Crest guide

Payment reminder email for an overdue invoice

Updated 12 September 2026 · Crest Invoice Team

A payment reminder should identify the invoice and state the amount, due date, and next step.

Before you send a reminder

The UK Small Business Commissioner advises checking the original invoice and contract, confirming the payment terms and due date, and making sure there are no invoice errors before escalating an unpaid invoice. Freelancers can use the same steps.

  1. Open the invoice and confirm the invoice number, due date, amount, and payment instructions.
  2. Check whether the client asked for a purchase order, supplier portal upload, or different billing contact.
  3. Keep the first reminder friendly. Many late invoices are process misses, not refusals.
  4. Record when you sent each reminder.

Use these examples manually for PDF-only invoices. For new live invoices sent through Crest, automatic follow-up uses invoice activity, a due-today email, and an owner alert three days after the due date if payment is still unresolved.

Reminder email examples

Subject: Invoice INV-1027 due tomorrow

Hi [client name], quick reminder that invoice INV-1027 for [work] is due tomorrow. The total is [amount]. Payment details are included on the invoice, and I am happy to resend anything you need.

Thanks,
[your name]

Subject: Invoice INV-1027 due today

Hi [client name], invoice INV-1027 is due today. Could you let me know when payment is scheduled? I have included the payment details below.

Thanks,
[your name]

Subject: Payment reminder for invoice INV-1027

Hi [client name], I am checking in on invoice INV-1027, which was due on [date]. The outstanding amount is [amount]. Please let me know if anything is missing or if the invoice needs to be resent to another contact.

Thanks,
[your name]

Subject: Second reminder: invoice INV-1027

Hi [client name], I am following up again on invoice INV-1027 for [amount]. Could you confirm the payment date or the right person to contact about this invoice?

Thanks,
[your name]

Follow-up workflow

  1. Send the invoice with clear payment instructions and a due date.
  2. If payment is near due, send a short reminder with the invoice number and amount.
  3. If payment is overdue, ask whether anything is missing and offer to resend the invoice.
  4. If there is still no answer, contact the client directly and document the next agreed step.
  5. When money lands, close the loop yourself. In Crest language, Crest it.

Payment reminder FAQ

Does Crest send automatic payment reminders today?

Yes, for new live invoices sent through Crest. Crest uses invoice activity to decide when to send a reminder, sends a due-today email, and alerts you three days after the due date if payment is still unresolved.

What should I include in a payment reminder email?

Include the invoice number, amount, due date, payment instructions, and a clear next step.

Sources used