Hello Kitkat2. I found this feed searching for a similar question. I'm not sure if you found a better solution for finding the costs included for a percentage of completion timeframe? If I may I'd suggest using the Job Costs by Job and Vendor Detail report found under Contractor Reports. Change the dates on the top of the report using the calendar icons. If you invoice on Mondays, use a billing start date of Monday and end on Sunday (yesterday). Just don't overlap starting or ending dates or you may charge your customer twice. All your entered costs will be listed whether they were marked billable or not. Hope that helps.