Guide
How to Read Trading Fees Before Opening a Position
A repeatable way to price a trade before you place it, applied to Legend's documented fee structure.
Last fact-checked: August 21, 2026
Short answer
Add every cost of entering and exiting: the network fee both ways, any platform fee both ways, expected slippage, and funding if you will hold. Convert the total into the percentage move the market must make before you break even. If that break-even move is large relative to your target, the trade is priced against you.
Why headline fee rates mislead
A quoted rate is per side. You pay it going in and coming out, so the round trip is roughly double. Add a second fee layer, as on Legend, and the round trip doubles again in components. None of this is hidden — it is just rarely added up before the order is placed.
The break-even method
- Write down the notional you intend to trade.
- Add the network fee for entry and exit.
- Add the platform fee for entry and exit.
- Add an honest slippage estimate for the market's liquidity.
- Add expected funding if the position will be held across funding intervals.
- Divide the total cost by the notional. That percentage is your break-even move.
| Market | One side | Round trip | Break-even move from platform fee alone |
|---|---|---|---|
| Perpetuals | 0.05% | 0.10% | 0.10% |
| Spot | 0.25% | 0.50% | 0.50% |
What does that mean in practice?
On perpetuals, the Legend platform fee alone means the market must move 0.10% in your favour before you are level, before network fees and slippage. On spot, it is 0.50%. For a scalping strategy targeting small moves, that is the difference between an edge and no edge.
Editorial explanationThe strategies most damaged by fees are the ones that trade most. If your plan involves dozens of trades a day on small targets, price the round trip first — it usually settles the question.
Where cashback enters the calculation
Referral cashback returns 10% of the Legend platform fee on losing trades. It lowers the cost of being wrong slightly; it does not lower your break-even on a trade you expect to win. Model it as a small reduction in the cost of losses, not as an edge.
A worked example
A $10,000 perpetual position on Legend pays $5 in platform fee each way, so $10 round trip. Assume $6 of network fees round trip and $8 of slippage: total cost roughly $24, a break-even move of about 0.24%. If the trade loses, referral cashback would return about $1 of the $10 platform fee. The cost structure, not the rebate, is what determines whether the strategy works.
Open Legend with the referral cashback applied
If this guide answered your questions and you plan to trade on Legend anyway, registering through the referral link is what makes the documented 10% cashback on Legend platform fees from losing trades available on your account.
Affiliate link. The site owner may earn a portion of Legend's builder-fee revenue if you trade. Perpetual trading and leverage can result in rapid losses. Read the full affiliate disclosure.
Frequently asked questions
Should I include funding in the break-even?
Yes, if you plan to hold across funding intervals. For intraday trades it is often negligible; for multi-day holds it is not.
How do I estimate slippage?
Look at the depth of the order book at your intended size in the market you are trading, and assume conditions will be worse when you need to exit quickly.
Does cashback change my break-even?
Not on winning trades. It reduces the platform-fee cost of eligible losing trades only.