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Capital Gains Tax Calculator (US)

LTCG: 0%/15%/20%. ST gain taxed as ordinary income.

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⚠ Tax year 2024 figures. Estimates only — consult a tax professional.

How to use Capital Gains Tax Calculator (US)

  1. Enter your gain amount, holding period, and taxable income/filing status.
  2. The calculator determines whether the gain is short-term (taxed as ordinary income) or long-term (0%/15%/20% rate based on income).
  3. See your estimated capital gains tax.

Limitations

  • The 0%/15%/20% long-term rates depend on total taxable income thresholds that change with filing status and are updated annually — this reflects current published thresholds, not a locked-in number regardless of tax year.
  • State capital gains tax (where applicable) isn't included.

About this tool

Capital Gains Tax Calculator (US) is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.

Category: Tax & Government — US Federal. Browse more Tax & Government — US Federal tools.