Stock P&L Calculator

Calculate stock buy and sell fees, stamp duty, transfer fee, net profit or loss and return rate with a clear cost breakdown.

Buy price

Buy quantity

Sell price

Sell quantity

Commission (%)

Stamp duty (%)

Transfer fee (%)

Defaults: stamp duty 0.05% sell-side (halved since 2023-08-28), commission negotiable, transfer fee 0.001%. A-share (mainland China) rules; other markets differ — check latest policy.

Net profit / loss · +1,987.18 (19.87%)

Buy amount10,000.00

Buy fees3.10

Total buy cost10,003.10

Sell amount12,000.00

Sell fees (excl. duty)3.72

Stamp duty6.00

Net proceeds11,990.28

Net profit / loss+1,987.18

Estimates for reference only; not investment advice. Fees are assumptions, actual broker rates apply.

Fee breakdown

What is it

Trading costs decide whether a small gain is a real gain. The buy side has commission and transfer fees, the sell side adds stamp duty. This calculator separates every cost so your true profit — and true return rate — is never hidden.

Notes & fun facts

Stamp duty was halved in August 2023 to 0.05% on sells only — regulators use it as a market signal. Commission is negotiable with your broker and usually a few basis points per side. Small percentages look harmless until they stack up over dozens of trades a year.

Origin & history

Stamp duty on A-share trades has existed since 1990 and has been cut in stages; the 2023-08-28 halving to 0.05% (sell side) is the default used here. Transfer fees were unified at 0.001% in 2022. Rules can differ by market and change over time — check the latest policy.