Free Chase Letter Pack: Polite and Firm Reminders
Before a formal letter before action, we suggest sending two reminders: a polite first reminder on the day after the invoice's due date, and a firmer second reminder around 7 days overdue. Both templates are below, ready to copy. If neither works and the invoice is still unpaid around 30 days overdue, we suggest moving to our letter before action template, the next and final step before court.
This chase letter pack for an unpaid UK invoice has two stages before a formal letter before action: a polite first reminder sent the day after the due date, and a firmer second reminder sent around 7 days overdue that references the first reminder and gives a short deadline. Neither stage is a legal threat; that is kept for the letter before action, which we suggest at around 30 days overdue, which states a firm deadline and the intention to issue court proceedings. More detail and scope
This page covers:
UK payment reminder templates for unpaid invoices: a polite first reminder and a firmer second reminder, escalation timing before a letter before action, and handling invoice disputes.
Not covered here:
the formal letter before action itself and the Pre-Action Protocol for Debt Claims (see /tools/letter-before-action-template/), the original invoice template (see /tools/invoice-template/), and the wider unpaid invoices escalation ladder (see /unpaid-invoices/)
1. Polite first reminder (day after due date)
Send this as soon as an invoice becomes overdue, before assuming anything is wrong. Most late payments are oversight, not refusal.
PAYMENT REMINDER [Your company name] [Your address] [Email] [Phone] [Date] To: [Debtor name / company name] Dear [name], RE: Invoice [invoice number], amount due GBP [0.00] This is a friendly reminder that invoice [number], dated [invoice date] for GBP [0.00], became due for payment on [due date]. If you have already sent payment, please disregard this message, and thank you. If not, please arrange payment at your earliest convenience. Please pay to: [Bank name] Sort code: [00-00-00] Account: [00000000] Reference: [invoice number] If there is a query holding up payment, or the invoice has gone astray, please let us know and we will sort it out straight away. Thank you for your business. Kind regards, [Name] [Position], [Company name]
2. Firm second reminder (around 7 days overdue)
Send this if the first reminder gets no payment or response. It references the earlier reminder, sets a short deadline, and flags formal next steps without yet being one.
SECOND PAYMENT REMINDER [Your company name] [Your address] [Email] [Phone] [Date] To: [Debtor name / company name] Dear [name], RE: Overdue invoice [invoice number], amount due GBP [0.00] Our records show invoice [number], dated [invoice date] for GBP [0.00], is now [7] days overdue. We sent a reminder on [date of first reminder] and have not yet received payment or a response. Please arrange payment within the next [7] days, by [deadline date]. Please pay to: [Bank name] Sort code: [00-00-00] Account: [00000000] Reference: [invoice number] If there is a reason payment has not been made, please contact us before the deadline so we can discuss it. If we do not hear from you or receive payment, we will need to consider formal next steps, including a letter before action. We would rather resolve this directly and look forward to hearing from you. Kind regards, [Name] [Position], [Company name]
When to stop reminding and escalate
If the firm reminder's deadline passes with no payment, no response, and no genuine dispute, the next step is a formal letter before action, which we suggest once the invoice reaches around 30 days overdue. Sending a third or fourth soft reminder past that point usually just signals your deadlines are not real. Save the explicit threat of court proceedings and statutory interest for the letter before action itself.
Waiting on the cash instead of the chase
Chasing recovers one invoice, slowly, on the debtor's timetable. Invoice finance can release part of the cash tied up in your unpaid invoices early, with the rest (less fees) paid when the customer pays. How much and how fast depends on the provider. With factoring, the provider also chases your customers for you; with invoice discounting, you still do the chasing yourself.
Companion templates
- Letter before action template: the formal final step before court, once reminders have failed.
- Invoice template: get the original invoice right so there is nothing to dispute later.
- Chasing scripts: email and phone scripts for each stage, from the first reminder to the final notice.
Founder & Managing Director, Muswell Rose, founder and PSC of Best Business Loans Ltd
Adam was managing director of Penny, a UK invoice finance business, from July 2020 to November 2023. His career runs through insurance, mortgages, commercial finance and fintech lending. He writes the Market Invoice library. Career record.
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