Company: NMZ
Filing Date: 2025-01-06
Form Type: N-CSR
Source: 0001193125-25-002222
Chunk: 83

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-01-06
Form: N-CSR
Chunk 83
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 |        |     |               |
|                                                                               |     | Year Ended       
 October 31, 2023 |     |        |     |        |     |               |
| NZF                                                                           |     |                  |     | Series |     | Shares |     |        Amount |

201 Notes to Financial Statements (continued)

| VRDP Shares redeemed |     | 3 |     | -500 |     | $(50,000,000) |

| 7. | Income Tax Information |

Each Fund is a separate taxpayer for federal income tax purposes. Each Fund intends to distribute substantially all of its net investment income and net capital gains to shareholders and otherwise comply with the requirements of Subchapter M of the Internal Revenue Code applicable to regulated investment companies. Therefore, no federal income tax provision is required. Each Fund intends to satisfy conditions that will enable interest from municipal securities, which is exempt from regular federal income tax, and in the case of NVG, the AMT applicable to individuals to retain such tax-exempt status when distributed to shareholders of the Funds. Net realized capital gains and ordinary income distributions paid by the Funds are subject to federal taxation. Each Fund files income tax returns in U.S. federal and applicable state and local jurisdictions. A Fund’s federal income tax returns are generally subject to examination for a period of three fiscal years after being filed. State and local tax returns may be subject to examination for an additional period of time depending on the jurisdiction. Management has analyzed each Fund’s tax positions taken for all open tax years and has concluded that no provision for income tax is required in the Fund’s financial statements. Differences between amounts for financial statement and federal income tax purposes are primarily due to timing differences in recognizing gains and losses on investment transactions. Temporary differences do not require reclassification. As of year end, permanent differences that resulted in reclassifications among the components of net assets relate primarily to distressed PIK bond adjustments, investments in partnerships, nondeductible expenses, paydowns, taxable market discount, taxes paid, and treatment of notional principal contracts. Temporary and permanent differences have no impact on a Fund’s net assets. As of year end, the aggregate cost and the net unrealized appreciation/(depreciation) of all investments for federal income tax purposes were as follows:

| Fund |     |   |      Tax Cost |     |   | Gross UnrealizedAppreciation |     |   |          Gross 
     Unrealized 
 (Depreciation) |     |   |            Net 
     Unrealized 
   Apprec