SEC Form N-CSR filed by Blackrock MuniYield New Jersey Fund, Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT

INVESTMENT COMPANIES

Investment Company Act file number: 811-06570

Name and address of agent for service: John M. Perlowski, Chief Executive Officer, BlackRock MuniYield New Jersey Fund, Inc., 55 East 52^nd Street, New York, NY 10055

Registrant’s telephone number, including area code: (800) 882-0052, Option 4

Date of fiscal year end: 07/31/2021

Date of reporting period: 07/31/2021

Item 1 – Report to Stockholders

(a) The Report to Shareholders is attached herewith.

BlackRock MuniYield California Fund, Inc. (MYC)

BlackRock MuniYield New Jersey Fund, Inc. (MYJ)

Table of Contents

Municipal Market Conditions

Municipal bonds posted positive total returns during the period despite rising interest rates as the economy normalized from the pandemic-induced economic shutdown. The asset class benefited from favorable supply and demand dynamics and improved credit fundamentals amid considerable fiscal stimulus and a quicker-than-expected rebound in state and local government revenues. As a result, municipal bonds generated substantial excess returns versus duration-matched U.S. Treasuries, and longer duration and lower credit quality strategies outperformed. Despite broad strength, the market contended with brief periods of volatility surrounding U.S. election uncertainty as well as a temporary valuation-based market correction in late February.

A Closer Look at Yields

Consistent municipal outperformance has resulted in stretched valuations. After dislocating at the height of the pandemic, municipal-to-U.S. Treasury ratios posted all-time lows in February 2021 and remained well below historical averages.

Financial Conditions of Municipal Issuers

The COVID-19 pandemic has been an unprecedented shock to the system impacting nearly every sector in the municipal market. Fortunately, most states and municipalities were in excellent fiscal health before the crisis, and the federal government delivered another $350 billion injection. Direct state and local government aid has provided additional support to own-source government tax receipts, which continue to outperform the dire predictions made in early 2020. Essential public services such as power, water, and sewer remain protected segments. State housing authority bonds, flagship universities, and strong national and regional health systems have absorbed the impact of the economic shock. While some segments still confront financial pressures, the combination of new federal stimulus and vaccine distribution is boosting economic activity and, consequently, increasing revenue receipts in these sectors as well. Critical providers (safety net hospitals, mass transit systems, airports) with limited resources may still experience fiscal strain but the additional aid and the re-opening of the economy will continue to support operating results in the second half of 2021, despite the surging delta variant of the coronavirus. BlackRock anticipates that a small subset of the market, mainly non-rated stand-alone projects, will remain susceptible to credit deterioration. However, the risk of new mandated lockdowns is significantly diminished, and we expect limited impact on the high fundamental quality of state and local governments as well as essential service providers. While credit fundamentals have improved noticeably across the municipal space, BlackRock advocates careful credit selection as the market must still navigate near-term uncertainty.

The opinions expressed are those of BlackRock as of July 31, 2021 and are subject to change at any time due to changes in market or economic conditions. The comments should not be construed as a recommendation of any individual holdings or market sectors. Investing involves risk including loss of principal. Bond values fluctuate in price so the value of your investment can go down depending on market conditions. Fixed income risks include interest-rate and credit risk. Typically, when interest rates rise, there is a corresponding decline in bond values. Credit risk refers to the possibility that the bond issuer will not be able to make principal and interest payments. There may be less information on the financial condition of municipal issuers than for public corporations. The market for municipal bonds may be less liquid than for taxable bonds. Some investors may be subject to Alternative Minimum Tax (“AMT”). Capital gains distributions, if any, are taxable.

The S&P Municipal Bond Index, a broad, market value-weighted index, seeks to measure the performance of the U.S. municipal bond market. All bonds in the index are exempt from U.S. federal income taxes or subject to the AMT. Past performance is not an indication of future results. Index performance is shown for illustrative purposes only. It is not possible to invest directly in an index.

The Benefits and Risks of Leveraging

The Funds may utilize leverage to seek to enhance the distribution rate on, and net asset value (“NAV”) of, their common shares (“Common Shares”). However, there is no guarantee that these objectives can be achieved in all interest rate environments.

In general, the concept of leveraging is based on the premise that the financing cost of leverage, which is based on short-term interest rates, is normally lower than the income earned by a Fund on its longer-term portfolio investments purchased with the proceeds from leverage. To the extent that the total assets of each Fund (including the assets obtained from leverage) are invested in higher-yielding portfolio investments, each Fund’s shareholders benefit from the incremental net income. The interest earned on securities purchased with the proceeds from leverage (after paying the leverage costs) is paid to shareholders in the form of dividends, and the value of these portfolio holdings (less the leverage liability) is reflected in the per share NAV.

To illustrate these concepts, assume a Fund’s Common Shares capitalization is $100 million and it utilizes leverage for an additional $30 million, creating a total value of $130 million available for investment in longer-term income securities. If prevailing short-term interest rates are 3% and longer-term interest rates are 6%, the yield curve has a strongly positive slope. In this case, a Fund’s financing costs on the $30 million of proceeds obtained from leverage are based on the lower short-term interest rates. At the same time, the securities purchased by a Fund with the proceeds from leverage earn income based on longer-term interest rates. In this case, a Fund’s financing cost of leverage is significantly lower than the income earned on a Fund’s longer-term investments acquired from such leverage proceeds, and therefore the holders of Common Shares (“Common Shareholders”) are the beneficiaries of the incremental net income.

However, in order to benefit Common Shareholders, the return on assets purchased with leverage proceeds must exceed the ongoing costs associated with the leverage. If interest and other costs of leverage exceed a Fund’s return on assets purchased with leverage proceeds, income to shareholders is lower than if a Fund had not used leverage. Furthermore, the value of the Funds’ portfolio investments generally varies inversely with the direction of long-term interest rates, although other factors can influence the value of portfolio investments. In contrast, the amount of each Fund’s obligations under its respective leverage arrangement generally does not fluctuate in relation to interest rates. As a result, changes in interest rates can influence the Funds’ NAVs positively or negatively. Changes in the future direction of interest rates are very difficult to predict accurately, and there is no assurance that a Fund’s intended leveraging strategy will be successful.

The use of leverage also generally causes greater changes in each Fund’s NAV, market price and dividend rates than comparable portfolios without leverage. In a declining market, leverage is likely to cause a greater decline in the NAV and market price of a Fund’s Common Shares than if the Fund were not leveraged. In addition, each Fund may be required to sell portfolio securities at inopportune times or at distressed values in order to comply with regulatory requirements applicable to the use of leverage or as required by the terms of leverage instruments, which may cause the Fund to incur losses. The use of leverage may limit a Fund’s ability to invest in certain types of securities or use certain types of hedging strategies. Each Fund incurs expenses in connection with the use of leverage, all of which are borne by Common Shareholders and may reduce income to the Common Shares. Moreover, to the extent the calculation of each Fund’s investment advisory fees includes assets purchased with the proceeds of leverage, the investment advisory fees payable to the Funds’ investment adviser will be higher than if the Funds did not use leverage.

To obtain leverage, each Fund has issued Variable Rate Demand Preferred Shares (“VRDP Shares” or “Preferred Shares”) and/or leveraged its assets through the use of tender option bond trusts (“TOB Trusts”) as described in the Notes to Financial Statements.

Under the Investment Company Act of 1940, as amended (the “1940 Act”), each Fund is permitted to issue debt up to 33 1/3% of its total managed assets or equity securities (e.g., Preferred Shares) up to 50% of its total managed assets. A Fund may voluntarily elect to limit its leverage to less than the maximum amount permitted under the 1940 Act. In addition, a Fund may also be subject to certain asset coverage, leverage or portfolio composition requirements imposed by the Preferred Shares’ governing instruments or by agencies rating the Preferred Shares, which may be more stringent than those imposed by the 1940 Act.

If a Fund segregates or designates on its books and records cash or liquid assets having a value not less than the value of a Fund’s obligations under the TOB Trust (including accrued interest), then the TOB Trust is not considered a senior security and is not subject to the foregoing limitations and requirements imposed by the 1940 Act.

Derivative Financial Instruments

The Funds may invest in various derivative financial instruments. These instruments are used to obtain exposure to a security, commodity, index, market, and/or other assets without owning or taking physical custody of securities, commodities and/or other referenced assets or to manage market, equity, credit, interest rate, foreign currency exchange rate, commodity and/or other risks. Derivative financial instruments may give rise to a form of economic leverage and involve risks, including the imperfect correlation between the value of a derivative financial instrument and the underlying asset, possible default of the counterparty to the transaction or illiquidity of the instrument. The Funds’ successful use of a derivative financial instrument depends on the investment adviser’s ability to predict pertinent market movements accurately, which cannot be assured. The use of these instruments may result in losses greater than if they had not been used, may limit the amount of appreciation a Fund can realize on an investment and/or may result in lower distributions paid to shareholders. The Funds’ investments in these instruments, if any, are discussed in detail in the Notes to Financial Statements.

Investment Objective

BlackRock MuniYield California Fund, Inc.’s (MYC) (the “Fund”) investment objective is to provide shareholders with as high a level of current income exempt from U.S. federal and California income taxes as is consistent with its investment policies and prudent investment management. The Fund seeks to achieve its investment objective by investing at least 80% of its assets in municipal obligations exempt from U.S. federal income taxes (except that the interest may be subject to the federal alternative minimum tax) and California income taxes. Under normal market conditions, the Fund invests primarily in long-term municipal obligations that are investment grade quality, or are considered by the Fund’s investment adviser to be of comparable quality, at the time of investment. The Fund may invest up to 20% of its total assets in securities that are rated below investment grade, or are considered by the Fund’s investment adviser to be of comparable quality, at the time of purchase. The Fund may invest directly in securities or synthetically through the use of derivatives.

No assurance can be given that the Fund’s investment objective will be achieved.

Fund Information

Market Price and Net Asset Value Per Share Summary

TOTAL RETURN BASED ON A $10,000 INVESTMENT

Performance Summary for the Period Ended July 31, 2021

Returns for the period ended July 31, 2021 were as follows:

Performance results may include adjustments made for financial reporting purposes in accordance with U.S. generally accepted accounting principles.

Past performance is not an indication of future results.

More information about the Fund’s historical performance can be found in the “Closed End Funds” section of blackrock.com.

The following discussion relates to the Fund’s absolute performance based on NAV:

Despite rising yields (and falling prices) for U.S. Treasuries, municipal bonds produced healthy gains in the past 12 months. Tax-exempt bonds continued to rally off of their pandemic-driven lows due to the release of multiple coronavirus vaccines, better-than-expected growth, improving municipal finances and robust investor demand. The prospect of substantial fiscal stimulus and higher taxes were additional tailwinds for the market. These factors led to a decline in yield spreads versus U.S. Treasuries, fueling positive returns for municipal debt.

Following the outbreak of the pandemic in early 2020, the consensus expectation was that state and local issuers in California would be challenged by a sizable decline in revenues. Instead, the state’s credit rating stabilized at a strong AA level, reflecting its diversified economy, rising property values and strong performance for the equity market. The outward migration of residents and businesses looking to flee the state’s higher taxes did not result in credit deterioration. Instead, many wealthy residents looked to reduce their tax burdens by purchasing tax-exempt California municipal bonds of all credit qualities. The resulting record inflows into municipal bond funds created a dramatic imbalance in demand relative to the available supply of securities. In this favorable environment, yields declined (as prices rose) and yield spreads tightened significantly.

The Fund’s positions in long-duration securities delivered strong returns as yields declined and the yield curve flattened. (Duration is a measure of interest rate sensitivity.) Positions in high-yield securities and bonds on the lower end of the investment-grade spectrum were also leading contributors, as lower-quality bonds significantly outperformed the broader market. At the sector level, positions in transportation, tax-backed local, school district, utility and education issues made the largest contributions.

The use of leverage, which added to the Fund’s income and amplified the effect of rising prices, was a further positive. The Fund sought to manage interest rate risk using U.S. Treasury futures. Given that long-term Treasury yields rose, as prices fell, this strategy contributed to performance.

While all segments of the Fund posted gains, its positions in shorter-term debt produced lower relative returns.

The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.

Overview of the Fund’s Total Investments

Investment Objective

BlackRock MuniYield New Jersey Fund, Inc.’s (MYJ) (the “Fund”) investment objective is to provide shareholders with as high a level of current income exempt from U.S. federal income taxes and New Jersey personal income tax as is consistent with its investment policies and prudent investment management. The Fund seeks to achieve its investment objective by investing at least 80% of its assets in municipal obligations exempt from U.S. federal income taxes (except that the interest may be subject to the federal alternative minimum tax) and New Jersey personal income taxes. Under normal market conditions, the Fund invests primarily in long-term municipal obligations that are investment grade quality, or are considered by the Fund’s investment adviser to be of comparable quality, at the time of investment. The Fund may invest up to 20% of its total assets in securities that are rated below investment grade, or are considered by the Fund’s investment adviser to be of comparable quality, at the time of purchase. The Fund may invest directly in securities or synthetically through the use of derivatives.

No assurance can be given that the Fund’s investment objective will be achieved.

Fund Information

Market Price and Net Asset Value Per Share Summary

TOTAL RETURN BASED ON A $10,000 INVESTMENT

Performance Summary for the Period Ended July 31, 2021

Returns for the period ended July 31, 2021 were as follows:

Performance results may include adjustments made for financial reporting purposes in accordance with U.S. generally accepted accounting principles.

Past performance is not an indication of future results.

More information about the Fund’s historical performance can be found in the “Closed End Funds” section of blackrock.com.

The following discussion relates to the Fund’s absolute performance based on NAV:

Despite rising yields (and falling prices) for U.S. Treasuries, municipal bonds produced healthy gains in the past 12 months. Tax-exempt bonds continued to rally off of their pandemic-driven lows due to the release of multiple coronavirus vaccines, better-than-expected growth, improving municipal finances and robust investor demand. The prospect of substantial fiscal stimulus and higher taxes were additional tailwinds for the market. These factors led to a decline in yield spreads versus U.S. Treasuries, fueling positive returns for municipal debt.

New Jersey outperformed the broader national market in the period, as fundamentals strengthened due in large part to the American Rescue Plan and the fact that revenues came in higher than originally projected in the early days of the pandemic. The state recently announced an estimated $10 billion surplus at fiscal year-end 2021 (June 30) due to $4 billion in better-than-expected state tax collections and an allocation of $6 billion in aid from the federal American Rescue Plan.

Holdings in the state tax-backed sector made the largest contribution to performance, led by Puerto Rico. Revenue sectors, including education and transportation, also experienced meaningful price appreciation.

Positions in lower-rated issues, especially in the BBB category, outpaced higher-rated securities. Longer-dated securities—particularly those with maturities of 20 years and above—delivered strong returns, as well.

The Fund’s use of leverage, which augmented income and amplified the effect of rising prices, was a further contributor. The Fund actively sought to manage interest rate risk using U.S. Treasury futures. Since Treasury yields rose, as prices fell, this strategy contributed to results.

Reinvestment risk remained a headwind since the proceeds from bonds that matured or were called needed to be reinvested at lower yields compared to those issued when yields were higher.

The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.

Overview of the Fund’s Total Investments

For Fund compliance purposes, the Fund’s sector classifications refer to one or more of the sector sub-classifications used by one or more widely recognized market indexes or rating group indexes, and/or as defined by the investment adviser. These definitions may not apply for purposes of this report, which may combine such sector sub-classifications for reporting ease.

Affiliates

Investments in issuers considered to be affiliate(s) of the Fund during the year ended July 31, 2021 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

Derivative Financial Instruments Outstanding as of Period End

Futures Contracts

Derivative Financial Instruments Categorized by Risk Exposure

As of period end, the fair values of derivative financial instruments located in the Statements of Assets and Liabilities were as follows:

For the year ended July 31, 2021, the effect of derivative financial instruments in the Statements of Operations was as follows:

Average Quarterly Balances of Outstanding Derivative Financial Instruments

For more information about the Fund’s investment risks regarding derivative financial instruments, refer to the Notes to Financial Statements.

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of financial instruments. For a description of the input levels and information about the Fund’s policy regarding valuation of financial instruments, refer to the Notes to Financial Statements.

The following table summarizes the Fund’s financial instruments categorized in the fair value hierarchy. The breakdown of the Fund’s financial instruments into major categories is disclosed in the Schedule of Investments above.

Fair Value Hierarchy as of Period End  (continued)

The Fund may hold assets and/or liabilities in which the fair value approximates the carrying amount for financial statement purposes. As of period end, such assets and/or liabilities are categorized within the fair value hierarchy as follows:

See notes to financial statements.