An overdue invoice email template for a clear first reminder
Give your client the invoice reference, agreed due date, balance, and a question they can answer without searching the whole project history.
Check the account before the reminder
Confirm the invoice was sent to the correct contact, the agreed due date has passed, and a payment has not arrived through another channel. Check whether the client asked for a purchase order reference or another detail you have not yet supplied.
This is an administrative check, not an assumption that the delay is your fault. It helps your first message address a solvable problem. If part of the invoice has been paid, show the remaining balance rather than asking for the original total again.
Use a subject line that helps the recipient find it
A subject such as ‘Payment reminder: invoice [NUMBER], due [DATE]’ tells the recipient what the email concerns. Include the project name if that is how the client tracks the work. Avoid a vague subject such as ‘Following up again’ that requires someone to search previous messages.
Send it to the billing contact you have verified. If your project contact handles approval but not payment, ask who should receive the invoice rather than copying a large group without knowing their role.
A first reminder you can adapt
Hello [NAME],
I am following up on invoice [NUMBER] for [PROJECT], which was due on [DATE]. My records show a remaining balance of [AMOUNT]. I have attached the invoice for reference.
Please confirm when payment is scheduled, or let me know if you need any information from me to process it. If payment has already been sent, please share the payment date and reference so I can match it to my records.
Thank you, [YOUR NAME]
Check the attachment and replace every placeholder. If you use a payment link, use your usual verified payment channel and make sure the link belongs to that account.
Ask for one useful answer
An expected payment date is more actionable than an apology or a general promise to look into it. If the client says approval is pending, ask what is needed for approval and who is handling it. If they dispute part of the work, ask them to identify the specific item.
Do not add late fees or interest to the reminder unless you have checked the agreement and applicable rules. A first reminder should accurately describe the balance you are requesting, not introduce an unverified charge to make the message sound stronger.
Record the response and choose the next step
Keep the reply with the invoice and update your record if the client gives a payment date. Follow up against that date rather than sending the same generic message repeatedly. If the promised date passes, mention it accurately in your next message.
For a more formal account of the work and correspondence, see writing a freelance payment request letter. You can also use our freelancer payment letter tool. The wording helps organize a request; it does not establish a legal entitlement or guarantee payment.
General information and writing guidance, not legal or financial advice. Check the instructions and rules for your situation.