Certain transaction parameters can affect the behavior and allocation of blockchain and transaction fees. The following lists provide additional details.

Vault accounts

• Transaction source: Your vault account.
• Transaction destination: Every transaction that leaves your vault account requires a fee regardless of its destination.
• Fee source: The fee is taken from the same vault account that contains the transferred asset. 
• Fee selection options: 
  • A net vs. gross amount: the default is net amount.
  • Priority: High, Medium, or Low.
  • Exact fee parameters: Custom.

Exchange accounts

• Transaction source: Your connected exchange account.
• Transaction destination: Several transaction types, such as from a main account to a sub-account or from a sub-account to a sub-account, are considered off-chain transactions and do not require fees. Otherwise, every transaction which leaves the connected exchange account currently requires a fee.
• Fee source: The fee is taken from the same exchange account that contains the transferred asset. You can either transfer the base asset to your exchange account manually or trade between assets at your exchange account to have a sufficient base asset amount for paying future fees.
• Fee selection options: 
  • Only a gross amount.
  • Only a medium amount for the network fee. In addition, some exchanges charge a (usually fixed) service fee for transactions which are made from one of their accounts.
  • No customization of the fee.