Finance calculator
Capital Gains Tax Calculator
Estimate capital gain, tax due, and after-tax proceeds from a sale.
Formula
Capital gains estimate
Tax rules vary by country, holding period, deductions, exemptions, and filing status. Use this only as a planning estimate.
Tax due = max(sale proceeds - cost basis, 0) x tax rate
A 2,000 gain at 15% tax owes about 300 before local rules.
Sources and assumptions
Capital gains source notes
This profile covers a generic capital-gain estimate. The calculator computes gain and tax from the rate entered by the user; it does not choose the rate or determine special treatment.
- Effective year
- 2026
- Last verified
- 2026-05-27
Tax rules vary by country, holding period, deductions, exemptions, and filing status. Use this only as a planning estimate.
Official and reference sources
Assumptions
- Sale proceeds and cost basis are entered before tax.
- The user enters the tax rate that applies to the scenario.
- Negative gains are treated as no taxable gain in the simple result.
Not included
- Short-term versus long-term treatment, indexation, exemptions, losses, carry-forward rules, and surcharges.
- Asset-specific rules for property, equity, crypto, collectibles, inherited assets, or business assets.
- Filing status, income bands, deductions, treaty rules, and local taxes.
FAQs
Does this handle short-term and long-term tax rules?+
No. Enter the tax rate that applies to your situation.
How does the Capital Gains Tax Calculator calculate the result?+
It uses the Capital gains estimate: Tax due = max(sale proceeds - cost basis, 0) x tax rate. A 2,000 gain at 15% tax owes about 300 before local rules.
What information do I need to use the Capital Gains Tax Calculator?+
Estimate capital gain, tax due, and after-tax proceeds from a sale.
How accurate is the Capital Gains Tax Calculator?+
Capital Gains Tax Calculator applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the Capital Gains Tax Calculator result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
Finance guide
How to use the Capital Gains Tax Calculator
Estimate capital gain, tax due, and after-tax proceeds from a sale. The page also explains the capital gains estimate and shows a practical example: A 2,000 gain at 15% tax owes about 300 before local rules.
- 1
Enter your details
Enter a sale, then complete any other fields shown in the calculator.
- 2
Check the calculation
Review the result alongside the capital gains estimate: Tax due = max(sale proceeds - cost basis, 0) x tax rate.
- 3
Compare scenarios
Change one or more inputs to see how they affect the capital Gains Tax Calculator result before you use the estimate.
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