Unbilled Revenue

Unbilled revenue is work your team has completed and delivered — it's past the WIP stage — but an invoice hasn't gone out yet. Maybe your invoicing runs on a monthly cycle and the work was done mid-month. Maybe the project manager hasn't reconciled hours yet. Maybe the deliverable is waiting for client approval before you feel comfortable billing. Whatever the reason, it's revenue you've earned but haven't formally asked to be paid for.

Unbilled revenue is different from WIP. WIP is work that's still in progress — you're still actively producing deliverables. Unbilled revenue is work that's done but the billing process hasn't caught up. Both are cash flow drains, but unbilled revenue is more frustrating because there's no operational reason for the delay — it's purely an administrative and process issue.

Every day revenue sits unbilled, it pushes your actual cash receipt further out. If the work is done on the 15th, you bill on the 1st, the client pays net-30 from invoice date, you're now 45+ days from doing the work to getting paid. That's your agency financing 45 days of operations out of pocket on every project.

Unbilled revenue is the easiest cash flow problem to fix because it's entirely within your control. You don't need the client to do anything differently — you just need to bill faster. Agencies that go from monthly invoicing to bi-weekly invoicing, or from milestone-based billing to time-and-materials invoicing, often see dramatic improvements in cash flow without changing anything about their pricing or clients.

Track unbilled revenue as a separate metric from WIP and accounts receivable. If it's consistently more than one week's worth of revenue, your invoicing process needs attention.