LettersBusiness

Unpaid Invoice Letter of Demand

Recover overdue business invoices.

Overview

An Unpaid Invoice Letter of Demand is a formal written request for payment of an overdue business invoice. It is typically used after reminders have been sent and the original payment due date has passed.

It sets out the amount owing, the invoice details and a clear deadline for payment, and explains what may happen if the debt is not paid. It is suitable for unpaid invoices between companies, sole traders or individuals.

Use this template when an invoice is overdue and previous reminders have not resulted in payment.

Before You Begin

Gather the following information before adapting this template:

  • 1Your business name and contact details
  • 2The debtor's full name and address
  • 3The invoice number and amount outstanding
  • 4The original payment due date
  • 5The payment deadline you want to set (commonly 14 days)

Example Template

This is an example only. Replace each highlighted placeholder with your own details, then copy the template into your preferred document editor.

[Your Name]

[Business Name]

[Address]

[Phone] · [Email]

Date: [Date]

[Debtor Name]

[Address]

RE: Unpaid Invoice — [Invoice Number]

Dear [Debtor Name],

I am writing to you regarding the outstanding invoice set out below. Despite previous reminders, payment of [Amount Owing] in respect of invoice number [Invoice Number], which was due for payment on [Due Date], remains outstanding.

I kindly request that you arrange full payment of [Amount Owing] within 14 days of the date of this letter.

If payment is not received by that date, I may refer this matter for professional debt recovery or, if necessary, commence legal proceedings to recover the amount owed, together with any applicable costs and interest.

If the amount has already been paid, please disregard this letter and accept my thanks. Should you wish to discuss this matter, please contact me using the details above.

Yours sincerely,

[Your Name]

[Your Title]

Disclaimer

Important: This template is provided as a general educational example only. It is intended to demonstrate typical wording and document structure. It must be reviewed and adapted to suit your own circumstances before use. It does not constitute legal advice and should not be relied upon as legal advice.