Opinion and consent of Ropes & Gray LLP

We are counsel to Columbia Funds Series Trust I (the “Trust”). In connection with the registration statement of the Trust on Form N-14 (the “Registration Statement”) being filed by the Trust under the Securities Act of 1933, as amended (the “Act”), relating to the proposed combination of Columbia Small Cap Value Fund I (the “Buying Fund”) with Columbia Disciplined Small Core Fund (the “Acquired Fund”), each a series of the Trust, and the issuance of Class A, Class Adv, Class C, Class Inst, Class Inst2 and Class Inst3 shares of beneficial interest of the Buying Fund in connection therewith (the “Shares”), in accordance with the terms of the Agreement and Plan of Reorganization by and among the Trust, on behalf of the Buying Fund and the Acquired Fund, certain other registered investment companies, on behalf of certain series thereof, as applicable, Columbia Management Investment Advisers, LLC and Columbia Wanger Asset Management, LLC dated February 14, 2020 (the “Agreement and Plan of Reorganization”), we have examined the Trust’s Agreement and Declaration of Trust on file in the office of the Secretary of the Commonwealth of Massachusetts (the “Declaration of Trust”) and the Trust’s Bylaws, both as amended to date, and are familiar with the actions taken by the Trust’s trustees in connection with the issuance and sale of the Shares. We have also examined such other documents and records as we have deemed necessary for the purposes of this opinion.

We have assumed for purposes of this opinion that, prior to the date of the issuance of the Shares, (1) the trustees of the Trust will have taken all action required of them for the approval of the Agreement and Plan of Reorganization and (2) the Agreement and Plan of Reorganization will have been duly executed and delivered by each party thereto.

1. The Trust is a duly organized and validly existing unincorporated association under the laws of the Commonwealth of Massachusetts and is authorized to issue an unlimited number of its shares of beneficial interest.

2. When issued in accordance with the Agreement and Plan of Reorganization, the Shares will be validly issued, fully paid and, except as noted in the paragraph below, nonassessable by the Trust.

The Trust is an entity of the type commonly known as a “Massachusetts business trust.” Under Massachusetts law, shareholders could, under certain circumstances, be held personally liable for the obligations of the Trust. However, the Declaration of Trust disclaims shareholder liability for acts or obligations of the Trust or the particular series or class and requires that notice of such disclaimer be given in each agreement, obligation or instrument entered into or executed by the Trust or its trustees. The Declaration of Trust provides for indemnification out of the property of the particular series or class for all loss and expense of any shareholder of the Trust held personally liable solely by reason of his or her being or having been such a shareholder. Thus, the risk of a shareholder incurring financial loss on account of shareholder liability is limited to circumstances in which the particular series or class would be unable to meet its obligations.

Sincerely,

/s/ Ropes & Gray LLP

Ropes & Gray LLP