Fees - Intention

The fee structure has not been announced yet. Stay tuned. Rates, volume tiers, and non-trading fees will be published on this page before mainnet. Testnet charges placeholder rates for testing only.

These points are fixed by the protocol and do not depend on the final rates.

How a trading fee is charged

Rule	Detail
Per fill	You pay on each fill’s notional value. An order that fills in five pieces is charged five times. An order that never fills is never charged.
Maker or taker	A resting order that someone trades into pays the maker rate. An order that takes resting liquidity pays the taker rate. Post-only orders always pay the maker rate. See Order types.
On chain	The fee schedule and your account’s rate are chain state. Every charge is in the `FillEvent` of the block. See Verify it yourself.
Closing fee reserved	When you open a position, the protocol reserves margin for its closing fee too, so your reserved margin is slightly more than the initial requirement.

What costs nothing

Placing, amending, and cancelling orders. These are native protocol transactions. They need no gas.
Deposits. The protocol charges nothing. You pay only the source chain’s gas.
Funding. Funding is a transfer between longs and shorts. The protocol takes no share.

Liquidation

A liquidation charges a closing fee at the taker rate, like any trading fee. There is no separate penalty rate.

If you build an integration, read rates from the chain. Do not hard-code them. The rates will change when the fee structure is published.