However, for that additional benefit, the funds typically generate lower yields, says Morningstar analyst Ken Oshodi. AMT-free funds underperformed the larger muni category over the past year, Oshodi notes, although they slightly outperformed over the longer-term, especially 10 years.
Scroll through to see the 20 best performing AMT-free touted funds over the past five years. All data from Morningstar.
20. BMO Intermediate Tax-Free Y (MITFX)
5-Yr. Return: 2.72%
Expense Ratio: 0.55%
Ttal Assets (millions): $1,588
19. JHancock Tax-Free Bond A (TAMBX)
5-Yr. Return: 2.79%
Expense Ratio: 0.81%
Total Assets (millions): $566
18. Elfun Tax-Exempt Income (ELFTX)
5-Yr. Return: 2.93%
Expense Ratio: 0.20%
Total Assets (millions): $1,486
17. JPMorgan Tax Free Bond A (PMBAX)
5-Yr. Return: 2.99%
Expense Ratio: 0.67%
Total Assets (millions): $325
16. First Investors Tax Exempt Opps A (EIITX)
5-Yr. Return: 3%
Expense Ratio: 1%
Total Assets (millions): $280
15. Franklin Federal Tax-Free Income A (FKTIX)
5-Yr. Return: 3.21%
Expense Ratio: 0.61%
Total Assets (millions): $12,479
14. Northern Tax-Exempt (NOTEX)
5-Yr. Return: 3.25%
Expense Ratio: 0.45%
Total Assets (millions): $1,081
13. Dreyfus AMT-Free Municipal Bond Z (DRMBX)
5-Yr. Return: 3.26%
Expense Ratio: 0.49%
Total Assets (millions): $984
12. American Funds Tax-Exempt Bond A (AFTEX)
5-Yr. Return: 3.32%
Expense Ratio: 0.54%
Total Assets (millions): $13,408
11. Columbia Tax-Exempt A (COLTX)
5-Yr. Return: 3.38%
Expense Ratio: 0.76%
Total Assets (millions): $3,832
10. Delaware Tax-Free USA A (DMTFX)
5-Yr. Return: 3.42%
Expense Ratio: 0.81%
Total Assets (millions): $501
9. Fidelity Tax-Free Bond (FTABX)
5-Yr. Return: 3.51%
Expense Ratio: 0.25%
Total Assets (millions): $3,153
8. MainStay Tax-Free Bond B (MKTBX)
5-Yr. Return: 3.56%
Expense Ratio: 1.04%
Total Assets (millions): $2,452
7. Lord Abbett AMT Free Municipal Bond I (LMCIX)
5-Yr. Return: 3.58%
Expense Ratio: 0.40%
Total Assets (millions): $203
6. USAA Tax Exempt Long-Term (USTEX)
5-Yr. Return: 3.64%
Expense Ratio: 0.51%
Total Assets (millions): $2,352
5. Vanguard Long-Term Tax-Exempt (VWLTX)
5-Yr. Return: 3.66%
Expense Ratio: 0.19%
Total Assets (millions): $9,959
4. Lord Abbett Natl Tax-Free Income A (LANSX)
5-Yr. Return: 3.85%
Expense Ratio: 0.74%
Total Assets (millions): $1,958
3. Eaton Vance AMT-Free Municipal Income I (EVMBX)
5-Yr. Return: 3.89%
Expense Ratio: 0.56%
Total Assets (millions): $346
2. Vanguard High-Yield Tax-Exempt (VWAHX)
5-Yr. Return: 4.01%
Expense Ratio: 0.19%
Total Assets (millions): $10,686
1. Pioneer AMT-Free Municipal A (PBMFX)
5-Yr. Return: 4.26%
Expense Ratio: 0.81%
Total Assets (millions): $1,237