The Appeal of South Carolina Municipal Bonds in Today’s Market The Appeal of South Carolina Municipal Bonds in Today’s Market

For South Carolina investors seeking income, municipal bonds issued within the state can be particularly attractive in today’s higher interest-rate environment. Interest from qualifying municipal bonds is generally exempt from federal income tax, and South Carolina residents can also generally exclude interest from qualifying bonds issued by the State of South Carolina and its political subdivisions from South Carolina income tax. This double tax-exempt treatment can make South Carolina municipal bonds especially valuable for investors in higher marginal tax brackets. With municipal yields still elevated compared with much of the past decade, investors may have an opportunity to earn attractive income while keeping more of that income after taxes.

One useful way to compare a tax-exempt municipal bond with a taxable investment is through its taxable-equivalent yield. Consider a high-income South Carolina resident in the 37% federal marginal income tax bracket, the 5.21% South Carolina marginal bracket, and subject to the 3.8% Net Investment Income Tax (NIIT). The NIIT generally applies to taxable investment income for taxpayers above the applicable income thresholds, while tax-exempt municipal bond interest is generally excluded from net investment income. Taking these taxes into consideration, the investor’s combined marginal tax rate on taxable investment income is approximately 46%. A South Carolina municipal bond yielding 4.00%, for example, would therefore have a taxable-equivalent yield of approximately 7.41%. Put another way, a taxable bond would need to yield roughly 7.41% before taxes to provide approximately the same after-tax income as a qualifying South Carolina municipal bond yielding 4.00%. The exact calculation depends on an investor’s individual tax circumstances, but the example illustrates an important point: the investment with the highest stated yield is not necessarily the investment that produces the highest after-tax income.

Current market conditions make that comparison particularly relevant. Tax-exempt municipal yields remain attractive relative to their historical levels, creating opportunities for investors willing to look beyond headline yields and evaluate what they actually keep after taxes. This can be especially important for South Carolina residents because qualifying in-state municipal bonds may receive favorable treatment at both the federal and state levels, while interest from bonds issued by other states is generally subject to South Carolina income tax. For investors in higher tax brackets, the combination of today’s yields and the potential for double tax-exempt income can allow carefully selected South Carolina municipal bonds to compare favorably with taxable corporate bonds on an after-tax basis.

However, building a municipal bond portfolio involves considerably more than simply finding bonds labeled “tax exempt” with attractive yields. Each bond should be evaluated based on the financial strength of the issuer, source of repayment, maturity, call provisions, liquidity, credit quality, and price relative to comparable securities. The tax analysis can also become more complicated when bonds are purchased at an original issue discount, market discount, or premium, because the purchase price and subsequent accretion or amortization can affect the bond’s tax treatment and true after-tax return. Certain municipal bonds may also be subject to the Alternative Minimum Tax or have other tax considerations that are not apparent from the stated coupon or yield. These nuances are why we believe municipal portfolios should be professionally constructed and actively evaluated bond by bond, rather than assembled by simply purchasing securities with the highest available tax-exempt yields. For South Carolina investors who can benefit from double tax-exempt income, today’s municipal market may offer compelling opportunities—but realizing those benefits requires thoughtful security selection, tax awareness, diversification, and an understanding of how each bond fits within the investor’s broader financial plan.

Disclosure: The information provided in this blog post is for educational and informational purposes only and should not be construed as financial advice. While we strive to present accurate and up-to-date information, the financial, tax, and legal landscape is subject to change, and individual circumstances vary. Readers are encouraged to consult with a qualified financial advisor or professional before making any financial decisions or implementing strategies discussed in this post. Our firm does not guarantee the accuracy, completeness, or suitability of the information provided, and we disclaim any liability for any direct or indirect damages arising from the use of this information. Artificial Intelligence was used to assist in the writing of this article. Past performance is not indicative of future results. Any investment involves risk, and individuals should carefully consider their financial situation and risk tolerance before making any investment decisions.