finance calculator
Calculate stock trade profit, loss, fees, and ROI.
Return when share price, tax assumptions, commissions, or dividend income changes.
Net profit
$1,369
Formula
Net profit = proceeds - investment - commissions + dividends - taxStock profit is estimated from buy and sell prices, shares, commissions, dividend income, and a simple tax rate on positive gains.
Step by step
Example
Buying 100 shares at $50 and selling at $65 with small commissions and dividends shows the net result after estimated taxes.
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Summary
Net profit
$1,369
After estimated taxes and commissions.
ROI
27.37%
Net profit compared with investment.
Gross profit
$1,610
Before estimated tax.
Estimated taxes
$242
15.0% tax assumption.
D3 visualization
Compare investment, proceeds, dividends, taxes, and net profit.
D3 visualization
Show how gross profit is split between taxes and after-tax profit.
Guide
The stock profit calculator estimates the result of buying and selling shares. It includes share count, buy price, sell price, round-trip commission, dividend income, estimated tax, net profit, and ROI.
It is useful when comparing trade exits or understanding how taxes and commissions reduce headline gains.
Enter shares, buy price, sell price, commission, estimated tax rate, and dividends. Review net profit, ROI, gross profit, tax, and commission cost.
Use conservative tax and cost assumptions when comparing real trades because after-tax results matter more than gross gains.
Investment equals shares times buy price. Gross proceeds equal shares times sell price. Gross profit subtracts investment and commissions, then adds dividends. Tax is estimated on positive gains.
The calculator does not distinguish short-term and long-term rates or account-specific tax rules.
Gross profit
Profit before estimated taxes.
Net profit
Profit after commissions, dividends, and estimated tax.
ROI
Net profit compared with the original investment.
No. Enter the tax rate you want to test for the scenario.
Yes. Dividend income can be entered and is included in gross profit.
Even small trading costs reduce the final return and should be included for accuracy.