Any investment that purports to offer relative safety and avoid tax liability naturally strikes a chord. Where can I sign up? Municipal bonds and bond funds often show up in investors’ portfolios for those very reasons, since we all hate paying taxes. However, a careful assessment of the appropriateness and quality of these bonds is essential, perhaps more so today than at any time in recent memory. For most investors who are not in the highest tax bracket, muni bonds are not the best choice and may actually add unnecessary risk.
Christopher HopkinsMunicipal bonds trace their origin to Italy during Renaissance, with city-states selling notes to investors to raise revenue as early as the 14th century. In the U.S., state and local governments first issued bonds in 1812 to pay for roads, sewers, hospitals, schools and virtually every other infrastructure or social service endeavor. In order to encourage investors to purchase these bonds, the U.S. tax code generally exempts the interest income from federal taxation (with some exceptions). Since the income is tax-free, issuers can sell the bonds at lower interest rates, resulting in reduced borrowing costs. For investors living within the jurisdiction of the issuer, income is also typically exempt from state and local taxation as well. Sounds great if you loathe paying taxes.
However, for most individuals, the impact of tax avoidance is insufficient to justify the lower return. Take for example a couple whose marginal tax bracket is 25 percent (adjusted gross income less than $139,350). A typical 10-year AA-rated muni bond yields an average 2.35 percent. After adjusting for federal taxes, the same investor would need to get 3.13 percent from a taxable bond to enjoy the same after-tax return. The differential would be somewhat higher considering state income taxes where applicable, but still relatively small.
Investors considering munis should compare this effective after-tax equivalent yield to the available returns on bonds of comparable risk like high-quality corporates or intermediate-maturity treasury bonds. The tradeoff only becomes favorable if you reside in the higher tax brackets.
But that is not the only reason to think twice about municipals. One should be highly reticent to extend maturities out to 10 years given the historically low level of rates today. This is especially true for investors that hold bond mutual funds or ETFs; the risk of capital loss over the next few years is likely to outweigh the after-tax income yield as interest rates begin to climb.