"Income from bonds issued by state, city, and local governments (municipal bonds, or munis) is generally free from federal taxes. * You will, however, have to report this income when filing your taxes. Municipal bond income is also usually free from state tax in the state where the bond was issued."
- Vanguard
"Interest payments from corporate bond ETFs are taxed as ordinary income. Most muni bonds are free from federal income tax; they're often also tax-free to residents of the issuing state and/or city. So interest payments from a muni bond ETF are exempt at the federal level."
- ETF.com