Profit / Return Calculator

How is the return rate calculated?

Net profit ÷ actual capital invested × 100. The capital invested is the buy amount plus the buy commission — the money that really left your account. That makes it slightly lower than a plain (sell − buy) ÷ buy calculation. Buying at 10,000 and selling at 12,000 looks like 20%, but with fees and tax the real return is 19.78%.

Where do the fee and the tax apply?

The commission applies to both sides — the buy amount and the sell amount. The tax applies only to the sell amount. So one round trip pays the commission twice and the tax once. The breakdown below the result shows each one separately.

What fee and tax rates should I enter?

Use the rates on your own account; the defaults are only an example. Tax rules vary by instrument, market and year, and foreign stocks or crypto follow different regimes. Check your broker’s schedule or your tax authority for current figures. (This is not investment or tax advice.)

Why is there no currency symbol?

The maths is identical in any currency, so no symbol is attached — read the numbers in whatever currency you entered. Everything is calculated in your browser and nothing is sent to a server.

After a loss, how much does it have to rise to break even?

Loss rate ÷ (100 − loss rate) × 100. A 20% drop needs a 25% rise and a 50% drop needs 100%, and fees and tax push the figure a little higher still. It is simply the arithmetic of recovery put into numbers, not advice to sell or to hold.

Does it include dividends in the total return?

No, the calculator covers trading gains only. For a rough figure, add the dividend per share you received while holding to the sell price and the result moves closer to a total return. Dividends are usually taxed separately and at a different rate from transaction tax, so for an exact number work from the amount actually credited.

Can I see an annualised return?

There is no holding period field, so nothing is annualised here. Take the return r and the holding period n in years: raise (1 + r) to the power of 1/n and subtract 1. A 10% gain over six months means n is 0.5 and annualises to roughly 21%; the same 21% earned over two years is only about 10% a year.

How do I handle exchange rates on a foreign stock?

There is no currency conversion, so keep everything in one currency. Enter dollars to get a dollar-based return, or convert the buy price at the rate on the buy date and the sell price at the rate on the sell date to read it in your home currency. The spread you pay to convert is not included.