SOUTHERN CO

For the period ended Mar 31, 2025. Filed May 1, 2025.

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2025 · Filed May 1, 2025

SO$93.65+0.1%Stored close · as of Nov 10, 2026

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Contents

Combined Notes to the Condensed Financial Statements

NOTES TO THE CONDENSED FINANCIAL STATEMENTS

FOR

INDEX TO THE NOTES TO THE CONDENSED FINANCIAL STATEMENTS

Note · Page
A	Introduction	42
B	Regulatory Matters	45
C	Contingencies	47
D	Revenue from Contracts with Customers and Lease Income	49
E	Consolidated Entities and Equity Method Investments	53
F	Financing	55
G	Income Taxes	57
H	Retirement Benefits	58
I	Fair Value Measurements	61
J	Derivatives	65
K	Acquisitions and Dispositions	77
L	Segment and Related Information	77

INDEX TO APPLICABLE NOTES TO FINANCIAL STATEMENTS BY REGISTRANT

The following unaudited notes to the condensed financial statements are a combined presentation; however, information contained herein relating to any individual Registrant is filed by such Registrant on its own behalf and each Registrant makes no representation as to information related to the other Registrants. The table below indicates the Registrants to which each note applies.

	Applicable Notes
Registrant	A	B	C	D	E	F	G	H	I	J	K	L
Southern Company	l	l	l	l	l	l	l	l	l	l	l	l
Alabama Power	l	l	l	l		l	l	l	l	l		l
Georgia Power	l	l	l	l		l	l	l	l	l		l
Mississippi Power	l	l	l	l		l	l	l	l	l	l	l
Southern Power	l		l	l	l	l	l	l	l	l	l	l
Southern Company Gas	l	l	l	l	l	l	l	l	l	l		l

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.