Company: NMI
Filing Date: 2025-06-30
Form Type: DEF 14A
Source: 0001193125-25-152772
Chunk: 1

Company: NUVEEN MUNICIPAL INCOME FUND INC
Filing Date: 2025-06-30
Form: DEF 14A
Chunk 1
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 each Fund as outlined below:                                                                  |

| a. | For Municipal Income, to elect four (4) Class III Board Members. |

| b. | For AMT-Free Value, Municipal Value, New York Value, Select Maturities and 
 Taxable Income, to elect four (4) Class I Board Members.                   |

| c. | For AMT-Free Credit Income, AMT-Free                                                                                                                              
 Quality, Dynamic Municipal, Credit Income, Municipal High Income, New York AMT-Free, New York Quality Income and Quality Income, to elect five (5) Board Members. |

| i) | three (3) Class I Board Members to be elected by the holders of Common Shares and Preferred Shares, voting together 
 as a single class; and                                                                                              |

| ii) | two (2) Board Members to be elected by the holders of Preferred Shares only, voting separately as a single class. |

| 2. | To transact such other business as may properly come before the Annual Meeting. |

Shareholders of record at the close of business on June 20, 2025 are entitled to notice of and to vote at the Annual Meeting. While all shareholders are cordially invited to attend the virtual Annual Meeting, we encourage you to vote your shares promptly, whether or not you plan to attend the virtual Annual Meeting in order to avoid delay and additional expense and to assure that your shares are represented. You may vote by mail, telephone or over the Internet. To vote by mail, please mark, sign, date and mail the enclosed proxy card. No postage is required if mailed in the United States. To vote by telephone, please call the toll-free number located on your proxy card and follow the recorded instructions, using your proxy card as a guide. To vote over the Internet, go to the Internet address provided on your proxy card and follow the instructions, using your proxy card as a guide.

| Mark L. Winget               
 Vice President and Secretary |

| Joint Proxy Statement |     | 333 West Wacker Drive   
 Chicago, Illinois 60606 
 (800) 257-8787          |

June 30, 2025 This Joint Proxy Statement is first being mailed to shareholders on or about July 2, 2025. Nuveen AMT-FreeMunicipal Credit Income Fund (NVG) Nuveen AMT-FreeMunicipal Value Fund (NUW) Nuveen AMT-FreeQuality Municipal Income Fund (NEA) Nuveen Dynamic Municipal Opportunities Fund