Compelling AMT Muni Bond Yields: Hiding in Plain Sight?

For years, investors seeking tax-efficient income grappled with a key question: Are municipal bonds that are subject to the alternative minimum tax (AMT) worth their higher yields? After all, an attractive bond yield didn’t hold as much luster once the AMT shaved off up to 28%.

The Tax Cuts and Jobs Act of 2017 (TCJA), with its far-reaching changes to AMT guidelines, altered the tax landscape dramatically—the number of taxpayers subject to AMT has plummeted from 5.2 million to only some 200,000 today. And with spreads to non-AMT bonds historically wide today, that’s great news all around—especially for investors no longer subject to the AMT.

AMT muni bonds fund unique capital projects, such as airport improvements, hospital expansions, and student-loan and affordable-housing programs. Usually, they don’t fit squarely into a government “public purpose” box like traditional tax-exempt munis do. Their income became subject to the AMT back in 1986, and their yields have historically run much higher than non-AMT munis.