I have been troubled a bit about how poorly bonds in the tax-free universe have performed this year. Tax-free municipal bonds usually make economic sense for investors with very high taxable net income, but this year “not so much”!
The math to understand the economic benefit of tax-free bonds compared to taxable bonds is straight forward. If a tax-free bond pays tax-free income of 3%, then the pre-tax equivalent return for an investor in the highest Federal (37%) and State (VT, 8.5%) tax brackets is 5.5% (3% / (1-0.455) = 5.5%). In other words, an investor in the highest tax brackets would need to earn more than 5.5% income yield on a taxable bond to prefer that bond EVERYTHING ELSE BEING EQUAL.
Unfortunately, everything else has not been equal this year! As seen from the table below, Taxable bonds like core bonds, investment grade corporates and others have all outperformed comparable tax-free bonds this year with higher total returns. Most of the difference in performance is from the Price Return component since the Income Return aspect on an AFTER-TAX basis is mostly equivalent at around 2%. Tax-free bonds have generated almost no Price appreciation on a year-to-date basis while other taxable bonds have moved up between 2-4%.
What has caused this disconnect in price appreciation for tax-free bonds compared to taxable bonds this year? And where do we go from here?
Some market commentators have posited that increased issuance of tax-free municipal debt this year has glutted the market putting upward pressure on rates (and downward pressure on price). Others have commented that the political environment has caused uncertainty with some municipal tax-free issuers causing some weakness. Interestingly, most of the largest issuers of tax-free bonds have maintained their high credit quality ratings so the decline in price appears to be mostly “technical” and less about weakening credit strength.
This has been one of those rare years when the usual math clearly favored tax-free income… and yet the market responded, “not so much.” But the disconnect looks more temporary than structural. Municipal credit strength remains intact, tax-equivalent yields are compelling for top-bracket investors, and recent price weakness may actually set the stage for better long-term value. When the technical headwinds ease, we expect munis to remind investors why they’re a core holding for the highest-taxed households.
