Stock Profit Calculator
Real returns including fees & transaction tax
Trade Information
Commission
%
Transaction Tax
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Result
Awaiting InputReturn Rate
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Buy Amount
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Sell Amount
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Commission
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Transaction Tax
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Net P&L
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매수
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매도
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Stock Profit Calculator Guide
How Stock Returns Are Calculated
Understanding Broker Fees and Transaction Tax
Break-Even Price Explained
Tips for Maximizing Net Returns
How to Use This Calculator
FAQ
How is stock return rate calculated?
Return Rate = (Sell Amount - Buy Amount - Fees - Tax) ÷ Buy Amount × 100. This calculator automatically includes securities transaction tax and brokerage commission.
What is the securities transaction tax rate?
As of 2026, KOSPI and KOSDAQ securities transaction tax is 0.20% of the sell amount. No tax is charged on purchases.
How do I set brokerage commission?
Commission rates vary by brokerage. Typically 0.015%–0.5% for online trades, and sometimes free during promotional periods. Check your brokerage's website for the exact rate.
What is the break-even price?
The break-even price is the minimum sell price needed to cover all fees and taxes without any profit or loss. It must be higher than the buy price to account for transaction costs.
Does this work the same way for international stocks?
The basic calculation is the same, but international stocks may be subject to capital gains tax (22% on gains over 2.5M KRW) and exchange rate fluctuations should also be considered.
Are dividends included in the return rate?
This calculator only computes trading gains. For total return including dividends, calculate: (Trading Gain + Dividends) ÷ Investment Amount × 100 separately.
Are ETFs subject to transaction tax?
Domestic Korean ETFs are exempt from securities transaction tax. However, brokerage commission still applies, and foreign ETFs are subject to capital gains tax.