The Unbilled Ledger: A November Review of Work Already Delivered
Photo: Custom Neon Images, CC BY 2.0, via Wikimedia Commons
Most owners enter November looking forward: the final quarter, the Christmas shutdown, the January tax position. The more useful question is often backward-looking. What have we already delivered that we have not yet billed? In many UK businesses, particularly professional services and project-based companies, work in progress is the quietest item on the balance sheet and the most avoidable drain on cash flow. A structured November review gives directors time to correct it before the year-end closes and before January brings its own pressures.
Begin with delivery, not the invoice list
An invoice list shows what has been billed. It does not show what has been done. Start with the delivery record: job sheets, project plans, engagement trackers, ticket systems, timesheets or whatever record the business uses to evidence completed work. Reconcile that record against the sales ledger.
The output should be a simple schedule with four columns: client, work delivered, billing trigger, and invoice status. Include small pieces of work. A few modest jobs that never reached an invoice can add up to a material sum, and they are often the easiest to resolve because they need a straightforward administrative action rather than a commercial negotiation.
For fixed-fee engagements, do not assume that time recorded equals value delivered. The relevant question is whether a contractual milestone has been met. For time-and-materials work, the question is whether recorded time has been approved and is ready to bill. The schedule should make that distinction visible.
Test the billing trigger
Not every completed task can be invoiced immediately. The contract, a purchase order, a client acceptance step or an internal approval may stand between delivery and a valid invoice. The November review should test each item against that trigger.
Where the trigger has been met, the default action is to invoice. Where it has not, record the reason and the expected date. A note such as “awaiting client sign-off” is only useful if it carries a name and a follow-up date. Otherwise it becomes a placeholder that survives into the next year.
This is also the point to check that the invoice will be accepted when it arrives. Confirm the purchase order number, the correct billing entity, the expected contact and any portal requirement. An invoice that is issued but rejected for a missing reference has not converted work into cash; it has simply moved the problem.
Interrogate scope creep before it becomes a dispute
Unbilled work often accumulates because the boundary of the engagement moved without a corresponding commercial conversation. Additional reports, extra meetings, small changes and “while you are there” requests are rarely recorded as variations. By November they can look like an uncomfortable surprise if they are invoiced without explanation.
Review the delivery record for out-of-scope activity. Decide, item by item, whether to bill it, absorb it as a relationship investment, or use it as the basis for a future fee discussion. The decision matters less than the discipline of making it deliberately. If the work is to be billed, gather the evidence: emails, change notes, meeting records and any approval of additional work. The conversation is easier when the facts are clear.
Age the work in progress
A total figure for unbilled work is not enough to manage. Age it. A practical set of buckets is 0–30 days, 31–60 days, 61–90 days and over 90 days. The older the item, the more likely it is to require a conversation rather than a routine invoice run.
Assign an owner and an action date to every item above a sensible threshold. That may be the director, a project lead, an account manager or the finance function. The important point is that the schedule produces actions, not merely a report. A November review is useful because it creates a window to resolve older items before the year-end closes and before clients turn their attention to their own year-end processes.
Have the conversation early
The commercial conversation is often the real reason work remains unbilled. Owners worry that invoicing will damage a relationship or prompt questions about value. In practice, delay is more damaging. It makes the eventual invoice look retrospective and gives the client less opportunity to approve or query it.
A straightforward approach works best. Confirm what was delivered, restate the agreed scope or milestone, ask for any required approval, and issue the invoice. Where the client has been slow to engage, set a clear date for follow-up and escalate internally if needed. The tone should be neutral and factual. The objective is to close an administrative loop, not to reopen a negotiation.
Close the loop with credit control
Turning work in progress into an invoice is only the first step. The second is getting paid. Ensure that each invoice is issued with the correct payment terms, remittance details and reference. Diary the follow-up before the due date rather than after it. If a client has a history of late payment, consider whether the November review should also prompt a review of terms, deposits or staged billing for future work.
Build the routine for December and beyond
A single November exercise is valuable, but the underlying problem is usually a missing routine. A weekly or fortnightly work-in-progress report, a billing calendar tied to contractual milestones, and a simple change-control note for out-of-scope requests will prevent the same backlog from rebuilding.
Directors do not need a complex system. They need a reliable link between what has been delivered and what has been billed. November is a sensible time to test that link, clear the accumulated items and put a modest routine in place for the year ahead. The cash is already earned. The remaining task is to make sure the ledger reflects it.
