Most online casinos don't charge fees for Neteller deposits, but it's best to check the payment terms first.
Neteller charges fees for withdrawals and deposits into the wallet. Depositing fees are 1% of the deposit amount for a bank transfer, and the withdrawal fees depend on the method. A bank transfer is $10, other methods, are charged at other rates.
Sending money to another Neteller user costs 2.99% for Standard users, with a minimum of $0.50, 1.45% for Neteller True users, which you become once you've verified your identity. A Neteller to Neteller transfer is free for VIP users.
You can also buy and sell crypto currency at varying rates and fees.
These fees are valid at time of writing, they can change in the meantime.