Brief sections
The leak
The job wraps on the 3rd. The invoice goes out on the 24th, after someone chases down the foreman’s notes, reconciles the hours, remembers the change order that was agreed in a text message, and finds the receipts. Three weeks of float you gave away — working capital you’re lending your customers interest-free — plus a dispute rate that climbs with every day between the work and the bill, because memory fades on both sides. Write-offs from “I don’t remember approving that” are an invoicing-lag cost wearing a customer-relations costume.
What AI realistically does here
It watches for the completion signal — job closed in the field app, final delivery logged, ticket marked done — and assembles the draft invoice the same day: hours from the time system, materials from the PO trail, contract rates and terms applied, change orders pulled in and itemized. A human reviews and sends; nothing bills automatically. The drafting is the easy majority of the work. The honest constraint is upstream: if completion isn’t recorded anywhere — if “done” is a feeling the foreman has — the fix starts with one field and one habit, and that’s workflow redesign, not AI.
What has to be true first
- A completion signal a system can see, even a crude one. One status field, filled in the day the work ends, is enough to hang everything downstream on.
- Billing rules that can be written down: rates, terms, markup, how change orders get priced. Exceptions can stay human; the base case has to be encodable.
- A reviewer who sends the same week. A draft that sits three weeks in an approval queue has moved the lag, not closed it.
What we'd install
Invoicing automation scores well in the opportunity portfolio because the value is measurable in the crudest possible unit: days. The billing rules go into the SOP library, the invoicing agent joins the roster owned by whoever owns receivables, and the value ledger tracks days-from-completion-to-invoice and dispute rate — with the before-numbers measured in week one, not guessed at later. Sequence on the AI operating partnership.
Worth it?
Pull your last twenty jobs and average the days from completion to invoice — owners tend to guess a week and find three. The calculator below covers the assembly labor with an illustrative annual figure; the float and the dispute write-offs come straight off your own receivables aging, no calculator required. The scorecard checks whether the completion and time data exist to feed the build.