Why chasing invoices is a good AI job
Chasing money is awkward, so it gets put off, and the longer an invoice sits the harder it gets to collect. The messages themselves are repetitive. Each step says roughly the same thing with a slightly firmer tone. AI is good at writing those steps once in your voice, so sending them becomes a two-minute task rather than an uncomfortable one.
The reminder ladder
| When | Tone | What it says |
|---|---|---|
| 3 days before due | Friendly | Heads-up, invoice attached, how to pay |
| Due date | Friendly | Due today, payment link, thanks |
| 7 days overdue | Polite, direct | Overdue, amount, link, "let us know if there's an issue" |
| 14 days overdue | Firm | Second notice, any late-fee terms already in your contract |
| 30 days overdue | Personal | Phone call from the owner, then an email confirming what was agreed |
| 45+ days overdue | Formal | Final notice and the next step you will actually take |
Adjust the timing to your payment terms. Most accounting software, including QuickBooks and Xero, can send scheduled invoice reminders. Check your plan, then paste your AI-written wording into its reminder templates.
Prompts
I run a [type of business] with [payment terms, e.g. net 15]. Write invoice reminder emails for: 3 days before due, due date, 7 days overdue, 14 days overdue, and a final notice at 45 days. Each under 100 words, in a polite, plain tone that gets slightly firmer each step. Use placeholders [first name], [invoice number], [amount], [due date], [payment link]. Mention late fees only as [LATE FEE TERMS IF ANY]. No threats.
Write a short, friendly phone script for calling a customer whose invoice is 30 days overdue. Open by asking whether there's a problem with the work or the invoice, offer options (pay by link today, a date they can commit to, or a short payment plan I approve), and end by confirming what was agreed.
Here's my accounts receivable aging summary with customer first names, invoice numbers, amounts and days overdue (no addresses or account numbers): [paste]. For each, tell me which ladder step applies and draft the message using my templates: [paste].
Stop rules
- Any reply stops the automation. A person answers.
- A dispute about the work goes to the owner or project lead. Fix the issue, don't keep chasing.
- A payment plan request is approved by you, written down, and the ladder pauses while it's honored.
- Partial payments update the amount before the next message.
- Hardship or sensitive situations get a personal call, not a template.
Prevent overdue invoices in the first place
- Send invoices the day the job finishes, with a payment link.
- Put payment terms and any late-fee terms in your contract or estimate, and get them agreed before work starts.
- Take deposits on larger jobs.
- Use AI to draft a clear "how billing works" note you send with every estimate or proposal (see estimates and proposals).
Cautions
- No threats you won't carry out, and no wording that sounds like a legal demand unless your attorney wrote it.
- Late fees and interest must follow your contract and state law.
- Keep it private. Never discuss a debt with anyone except the customer or their authorized contact, and don't paste bank details into AI tools.
- Handing off to a collection agency or attorney is a business decision for you, not the AI.
Getting paid faster is often one of the quickest returns in your business's AI plan, because the tools are usually already in your accounting software. The plan shows you how to switch them on, in what order, alongside the rest of your admin.