Inside the Build: Cutting a Debt-Recovery Legal Bill by 70% with an AI Follow-Up Workflow

Every business that sends invoices eventually meets the same quiet problem: the work is done, the invoice goes out, and then nothing happens. The payment doesn't come.

What happens next is where the money leaks.

The problem: chasing the debt costs more than the debt

For most New Zealand businesses, the overdue-invoice process looks like this:

• An invoice goes past due.
• Someone — usually someone senior, usually busy — has to remember to chase it.
• A few awkward emails and phone calls get squeezed in between everything else.
• The debt drags on. Eventually it gets handed to a lawyer or a collections agency.
• The legal and collection fees start to climb — often past the value of the debt itself.

That last point is the trap. By the time a business engages lawyers, it can spend more recovering the money than the money is worth. So a lot of debt simply gets written off — not because it couldn't be recovered, but because chasing it properly was too manual and too expensive.

The real cost isn't only the written-off debt. It's the senior time spent chasing, the cash-flow gap while the money sits unpaid, and the legal bills on the debts that do go the distance.

The solution: an AI follow-up workflow that never forgets

We built an AI workflow that takes the chasing off people's desks entirely.

• It watches for invoices as they go overdue.
• It generates the follow-up emails automatically — in the business's own tone, referencing the specific invoice, amount, and due date.
• It sends them periodically, on a sensible cadence: a gentle nudge first, then firmer reminders as the debt ages — so nothing slips and nobody has to remember.
• It escalates only the genuinely stuck debts to a person, with the full history attached.

The goal isn't to be aggressive. It's to be consistent. Most overdue invoices aren't disputes — they're things that quietly fell off someone's radar at both ends. A steady, professional, automated follow-up gets the majority of them paid without anyone having to pick up the phone.

The result

• Payments came in. Invoices that would have drifted toward write-off — or toward lawyers — got paid, because the follow-up actually happened: every time, on time.
• The process changed. Chasing debt stopped being a stressful, manual job that depended on someone remembering. It became a system that runs quietly in the background.
• The legal bill dropped by around 70%. With most debts recovered earlier through consistent automated follow-up, far fewer ever reached the stage of needing a lawyer.

Why it works

The lesson is the same one we see across nearly every operation we automate: the value isn't the AI, it's the consistency the AI makes possible. People are excellent at judgement and terrible at remembering to send the fourth polite reminder on a wet Tuesday afternoon. The workflow does the remembering, the writing, and the sending — so people only step in when judgement is actually needed.

If unpaid invoices are quietly costing your business — in written-off debt, senior time, or legal fees — this is exactly the kind of workflow we build.

Daniel Thomson runs AiTearoa — operations-first AI for New Zealand businesses. If debt recovery is costing you more than it should, get in touch at hello@aitearoa.ai.