Company: ASB
Filing Date: 2025-12-30
Form Type: S-4
Source: 0001193125-25-337086
Chunk: 75

Company: ASSOCIATED BANC-CORP
Filing Date: 2025-12-30
Form: S-4
Chunk 75
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 of section 368(a) of the Code. These opinions will be based upon and rely on, among other things, various facts, assumptions, representations 52

and warranties and covenants, including those contained in the Merger Agreement and in representation letters provided by Associated and American National. If any of these facts, assumptions, representations and warranties or covenants underlying the tax opinions described above is or becomes incorrect, incomplete, inaccurate or is violated, the validity of, and the conclusions reached in, such tax opinions may be affected, no longer accurate or jeopardized. In addition, the opinions will be subject to certain qualifications and limitations as set forth therein, including that the Merger will be completed according to the terms of the Merger Agreement. An opinion of counsel represents such counsel’s judgment and is not binding on the IRS or any court. Associated and American National have not and do not intend to seek any ruling from the IRS regarding any matters relating to the Merger, and as a result, there can be no assurance that the IRS or a court will not disagree with or challenge any of the conclusions described herein or in such opinions of counsel. Information Reporting and Backup Withholding You may be subject to U.S. information reporting and backup withholding (currently, at a rate of 24%) on any cash payments received in connection with the Merger. You will not be subject to backup withholding, however, if you:

| • |     | furnish your correct taxpayer identification number and certify, among other information, that you are not                                                                                                       
 subject to backup withholding on the IRS Form W-9 (or a suitable substitute or successor form) included in the letter of transmittal to be delivered to you following the completion of the Merger and otherwise 
 comply with all applicable requirements of the backup withholding rules; or                                                                                                                                      |

| • |     | otherwise establish proof of an exemption from backup withholding. |

Backup withholding is not an additional tax. Any amounts withheld under the backup withholding rules generally will be allowed as a refund or credit against your U.S. federal income tax liability, if any, provided that you timely furnish the required information to the IRS. You should consult your own tax advisors to determine your qualification for exemption from backup withholding and the procedure for establishing an exemption in light of your particular circumstances. The preceding discussion is intended only as a summary of the material U.S. federal income tax consequences of the Merger and is not tax or legal advice. It is not a complete analysis or discussion of all potential tax considerations that