Overdue Invoice Email Templates: How to Chase Politely
Copy four UK reminder emails and use the right tone as an invoice moves from nearly due to seriously overdue.
Late payments are stressful. You need the money to cover bills and payroll, but chasing clients can feel pushy or unprofessional. A polite, structured sequence gives the client a clear next step and gives you a record if you later need to escalate.
Quick Answer
To chase an invoice politely, send a short reminder that includes the invoice number, amount, due date, and a clear request for payment. Keep the tone calm, assume good intent, and make it easy for the client to reply.
If there is still no response, move from a friendly reminder to a firm follow-up, then a final chasing letter, and finally a Letter Before Action.
Copyable four-email sequence
Overdue invoice email template pack
Adapt the cadence to your agreed payment terms and keep a copy of every message. Replace every bracketed field before sending.
Before or on the due date
Friendly payment reminder
Before or on the due date
Friendly payment reminder
Subject: Friendly reminder: invoice [number] is due [date]
Hi [client name], Just a quick reminder that invoice [number] for £[amount] is due on [date]. I have attached another copy for convenience. If payment has already been arranged, please disregard this message. Otherwise, please let me know if you need anything from me to process it. Many thanks, [your name]
A few working days overdue
First overdue follow-up
A few working days overdue
First overdue follow-up
Subject: Invoice [number] is now overdue
Hi [client name], My records show that invoice [number] for £[amount], due on [date], is still outstanding. Could you confirm when payment will be made? If there is a query with the invoice, please tell me so I can resolve it promptly. Best regards, [your name]
After the first follow-up
Firm payment request
After the first follow-up
Firm payment request
Subject: Action required: overdue invoice [number]
Hi [client name], Invoice [number] for £[amount] remains unpaid despite my earlier reminder. It was due on [date]. Please arrange payment by [new payment date], or contact me today if you need to discuss a genuine dispute or payment plan. Regards, [your name]
Before formal recovery action
Final chasing email
Before formal recovery action
Final chasing email
Subject: Final reminder before escalation: invoice [number]
Hi [client name], This is my final reminder that invoice [number] for £[amount], due on [date], remains unpaid. Unless payment or a substantive response is received by [final date], I will consider the next appropriate recovery steps. Please contact me immediately if the amount is disputed or you need to propose a payment plan. Regards, [your name] Note: this email is not a Letter Before Action. Use the applicable pre-action process before starting a court claim.
Which Overdue Invoice Email Should I Use?
Before or on the due date
Use a brief check-in that confirms the invoice number, amount and due date.
A few days overdue
Assume good intent, attach or link the invoice again and ask when payment will be made.
Still unpaid
Use a firmer subject line, state the days overdue and request a specific payment date.
Before formal recovery
Send a final reminder with an honest deadline. Use a separate Letter Before Action if you decide to start formal recovery.
Why the Right Tone Matters
Chasing too softly can leave you unpaid for months. Chasing too hard can damage relationships and lose future work. The sweet spot is firm but friendly - assume the client meant to pay, give them an easy way to fix it, and escalate only when necessary.
Five Steps to Chase Politely
1. Start with a Gentle Reminder
As soon as an invoice becomes overdue, send a brief, friendly email. Keep the tone light - assume it slipped their mind rather than suggesting they're avoiding you.
Subject: Friendly reminder – Invoice #[Invoice Number]
Hi [Client Name],
I hope you're well. Just a quick note to remind you that invoice #[number] for £[amount] was due on [date]. If it's already been paid, please disregard this. Otherwise, we'd appreciate payment at your earliest convenience.
Many thanks,
[Your name]
2. Use Clear but Professional Language
If the first reminder gets no response, follow up within a few days with something firmer - but still professional. No guilt-tripping or aggression.
Subject: Overdue invoice – action required
Hi [Client Name],
Our records show that invoice #[number] for £[amount], due on [date], has not yet been paid. Could you confirm when we can expect payment? If there's an issue with the invoice, please let us know and we'll sort it quickly.
Best regards,
[Your name]
3. Pick Up the Phone
Sometimes a short phone call works better than another email. People respond to a human voice. Keep it polite:
- • "I just wanted to check if everything's okay with the invoice we sent over."
- • "Could you let me know when payment is likely to go through?"
- • "Is there anything you need from me to help process this?"
You're not accusing - you're offering to help. That often gets a quicker response.
4. Offer Flexible Options
Cash flow problems can affect anyone. If you sense the client is struggling, offering flexibility can save the relationship and still get you paid:
- • "If splitting the payment would help, we can arrange that."
- • "Would a payment plan make it easier for you to settle this?"
A partial payment now is usually better than chasing a full amount for months.
5. Escalate Politely If Needed
If reminders and calls don't work, send a final notice that outlines consequences - but keep the tone professional. You're not threatening; you're stating what will happen.
Subject: Final reminder – Invoice #[number]
Hi [Client Name],
This is a final reminder that invoice #[number] for £[amount], originally due on [date], remains unpaid. If payment is not received within the next 7 days, we may need to suspend services or pass the account to our collections team.
Please arrange payment as soon as possible to avoid further action. If you're experiencing difficulties, please reach out so we can discuss options.
Thank you,
[Your name]
If you need a more formal sequence, use our free chasing letter templates. If the invoice is already overdue, calculate any statutory interest with the late payment calculator before you escalate.
When to Bring in Expert Support
Chasing unpaid invoices eats time. If polite reminders don't work, it may be worth outsourcing. Debt collection agencies or solicitors can take over - often for a percentage of what they recover. For amounts under £10,000, the small claims track may be relevant in England and Wales. Limitation periods and procedures vary, so check the rules that apply to the debt (including legal limits and your rights) and act promptly.
The key is not letting it drag on forever. Set a cutoff - e.g. 60 days - and escalate if needed.
Get Back to Work - We'll Chase for You
Experi can schedule professional payment reminders from the invoice record. You choose the timing and wording, review the setup, and keep the reminder history beside the balance and due date.
- ✨ Automated reminders – before and after due dates
- ✨ Professional templates – pre-written, polite follow-ups
- ✨ Payment tracking – see what's overdue at a glance
- ✨ Less chasing, more working – focus on billable work instead
Stop Chasing Manually
Set up consistent payment reminders and keep the follow-up history with each invoice.
Start Free – No Credit Card RequiredFrequently Asked Questions
Which overdue invoice email templates should I use in the UK?
Use a brief reminder just before or on the due date, a friendly overdue email a few days later, a firmer message with a specific payment date if it remains unpaid, and a final reminder before formal action. Keep each message and use a separate Letter Before Action when you move into formal recovery.
How do you politely chase an invoice?
Keep the message short, include the invoice number and amount, ask when payment will be made, and offer to fix any problem with the invoice. Do not start with accusations.
How long should I wait before chasing an invoice?
Send a friendly reminder as soon as the invoice becomes overdue, or a few days before the due date if you want to prevent late payment. Follow up again if there is no response after a few working days.
What comes after a final chasing email?
If a final chasing email is ignored, the next formal step is usually a Letter Before Action. After that, you may be able to use Money Claims Online for a fixed unpaid invoice debt.
Summary
Chasing invoices politely comes down to: assume good intent, be clear about what you need, offer help where you can, and escalate only when necessary. A consistent sequence reduces missed follow-ups without making the first message sound aggressive.
Tools like Experi automate the reminders so you can focus on your work instead of chasing payments.
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