Monthly on any active project above a defined contract value. The monthly job cost report should show: original budget by cost code, current approved budget after change orders, actual cost-to-date, committed cost-to-date, remaining available budget, and estimate-at-completion. It should be delivered as part of the monthly project update — not provided only when the client requests it. If your current contractor doesn’t provide monthly job cost reports, you don’t know whether your project is on budget. You can ask — and if they can’t or won’t provide it, that tells you something important about how they manage projects financially.