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Fees on v3 are set per account, not globally, so your rates may differ from another account’s. There are exactly five, all returned by GET /user/fees-v3. Each is a decimal-fraction string — "0.05" is 5%, "0.005" is 0.5% — and null means the rate is unset and nothing is charged.

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The five rates

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How payout fees are charged

The four payout fees are charged on profit (totalReturn − totalStake), at settlement, and only on a bet that won. A loss and a void are never charged. Which of each maker/taker pair applies comes from your side of the fill: the resting order is the maker, the incoming order that filled it is the taker. What you were actually charged lands in settlement.settleFeeAmount on the bet — see GET /trades-v3.

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The refund fee

refundFee is charged at fill time instead of settlement, and applies to the whole capital-efficiency refund rather than to profit. It has no maker or taker variant. The refund you receive, ceRefundAmount, is already net of it, and the fee itself is ceRefundFeeAmount. See Capital efficiency.

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Finding your rates

A null rate means nothing is charged for that category — treat it as 0.

Get your fees

The endpoint, every field, and what null means.

Capital efficiency

Where the refund fee applies, and how refunds are tracked.

Reading balances

What you can spend, and what settlement pays out.
Last modified on August 11, 2026