Start an overdue-invoice conversation by checking the facts, resending a clear payment route and asking for a specific date. A reminder should help the customer act and reveal any genuine problem. You do not need aggressive language or invented legal threats to make the request clear.
The useful bits
- Check the invoice, due date and payment records before chasing.
- Ask for a payment date or a specific explanation of the problem.
- Keep consumer debts and business-to-business legal rules separate.
Check that the invoice really needs a reminder
Confirm the correct customer received the invoice, the amount matches the agreement and the due date has passed. Check recent payments and ask whether someone else in the customer’s business handles approval. A missing purchase-order reference or wrong email address needs a different response from a refusal to pay.
If the customer has raised a problem with the work or amount, record it separately and respond to the substance. Repeating a payment request without addressing a known dispute will not clarify what happens next.
Send a short first reminder
Use a recognisable subject line with the invoice reference. Include the amount still due, the original due date and a copy or secure link to the invoice. Ask for confirmation rather than assuming the customer has deliberately ignored you.
Template: first reminder
Subject: Invoice [reference] — payment reminder. Hi [name], I’m following up invoice [reference] for [work], with [amount] outstanding and a due date of [date]. I’ve attached the invoice again. Please confirm when payment will be made, or let me know if anything needs clarifying. If you have already paid, the payment date and reference will help me match it. Thanks, [name].
Agree a specific next step
If the first message gets no response, follow up through the usual business contact channel. Ask whether the invoice has been approved and who is responsible for releasing payment. Record a promised date and the person who gave it.
If a customer proposes instalments, consider the request against your circumstances and get any arrangement recorded clearly. Do not describe an arrangement as agreed until both sides have accepted it. Check the actual balance before every follow-up.
Template: follow-up after a missed promise
Hi [name], we discussed payment of invoice [reference] by [agreed date]. I have not yet matched the payment, and [amount] remains outstanding in my records. Please confirm the payment status and the date we should now expect it. If there is a specific issue with the invoice, please set that out so we can address it.
Use the right help if it stays unpaid
UK rules on late commercial payments concern business-to-business debts. Do not automatically apply those interest or compensation rules to a household customer. Check the contract, the type of customer and the current official guidance before adding charges or starting formal recovery.
The Office of the Small Business Commissioner provides information and support on late payment and explains which disputes it can help with. If an invoice remains disputed or you are considering legal action, get advice relevant to that situation rather than copying a threatening template.
Use what you learn on the next job
Once the invoice is resolved, note the cause of the delay. If it was an approval problem, ask for the right reference before the next job. If the payment method was unclear, improve the invoice instructions.
Keep a simple record of the date, contact, response and next action. That gives you a useful history without turning every reminder into a fresh reconstruction of the job.
Sources and further reading
Sources checked 28 September 2026. Follow the official guidance for the current rules and how they apply to your business.
