In order to ensure that transactions are processed on digital currency networks, it's best that all outgoing transactions to external digital currency addresses have a mining fee attached to it. This fee is paid to the digital currency miners, who process the transactions and secure the respective network.
Coinbase does not pay the network mining fee on behalf of customers for outgoing digital currency transactions.
The fee you pay for outgoing transactions is calculated dynamically at the time the transaction is created. This means that the fee may be higher or lower depending on the overall transaction volume currently on the digital currency network. The fees are displayed on the send confirmation screen. Please note that no portion of this fee goes to Coinbase.
Coinbase is proud to offer our customers fee-free transactions between Coinbase accounts! Any transactions sent between Coinbase customers by email address take place off-chain (not on the blockchain) at no cost.