Fee drag calculator: the yearly cost of trading often
Multiply your round-trip cost per trade by your monthly trade frequency to see your annual hurdle rate and multi-year compounding drag.
How High Trade Frequency Quietly Erodes Compounding
A $6.00 round-trip cost (including commission, spread and taxes) looks tiny on a single trade, so charting terminals rarely highlight it. However, if you place 20 trades a month (240 trades a year) on a $10,000 account, you pay $1,440 per year in direct friction—an automatic 14.4% annual hurdle rate before you make a single dollar of net gain. Use this calculator to compare active turnover drag against lower-frequency swing setups.
How the calculator works
Cost drag = Yearly cost ÷ Starting capital
The second part of the result compares two simple paths: your gross return compounding on its own, and the same return with the yearly cost drag taken off every year. It is a rough model: in real life costs come out trade by trade and your capital changes during the year, but it shows the size of the effect clearly.
Worked example
An account of $10,000 pays $6 per round trip (commission, spread and slippage together) and trades 20 times a month. That is $6 × 20 × 12 = $1,440 a year, or 14.4% of the account. Before the trader makes a single cent of net profit, the strategy has to earn 14.4% a year just to cover costs. At 10 trades a month the drag halves to 7.2%; at $3 per round trip and 10 trades a month it is 3.6%.
Ways to reduce fee drag
- Trade less often, or only the setups with the clearest edge.
- Use wider stops and targets so each trade’s costs are a smaller share of the move. The Trade Planner shows costs in R for every trade.
- Compare your broker’s total costs, not just the headline commission: spreads, currency conversion and platform fees count too.
Frequently asked questions
What is included in round-trip cost per trade?
Include both entry and exit commissions, average bid-ask spread paid, execution slippage and any statutory transaction taxes.
What does this calculator exclude?
It does not include personal income or capital-gains taxes, account maintenance fees or overnight financing charges that you did not include in your per-trade cost.
