How to Recover Unpaid Invoices in the UK
- Trusted Debt Recovery UK
- Apr 20
- 2 min read
Updated: Apr 21

Late payments are one of the biggest cash flow problems facing UK businesses. If a customer fails to pay an invoice on time, it is important to act quickly before the debt becomes harder to recover.
The first step is to send a polite payment reminder. Many overdue invoices are caused by admin delays, missing paperwork, or simple oversight. A reminder email or phone call is often enough to secure payment.
If the invoice remains unpaid, you should send a stronger reminder along with a clear payment deadline. You may also be entitled to charge interest and late payment compensation under the Late Payment of Commercial Debts Act. Many businesses do not realise they can legally add fees to overdue invoices.
If payment is still not made, the next step is often a formal Letter Before Action. This warns the debtor that failure to pay may result in debt collection or legal proceedings.
Professional debt recovery services can help recover unpaid invoices while protecting your customer relationships.
Acting early gives you the best chance of recovering your money in full.
If your customers continue to ignore reminders and payment requests, our unpaid invoice recovery service can help you recover overdue invoices, late payments, and outstanding business debts quickly and professionally.
Frequently Asked Questions (How to recover unpaid invoices)
How long do I have to recover an unpaid invoice in the UK? In most cases, you have up to six years to recover an unpaid invoice in the UK.
Can I charge interest on overdue invoices? Yes. Businesses can often charge statutory interest and late payment compensation on overdue commercial invoices.
When should I use a debt collection agency for unpaid invoices? If an invoice is more than 30 days overdue and the customer is ignoring reminders, it may be time to use a professional debt recovery service.
What happens if a customer still refuses to pay? If payment is still not made, you may need to issue a Letter Before Action or take legal action through the courts.
Need Help Recovering an Unpaid Debt?
If you need help dealing with unpaid invoices and overdue accounts, our team can help you recover what you are owed quickly, ethically and professionally.



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