Payment reminder email: six templates, in order
A reminder email needs three things: the invoice reference, the amount and one clear ask. Everything else is tone — and tone decides whether you keep the client.
5 documents free. PDF, photo or XML — data out as CSV, Excel or JSON.
1. Three days before
Subject: Invoice 1042 — due Friday
«Hi Anna, a quick heads-up that invoice 1042 (€2,400) is due this Friday. No action needed if it is already scheduled — the file is attached in case it helps.»
Why it works: it assumes good faith and removes the excuse of «we never got it».
2. On the due date
Subject: Invoice 1042 due today
«Hi Anna, invoice 1042 for €2,400 is due today. Could you confirm it is queued for payment?»
One question, one answer — that is the whole point.
3. One week late
Subject: Invoice 1042 — now 7 days overdue
«Hi Anna, invoice 1042 (€2,400) was due on 14 November and is now a week late. Is there anything blocking it on your side? If it helps, I can resend the PDF or a payment link.»
Ask about the obstacle, not about the money: obstacles have owners.
4. Two weeks late
Subject: Invoice 1042 — payment date needed
«Hi Anna, invoice 1042 for €2,400 is two weeks overdue. Please confirm a specific payment date this week. If something has changed on your side, tell me and we will find a plan.»
Now you ask for a date, not for reassurance.
5. Payment plan
Subject: Invoice 1042 — proposed split
«Hi Anna, to keep things moving: €1,200 this week and €1,200 in two weeks. If that works, I will send the schedule in writing.»
A written plan converts a stuck invoice into two dates.
6. Final notice before escalation
Subject: Invoice 1042 — final reminder before further steps
«Hi Anna, invoice 1042 (€2,400) remains unpaid 30 days after the due date. Unless payment or a plan is agreed by Friday, we will hand the matter to our collection process.»
State the next step factually. Threats that you do not carry out teach the client to ignore you.
Frequently asked
Should I attach the invoice every time?
Yes for the first two, then reference the number only — repeated attachments look like you are starting over.
Is «friendly reminder» in the subject a good idea?
It works when the tone matches. A friendly subject with a firm body reads as manipulation.
Read next
DueBuddy — invoices and reminders, without the enterprise contract