Stock Capital Gains Tax Calculator

Calculate capital gains tax on overseas stock sales. Includes Korea's 22% tax rate, 2.5M KRW deduction, and gain/loss netting.

Stock NamePurchase PriceSale PriceQuantityProfit / Loss
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📖How to Calculate Stock Capital Gains Tax

1Enter Your Trades

Add both profitable and loss-making trades. Loss trades reduce your total taxable gain through gain-loss netting.

2Gain-Loss Netting

Gains and losses from the same tax year are netted together. Example: +$5,000 gain and -$2,000 loss = $3,000 net gain.

3Apply Deduction and Rate

Subtract the 2.5M KRW annual deduction from the net gain. The remaining amount is taxed at 22%. Tax is due the following May.

💡Use Cases

Year-end tax estimation for overseas stock portfolio
Tax-loss harvesting strategy planning
Multi-trade gain/loss aggregation

❓Frequently Asked Questions

Are domestic Korean stocks taxed?

General listed shares held by minority shareholders are exempt. This calculator is designed for overseas (foreign) stock taxation.

Which exchange rate should I use?

Use the official exchange rate on the date of each sale transaction. Consult the National Tax Service (NTS) guidelines for exact rates.

Stock Capital Gains Tax Calculator