Long-Term Capital Gains Tax Calculator

Hold an asset for more than one year and you pay 0%, 15% or 20% โ€” far less than ordinary income rates. Estimate your tax in seconds.

No login Educational estimate Shareable URL
BracketGain TaxedTax

0% / 15% / 20% rates

Current long-term capital gains brackets for single and joint filers.

NIIT included

Automatically adds the 3.8% Net Investment Income Tax when income crosses the threshold.

Instant recalc

Results update live as you change any input.

Example Calculation

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

InputSample value
Cost Basis ($)10000
Sale Price ($)15000
Purchase Date2024-06-01
Sale Date2026-08-15
Filing StatusMarried filing jointly
Taxable Income ($/year)80000
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How to Use This Tool

Follow the steps below to get accurate results.

  1. Enter your buy and sell prices Cost Basis = what you paid; Sale Price = what you received.
  2. Set your income details Choose Filing Status and enter your annual Taxable Income to find your long-term rate.
  3. Review your tax bill See the long-term gain, favorable federal rate, tax owed and after-tax profit.

Input Fields

  • Cost Basis ($)  ยท  e.g. 10000
  • Sale Price ($)  ยท  e.g. 15000
  • Filing Status
  • Taxable Income ($/year)  ยท  e.g. 80000

Outputs You Will Get

  • Long-Term Gain
  • Federal Rate
  • Federal Tax
  • NIIT (if any)
  • After-Tax Profit
Holding an asset for more than one year qualifies for the lower long-term capital gains rates (0%, 15% or 20%).
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How This Calculator Works

Hold an asset for more than one year and you pay 0%, 15% or 20% โ€” far less than ordinary income rates. Estimate your tax in seconds.

What you will get

Good to know

Long-Term Capital Gains Tax 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 Long-Term Capital Gains Tax Calculator work?

Simply fill in the fields and press Calculate. Hold an asset for more than one year and you pay 0%, 15% or 20% โ€” far less than ordinary income rates. Estimate your tax in seconds.

What information do I need to provide?

Just the basics โ€” Cost Basis ($) and Sale Price ($) and Filing Status, plus a few simple inputs. No account or signup is required; everything runs in your browser.

Is Long-Term Capital Gains Tax 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 Long-Term Capital Gains Tax 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.