Company: CMA
Filing Date: 2025-11-25
Form Type: DEFM14A
Source: 0001193125-25-297173
Chunk: 207

Company: COMERICA INC
Filing Date: 2025-11-25
Form: DEFM14A
Chunk 207
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 of the Code. These opinions will be based on the assumption that the first merger will be completed in the manner set forth in the merger agreement and the registration statement on Form S-4of which this joint proxy statement/prospectus forms a part, and on representation letters provided by Fifth Third and Comerica, dated as of the Closing Date. If any of the representations, warranties, covenants or assumptions upon which the opinions described above are based are inconsistent with the actual facts, or if any condition contained in the merger agreement and affecting these opinions is breached or is waived by any party, the U.S. federal income tax consequences of the first merger could be adversely affected. Neither of the opinions described above will be binding on the Internal Revenue Service (the “IRS”). Fifth Third and Comerica have not sought and will not seek any ruling from the IRS regarding any matters relating to the first merger, and, as a result, there can be no assurance that the IRS will not assert, or that a court would not sustain, a position contrary to any of the conclusions set forth below. As a “reorganization,” the material U.S. federal income tax consequences of the first merger to U.S. holders of Comerica common stock and of Comerica preferred stock, as applicable, are set forth in the remainder of this discussion:

| • |     | a holder who receives solely shares of Fifth Third common stock in exchange for shares of Comerica common stock,                                                                              
 or a holder who receives solely shares of Fifth Third preferred stock in exchange for shares of Comerica preferred stock generally will not recognize any gain or loss upon the first merger; |

| • |     | a holder who receives shares of Fifth Third common stock and cash instead of a fractional share of Fifth Third                                                                                                                        
 common stock in exchange for shares of Comerica common stock generally will not recognize any gain or loss upon the first merger, except with respect to the cash received instead of a fractional share of Fifth Third common stock; |

138

| • |     | the aggregate tax basis of the Fifth Third common stock or Fifth Third preferred stock, as applicable, received                                                                                                                               
 in the first merger (including fractional share interests in Fifth Third common stock deemed received and exchanged for cash), will be equal to the holder’s aggregate tax basis in the Comerica common stock or Comerica preferred stock, as 
 applicable, for which it is exchanged; and                                                                                                                                                                                                    |

| • |     | the holding period of Fifth Third common stock or