We're trying hard to reach scale in the next few months. We charge a flat $99 upon collection. I would love if we could charge the debtor the fee but the first rule of collections is you grab what you can get. Our commercial collection attornies can tax the costs of the action (court filing fees, service fees,etc) to the debtor, which then becomes part of the judgment but most of the time when the freelancers has the option of getting paid before there is a judgment then those fees tend to get waived.