Money Tools

Taxable Equivalent Yield Calculator

Estimate the taxable equivalent yield that matches a tax-free yield at a given marginal tax rate.

Updated April 11, 2026
Free online tool
Planning and research use

Why this page exists

Tax-free yields are hard to compare with taxable yields until both are translated into the same frame of reference. This calculator helps visitors estimate the taxable equivalent yield for a tax-free return using one simple marginal-tax-rate assumption.

Interactive tool

Run the estimate

Enter your numbers and read the result first, then use the sections below to understand what affects the outcome.

Calculator

Taxable equivalent yield calculator

Estimate the taxable equivalent yield that matches a tax-free yield at a given marginal tax rate.

Result

5.00%

Estimated taxable equivalent yield based on the tax-free yield and marginal tax rate entered.

Taxable equivalent yield5.00%

Tax-free yield3.80%

Marginal tax rate24.00%

Comparison basisTax-free vs taxable yield

3.80% tax-free yield at a 24.00% marginal tax rate is roughly equivalent to a taxable yield of 5.00%.
This calculation helps compare a tax-free yield with the taxable yield that would leave a similar after-tax result under one simplified tax assumption.
Personal tax situations vary, so this is best used as a quick planning comparison rather than a final investment or tax decision.

This is a planning estimate, not tax advice. Real federal, state, and local tax treatment can vary by investor and security.

Planning note

Last updated April 11, 2026. Use this tool to compare scenarios and plan ahead, then confirm important details with the lender, employer, insurer, contractor, or other qualified provider involved in the final decision.

How it works

What the calculator is doing

Enter the tax-free yield and the marginal tax rate you want to test.

The calculator converts the tax-free yield into a taxable equivalent yield using standard comparison math.

It shows the taxable equivalent yield alongside the original tax-free yield for a cleaner apples-to-apples estimate.

Understanding your result

The taxable equivalent yield is most useful when you want a quick comparison point between a tax-free investment and a taxable alternative. It is still only a simplified estimate, because actual tax treatment can vary from person to person.

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Examples

Ways people use this tool

Example scenarios help turn a quick estimate into a more useful comparison or planning step.

Compare a tax-free yield with a taxable account option

This can help show what taxable yield would need to be available before the after-tax result feels similar.

Test two different marginal tax rates

Changing the tax rate makes it easier to see how sensitive the comparison is to tax assumptions.

Translate a quoted tax-free yield into a more familiar benchmark

A taxable-equivalent figure can make tax-free yields easier to compare with more familiar savings or investment yields.

FAQ

Common questions

What formula does this calculator use?

It divides the tax-free yield by 1 minus the marginal tax rate to estimate the taxable equivalent yield.

Why is marginal tax rate used?

Because the comparison is trying to estimate what taxable yield would be needed before taxes to match the tax-free yield after taxes.

Is this tax advice?

No. It is only a simplified comparison estimate, and real tax treatment may vary by investor, state, and security type.

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Keep comparing

Use these related tools to compare nearby scenarios, check a second estimate, or keep narrowing down the right decision.

Money ToolsUpdated April 11, 2026