Why most payment reminder emails get ignored.
Before we get to the templates, it is worth understanding why the emails you have been sending are not working.
Most payment reminder emails fail for one of three reasons:
- They are too vague. "Just a reminder about your outstanding balance" tells the recipient nothing. Which invoice? How much? When was it due? If they have to go digging for the details, they will not bother.
- They are too passive. "We would be grateful if you could look into this at your earliest convenience" is not a follow-up. It is a suggestion. It gives the recipient permission to ignore you.
- They sound automated. Your client receives dozens of automated emails every day. If your reminder looks and reads like a system-generated message, it will be treated like one: ignored, archived, or deleted.
The emails below are designed to avoid all three problems. They are specific, direct, and human. They include every detail the recipient needs to pay you, and they make it easy for them to respond if there is a problem.
Qascade Tip
The golden rule: Every payment reminder email should include the invoice number, the amount owed, the date it was due, and a way to pay. If any of those four things are missing, you are making it harder for them to pay you. It's even better if you can attach the invoice directly.
The timeline: when to send what.
Timing matters as much as wording. Here is a general schedule we recommend (and similar to the one we follow for our outsourced credit control clients):
- 3 days before the due date — a friendly heads-up
- On the due date — a polite confirmation
- 7 days overdue — a direct follow-up
- 14 days overdue — a firm reminder
- 30 days overdue — a formal notice
- 45+ days overdue — final notice before escalation
The tone shifts at each stage. That is deliberate. You start with the assumption that everything is fine and the client just needs a nudge. With each step, you get more direct. By the final notice, the tone is professional but unmistakable: this needs resolving now.
Good To Know
Why start before the due date? A reminder sent 3 days before the invoice is due catches problems early: wrong email address, missing purchase order number, a dispute about the work. Fixing these before the deadline means the payment lands on time instead of getting stuck in someone's "I will deal with that later" pile.
Template 1: 3 days before the due date.
Purpose: A friendly heads-up that the invoice is coming due. Not chasing. Just making it easy.
Subject line: Invoice [number] — due on [date]
Email body:
Hi [first name],
Quick one. Invoice [number] for £[amount] is due on [date].
I have attached it again here for convenience. If there are any questions or issues with the invoice, let me know and I will get them sorted before the due date.
Many Thanks,
[your name]
Why This Works
It is short, specific, and assumes the best. It also removes the most common excuse ("I never received the invoice") by attaching it again. And by inviting them to flag any problems, you are giving yourself time to resolve disputes before the invoice becomes overdue.
Template 2: On the due date.
Purpose: A polite nudge on the day. Still friendly. Still assuming the best.
Subject line: Invoice [number] — due today
Email body:
Hi [first name],
Just a quick note that invoice [number] for £[amount] is due today.
If this has already been processed, ignore this and thank you. If not, I have attached the invoice again below.
Let me know if you need anything from my end.
Many Thanks,
[your name]
Why This Works
The "if this has already been processed, ignore this" line is important. It gives the client an out if they have already paid, and it avoids sounding accusatory. At this stage, you are still in friendly territory.
Template 3: 7 days overdue.
Purpose: The invoice is now late. The tone shifts from friendly to direct. You are no longer nudging. You are following up.
Subject line: Following up — invoice [number] is now overdue
Email body:
Hi [first name],
I wanted to follow up on invoice [number] for £[amount], which was due on [date]. I have not yet received payment or heard back on this, so I wanted to check everything is okay.
Could you let me know when I can expect payment, or if there is anything holding it up? Happy to sort out any issues on my end.
I have attached the invoice again for reference.
Many Thanks,
[your name]
Why This Works
Why this works: It is direct without being aggressive. The phrase "I have not yet received payment or heard back" makes it clear you have been paying attention. Asking "is there anything holding it up?" opens the door for them to tell you about a problem (which is often the case), rather than just ignoring you.
Pick up the phone
If you have sent this email and heard nothing back within 48 hours, call them. Emails are easy to ignore. Phone calls are not. A two-minute conversation often resolves what three emails could not. This is one of the reasons human follow-up beats automated reminders every time.
Template 4: 14 days overdue.
Purpose: The tone shifts again. You are now referencing your previous attempts and setting a clear deadline.
Subject line: Invoice [number] — 14 days overdue
Email body:
Hi [first name],
I am writing regarding invoice [number] for £[amount], which was due on [date] and is now 14 days overdue.
I have followed up on this previously by email [and phone] but have not yet received payment or a response. I would appreciate it if you could confirm when this will be settled.
If there is a dispute or issue with the invoice, please let me know so we can resolve it. Otherwise, I would be grateful for payment within the next 7 days.
I have attached the invoice again for your records.
Kind regards,
[your name]
Why This Works
You are referencing your previous follow-ups, which establishes a paper trail and makes it clear this is not the first time you have asked. Setting a specific deadline ("within the next 7 days") gives them a concrete target instead of an open-ended request. And you are still offering to resolve any disputes, which keeps the door open for conversation.
Template 5: 30 days overdue.
Purpose: This is a formal notice. The tone is firm, professional, and references your legal rights. This is no longer a reminder. It is a notice.
Subject line: Formal notice — invoice [number] is 30 days overdue
Email Body:
Dear [first name],
I am writing to formally notify you that invoice [number] for £[amount] remains unpaid. The invoice was due on [date] and is now 30 days overdue.
I have followed up on this matter multiple times by email and phone. To date, I have not received payment or a satisfactory explanation for the delay.
Please be aware that under the Late Payment of Commercial Debts (Interest) Act 1998, I have the right to charge statutory interest at 8% above the Bank of England base rate on overdue invoices, plus a fixed compensation fee of £[40/70/100].
I would prefer to resolve this without the need for formal action. Please arrange payment in full within the next 7 days or contact me to discuss a resolution.
Kind regards,
[your name]
Why This Works
This is the first time you mention the Late Payment Act. That is intentional. Bringing it up too early (at 7 days overdue, say) can feel disproportionate and damage the relationship. At 30 days, it is proportionate and signals that you are serious. The phrase "I would prefer to resolve this without the need for formal action" is firm without being threatening.
Only reference the Late Payment Act if you are prepared to follow through
Empty threats damage your credibility and make future negotiations harder. If you mention statutory interest, be ready to charge it. If you reference formal action, have a plan for what comes next.
Template 6: The final notice (45+ days overdue).
Purpose: This is the last communication before you escalate to formal debt recovery, mediation, or legal action.
Subject line: Final notice — invoice [number]
Email Body:
Dear [first name],
This is a final notice regarding invoice [number] for £[amount], which has been outstanding since [original due date].
Despite multiple attempts to reach you by email and phone, this invoice remains unpaid with no explanation or proposed payment plan. The total amount now owed, including statutory interest and compensation under the Late Payment of Commercial Debts (Interest) Act 1998, is £[total].
If payment in full is not received within 14 days of this notice, I will have no choice but to escalate this matter. This may include instructing a debt recovery service, issuing a formal letter before action, or filing a claim through the county court.
I would very much prefer to resolve this directly. If you would like to discuss a payment plan or if there are circumstances I am not aware of, please contact me as soon as possible.
Kind regards,
[your name]
Why This Works
It is clear, factual, and leaves no ambiguity about what happens next. But it also ends with an olive branch: "if there are circumstances I am not aware of, please contact me." This matters because sometimes clients are in genuine financial difficulty and a conversation can lead to a payment plan that works for both sides.
What to do when emails stop working.
If you have followed this sequence and still not been paid, emails alone are not going to get the job done. Here is what comes next:
- Phone calls. If you have not already been calling alongside your emails, start now. A direct conversation cuts through the noise in a way that written communication cannot. Most overdue invoices are resolved with a single phone call.
- Letter before action. A formal letter (sent by recorded delivery) giving the debtor 14 days to pay before you begin legal proceedings. This is a legal requirement before you can file a court claim, and it often prompts payment on its own.
- Mediation. A neutral third party helps you and the debtor reach an agreement. Faster, cheaper, and less damaging to the relationship than court.
- Small claims court. For debts under £10,000 in England and Wales, you can file a claim online through the Money Claims Online service. Court fees range from £35 to £455 depending on the value.
- Outsourced credit control. If you are spending hours every week writing these emails and making these calls, an outsourced credit control service can take the entire process off your plate. Everything goes out under your brand. Your clients never know an external team is involved. And you get your time back.
For a full breakdown of each of these steps, read our guide: What to do when a client will not pay.
Qascade Tip
The best payment reminder email is the one you never have to send. If you set clear payment terms upfront, invoice promptly, and follow up consistently, most clients will pay on time without needing to be chased. The templates above are for when the system fails, not a substitute for having a system in the first place. Our credit control checklist covers everything you need to have in place.
Key takeaways
- Every payment reminder email needs four things: invoice number, amount owed, due date, and a way to pay.
- Start chasing before the invoice is due, not after. A pre-due reminder prevents problems.
- Match your tone to the timeline: friendly at first, then direct, then firm, then formal.
- Always attach the invoice again. It removes the "I never received it" excuse.
- Pick up the phone at 7 days overdue. Emails are easy to ignore. Calls are not.
- Reference statutory interest at 30 days, not before. Proportionality matters.
- If emails are not working, escalate: phone calls, letter before action, mediation, or court.
- The best system is one where you rarely need these templates at all. Good credit control prevents most late payments before they start.