I manage money for institutional clients where their internal departments calculate my quarterly fees. All I do is get the check in the mail every quarter. Recently a retail customer has expressed interest in one of my programs. I've looked into Interactive Broker's advisor platform but it seems to only be able to deduct management fees (ie. a fixed percentage of assets) and cannot calculate high watermarks, etc. I could calculate the fees myself and send the retail client an invoice but it's a pain, especially if I start getting more retail managed accounts. Does anybody know other retail oriented futures brokers who calculate management and incentive fees on retail managed accounts and send me the fees automatically? Thanks.