01Due today
Keep the first message factual. The goal is to confirm receipt and surface processing problems.
Subject: Quick check on invoice [number]
Hi [first name],
Just checking that invoice [number] for [amount], due today, reached the right person.
Could you confirm it is scheduled for payment? Thanks!
023 days overdue
Ask for a specific payment date instead of sending a vague “just following up” message.
Subject: Payment date for invoice [number]
Hi [first name],
Invoice [number] for [amount] was due on [date]. Could you reply with the scheduled payment date, or let me know if there is an issue I should resolve?
Thank you.
037 days overdue
Repeat the essential facts and make the requested next action unmistakable.
Subject: Payment date needed — invoice [number]
Hi [first name],
Invoice [number] for [amount] is now 7 days overdue. Please reply today with the payment date, or the details of any processing issue.
Here is the payment link again: [link]
0414+ days overdue
Do not invent penalties, deadlines, or legal consequences. Use only terms you actually agreed and are entitled to enforce.
Subject: Action required: overdue invoice [number]
Hi [first name],
Invoice [number] for [amount] is now [days] days overdue. Please arrange payment or confirm a firm payment date within 2 business days. If there is a dispute or processing issue, reply with the details so we can resolve it promptly.