Trading cost workspace
Changing fee inputs or target returns immediately recalculates breakeven and exit prices.
Ready for a local calculation.
No uploadCommission minimums apply separately to buy and sell; sell-side transaction tax is added. Use your broker and market rules.
All inputs stay in this browser tab; no account, upload endpoint or remote storage is used.
Breakeven features
A binary search handles minimum-fee thresholds instead of relying on a single linear approximation.
3-step guide
- 1Enter the assumptions and choose an input mode.
- 2Run the local calculation and inspect metrics and the Chart.js visualization.
- 3Copy the summary or download the local text result.
Browser-only privacy
All inputs stay in this browser tab; no account, upload endpoint or remote storage is used.
Financial outputs are scenario estimates; verify material decisions with qualified professionals.
Frequently asked questions
How is the minimum fee applied?
Each side uses the larger of percentage commission and the minimum commission.
Does breakeven include selling costs?
Yes. Selling commission and transaction tax are included in the exit price calculation.
Does this work for every market?
Not automatically. Replace rates, discount, minimums and tax with the applicable broker and market rules.