Yes. While Payload cannot automatically charge the fee back to agents, you can create a deduction in Loft (for example, "Payload Processing Fee") and set it to $1.50, or any amount you choose. You can then assign this deduction to agent profiles so that the fee is automatically deducted each time an agent is paid.
This setting cannot be changed within Loft. To update which bank account Payload uses for processing fees, please contact Payload Support at help@payload.com. Their team can assist with changing the account from which the fees are withdrawn.