Semi-Annual Report by Investment Company (Form N-CSRS)

(b) Not applicable.

Item 2. Code of Ethics.

Item applicable only to annual report on Form N-CSR.

Item 3. Audit Committee Financial Expert.

Item applicable only to annual report on Form N-CSR.

Item 4. Principal Accountant Fees and Services.

Item applicable only to annual report on Form N-CSR.

Item 5. Audit Committee of Listed Registrants.

(a) Not applicable.

(b) Not applicable.

Item 6. Investments.

(a) The Schedule of Investments is included as part of the Financial Statements included under Item 7(a) of this Form N-CSR.

(b) Not applicable.

Item 7. Financial Statements and Financial Highlights for Open-EndManagement Investment Companies

(a) U.S. Monthly Income Fund for Puerto Rico Residents, Inc.'s (the "Fund" or the "Registrant") Financial Statements are attached herewith.

(b) The Registrant's Financial Highlights are included as part of the Financial Statements included under Item 7(a) of this Form N-CSR.

U.S. MONTHLY INCOME FUND    

FOR PUERTO RICO RESIDENTS, INC.

SEMI-ANNUAL REPORT 

June 30, 2025   

U.S. MONTHLY INCOME FUND FOR PUERTO RICO RESIDENTS, INC.

Table of Contents

The following table includes selected data for a share outstanding throughout the periods and other performance information derived from the financial statements. It should be read in conjunction with the financial statements and notes thereto.

The accompanying notes are an integral part of these financial statements.

1

The following table includes selected data for a share outstanding throughout the periods and other performance information derived from the financial statements. It should be read in conjunction with the financial statements and notes thereto.

The accompanying notes are an integral part of these financial statements.

2

The accompanying notes are an integral part of these financial statements.

3

The accompanying notes are an integral part of these financial statements.

4

The accompanying notes are an integral part of these financial statements.

5

The accompanying notes are an integral part of these financial statements.

6

The accompanying notes are an integral part of these financial statements.

7

U.S. Monthly Income Fund for Puerto Rico Residents, Inc.

Notes to Financial Statements

For the period from January 1, 2025, to June 30, 2025 (Unaudited)

U.S. Monthly Income Fund for Puerto Rico Residents, Inc. (the "Fund") is a non-diversified, open-endmanagement investment company. The Fund is a corporation organized under the laws of the Commonwealth of Puerto Rico and is registered as an investment company under the Investment Company Act of 1940, as amended (the "1940 Act"), as of May 14, 2021. Prior to such date and since inception, the Fund was registered and operated under the Puerto Rico Investment Companies Act of 1954, as amended. The Fund's offerings of securities are registered under the Securities Act of 1933, as amended. The Fund was incorporated on September 27, 2012, and commenced operations on January 18, 2013.

The Fund is divided into a Puerto Rico taxable securities portion and a U.S. portion consisting primarily of United States municipal securities. UBS Asset Managers of Puerto Rico, a division of UBS Trust Company of Puerto Rico ("UBSTC"), is the Fund's Investment Adviser (the "Investment Adviser") and directly manages the Puerto Rico taxable securities portion. Nuveen Asset Management, LLC is the sub-investmentadviser (the "Sub-Adviser")managing the U.S. portion. UBSTC is also the Fund's Administrator (the "Administrator") and the Transfer Agent (the "Transfer Agent").

The Fund's investment objective is to provide current income, consistent with the preservation of capital. There is no assurance that the Fund will achieve its investment objective.

Certain charter provisions of the Fund might be void and unenforceable under the 1940 Act including, without limitation, provisions (i) permitting indemnification of officers and directors to the fullest extent permitted by Puerto Rico law, (ii) setting forth the required vote for changes to fundamental policies of the Fund, and (iii) stating that, to the fullest extent permitted by Puerto Rico law, no officer or director will be liable to the Fund or shareholders.

The following is a summary of the Fund's significant accounting policies:

Use of Estimates in Financial Statements Preparation

The Fund is an investment company that applies the accounting and reporting guidance applicable to investment companies in the Financial Accounting Standards Board ("FASB") Accounting Standards Codification Topic 946, Financial Services-Investment Companies (ASC 946). The financial statements are prepared in accordance with U.S. generally accepted accounting principles ("GAAP"), which requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Actual results could differ from those estimates.

Net Asset Value Per Share

The net asset value ("NAV") per share of the Fund is determined daily by the Administrator after the close of trading on the New York Stock Exchange (NYSE), or if such day is not a business day in New York or Puerto Rico, on the next succeeding business day. The NAV per share is computed by dividing the total assets of the Fund, less its liabilities, by the total number of shares outstanding.

Valuation of Investments

The Fund's assets are valued by UBSTC on the basis of valuations provided by pricing services or by dealers which were approved by Fund management and the Board of Directors (the "Board"). In arriving at their valuation, pricing sources may use both a grid matrix of securities values as well as the evaluations of their staff. The valuation, in either case, could be based on information concerning actual market transactions and quotations from dealers or a grid matrix performed by an outside vendor that reviews certain market and security factors to arrive at a bid price for a specific security.

8

U.S. Monthly Income Fund for Puerto Rico Residents, Inc.

Notes to Financial Statements

For the period from January 1, 2025, to June 30, 2025 (Unaudited)

Certain Puerto Rico obligations have a limited number of market participants and, thus, might not have a readily ascertainable market value and may have periods of illiquidity. If the Fund has securities for which quotations are not readily available from any source, they will be fair valued by or under the direction of the Investment Adviser utilizing quotations and other information concerning similar securities obtained from recognized dealers. The Investment Adviser can override any price that it believes is not consistent with market conditions. Valuation adjustments are limited to those necessary to ensure that the financial instrument's fair value is adequately representative of the price that would be received or paid in the marketplace. These adjustments include amounts that reflect counterparty credit quality, constraints on liquidity, and unobservable parameters that are applied consistently.

The Investment Adviser has established a Valuation Committee (the "Committee") which is responsible for overseeing the pricing and valuation of all securities held by the Fund. The Committee operates under pricing and valuation policies and procedures established by the Investment Adviser and approved by the Board. The policies and procedures set forth the mechanisms and processes to be employed on a daily basis related to the valuation of portfolio securities for the purpose of determining the NAV of the Fund. The Committee reports to the Board on a regular basis. At June 30, 2025, no portfolio securities were fair valued by the Committee.

GAAP provides a framework for measuring fair value and expands disclosures about fair value measurements and requires disclosure surrounding the various inputs that are used in determining the fair value of the Fund's investments. These inputs are summarized in three broad levels listed below:

Securities and other assets that cannot be priced according to the methods described above are valued based on policies and procedures approved by the Committee. In the event that unobservable inputs are used when determining such valuations, the securities will be classified as Level 3 in the fair value hierarchy. Altering one or more unobservable inputs may result in a significant change to a Level 3 security's fair value measurement. The Fund maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the observable inputs be used when available. Fair value is based upon quoted market prices when available.

The estimated fair value may be subjective in nature and may involve uncertainties and matters of significant judgment for certain financial instruments. Changes in the underlying assumptions used in calculating fair value could significantly affect the results. Therefore, the estimated fair value may materially differ from the value that could actually be realized on sale.

The inputs and methodology used for valuing securities or level assigned are not necessarily an indication of the risk associated with investing in those securities.

9

U.S. Monthly Income Fund for Puerto Rico Residents, Inc.

Notes to Financial Statements

For the period from January 1, 2025, to June 30, 2025 (Unaudited)

Following is a description of the Fund's valuation methodologies used for assets and liabilities measured at fair value:

Puerto Rico Taxable Obligations: Prices for these securities are obtained from third-party service providers. Third-party service providers use a pricing methodology based on observable market inputs. These securities trade in over-the-countermarkets. Quoted prices are based on recent trading activity for similar instruments. These bonds are classified as Level 2.

Mortgage and Other Asset-Backed Securities: Fair value for these securities is mostly obtained from third-party pricing service providers that use a pricing methodology based on observable market inputs. Certain agency, mortgage, and other asset-backed securities ("MBS") are priced based on a bond's theoretical value from similar bonds, the term "similar" being defined by credit quality and market sector. Their fair value incorporates an option adjusted spread. The agency MBS are classified as Level 2.

U.S. Municipal Obligations: The fair value of U.S. municipal obligations is obtained from third-party pricing service providers that use a pricing methodology based on an active exchange market and quoted market prices for similar securities. These securities are classified as Level 2.

Futures contracts: Futures contracts are valued at the quoted daily settlement prices established by the exchange on which they trade and are classified as Level 1.

The following is a summary of the portfolio by inputs used as of June 30, 2025, in valuing the Fund's assets carried at fair value:

There were no Level 3 securities during the period from January 1, 2025, to June 30, 2025.

There were no transfers into or out of Level 3 during the period from January 1, 2025, to June 30, 2025.

Taxation

As a registered investment company under the 1940 Act, the Fund will not be subject to Puerto Rico income tax for any taxable year if it distributes at least 90% of its taxable net investment income for such year, as determined for these purposes pursuant to section 1112.01(a)(2) of the Puerto Rico Internal Revenue Code of 2011, as amended. Accordingly, as the Fund intends to meet this distribution requirement, the income earned by the Fund is not subject to Puerto Rico income tax at the Fund level.

The Fund can invest in taxable and tax-exemptsecurities. In general, distributions of taxable income dividends, if any, to Puerto Rico individuals, estates, and trusts are subject to a Puerto Rico withholding tax of 15% of the dividends distributed if certain requirements are met. Puerto Rico tax withholdings are effected at the time of payment of the corresponding dividend. Individual shareholders may be subject to a Puerto Rico alternate basic tax on certain Fund distributions. Certain Puerto Rico entities receiving taxable income dividends are entitled to claim an 85% dividends received deduction.

10

U.S. Monthly Income Fund for Puerto Rico Residents, Inc.

Notes to Financial Statements

For the period from January 1, 2025, to June 30, 2025 (Unaudited)

Moreover, distribution of capital gains dividends, if any, to (a) Puerto Rico individuals, estates, and trusts are subject to a Puerto Rico income tax of 15% of the dividends distributed, and (b) Puerto Rico corporations are subject to a Puerto Rico income tax of 20% of the dividends distributed. Fund shareholders are advised to consult their own tax advisers.

For U.S. federal income tax purposes, the Fund is treated as a foreign corporation and does not intend to be engaged in a trade or business within the United States. As a foreign corporation not engaged in a trade or business in the United States, the Fund should generally not be subject to U.S. income tax on gains derived from the sale or exchange of personal property. Nevertheless, if it is determined that the Fund is engaged in a trade or business within the United States for purposes of the U.S. Internal Revenue Code of 1986, as amended ("U.S. Code"), and the Fund has taxable income that is effectively connected with such U.S. trade or business, the Fund will be subject to regular U.S. corporate income tax on its effectively connected taxable income, and maybe to a 30% branch profits tax and state and local taxes as well. Also, the Fund is subject to a 30% U.S. withholding tax on certain types of income from sources within the U.S., such as dividends and interest.

An investment in the Fund is designed solely for Puerto Rico residents due to the Fund's specific tax features. The Fund does not intend to qualify as a Regulated Investment Company ("RIC") under Subchapter M of the U.S. Code, and consequently an investor that is not (i) an individual who has his or her principal residence in Puerto Rico or (ii) a person, other than an individual, that has its principal office and principal place of business in Puerto Rico will not receive the tax benefits of an investment in a typical U.S. mutual fund (such as "RIC" tax treatment, i.e., availability of pass-through tax status for non-PuertoRico residents) and may have adverse tax consequences for U.S. federal income tax purposes. If United States holders (which includes, but is not limited to, (i) citizens and residents of the United States who are not Puerto Rico individuals and (ii) corporations organized in the United States) invest in the Fund, such United States holders generally will be taxed on any dividend or interest paid by the Fund as ordinary income at the time such holders receive the dividend or interest or when it accrues, depending on such holder's method of accounting for tax purposes. Additionally, United States holders will be taxed on any gain on the sale of an investment in the Fund.

FASB Accounting Standards Codification Topic 740, Income Taxes (ASC 740) requires the evaluation of tax positions taken or expected to be taken in the course of preparing the Fund's tax returns to determine whether the tax positions are "more-likely-than-not"of being sustained by the applicable tax authority. Tax positions not deemed to meet the "more-likely-than-not"threshold are recorded as a tax benefit or expense in the current year. Management has analyzed the Fund's tax positions taken on its Puerto Rico income tax returns for all open tax years (the prior four tax years) and has concluded that there are no uncertain tax positions. On an ongoing basis, management will monitor the Fund's tax position to determine if adjustments to this conclusion are necessary. The Fund recognizes interest and penalties, if any, related to uncertain tax positions as income tax expenses in the Statement of Operations. During the period from January 1, 2025, to June 30, 2025, the Fund did not incur any interest or penalties.

Statement of Cash Flows

The Fund issues its shares, invests in securities, and distributes dividends from net investment income and net realized gains which are paid in cash. These activities are reported in the Statement of Changes in Net Assets. Additional information on cash receipts and payments is presented in the Statement of Cash Flows.

Accounting practices that do not affect the reporting of activities on a cash basis include carrying investments at fair value and amortizing premiums or discounts on debt obligations. Cash, as presented on the Statement of Assets and Liabilities, does not include short-term investments.

11

U.S. Monthly Income Fund for Puerto Rico Residents, Inc.

Notes to Financial Statements

For the period from January 1, 2025, to June 30, 2025 (Unaudited)

Dividends and Distributions to Shareholders

The Fund intends to distribute to its shareholders substantially all of its net investment income. However, the Fund may elect to distribute less of its net investment income if, in the judgment of the Investment Adviser, such reduced distribution is in the best economic interests of the Fund's shareholders. Such distributions, if any, shall be paid by the Fund on no less than a monthly basis. Distributions on shares will be reinvested at the NAV per share determined on the ex-dividenddate.

Futures Contracts

Futures contracts provide for the future exchange of a specified security at a specified future time and at a specified price. Upon entering into a financial futures contract, the Fund is required to pledge to a Futures Commission Merchant (FCM), an amount per contract as determined by an exchange of cash, U.S. government securities, or other assets, otherwise known as "initial margin". Subsequent payments, known as variation margin, are made or received by the Fund each day, depending on the daily fluctuations in the price of the futures contract. The Fund recognizes an unrealized gain or loss equal to the aggregate daily variation margin until the contract is closed out, at which time the Fund realizes a gain or loss. There are several risks accompanying the utilization of futures contracts. Positions in futures contracts may be closed only on an exchange. While the Fund plans to utilize futures contracts only if there exists an active market for such contracts, there is no guarantee that a liquid market will exist for the contracts at a specified time.

Furthermore, because, by definition, futures contracts reflect expectations of projected reference instrument or index price levels, and not necessarily current market levels, circumstances may result in discrepancies between changes in the price of the futures contract and the movement in the reference instrument or index. The absence of a perfect price correlation between the futures contract and its underlying instrument or index could stem from, among other things, changing assumptions regarding the financing cost of the underlying instrument or index, changing assumptions regarding the implied volatility of the underlying index or instrument, and/or changing assumptions regarding the ease of sourcing the instrument or index for eventual delivery into the futures contract.

The Fund utilizes U.S. treasury short futures contracts that are traded at the Chicago Mercantile Exchange (CME), a registered futures exchange. By investing in short futures contracts, the Investment Adviser seeks to alter the interest rate sensitivity, also known as duration, of the Fund. The relationship between interest rates on the underlying assets of the Fund and on the value of short futures contracts may or may not remain constant. As a result, the use of short futures may or may not alter the interest rate sensitivity of the Fund as expected by the Investment Advisor and may result in unexpected gains or losses. There were no futures contracts outstanding as of June 30, 2025.

Reverse Repurchase Agreements

Under these agreements, the Fund sells portfolio securities, receives cash in exchange, and agrees to repurchase the securities at a mutually agreed upon date and price. Ordinarily, those counterparties with which the Fund enters into these agreements require delivery of collateral, nevertheless, the Fund retains effective control over such collateral through the agreement to repurchase the collateral on or by the maturity of the reverse repurchase agreement. These transactions are treated as financings and recorded as liabilities. Therefore, no gain or loss is recognized on the transaction, and the securities pledged as collateral remain recorded as assets of the Fund. The Fund enters into reverse repurchase agreements that do not have third-party custodians, with the collateral delivered directly to the counterparty. Pursuant to the terms of the standard Securities Industry and Financial Markets Association (SIFMA) Master Repurchase Agreement, the counterparty is free to repledge or rehypothecate the collateral, provided it is delivered to the Fund upon maturity of the reverse repurchase agreement. This arrangement allows the Fund to receive better interest rates and pricing on the reverse repurchase agreements. While the Fund cannot monitor the rehypothecation of collateral, it does monitor the market value of the collateral versus the repurchase amount, that the

12

U.S. Monthly Income Fund for Puerto Rico Residents, Inc.

Notes to Financial Statements

For the period from January 1, 2025, to June 30, 2025 (Unaudited)

income from the collateral is paid to the Fund on a timely basis, and that the collateral is returned at the end of the reverse repurchase agreement. These agreements involve the risk that the market value of the securities purchased with the proceeds from the sale of securities received by the Fund may decline below the price of the securities that the Fund is obligated to repurchase, and that the value of the collateral posted by the Fund increases in value and the counterparty does not return it. Because the Fund borrows under reverse repurchase agreements based on the estimated fair value of the pledged assets, the Fund's ongoing ability to borrow under its reverse repurchase facilities may be limited, and its lenders may initiate margin calls in the event of adverse changes in the market. A decrease in market value of the pledged assets may require the Fund to post additional collateral or otherwise sell assets at a time when it may not be in the best interest of the Fund to do so. There were no reverse repurchase agreements outstanding as of June 30, 2025.

Preferred Shares

Pursuant to the Fund's Certificate of Incorporation, as amended and supplemented, the Fund's Board is authorized to issue up to 12,000,000 preferred shares with a par value of $25, in one or more series. During the period from January 1, 2025, to June 30, 2025, no preferred shares were issued or outstanding.

Operating Segments

In this reporting period, the Fund adopted FASB Accounting Standards Update 2023-07,Segment Reporting ("Topic 280") - Improvementsto Reportable Segment Disclosures (ASU 2023-007).Adoption of the new standard impacted financial statement disclosures only and did not affect the Fund's financial position or the results of its operations. ASU 2023-07is effective for fiscal years beginning after December 15, 2023, and required retrospective application for all periods presented within the financial statements.

An operating segment is defined in Topic 280 as a component of a public entity that engages in business activities from which it may recognize revenues and incur expenses, has operating results that are regularly reviewed by the public entity's chief operating decision maker ("CODM") to make decisions about resources to be allocated to the segment and asses its performance, and has discrete financial information available. The Asset Liability Committee ("ALCO") of the Fund's Investment Adviser acts as the Fund's CODM. Since its commencement, the Fund operates and is managed as a single operating segment, as the CODM monitors the operating results of the Fund as a whole and the Fund's long-term strategic portfolio allocation is pre-determinedin accordance with the term of its prospectus, based on a defined investment strategy which is executed by the Fund's portfolio managers as a team. The financial information in the form of the Fund's portfolio investments, geographic allocation, leverage, net investment income, total return, expense ratio and changes in net assets resulting from operations and net subscriptions and redemptions, which are used by the CODM to assess the segment's performance versus the Fund's comparative benchmark and to make resource allocation decisions for the Fund's single segment is consistent with that presented within the Fund's financial statements. The accounting policies of the Fund are consistent with those described in these Notes to Financial Statements. Segment assets are reflected on the accompanying Statements of Assets and Liabilities as "total assets" and significant segment expenses are listed on the accompanying Statement of Operations.

Other

Security transactions are accounted for on a trade date plus one basis (T+1) for daily NAV calculations. However, for financial reporting purposes, investment transactions are reported on trade date. Realized gains and losses on security transactions are determined on the identified cost method. Premiums and discounts on securities purchased are amortized using the interest method over the life or the expected life of the respective securities. Premiums are amortized at the earliest call date for

13

U.S. Monthly Income Fund for Puerto Rico Residents, Inc.

Notes to Financial Statements

For the period from January 1, 2025, to June 30, 2025 (Unaudited)

any applicable securities. Interest and dividend income is accrued on a daily basis, except when collection is not expected.

Advisory Fees:

Pursuant to an investment advisory contract (the "Advisory Agreement") with UBS Asset Managers of Puerto Rico, a division of UBSTC, and subject to the supervision of the Board, the Fund receives investment advisory services in exchange for a fee. The investment advisory fee will not exceed 0.75% of the Fund's average daily gross assets (including assets purchased with the proceeds of leverage). For the period from January 1, 2025, to June 30, 2025, investment advisory fees amounted to $272,029. The Investment Advisor voluntarily waived investment advisory fees in the amount of $90,676, for a net fee of $181,353. The investment advisory fees payable amounted to $29,559 as of June 30, 2025.

Sub-AdvisoryFees:

The Advisory Agreement authorizes the Investment Adviser to retain one or more sub-advisersfor the management of the Fund. The Investment Adviser has entered into a sub-advisoryagreement (the "Sub-AdvisoryAgreement") with Nuveen Asset Management, LLC (the "Sub-Adviser")on behalf of the Fund. Pursuant to the Sub-AdvisoryAgreement, and under the supervision of the Investment Adviser and the Board, the Sub-Adviserwill be responsible for the day-to-dayinvestment of primarily U.S. municipal securities. The Investment Adviser will pay the Sub-Adviseran annual fee not to exceed 0.25% of the average daily gross assets of the pool of assets managed by the Sub-Adviser.

Administration, Custodian, and Transfer Agent Fees:

UBSTC also provides administrative, custody, and transfer agency services pursuant to Administration, Custody, and Transfer Agency, Registrar, and Shareholder Servicing Agreements (the "Transfer Agency Agreement"), respectively. UBSTC, as Custodian, has engaged JP Morgan Chase Bank N.A. to act as the sub-custodianfor the Fund. UBSTC, as Transfer Agent, has engaged Bank of New York Mellon Investment Servicing ("BNYM") to act as recordkeeping and shareholder servicing agent for the Fund. The compensation paid by the Fund to the Transfer Agent under the Transfer Agency Agreement is equal to the compensation that the Transfer Agent is required to pay BNYM for services to the Fund up to a maximum amount of 0.05% of the Fund's average net assets, payable monthly. UBSTC provides facilities and personnel to the Fund for the performance of its administration duties. For the period from January 1, 2025, to June 30, 2025, the gross fee for administration services amounted to $54,406. The administrative, custody, and transfer agency fees payable amounted to $8,867 as of June 30, 2025.

Expense Limitation and Reimbursement Agreement:

UBSTC and the Fund have entered into an agreement whereby UBSTC agrees to reduce its compensation as set forth in the Investment Advisory Agreement and to assume all or a portion of the ordinary operating expenses of the Fund, including but not limited to shareholder services, custodian and transfer agency fees, legal, regulatory, and accounting fees, printing costs and registration fees ("Other Expenses"), subject to future reimbursement by the Fund, in order to ensure that total annual Fund operating expenses do not exceed 1.00% of the Fund's daily gross assets per annum with respect to both Class A and Class P Shares, as set forth in the Prospectus. The Fund will reimburse UBSTC for reduced compensation and/or Other Expenses paid by UBSTC when net total expenses

14

U.S. Monthly Income Fund for Puerto Rico Residents, Inc.

Notes to Financial Statements

For the period from January 1, 2025, to June 30, 2025 (Unaudited)

for the Fund fall below 1.00% for the annual period, provided that such reimbursement is made within three years after UBSTC reduced compensation and/or paid the expenses and does not cause annual operating expenses to exceed 1.00%. The agreement is effective through May 1, 2026, and may be renewed for successive one-yearperiods. The agreement may be terminated upon 30 days' notice by a majority of the non-interested directors of the Fund or by a vote of a majority of the outstanding voting securities of the Fund. For Class A, the excess expenses potentially reimbursable to UBSTC at June 30, 2025, amounted to $680,486, of which $136,215 expires at December 31, 2028, $158,490 expires at December 31, 2027, and $385,781 expires at December 31, 2026. For Class P, the excess expenses potentially reimbursable to UBSTC at June 30, 2025, amounted to $257,068, of which $58,921 expires at December 31, 2028, $63,451 expires at December 31, 2027, $121,394 expires at December 31, 2026, and $13,302 expires at December 31, 2025.

Director Fees:

The six independent directors of the Fund's Board are paid based upon an agreed fee of $1,000 per fund for each quarterly Board meeting, $500 for each special Board meeting, and $500 per fund for each Audit Committee meeting. For the period from January 1, 2025, to June 30, 2025, the independent directors of the Fund were paid an aggregate compensation of $15,230. The Directors fees payable amounted to $13,377 as of June 30, 2025.

Affiliate-Other:

The Fund has cash due from UBSTC amounting to $358,500, consisting of a cash portion that is invested in an overnight swift account for operational purposes.

The Fund is authorized to issue up to 88,000,000 common shares, par value $0.01 per share.

Effective as of April 1, 2022, the Fund began issuing Class P Shares. Also, effective as of April 1, 2022, Class A Shares are no longer being offered except as part of the Fund's dividend reinvestment plan or in exchange for Class A of certain affiliated funds.

Capital share transactions for the period from January 1, 2025, to June 30, 2025, and for the fiscal year ended December 31, 2024, for Class A and Class P, were as follows:

15

U.S. Monthly Income Fund for Puerto Rico Residents, Inc.

Notes to Financial Statements

For the period from January 1, 2025, to June 30, 2025 (Unaudited)

Transactions in common shares for the period from January 1, 2025, to June 30, 2025, and for the fiscal year ended December 31, 2024, for Class A and Class P, were as follows: