may vary depending on that holder’s particular situation. This discussion does not address all of the tax consequences that may be relevant to holders that may be subject to special tax treatment such as, for example, insurance companies, broker-dealers, tax-exempt organizations, governmental organizations, regulated investment companies, persons holding bonds as part of a straddle, hedge, constructive sale, conversion transaction or other integrated investment, persons holding bonds through a partnership or other pass-through entity or arrangement, U.S. holders whose functional currency is not the U.S. dollar or who hold bonds through a non-U.S. broker or other non-U.S. intermediary, certain former U.S. citizens or long-term residents, persons subject to the alternative minimum tax and persons required to report income with respect to a bond no later than when such income is reported on an “applicable financial statement” under Section 451(b) of the Internal Revenue Code of 1986, as amended. In addition, this discussion does not address any aspects of state, local, or foreign tax laws or any U.S. federal tax laws other than income taxes. This discussion is based on the U.S. federal income tax laws, U.S. Treasury regulations, rulings and decisions in effect as of the date of this prospectus supplement, which are subject to change or differing interpretations, possibly on a retroactive basis. You should consult your tax advisors as to the particular tax consequences to you of the purchase, ownership