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