The fastest way to get an overdue invoice paid is a short, consistent sequence of emails that gets firmer over time, not one perfectly worded message you agonise over. Below are five templates that do exactly that, from a friendly nudge before the due date to a final notice at 30 days. Copy them, swap in your details, and send.
The short answer
Use a five-step ladder: a friendly reminder around the due date, a polite follow-up at about a week overdue, a firm reminder that mentions the late fee at two to three weeks, a final notice at 30 days, and an escalation email if it goes further. Keep the tone warm early and factual late, never threatening, and always state the one next step you want the customer to take.
- Friendly nudge, on or just after the due date.
- Polite follow-up, around 7 to 10 days overdue.
- Firm reminder with the late fee, at 2 to 3 weeks.
- Final notice, at 30 days.
- Escalation, when the final notice passes.
How to use these templates
A reminder cadence that stays consistent without nagging.
Three things make a sequence work. Send it consistently, because predictability is what changes behaviour, not a single sharply worded email. Personalise the obvious fields, so it reads as you rather than a mailshot. And get firmer in steps, so a good customer who simply forgot is not hit with a final notice on day two. Replace anything in square brackets with your own details before sending.
The friendly first nudge
On or just after the due date. Assume the best: most people have simply not got to it yet.
Subject: Invoice [INV-1042] is due on [date]
Hi [First name],
Just a quick note that invoice [INV-1042] for [£amount] is due on [date]. If payment is already on its way, thank you, and please ignore this.
You can pay online in a couple of clicks here: [payment link].
Any questions at all, just reply and I will sort it.
Best wishes,
[Your name], [Company]
The polite follow-up
Around 7 to 10 days overdue. Still friendly, but now asking for a date.
Subject: Invoice [INV-1042] is now overdue
Hi [First name],
I wanted to check in on invoice [INV-1042] for [£amount], which was due on [date] and is now a little overdue. These things happen, so no problem at all.
Could you let me know when I can expect payment, or pay online here: [payment link]?
If anything is holding it up, including a query on the invoice, just tell me and I will help.
Thanks,
[Your name], [Company]
The firm reminder, with the fee
A vague reminder
- No invoice number or amount
- No due date or terms
- No clear next step
- Easy to ignore
A reminder that gets paid
- The invoice number and exact amount
- The date it was due
- One clear action and a pay link
- Names the fee that now applies
The same email, rewritten to actually get a response.
At two to three weeks overdue. Factual and direct, and the first mention of the late fee you are entitled to.
Subject: Overdue invoice [INV-1042], action needed
Hi [First name],
Invoice [INV-1042] for [£amount] is now [X] days overdue. I would be grateful if you could arrange payment within the next few days.
As a business-to-business invoice, this is now eligible for statutory late payment interest and a fixed recovery fee under UK law. I would much rather not apply it, so please do get this settled to avoid it.
You can pay here: [payment link]. If there is a problem, let me know today and we will find a way forward.
Regards,
[Your name], [Company]
The final notice
At 30 days. Calm, formal and clear about the next step. No threats, just facts and a deadline.
Subject: Final notice for invoice [INV-1042]
Hi [First name],
Despite previous reminders, invoice [INV-1042] for [£amount] remains unpaid and is now [X] days overdue. A late payment fee of [£fee] has been applied, as set out in my last email.
This is a final notice. Please pay the full balance of [£total] by [date]. If payment is not received by then, the account will be passed for further recovery.
Pay now: [payment link]. If you intend to pay but need a short arrangement, contact me today and I will consider a payment plan.
Regards,
[Your name], [Company]
The escalation email
Each step raises the stakes a little, on a predictable schedule.
When the final notice deadline passes. Brief, factual, and the last message before a third party is involved.
Subject: Invoice [INV-1042]: next steps
Hi [First name],
The deadline in my final notice for invoice [INV-1042], now [£total] including fees, has passed without payment or contact.
Unless the balance is paid in full by [date], I will refer this account to [a debt recovery partner / our solicitor] to recover the amount, along with any further costs allowed under the Late Payment of Commercial Debts (Interest) Act.
I would still much prefer to resolve this directly. To do that today, pay here: [payment link], or call me on [phone].
Regards,
[Your name], [Company]
Subject lines that get opened
The email cannot work if it is not opened. Keep subject lines specific and free of anything that looks like spam. A few that tend to perform:
- Invoice [number] is due on [date]
- Quick question about invoice [number]
- Invoice [number] is now overdue
- Payment reminder: invoice [number]
- Final notice for invoice [number]
Put the invoice number in the subject so it is searchable, keep it under about eight words, and avoid all-capitals or words like urgent that trip spam filters. A reminder that lands in the inbox beats a cleverly worded one that lands in spam.
Adapt the tone to the customer
One ladder does not fit every account. A long-standing client who pays on day 35 every time needs a gentler touch than a new customer who has gone silent. Soften the early steps for the relationships you value, and do not be afraid to move faster on accounts that have form. The escalation language only ever comes out when the friendlier steps have genuinely been tried.
Where automation takes over
Templates only help if someone sends them, on time, every time, which is exactly the part that slips. Accounts receivable tools send the whole ladder for you, from your own email address, and stop the instant an invoice is paid. Paidnice, for example, runs sequences like these across email, SMS and posted letter and applies the late fee automatically; it holds a 5-star average on the Xero App Store. For a comparison of the options, see our guide to credit control software for Xero.
Frequently asked questions
How many times should I email about an overdue invoice?
Most invoices are recovered within the first two or three reminders, but the ones that need more are usually the ones most at risk, so do not stop too early. A five-step ladder, from a friendly nudge to a final notice, covers almost every case without becoming a nuisance to good customers.
What should an overdue invoice email say?
Keep it short and specific: the invoice number and amount, how overdue it is, a single clear next step (a payment link or a date), and a way to flag any problem. Open warm, get factual as it ages, and never threaten.
When should I mention a late fee?
Around two to three weeks overdue, in the firm reminder, before you actually apply it. Mentioning it first gives the customer a chance to pay and avoid it, which is usually what you want. For UK B2B invoices you are entitled to statutory interest and a fixed fee.
Should I send reminders before the due date?
Yes, for higher-value invoices and longer payment terms. A short, friendly note a few days before the due date removes the friction before it builds and tends to bring payment forward, without feeling like chasing.
The bottom line
You do not need the perfect email, you need a consistent sequence. Start gently, get firmer in steps, mention the fee before you apply it, and always give one clear next action. Send it every time, on time, and most invoices come in well before the final notice.
Sources and further reading
Templates are general examples, not legal advice; adapt the wording and any fee references to your own terms. This resource is published by Accounting.Events, powered by Paidnice.
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