Tax Equivalent Yield Calculator
Compare taxable vs tax-free yield.
What taxable bond yield matches a muni.
How the Math Works
The Tax Equivalent Yield Calculator uses the formula: Tax Equivalent Yield = Tax-Free Yield / (1 - Tax Rate). This mathematical relationship adjusts a tax-free investment's yield to reflect what a taxable investment would need to offer to provide the same after-tax return. The calculation accounts for your marginal tax bracket, effectively 'converting' a tax-free yield into its taxable equivalent so you can compare investments on a like-for-like basis. For example, a 4% tax-free municipal bond yield with a 24% tax rate equals a 5.33% taxable yield (4% / (1 - 0.24)).
Practical Applications
To use this calculation practically, first determine your marginal tax rate, then divide any tax-free investment's yield by (1 minus that tax rate). If you're comparing a taxable stock fund yielding 6% against a tax-free bond fund at 4%, calculate the tax-equivalent yield of the bond fund by dividing 4% by your tax rate's complement. For a 32% tax bracket, the municipal bond's tax-equivalent yield becomes 5.88% (4% / 0.68), allowing you to make informed comparisons between taxable and tax-exempt investments.
Day-to-Day Use
This calculation empowers everyday investors to make smarter financial decisions by revealing the true cost and benefit of tax-advantaged investments. Whether you're choosing between a high-yield savings account and municipal bonds, evaluating retirement account contributions, or deciding if tax-loss harvesting makes sense, understanding tax-equivalent yields helps you optimize your portfolio. It's particularly valuable during tax season when comparing investment performance and when rebalancing your portfolio to ensure you're getting the best after-tax returns on your money.
FAQ
Muni bonds?
Often tax-exempt — use this to compare.