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Overdue invoice reminder emails: polite nudge to final notice
Chasing money feels awkward, so it gets put off, and the longer an invoice sits the harder it is to collect. A staged, polite process takes the emotion out of it.
A simple four-stage process
| When | What to send |
|---|---|
| A few days overdue | Friendly nudge: assume they forgot |
| About 1 to 3 weeks overdue | Firm reminder: restate the amount, due date and how to pay |
| Over 3 weeks overdue | Final notice: give a date and say what happens next |
| Any time they say they're struggling | Offer a payment plan in writing |
Sample friendly nudge
"Hi Sam, just a quick reminder that invoice 1043 for $660 was due on 3 November. I've attached a copy. You can pay by bank transfer to BSB 000-000, account 12345678. Let me know if there's any problem. Thanks, Alex."
Sample firm reminder
"Hi Sam, invoice 1043 for $660 is now 14 days overdue. Could you please arrange payment by Friday 21 November? Bank details are below and a copy is attached. If there's an issue with the invoice, please tell me so we can sort it out."
Final notice
Keep it factual: the amount, how overdue it is, the date you need payment by, and the next step you'll actually take. Don't threaten anything you won't do. Stay polite; it may end up being read by someone else.
Late fees and interest
Only charge a late fee or interest if your agreed terms said so before the work started. Put your payment terms on every quote and invoice. If you want to charge interest, say so in the terms upfront. For disputes, small business commissioners and your state's tribunal or court can help; get advice for your situation.
Want it done for you? Late Payment Chaser: Unpaid Invoice Tracker + Reminder Writer (AU)
An offline tool that tracks who owes you, colours overdue invoices orange then red, tells you the next step, and writes email and SMS reminders at 4 stages filled in with the client, amount and days overdue.
- Unpaid-invoice tracker with totals owed and overdue; CSV export
- Reminder emails and SMS: nudge, firm, final notice, payment plan
- Simple late fee and interest calculator
- Sample payment-terms line for your quotes
US$9.99 one-time on Whop. Instant download.
See it on Whop →Related guides
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General information only, not legal or financial advice. The sample wording uses made-up names, numbers and bank details. Last checked 16 Nov 2026.