BigTime gives your team easy access to your time/expense history. You can access a given account/project's entire billing history from a single "financial" page, so you never have to hunt for your invoice history. In addition, you can drill down to the time/expense details for each of these periods right from this screen.
Track time per project phase/estimate as well. BigTime lets you establish budgets for different types of work within every project. Then, we help you track your time and expenses against those categories (so you can see where you stand vs. your budget at any stage)!