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Tax
Capital Gains Tax Estimator
Project tax liability on realized profits from stock market, cryptocurrency, or property sales.
Inputs
Initial asset buy cost
Total sell proceeds
Applicable tax rate
1+ Year = Long-term
Results
Estimated capital gains tax
—
Gross capital gain / loss—
Net profit after tax—
Holding category—
Tax rate applied—
Capital Gains Tax = Realized Profit × Applicable Tax Rate. Losses offset taxable gains.
How this calculator works
Calculates taxable net gain from asset sales and computes estimated capital gains tax based on holding period (short-term vs. long-term).
Formula
Capital Gain = Sale Price - Cost Basis - Selling Costs; Tax = Net Gain × Tax Rate %
Worked Example
Purchased stock for $20,000, sold for $35,000 after 2 years with $1,000 transaction costs. Net Capital Gain = $14,000. At 15% long-term tax rate, estimated tax = $2,100.
Assumptions
- Assets held over 1 year qualify for long-term tax rates.
- Purchase basis includes initial price plus eligible improvements/fees.
Limitations
- Does not calculate Net Investment Income Tax (NIIT) surcharges, state capital gains taxes, or tax-loss harvesting offsets.
Disclaimer: Educational estimate only. Consult a Certified Public Accountant (CPA) for tax filing. See our Disclaimer.