How it works
Crypto exchange pricing is deliberately confusing, and the confusion has a purpose: it hides the real cost. There are three separate charges, and the headline 'zero commission' platforms typically recoup everything through the widest one. The taker fee is the advertised percentage on each trade. The spread is the gap between the price you buy at and the price you can immediately sell at — a genuine cost on every trade that no commission-free platform mentions, often one to two percent on a simple buy button against a tenth of that on a real order book. Withdrawal fees are fixed per transaction and punish frequent small moves. This tool multiplies your per-trade cost — fee plus spread — across your monthly volume, adds a year of withdrawals, and shows the annual total for each platform. The defaults make the point: a 0.4% taker fee with a tight 0.1% spread beats a zero-commission platform running a 1.2% spread on every trade of meaningful size. The effective-rate line expresses the cheaper option as a single percentage of your volume, so you can compare any platform to it at a glance. Re-run with the fee tier your real 30-day volume would reach, not the headline rate.
Formula
Per-trade cost = size x (taker fee + spread) | Annual = per-trade x trades x 12 + withdrawal fee x withdrawals
Tips
- Always add the spread to the stated fee — the spread is the cost zero-commission platforms do not advertise.
- Use the advanced or order-book interface, not the instant buy button; the spread difference is usually over 1%.
- Batch withdrawals — fixed per-transaction fees punish frequent small moves hardest.
- Re-run at the fee tier your real 30-day volume reaches, since tiers fall steeply with volume.
- Security and custody matter more than a 0.2% fee gap; a cheaper exchange that loses your coins is not cheaper.
Frequently asked questions
- Is zero-commission crypto trading really free?
- No. The platform earns through the spread — the gap between your buy and sell price — which on a simple buy button often runs 1% to 2% per trade. That is usually more expensive than a 0.4% commission on a tight order book. Compare fee plus spread, never the commission alone.
- What is the spread on a crypto exchange?
- The difference between the price you pay to buy and the price you would get selling immediately. It is a real cost on every trade even when no commission is charged, and it is the main revenue source for platforms advertising zero fees.
- How can I lower my crypto trading fees?
- Use the order-book or advanced interface instead of instant buy, which cuts the spread sharply. Batch withdrawals to spread fixed fees over larger amounts. Reach a higher volume tier if your trading justifies it. And compare the total of fee plus spread, not either alone.
- Do crypto withdrawal fees matter?
- They are fixed per transaction, so they matter most to frequent small withdrawers — a $2 fee on a $100 withdrawal is 2%, the same as a wide spread. If you move coins to self-custody often, batch them into larger, less frequent transfers.
- Should I choose a crypto exchange on fees alone?
- No. Security, custody model, regulatory standing and insurance matter more than a fraction of a percent in fees. The cheapest venue is not cheap if it freezes withdrawals or fails. Compare fees only among platforms you already trust with your funds.