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Tax-Equivalent Yield Calculator

Calculate the taxable yield needed to match a tax-free municipal bond yield. Compare muni bonds to taxable corporate bonds and treasury bonds.

Tax-Equivalent Yield

✓ TAXABLE BOND WINS

4.85%

Tax-equivalent yield of 3.5% muni bond

Muni yield (tax-free)
3.50%
After-tax taxable yield
3.61%
TEY (needed to match muni)
4.85%
Advantage (taxable)
+0.11%/yr

BREAKEVEN ANALYSIS BY BRACKET

22% bracketNeed > 4.49% taxable to beat muni
24% bracketNeed > 4.61% taxable to beat muni
32% bracketNeed > 5.15% taxable to beat muni
35% bracketNeed > 5.38% taxable to beat muni
37% bracketNeed > 5.56% taxable to beat muni

Frequently Asked Questions

What is tax-equivalent yield?

Tax-equivalent yield = Muni yield ÷ (1 - Tax rate). A 4% muni bond for a 32% bracket investor has a TEY of 4% ÷ 0.68 = 5.88%. Any taxable bond paying under 5.88% is worse after tax.

When do muni bonds make sense?

Generally above the 22-24% federal tax bracket — especially in high-tax states. For low-bracket investors (0-12%), taxable bonds usually offer better after-tax returns.

Are all muni bonds tax-free?

Federal tax: yes for most. State tax: only exempt in the issuing state in most cases. AMT: some private-activity muni bonds trigger the Alternative Minimum Tax. Always verify before investing.

For educational purposes only. Not financial advice. Consult a qualified advisor before making investment decisions.