# Fee types

We charge gas fees and fixed fees.&#x20;

### [Gas fees](../trading/fees)

The gas fee covers the cost for deploying actions on-chain. Some actions on the Exchange will require the user to specify the maximum they are willing to spend on Gas.&#x20;

The semantics of the gas fee work the same way as transaction fees:

* The gas fee is an absolute value and represents the cost required to perform the transaction.&#x20;
* The gas fee covers on-chain actions that our Exchange performs on behalf of the user
* This amount may also be paid in whitelisted cryptocurrencies such as USDC / USDT via paymaster

On the LayerAkira spot DEX, the token the user pays gas with will depend on if the user specifies the "spend" or "receive" field:

* If an amount is specified in the **spend field**, gas is paid in the **receive currency**.
* If an amount is specified in the **receive field**, gas is paid in the **spend currency**.

This flexible system ensures gas fees are intuitive and align with the user’s chosen transaction parameters.

### [Fixed fees](../trading/fees)

This will be calculated as a percentage relative to the order size.

When orders remove liquidity from the order book, they will incur a **taker fee** of 10bp&#x73;**.**&#x20;
