No. BitMEX does not charge any fees on deposits. You can fund your BitMEX account without incurring any deposit charges from the platform. When you send cryptocurrency to your BitMEX deposit address, the platform does not deduct any amount from the incoming funds.
Note that while BitMEX itself does not levy deposit fees, the blockchain network or the platform you are sending from may charge its own transaction or withdrawal fees. These external fees are outside of BitMEX’s control.
To keep costs low, consider checking network conditions before initiating a deposit. Some blockchains experience periods of higher congestion, which can increase the fees charged by the sending platform or network. Depositing during off-peak hours may result in lower external transaction costs.