Our minimum fee is 0.5% plus 0.001 BTC for every forward address.
We recommend to set higher custom fee to prevent advanced amount-based blockchain analysis. Already just slightly more than 0.5% is fine. BitMixer2 keeps pride in being the most inexpensive Bitcoin tumbler - while still achieving the highest level of quality. That is only possible because of the extremely high volumes we are mixing every day. Thankyou for your repeated business!