Before the due date
Send a brief confirmation: invoice number, amount, due date, and payment method. Example opener: Just confirming invoice INV-1042 for $2,400 is due on Friday — let me know if you need anything from our side.
- Pre-due: confirm receipt
- Post-due: ask about blockers
- Keep copy paste-ready
Seven days overdue
Stay polite and specific. Mention the invoice number, original due date, and outstanding balance. Ask whether the invoice reached the right approver or if a PO is still pending.
- Under 120 words when possible
- One invoice per thread
- Attach PDF only if requested
Thirty days overdue
Use a firmer tone, summarize prior reminders, and state next steps such as pausing work or applying agreed late fees. Offer a call if the amount is large or the relationship is strategic.
- Confirm payment date
- Offer updated PO or resend
- Suggest call only if stuck
Use a four-part message structure
A useful follow-up can fit in four parts: a neutral reason for writing, the exact invoice facts, one question about blockers, and one requested next step. For example: “I am following up on INV-1042 for $2,400, due June 14.
Could you confirm whether accounts payable has everything needed? ” Attach or link the invoice again, but keep sensitive bank details in the approved document rather than rewriting them in a long email thread.
Record replies and promised dates
When a client says payment will arrive Friday, add that date to your tracker and acknowledge it in writing. If Friday passes, the next email can reference the promise instead of restarting the conversation.
Keep bounced messages, out-of-office replies, PO requests, and corrected invoices with the same record. The goal is a factual timeline that another person can understand.
Avoid sending multiple contacts conflicting totals or different deadlines; choose one owner for the follow-up and keep the current balance consistent.
Try it with our free tools
Put what you learned into practice — no signup required. Drafts stay in your browser; optional server-side PDF generation only processes a document to create the file you request.
Requirements vary by country and business type. This guide explains common billing workflows and is not tax, legal, or accounting advice.