Company: NMI
Filing Date: 2025-07-07
Form Type: N-CSRS
Source: 0001193125-25-155990
Chunk: 10

Company: NUVEEN MUNICIPAL INCOME FUND INC
Filing Date: 2025-07-07
Form: N-CSRS
Chunk 10
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 by the Fund on the floating                                                                      
 rate certificates issued by the special purpose trusts for the self-deposited inverse floaters held by the Fund (as described in Notes to Financial Statements), where applicable, as follows: |

|            |     | Ratios of Interest 
 Expense to         
 Average Net Assets 
 Applicable         
 to Common Shares   |
|            |     | NMI                |
| 4/30/25(d) |     | 0.01%(e)           |
| 10/31/24   |     | —                  |
| 10/31/23   |     | —                  |
| 10/31/22   |     | —                  |
| 10/31/21   |     | —                  |
| 10/31/20   |     | —                  |

| (d) | Unaudited. |

| (e) | Annualized. |

| (f) | Value rounded to zero. |

| See Notes to Financial 
 Statements   63        |

Notes to Financial Statements (Unaudited) 1. General Information Fund Information:The funds covered in this report and their corresponding New York Stock Exchange (“NYSE”) symbols are as follows (each a “Fund” and collectively, the “Funds”):

| • |     | Nuveen Municipal Value Fund, Inc. (NUV) |

| • |     | Nuveen AMT-Free Municipal Value Fund (NUW) |

| • |     | Nuveen Municipal Income Fund, Inc. (NMI) |

The Funds are registered under the Investment Company Act of 1940 (the “1940 Act”), as amended, as closed-endmanagement investment companies. NUV and NMI were incorporated under the state laws of Minnesota on April 8, 1987 and February 26, 1988, respectively. NUW was organized as a Massachusetts business trust on November 19, 2008. Current Fiscal Period: The end of the reporting period for the Funds is April 30, 2025, and the period covered by these Notes to Financial Statements is the six months ended April 30, 2025 (the “current fiscal period”). Investment Adviser and Sub-Adviser: The Funds’ investment adviser is Nuveen Fund Advisors, LLC (the “Adviser”), a subsidiary of Nuveen, LLC (“Nuveen”). Nuveen is the investment management arm of Teachers Insurance and Annuity Association of America