EXHIBIT 23
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the following Registration Statements and in the related Prospectuses of our reports dated February 26, 2007, with respect to the consolidated financial statements of Regions Financial Corporation and subsidiaries, Regions Financial Corporation management’s assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of Regions Financial Corporation, included in the 2006 Annual Report to Shareholders of Regions Financial Corporation and incorporated by reference in this Annual Report (Form 10-K) for the year ended December 31, 2006:
Form S-8 No. 333-135604 pertaining to the stock options and other equity interests issuable
under the Regions Financial Corporation 2006 Long Term Incentive Plan;
Form S-8 No. 333-138460 pertaining to the stock options and other equity interests issued,
issuable, or assumed under:
AmSouth Bancorporation 2006 Long Term Incentive Compensation Plan
AmSouth Bancorporation 1996 Long Term Incentive Compensation Plan
First American Corporation 1999 Broad-Based Employee Stock Option Plan
Deposit Guaranty Corporation Long Term Incentive Plans
First American Corporation 1991 Employee Stock Incentive Plan
AmSouth Bancorporation Amended and Restated 1991 Employee Stock Incentive Plan
Pioneer Bancshares, Inc. Long Term Incentive Plan
AmSouth Bancorporation Stock Option Plan for Outside Directors
AmSouth Bancorporation Thrift Plan
AmSouth Bancorporation Deferred Compensation Plan and Amended and Restated Deferred Compensation Plan for Directors of AmSouth Bancorporation
AmSouth Bancorporation Employee Stock Purchase Plan
Form S-3 No. 33-59735 pertaining to the registration of $200,000,000 subordinated debt securities;
Form S-3 No. 333-54552 pertaining to the registration of $1,000,000,000 debt and equity securities;
Form S-3 No. 333-74102-01 pertaining to the registration of $1,500,000,000 debt and equity securities;
Form S-8 No. 333-117272 pertaining to the stock options and other equity interests issued, issuable, or assumed under:
Regions Financial Corporation 1999 Long-Term Incentive Plan
Regions Financial Corporation Amended and Restated 1991 Long-Term Incentive Plan
Regions Financial Corporation Amended and Restated Directors’ Stock Investment Plan
Regions Financial Corporation 401 (K) Plan
Regions Financial Corporation Supplemental 401 (K) Plan
First Alabama Bancshares, Inc. 1988 Stock Option Plan
Union Planters Corporation 1998 Stock Incentive Plan for Officers and Employees
Union Planters Corporation Amended and Restated 1992 Stock Incentive Plan
Union Planters Corporation 401 (K) Retirement Savings Plan
Union Planters Corporation Amended and Restated 1996 Deferred Compensation Plan
for Executives
and pertaining to options assumed by Regions Financial resulting from the acquisitions by
former Regions Financial Corporation of
First Community Banking Services, Inc.
First Bancshares, Inc.
First Commercial Corporation
Florida First Bancshares, Inc.
First State Corporation
First National Bancorp
GF Bancshares, Inc.
Greenville Financial Corporation
Minden Bancshares, Inc.
Morgan Keegan, Inc.
PALFED, Inc.
Park Meridian Financial Corporation
Bullsboro Bancshares, Inc.
VB&T Bancshares Corp.
and pertaining to options assumed by Regions Financial resulting from the acquisitions by
Union Planters Corporation of
Capital Bancorporation, Inc.
Capital Factors Holding, Inc.
Capital Savings Bancorp, Inc.
Grenada Sunburst System Corporation
Leader Financial Corporation
Magna Group, Inc.
People’s First Corporation
Ready State Bank
Strategic Outsourcing, Inc.
Valley Federal Savings Bank
Form S-3 No. 333-124337 pertaining to the registration of $2,000,000,000 debt and equity securities; and
Form S-3 No. 333-126797 pertaining to the securities registered on Form S-3 No. 333-124337.
/s/ Ernst & Young LLP
Birmingham, Alabama
February 26, 2007