Post-Tax Return Calculator

A 10% return is not 10% after taxes. See your true, tax-adjusted return on any investment.

No login Educational estimate Shareable URL

Tax-adjusted math

Reduces returns by your effective tax rate on gains.

Inflation-adjusted

Shows the real purchasing-power return.

Simple and clear

Three numbers: pre-tax, post-tax, and real return.

Example Calculation

Run through a typical scenario with the sample values below โ€” hit See an example to load them instantly.

InputSample value
Pre-Tax Return (%)10
Tax Rate on Gains (%)20
Investment Amount ($)10000
Years5
Inflation (%)3
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How to Use This Tool

Follow the steps below to get accurate results.

  1. Enter your return The pre-tax return (in %) and the tax rate on your gains.
  2. Add investment details Investment amount, number of years and expected inflation.
  3. See the real return Post-tax return and the inflation-adjusted real return.

Input Fields

  • Pre-Tax Return (%)  ยท  e.g. 10
  • Tax Rate on Gains (%)  ยท  e.g. 20
  • Investment Amount ($)  ยท  e.g. 10000
  • Years  ยท  e.g. 5
  • Inflation (%)  ยท  e.g. 3

Outputs You Will Get

  • Pre-Tax Return
  • Post-Tax Return
  • Post-Tax Rate
  • Real Return (after inflation)
What matters is your after-tax, after-inflation real return โ€” that is what grows purchasing power.
๐Ÿง 

How This Calculator Works

A 10% return is not 10% after taxes. See your true, tax-adjusted return on any investment.

What you will get

Good to know

Post Tax Return Calculator is an interactive estimate built for quick planning. Always double-check the numbers that matter before acting on them, and reach out to a professional for personalized advice.

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Frequently Asked Questions

How does the Post Tax Return Calculator work?

Simply fill in the fields and press Calculate. A 10% return is not 10% after taxes. See your true, tax-adjusted return on any investment.

What information do I need to provide?

Just the basics โ€” Pre-Tax Return (%) and Tax Rate on Gains (%) and Investment Amount ($), plus a few simple inputs. No account or signup is required; everything runs in your browser.

Is Post Tax Return Calculator really free to use?

Yes โ€” completely free, with no login, no watermarks and no limits. Bookmark it and share the URL with anyone who needs it.

How accurate is the estimate?

The calculator uses current, standard formulas to produce an educational estimate. Real-world figures can vary based on your specific situation, so treat it as a planning aid rather than a final answer.

Can I use it on my phone?

Absolutely. The tool is fully responsive and works smoothly on mobile, tablet and desktop browsers.

What should I keep in mind?

The result is an estimate for educational purposes only and is not financial, legal or tax advice. Consult a qualified professional before making important decisions.

Disclaimer: The Post Tax Return Calculator is provided for educational and informational purposes only and does not constitute financial, investment, legal or tax advice. Results are estimates and may not reflect your complete financial situation. Always consult a qualified professional before making financial decisions.