Cities and states are quietly borrowing money at the highest yields in over a decade, and a slice of that interest can land in ordinary brokerage accounts.
The catch is that muni bonds are not a savings account, and the tax math that makes them attractive can also make them confusing.
When a local government needs cash for roads, schools, or a water plant, it sells bonds and pays interest to whoever buys them.
Because that interest is usually exempt from federal income tax, and often from state tax too, the advertised yield is not directly comparable to a bank CD or a Treasury note.
A 4% muni yield can beat a 5% taxable yield for someone in a high bracket, once you run the numbers.
For a household in a lower bracket, the advantage shrinks fast, and sometimes disappears entirely.
Yields have climbed because the Federal Reserve held rates high to fight inflation, and that pressure worked its way through everything, from credit card APRs to mortgage rates to what cities pay to borrow.
Municipal issuance has also been choppy, which can push prices around in the short term.
Investors with a long horizon and a high tax bill may find munis worth a look.
Everyone else should compare against plain Treasuries, which are also state-tax exempt and far easier to buy and sell.
Individual munis trade in a thin market, so spreads can be wide and selling before maturity can mean taking a haircut.
Credit quality varies wildly between a AAA water district and a city with a shrinking tax base and a pension problem.
A muni bond fund or ETF spreads the risk across hundreds of issuers and lets you sell any day the market is open.
You give up the ability to pick exactly which bonds you own, and the fund's yield drifts as its holdings roll over.
Some muni funds hold bonds subject to the alternative minimum tax, and some hold Puerto Rico or other territories with their own rules.
A few advertise high yields that come from longer maturities, which means more price swings if rates move.
A muni ladder held to maturity can turn a taxable brokerage balance into a stream of tax-free income that arrives on schedule.
That is not exciting, and it is not a guarantee of anything, but for some households it beats watching a savings account pay less than inflation.
One more thing worth checking: your state's rules.
Many states exempt interest on their own bonds but tax you on bonds from elsewhere.
Buying a national muni fund can quietly create a state tax bill you did not plan for.
If you are in a high tax bracket and can hold to maturity or accept fund volatility, the yields on offer are genuinely better than they have been in years.
Final Thoughts
If you are not, a boring Treasury or high-yield savings account will probably serve you better, with far less homework.