Has any progress on this been made by QBO?  I just switched from Desktop to Online and have the same issue.  Since QBO seems to make it impossible to show Prior % paid on an invoice, or even invoice a percentage of what's left in a line item to reach 100%, how is everyone working around this?  This is so fundamental to the way we communicate with clients and document percentage completed vs percentage invoiced that I'm struggling to understand the value of percentage billing at all as set up in QBO.