Share Trading Gain and Tax Calculator
Calculate your share trading gain after commissions, any withholding tax, net profit and return.
Things to keep in mind
- Rates depend on the share type, investor status and acquisition date. Foreign-listed shares may require an annual return; currency gains and indexation are not included.
Calculator
Result
Enter the values and press Calculate to see the result here.
About this tool
The trading gain is the sale amount after commission minus the purchase cost including commission. For resident individuals trading Borsa Istanbul shares the withholding rate is generally 0%, but it can differ for other cases, so you enter the rate.
How to use
- Enter the quantity and unit purchase and sale prices.
- Enter your broker's buy and sell commission rates.
- Enter the withholding rate (usually 0 for BIST shares) and press Calculate.
Notes
Amounts and commissions are rounded to cents. Withholding is calculated on the gain after commissions; none on a loss.
Frequently asked questions
Gain = (quantity × sale price − sale commission) − (quantity × purchase price + purchase commission).
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Last updated: September 30, 2026