abrdn National Municipal Income Fund (VFL)
abrdn National Municipal Income Fund is a closed-end fund that invests in municipal bonds issued by state and local governments across the United States. The fund collects the tax-exempt interest that muni bonds pay and distributes it to shareholders, making it a vehicle for higher-bracket earners to capture the benefit of tax-free income without assembling their own muni portfolio.
What makes municipal bonds tax-exempt?
When a state, city, or other local government borrows money to pay for schools, highways, water treatment, or courthouses, it issues bonds. The interest on those bonds is typically exempt from U.S. federal income tax—a subsidy that Congress allows to make it cheaper for localities to borrow. For an investor in the highest federal income-tax bracket (now 37 percent), a municipal bond yielding 4 percent is worth as much after taxes as a taxable bond yielding roughly 6.3 percent. That tax advantage is the entire reason municipal bonds exist as an asset class; without it, they would offer worse yields and compete poorly against Treasuries and corporate bonds.
abrdn National Municipal Income Fund holds a mix of these bonds, drawing from issuers in many different states. The diversification across states and issuers insulates the fund from credit problems in any one locality or state. If one school district faces budget stress, it is a small dent in a large portfolio. The fund’s holdings typically span all ratings, from very safe general-obligation bonds backed by state taxing power to riskier revenue bonds that depend on a single facility’s cash flow—such as a hospital or toll road.
Who benefits and who doesn’t
The tax advantage of muni bonds is steep for the highest earners but vanishes entirely for the lowest. A person in the 12 percent federal bracket gains almost nothing from the tax exemption compared to a taxable bond of similar quality. This creates a market segmentation: wealthy individuals and high-bracket taxpayers dominate muni-bond ownership, while average investors are better served holding taxable bonds in tax-advantaged accounts like IRAs. The fund is best suited to investors in the 32 percent bracket or higher and those in high-tax states that layer a state income-tax exemption on top of the federal one.
Interest-rate and credit risk
Like all bonds, munis are sensitive to interest-rate moves. If the Federal Reserve raises rates, the prices of existing muni bonds fall, because new bonds will offer higher yields and existing bonds become less attractive. A shareholder who buys shares of the fund at a premium to net asset value and then sees rates rise may face a double loss: the bonds in the portfolio decline, and the fund’s share price, which drifts around its net asset value, also falls.
Credit risk is the other main worry. A few munis default each year, usually smaller issuers with budget problems. The fund’s large, diversified portfolio means any single default is diluted, but a regional recession or state-level budget crisis can affect many issuers at once. The 2008 financial crisis led to waves of muni-bond downgrades and isolated defaults, and concerns about underfunded public-pension liabilities continue to worry some analysts. The fund’s net asset value reflects the market’s assessment of these risks, and sharp declines in net asset value signal that credit concerns have spiked.
Size and leverage
abrdn National Municipal Income Fund is a long-standing, established fund with meaningful assets, which helps it maintain tight trading spreads on the exchange and gives it the heft to negotiate good purchase prices on large block trades of bonds. The fund may use leverage—borrowing to buy more bonds than shareholder capital alone would permit—to amplify the income stream, a practice common among closed-end muni funds. Leverage increases monthly distributions in calm times but amplifies losses when credit spreads widen or rates spike, so it is a double-edged tool.
How to evaluate the fund
Tracking the fund’s net asset value relative to its market price is essential. A fund trading at a 5 percent discount to net asset value offers better value for a new buyer than one trading at a 5 percent premium. The distribution yield—the monthly dividend relative to the share price—is advertised prominently but can be misleading; a 7 percent yield on a fund with a stable net asset value is attractive, while a 7 percent yield accompanied by a collapsing net asset value signals the fund may be distributing capital as income, an unsustainable practice.
Reviewing the fund’s portfolio composition—what states and issuers it holds, whether it has any holdings in default, what credit ratings dominate—helps assess the risk being taken. The average maturity of the bonds matters too: a longer-duration portfolio is more sensitive to interest-rate changes. The fund’s annual report (SEC CIK 0000895574) and monthly factsheets provide this detail. Finally, because the entire appeal of the fund is tax-exemption, it makes sense only for investors who actually benefit from the tax advantage—those in higher federal brackets or those in high-tax states. Others are better served buying taxable bonds or broad U.S. bond funds.