Municipal bonds can make sense for some investors, but not for everyone
Whether a municipal bond is a good investment depends on your tax situation, how much money you have to invest, and what you need the money for. Municipal bonds pay interest that is usually free from federal income tax, and often free from state and local tax too — but only if you hold them until maturity or sell them at a profit. The trade-off is that they typically pay less interest than taxable bonds, and you can lose money if you sell before maturity and interest rates have risen.
They work best for people in higher tax brackets who want steady income and can leave their money untouched for years. If your income is low enough that you pay little or no federal tax, the tax break does not help you, and a taxable bond or other investment might serve you better.
Key Takeaways
- Municipal bond interest is usually not taxed by the federal government, which can make them more valuable than the interest rate alone suggests, especially if you earn a high income.
- The tax benefit only matters if you actually owe federal income tax — it does not help you if your income is too low to pay taxes.
- Municipal bonds pay less interest than similar taxable bonds because of the tax break, so you need to do the math to see if the after-tax return is worth it for your situation.
- If you sell a municipal bond before it matures, you can lose money if interest rates have risen, just like with any bond.
- Municipal bonds are safest when you buy them through a fund or ladder many bonds across different issuers, rather than betting on a single city or county.
How the tax break actually changes what you earn
A municipal bond might pay 3.5 percent interest, while a taxable bond pays 5 percent. If you are in the 24 percent federal tax bracket, that taxable bond really pays you 3.8 percent after taxes — more than the municipal bond. But if you are in the 35 percent bracket, the taxable bond pays you only 3.25 percent after taxes, making the municipal bond the better deal.
To figure out whether a municipal bond makes sense for you, compare its interest rate to a taxable bond's rate, then subtract what you would owe in federal tax on the taxable bond. Your tax bracket determines how much that tax matters. You can find your federal tax bracket on your most recent tax return, or ask a tax preparer. Some online calculators let you plug in both rates and your bracket to see the comparison, though a tax professional can give you a more complete picture if you are considering a large investment.
The tax-free status only applies to federal income tax. Some municipal bonds are also free from state and local tax, but only if you live in the state that issued them. A bond issued by New York City is tax-free in New York but not in California. If you live in a state with no income tax, the state tax break does not matter to you.
The risk that interest rates will move against you
When you buy a municipal bond, you are locked into its interest rate. If you need to sell before the bond matures, and interest rates have risen since you bought it, the bond is worth less. A buyer will only pay you full price if they get the same rate as new bonds offer — and if new bonds pay more, they will pay you less to make up the difference.
This matters most if you think you might need the money in five years but the bond does not mature for ten. If you hold it to maturity, the price drop does not matter — you get your full principal back. But if you have to sell early, you take the loss. This is why municipal bonds work best for money you know you will not need for years.
The longer the bond's maturity, the bigger the price swing when rates move. A 30-year bond will drop in value much more than a 2-year bond if rates rise. If you are worried about needing the money, shorter bonds or bond funds are safer because they are less sensitive to rate changes.
Credit risk: what happens if the issuer cannot pay
Municipal bonds are backed by a city, county, or other local government — not by the federal government. If that government runs out of money or faces a budget crisis, it might not be able to pay you the interest or principal you are owed. This is rare, but it has happened. Detroit's municipal bonds lost significant value during the city's 2013 bankruptcy.
The risk varies widely. A bond issued by a large, wealthy city with stable tax revenue is much safer than one from a small town with declining population and shrinking property tax income. Rating agencies like Moody's and Standard & Poor's publish credit ratings for municipal bonds — AAA is the safest, and ratings go down from there. You can find these ratings free on the agencies' websites or through your broker.
If you are buying individual bonds, research the issuer's finances and recent news. If you are buying through a municipal bond fund, the fund manager does this work for you, though you pay a small fee for that service. Diversification — owning bonds from many different issuers — also reduces the damage if one issuer has trouble.
When municipal bonds make the most sense
Municipal bonds are most useful if you are in a high tax bracket (usually 32 percent federal or higher), have money you will not need for at least five years, and want predictable income. They also work well if you live in a state with high income tax and can buy bonds issued in that state.
They are less useful if your income is low enough that you pay little or no federal tax, because the tax break does not help you. They are also not ideal if you might need the money soon, because selling early can lock in a loss. And they do not make sense as a short-term trading vehicle — they are meant to be held.
Many investors use municipal bonds as part of a larger portfolio, not as the whole thing. A mix of stocks, taxable bonds, and municipal bonds can balance growth, safety, and tax efficiency. A financial advisor can help you figure out what mix makes sense for your goals and situation.
Municipal bond funds versus buying individual bonds
You can buy individual municipal bonds directly from a broker, or you can buy a mutual fund or exchange-traded fund (ETF) that holds many municipal bonds. Each approach has trade-offs.
Individual bonds give you certainty: if you hold to maturity, you know exactly what you will get back. You also avoid paying ongoing fund fees. But you need at least $5,000 to $10,000 to buy even one bond, and buying multiple bonds to diversify costs more. You also have to research each issuer yourself or pay a financial advisor to do it.
Municipal bond funds let you invest smaller amounts, give you when ready diversification across dozens or hundreds of bonds, and handle the research for you. But you pay an annual fee (usually 0.2 to 1 percent of your investment), and the fund's value goes up and down with interest rates — you do not get a may provide payoff at maturity. ETFs tend to have lower fees than mutual funds, and they trade like stocks during market hours.
How to compare a municipal bond to other investments
Before you buy, calculate the taxable equivalent yield — the interest rate a taxable bond would need to pay to match what you actually keep after taxes. Divide the municipal bond's interest rate by (1 minus your tax bracket). For example, if a municipal bond pays 3 percent and you are in the 24 percent bracket, the taxable equivalent is 3 ÷ (1 − 0.24) = 3.95 percent. Now compare that 3.95 percent to what taxable bonds are actually paying. If taxable bonds pay less, the municipal bond is the better deal.
Also compare to other tax-advantaged investments you might use instead. If you have not maxed out your 401(k) or Roth IRA, those often make more sense because they offer tax breaks on growth, not just income. Municipal bonds are usually a piece of the puzzle, not the whole answer. A tax professional can walk you through how municipal bonds fit into your overall financial picture.
Frequently Asked Questions
Can I lose money on a municipal bond if I hold it to maturity?
No, if you hold an individual municipal bond to maturity and the issuer does not default, you get your full principal back plus all the interest owed. You can only lose money if you sell before maturity and interest rates have risen, or if the issuer goes bankrupt and cannot pay.
What is the difference between a general obligation bond and a revenue bond?
A general obligation bond is backed by the issuer's full taxing power — the government can raise taxes to pay you if needed. A revenue bond is backed only by income from a specific project, like a toll road or water system. General obligation bonds are usually safer because the issuer has more ways to raise money to pay you.
Do I have to report municipal bond interest on my tax return?
No, you do not report the interest itself. But if you sold a municipal bond at a profit, you do report the capital gain. Your broker will send you a 1099 form showing any gains or losses. A tax preparer can tell you exactly what to report.
What happens to my municipal bond if interest rates fall?
If you hold to maturity, nothing — you still get your full principal and interest. But if you sell before maturity, the bond is worth more, because new bonds pay less interest. This is the opposite of what happens when rates rise, and it is one reason bond prices and interest rates move in opposite directions.
Are municipal bonds safer than stocks?
Municipal bonds are usually less risky than stocks in the short term because their value does not swing as wildly. But they are not risk-free — interest rates can move against you, and the issuer could default. Stocks have higher long-term returns but more year-to-year ups and downs. The right choice depends on your time horizon and how much risk you can handle.