Finance calculator
Capital Gains Tax Calculator
Estimate capital gain, tax due, and after-tax proceeds from a sale.
FormulaTax due = max(sale proceeds - cost basis, 0) x tax rate
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.
SourcesThis 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.
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.
FAQ5 common questions for this calculator.
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?+
For the Capital Gains Tax Calculator, 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?+
For the Capital Gains Tax Calculator, enter a sale. Keep the units consistent with the calculator fields and compare your setup with the worked example on the page.
How accurate is the Capital Gains Tax Calculator?+
Capital Gains Tax Calculator is accurate for the rates, amounts, dates, and rules entered. It uses the Capital gains estimate shown on this page. Real products can differ because of fees, taxes, contract terms, or changing official thresholds.
What should I check before using the Capital Gains Tax Calculator result?+
For the Capital Gains Tax Calculator, check a sale, then compare the Capital gains estimate and worked example with the contract or source you will rely on. Fees, tax year, currency, and payment timing can change the final decision.
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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.