The average SME entrepreneur has 8–14% of annual revenue tied up in receivables. A lot of it is in transit, on schedule. But there is also a tail of customers who pay just a little later — and without a consistent reminder routine that tail grows.
Sending reminders is not fun. It is repetitive, commercially awkward, and easily postponed until it really bites. Exactly why it is ideal for AI support: structured, paced, and with the right tone. This article: how.
Pulling the overview
Always start with this:
"Give all open sales invoices more than 14 days past due, grouped per customer. Show customer name, invoice number, amount and days late."
The AI calls cashflow_receivables_search, filters by due date, and presents it cleanly per customer. Your work list.
Segment: not every customer deserves the same note
A 10-year loyal customer gets a different tone than a one-time client. Ask:
"Split late payers into three groups: A) customers with >€25,000 revenue with us in 2025, B) between €5,000 and €25,000, C) below €5,000. Show total outstanding per group."
The AI combines open items with historical revenue. Result: A-customers get a phone call and a friendly email, C-customers get a more formal reminder.
Drafting reminders
For group B (mid-tier), generate draft reminders:
"Per customer in group B draft an email. Tone: friendly but clear. State invoice number, outstanding amount, days late, and request payment within 7 days. End with the option of a call if there is a payment issue."
One draft per customer ready to adjust to the specific relationship. Faster than writing each from scratch, with consistent tone.
Escalation: second and third reminders
For repeat offenders:
"Which customers have been outstanding more than 60 days and have already received an earlier reminder? Show the reminder history."
The AI gives you the escalation list. For these customers a phone call is more effective than another email.
Considering debt collection
For truly stuck accounts:
"Which customers have outstanding amounts above €1,000 older than 90 days past due, with no response to earlier reminders?"
Your debt-collection file. Combine with a check on any active relationships (open orders, contracts) before handing over.
Prevention: early signals
The best reminder strategy is needing fewer reminders. Set up a weekly pre-due-date routine:
"Which open invoices are due next week, with customer and amount?"
A friendly "heads-up" before the deadline expires prevents half the late payments. Customers appreciate it — and you send fewer real reminders.
Tracking payment behaviour
Quarterly:
"Which customers pay latest on average in 2026? Give the top 10."
Intelligence for your sales team. On new orders to these customers: tighter terms (upfront, direct debit, shorter due dates).
SEPA direct debit as solution
For structurally late payers: a direct-debit mandate eliminates the problem:
"Which customers with a pattern of late payments have no SEPA mandate yet? Produce a list for my sales team to propose switching to direct debit."
See also cashflow forecasting with AI for smart timing of direct debits.
Tips for effective reminders
- Be consistent: a fixed weekly reminder routine beats a sporadic action when things really pinch.
- Segment on tone and channel. A phone call often beats a third repeat email.
- Document every contact (notes on the customer) so follow-up stays professional.
- Combine with our guide on querying outstanding invoices for the basics.
Getting started
Start today with a 10-minute weekly routine: query, segment, draft, send. Follow the MCP setup guide, see the prompt library for more AR prompts, and watch how many write-offs and bad debts you avoid in a few months.