Crypto futures costs: maker/taker fees, funding rate and liquidation explained

Why Perpetual Futures Fees Are Charged on Notional Value

The most common mistake in crypto derivatives trading is confusing margin with notional position value. If you risk $100 (1R) with a 2% stop distance on Bitcoin (entry = $60,000, stop = $58,800), your position size is 0.083333 BTC, which has a $5,000 notional value. Even if you use 10× leverage so only $500 of margin is locked, the exchange charges taker fees, slippage and 8-hour funding on the entire $5,000 notional.

Worked Breakdown: Taker Fees, Slippage, Funding & Liquidation

• Maker vs. Taker Fees: A market order (taker) at 0.05% per side on $5,000 notional costs $2.50 to enter and $2.50 to exit ($5.00 round-trip).
• Execution Slippage: At 0.02% per side, entry and stop-market exit slippage add another $2.00, bringing total immediate friction to $7.00 (0.07R).
• 8-Hour Funding Rate: Perpetual contracts exchange funding every 8 hours (Funding = Notional × FundingRate × (HoldHours ÷ 8)). Holding a $5,000 notional long for 24 hours (3 funding intervals) at +0.01% per 8h adds another $1.50 in holding cost.
• Isolated Liquidation Formula: At leverage L = 10× and maintenance margin rate MMR = 0.5%, estimated isolated liquidation occurs at $60,000 × (1 − 0.10 + 0.005) = $54,300 for a long trade (and $65,700 for a mirror short trade). Always verify in the Trade Planner that your stop-loss triggers well before your liquidation price!

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