Polite payment reminder email templates

Three emails, sent on a schedule, handle almost every late invoice. They escalate in tone but never in volume — each one stays short, because a long reminder reads as a grievance and gets skimmed.

Copy them as they are, or change the names and keep the structure. The notes under each explain which lines are load-bearing, so you know what you can safely rewrite.

1. Three days overdue — assume it was missed

Subject: Invoice INV-0042 — £1,800.00

Hi Sarah,

Just a quick note that invoice INV-0042 for £1,800.00 was due on 22 August. I imagine it has simply been missed.

You can pay using the details on the invoice, and I have attached another copy in case the first went astray.

If it is already scheduled, ignore this — and thank you.

Best,
Ahad

The invoice number and amount belong in the subject line. Accounts teams work from search, and a subject reading “Following up” is invisible to them.

2. Seven days overdue — state the fact, drop the cushion

Subject: Overdue: invoice INV-0042 — £1,800.00

Hi Sarah,

Invoice INV-0042 for £1,800.00 is now 7 days overdue. I sent a reminder on 25 August.

Could you let me know when it will be paid? If there is a problem with the invoice or something is holding it up internally, tell me and I will sort it.

Best,
Ahad

Two changes matter here. “Overdue” moves into the subject line, and the question becomes when rather than a hint. The offer to fix a problem is not softness — it flushes out the real reason, which is often a missing PO number or an invoice sent to the wrong address.

3. Fourteen days overdue — name what happens next

Subject: Final reminder: invoice INV-0042 — £1,800.00

Hi Sarah,

Invoice INV-0042 for £1,800.00 is now 14 days overdue and I have not had a reply to my previous emails.

Please arrange payment by 12 September. If I have not heard from you by then, I will follow up by phone and consider the options available to me for recovering it.

I would much rather resolve this directly.

Best,
Ahad

A final reminder needs a date and a consequence, or it is just a third nudge. Note what it does not do: it names no lawyer, threatens no court, and stays factual. Specific threats you are not ready to act on cost you credibility the moment you fail to follow through.

What all three have in common

They are short. They put the invoice number and amount in the subject. They never apologise for asking. And each one refers to the last, so the sequence builds a record — which is what you need if this ends up somewhere more formal.

If nothing has worked by day fourteen, the wording is no longer the problem. What to do when a client has not paid covers statutory interest, recovery costs and small claims.