SEC Form 425 filed by Nuveen Enhanced Municipal Value Fund

Filed by Nuveen Municipal Credit Income Fund (Commission File No. 333-262286) pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-6 under the Securities Exchange Act of 1934, as amended

Subject Company:

Nuveen Enhanced Municipal Value Fund (Commission File No. 811-22323)

Nuveen Enhanced Municipal Value Fund (NEV)

IMPORTANT NOTICE:

Please exercise your right to vote as soon as possible!

Dear Shareholder:

We recently sent you proxy materials concerning important proposals affecting your fund, which will be considered at an Annual Meeting of Shareholders of the fund on April 29, 2022, at 2:00 p.m., Central Time. In light of the public health concerns regarding the coronavirus outbreak (COVID-19), the Annual Meeting will be held in a virtual meeting format only, which will be conducted online via live webcast. This letter was sent because you held shares in the fund on the record date and we have not received your vote.

YOUR FUND’S BOARD OF TRUSTEES RECOMMENDS THAT YOU VOTE “FOR” THE PROPOSALS

YOUR VOTE IS VERY IMPORTANT

VOTING NOW HELPS MINIMIZE PROXY COSTS, AVOIDS UNNECESSARY COMMUNICATIONS AND ELIMINATES PHONE CALLS TO SHAREHOLDERS

Please vote using one of the following options:

Log on to the website or scan the QR code shown on your proxy card. Please have your proxy card in hand to access your control number (located in the shaded box) and follow the on-screen instructions.

Call the toll-free number listed on your proxy card. Please have your proxy card in hand to access your control number (located in the shaded box) and follow the recorded instructions.

Complete, sign and date the proxy card and then return it in the enclosed postage paid envelope.

The proxy materials we sent you contain important information regarding the proposals that you and other shareholders are being asked to consider. Please read the materials carefully. If you have any

R1_32543_P65947

questions regarding the proposals, or need assistance with voting, you may call Computershare Fund Services, the fund’s proxy solicitor, toll free at 1- 866-774-4940.

View or download the Proxy Statement:

https://www.nuveenproxy.com/Closed-End-Fund-Proxy-Information

Thank you for your prompt attention to this matter. If you have already voted, we appreciate your participation.

PO Box 808001

Louisville, KY 40233-8001

RESPONSE NEEDED

Re: Your investment in Nuveen Enhanced Municipal Value Fund (NEV)

Dear Valued Shareholder:

We have been trying to contact you regarding an important proposal pertaining to your investment in Nuveen Enhanced Municipal Value Fund (NEV).

Please call us toll-free at

1-866-963-5815

Please respond as soon as possible with the Reference Number listed above. The call will take only a few moments.

You WILL NOT be asked for confidential information and your call will be recorded for your protection.

Hours of Operation:

Thank you in advance for your participation.