The real cost of unbilled jobs.

We watched a shop audit their job log over a rolling 60-day window. They ran 412 jobs. They invoiced 397. The other 15? Completed work, signed off, parts pulled from truck stock, tech time spent — no invoice. A mix of: tech forgot to hit submit; paperwork got wet; job was a go-back on a recent install and nobody linked it; office thought the tech was going to bill it, tech thought the office was going to bill it.

Fifteen jobs. Average ticket $340. That is $5,100 in pure margin that never even made it to the accounts-receivable column — it just vanished. On an annual basis, that is $30,600 for a shop doing the same volume we audited. Not theoretical; actual.

The second-order problem is harder to see. That unbilled job is not just the lost $340. It is also a customer who now has a service history they never paid for. A year later you swing by for a maintenance call and the system has no invoice, no parts used, no record of a technician even being on the property. You are going to re-diagnose a system you already fixed, on the customer's time and your tech's clock, because the record was lost.

The fix is not "bill faster." The fix is making the billing a byproduct of the work — not a separate step that depends on the tech's paperwork discipline at the end of a 10-hour day. When the invoice is generated automatically from the completed job and the pricebook — in the truck, before the tech leaves the driveway — unbilled jobs drop from 3-5% to under 0.5%.

Run your own number. Pull last month. Count jobs completed. Count invoices sent. The delta is your leak. It is almost always bigger than you think.