Company: MYI
Filing Date: 2025-09-05
Form Type: 424B3
Source: 0001193125-25-196285
Chunk: 56

Company: BLACKROCK MUNIYIELD QUALITY FUND III, INC.
Filing Date: 2025-09-05
Form: 424B3
Chunk 56
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 of taxable income to shareholders by investing in tax-exemptor municipal securities in reliance at the time of purchase on an opinion of bond counsel to the issuer that the interest paid on those securities will be excludable from gross income for U.S. federal income tax purposes. Such securities, however, may be determined to pay, or have paid, taxable income subsequent to the Acquiring Fund’s acquisition of the securities. In that event, the treatment of dividends previously paid or to be paid by the Acquiring Fund as “exempt interest dividends” could be adversely affected, subjecting the Acquiring Fund’s shareholders to increased U.S. federal income tax liabilities. Alternatively, the Acquiring Fund might enter into an agreement with the IRS to pay an agreed upon amount in lieu of the IRS adjusting individual shareholders’ income tax liabilities. If the Acquiring Fund agrees to enter into such an agreement, the Acquiring Fund’s yield could be adversely affected. Further, shareholders at the time the Acquiring Fund enters into such an agreement that were not shareholders when the dividends in question were paid would bear some cost for a benefit they did not receive. Federal tax legislation may limit the types and volume of bonds the interest on which qualifies for a federal income tax-exemption.As a result, current legislation and legislation that may be enacted in the future may affect the availability of municipal securities for investment by the Acquiring Fund. In addition, future laws, regulations, rulings or court decisions may cause interest on municipal securities to be subject, directly or indirectly, to U.S. federal income taxation or interest on state municipal securities to be subject to state or local income taxation, or the value of state municipal securities to be subject to state or local intangible personal property tax, or may otherwise prevent the Acquiring Fund from realizing the full current benefit of the tax-exemptstatus of such securities. Any such change could also affect the market price of such securities, and thus the value of an investment in the Acquiring Fund. Alternative Minimum Tax and Capital Gain Tax Risk. The Acquiring Fund expects that a portion of the interest or income it produces will be includable in alternative minimum taxable income. There is no limit on the portion of the Acquiring Fund’s assets that may be invested in municipal securities the income from which would be subject to the alternative minimum tax. Exempt interest dividends also are likely to be subject to state and local income taxes. Distributions of any capital gain or other taxable income will be taxable to shareholders. The 25

Acquiring Fund’s common shares may not