Use these templates when the relationship is healthy and you want a prompt, polite reminder before the balance turns into a collections problem.
Replace the placeholders, adjust the amount or date, and send only after the policy and invoice details are correct.
Template 1
Subject: Reminder for invoice {{invoice_number}}
Hi {{client_name}},
A quick note that invoice {{invoice_number}} for {{invoice_amount}} is due on {{due_date}}.
I have attached the invoice again here in case it is helpful. Please let me know if anything is needed from my side to help your team process payment.
Best,
{{your_name}}
Template 2
Subject: Invoice {{invoice_number}} is due today
Hi {{client_name}},
Just sending a quick reminder that invoice {{invoice_number}} is due today.
If payment is already in progress, please disregard this note. If anything is missing on my side, I am happy to send it over.
Thank you,
{{your_name}}
Template 3
Subject: Quick follow-up on invoice {{invoice_number}}
Hi {{client_name}},
I wanted to follow up on invoice {{invoice_number}}, which was due on {{due_date}}.
If payment is already moving through your process, please feel free to ignore this note. If not, could you let me know the expected payment date?
Best,
{{your_name}}
Insight
Many invoices are paid late because the reminder arrives too late or the buyer does not have the invoice handy. A friendly email solves that without adding unnecessary tension.
Use this page when the client relationship is healthy and you mainly need a nudge, not an escalation.
FAQ
Use it before the due date, on the due date, or immediately after when you still expect a routine payment delay rather than a dispute.
Usually no. Keep the first message simple unless the fee has already been triggered and the wording is clearly supported by your agreement.
Related pages
Go straight to the next page that helps with the same billing issue.