Question 1

What is tax-equivalent yield for municipal bonds?

Accepted Answer

Tax-equivalent yield (TEY) is the pre-tax yield a taxable bond must offer to equal the after-tax yield of a tax-exempt municipal bond. Formula: TEY = Muni Yield ÷ (1 - Marginal Tax Rate). A 3.5% muni bond is equivalent to a 5.38% taxable bond for an investor in the 35% federal tax bracket. For investors in higher brackets (37% federal + state taxes), the advantage is even more pronounced. TEY analysis is essential for high-income investors deciding between munis and taxable bonds.

Question 2

Who benefits most from municipal bonds?

Accepted Answer

Municipal bonds provide the greatest benefit to investors in higher tax brackets. At the 10–12% federal bracket, munis rarely offer better after-tax yields than comparable taxable bonds. At the 22–24% bracket, munis become competitive. At 32–37% federal brackets, adding state income taxes, the highest earners (especially those in high-tax states like California, New York, New Jersey, and Illinois) can see tax-equivalent yields of 6–8% from high-grade muni bonds yielding just 3.5–4.5%. High-net-worth retirees in top brackets gain the most.

Question 3

What types of municipal bonds are available?

Accepted Answer

Municipal bonds include: (1) General Obligation (GO) bonds — backed by full taxing power of the issuer, highest safety; (2) Revenue bonds — backed by specific project revenues (toll roads, hospitals, water utilities), higher yield, higher risk; (3) AMT bonds — subject to Alternative Minimum Tax, avoid if you pay AMT; (4) Build America Bonds (BABs) — taxable munis with federal subsidy; (5) Pre-refunded/escrowed bonds — essentially backed by U.S. Treasuries, maximum safety; (6) Insured bonds — credit enhancement from bond insurers (declining sector post-2008). Individual investors typically access munis through ETFs (MUB, VTEB) or separately managed accounts (SMAs) for $250k+.

Question 4

What are the risks of municipal bonds?

Accepted Answer

Despite their reputation for safety, munis carry real risks: Credit risk — cities and states can default (Detroit 2013, Puerto Rico 2017 restructuring); interest rate risk — duration sensitivity similar to comparable corporate bonds; AMT risk — some muni interest is subject to Alternative Minimum Tax; liquidity risk — individual muni bonds often have wide bid-ask spreads; call risk — issuers frequently call bonds early when rates fall; and concentration risk — some muni funds are heavily concentrated in California or New York. The default rate for investment-grade munis is historically very low (~0.1% over 10 years) but not zero.

Question 5

What muni bond yields are available in 2024-2025?

Accepted Answer

As of early 2025, investment-grade municipal bond yields range from approximately 2.5–3.5% for AAA-rated 5-year bonds, 3.0–4.0% for 10-year bonds, and 3.5–4.5% for 20–30-year bonds. High-yield muni bonds (BBB to non-rated) yield 4.5–6%+. The Bloomberg Municipal Bond Index yielded approximately 3.3% on average in early 2025. On a tax-equivalent basis, a 37% bracket investor sees these as 5.2–7.1% equivalent taxable yields — competitive with many investment-grade corporate bonds.

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