Late payment reminder emails (with templates)

Updated October 10, 2026

Most late invoices are late because they were forgotten, lost or stuck in an approval queue, not because the client won’t pay. A short, polite reminder at the right moment usually fixes it. Below is a simple schedule and four email templates you can copy, from a friendly heads-up to a final notice.

A simple reminder schedule

3 days before the due date: a friendly heads-up
On the due date or the day after: a polite reminder
7–14 days overdue: a firmer follow-up, by email and phone
30 days overdue: a final notice explaining the next steps

Template 1: friendly reminder before the due date

Use this a few days before payment is due. It reads as helpful rather than pushy.

Subject: Invoice INV-0042 due on 14 November Hi Sam, Just a quick note that invoice INV-0042 for £1,250.00 is due on Saturday, 14 November. I’ve attached a copy for convenience. You can pay by bank transfer to the account details on the invoice. Let me know if you need anything else from me. Thanks, Alex

Template 2: payment is now due

Send this on the due date or the next working day. Keep it short and include the invoice again.

Subject: Reminder: invoice INV-0042 is now due Hi Sam, I hope all is well. Invoice INV-0042 for £1,250.00 was due today. If you’ve already sent payment, thank you, and please ignore this email. If not, could you let me know when I can expect it? The invoice is attached again. Best regards, Alex

Template 3: firm follow-up when overdue

After a week or two without payment, be clear and specific, and ask for a date.

Subject: Overdue: invoice INV-0042 (14 days) Hi Sam, Invoice INV-0042 for £1,250.00 is now 14 days overdue. Could you confirm when payment will be made? If there’s a problem with the invoice or you need it sent to someone else in your team, just let me know and I’ll sort it out today. Kind regards, Alex

Template 4: final notice

Use this only when earlier reminders have been ignored, and only mention steps you are prepared and entitled to take.

Subject: Final notice: invoice INV-0042 Dear Sam, Despite previous reminders, invoice INV-0042 for £1,250.00, due on 14 November, remains unpaid. Please arrange payment by 21 December. If payment isn’t received by then, I will add late-payment interest as set out in our terms and refer the debt for collection. I’d much rather resolve this directly, so please call me if there’s an issue. Regards, Alex

Tips for reminders that work

Put the invoice number, amount and due date in the subject line
Attach the invoice every time so nobody has to search for it
Assume good faith in early reminders; most delays are admin
Ask who approves payments and address the right person
Only charge late fees or interest if your terms or the law allow it
Keep a record of every reminder you send

If reminders don’t work

Pick up the phone: a short call often uncovers the real problem, such as a missing PO number or an invoice sent to the wrong person. Confirm whatever you agree by email afterwards.

If you’re still working for the client, you can pause further work until the account is up to date, provided your contract allows it. As a last resort, a collection agency or a small-claims procedure may be options; in the EU and UK, statutory interest and fixed compensation can be added to unpaid business debts. Get advice before taking formal steps.

Preventing late payments in the first place

Agree payment terms in writing before you start work
Ask for a deposit on larger jobs and from new clients
Invoice on the day the work is delivered, not weeks later
Check the client’s invoicing requirements: PO number, entity name, where to send it
Make paying easy with full bank details or a payment link
Confirm the invoice was received and is in the approval queue

Frequently asked questions

How soon should I send a payment reminder?

A friendly heads-up a few days before the due date works well, followed by a reminder on the due date itself. Don’t wait weeks before following up.

Should I call or email?

Email first, so there is a written record. If two emails go unanswered, a phone call often resolves things faster.

Can I add a late fee to an overdue invoice?

Only if your contract allows it or the law gives you a right to it, as with statutory interest on business debts in the EU and UK. Then reissue the invoice with the fee shown separately.

What if the client disputes the invoice?

Ask exactly which items are in question and fix anything that is genuinely wrong. If needed, issue a credit note for the disputed part so the rest can be paid.

Should I stop working for a client who hasn’t paid?

If your contract allows it, pausing work until overdue invoices are paid is a reasonable step, and often prompts payment. Tell the client in writing before you do it.