Invoice email templates: first invoice, deposit and payment reminder
Copy three complete invoice emails, check the attachment and payment balance, and adapt a worked example without sending the wrong amount.
An invoice email needs to answer three questions: which work is being billed, how much is due, and when the customer should pay. Use the messages below as editable examples, then check every reference against your actual invoice. The businesses, amounts and dates are illustrative.
First invoice: send a complete payment request
This example is a fixed-price website update for USD 750, with no tax or shipping included in the exercise. The invoice is issued September 21, 2026 and the agreed due date is October 5. Replace the recipient, scope, dates and payment instructions before sending.
Subject: Invoice INV-2026-075 — website update — due October 5 Hi Alex, Attached is invoice INV-2026-075 for the website update we agreed. The total due is USD 750.00, payable by October 5, 2026. Please use the payment instructions on the invoice and include INV-2026-075 as your payment reference. The invoice covers the homepage update and contact-form setup. Let me know if your accounts team needs a purchase-order reference or a different billing contact. Thank you, [Your name] [Your business]
Deposit request: distinguish the deposit from the project total
For a USD 1,200 project with an agreed 25% advance payment, the requested deposit is USD 300. The remaining USD 900 is not due at the deposit deadline unless that is actually your agreement. A deposit requested is not money received: leave Payment already received at zero until you confirm receipt.
Subject: Deposit for project W-120 — USD 300.00 Hi Alex, As agreed, the project total is USD 1,200.00. Please find the attached deposit document requesting USD 300.00 (25%) by September 25, 2026. The remaining USD 900.00 will be due at the completion milestone described in our agreement. Please include W-120 in your payment reference. Please reply if you need any billing details corrected before making the deposit. Thank you, [Your name]
Payment reminder: request the balance, not the original total
Our existing order PO-1042 has a USD 86.40 invoice and a confirmed USD 30 deposit. The outstanding amount is USD 56.40. Check the payment record immediately before sending a reminder; this text is not a notice of penalties or a change to agreed terms.
Subject: Payment reminder — INV-2026-1042 — USD 56.40 outstanding Hi Alex, I am following up on invoice INV-2026-1042, which was due on September 21, 2026. The invoice total is USD 86.40. We have received USD 30.00, leaving USD 56.40 outstanding. I have attached the invoice showing the deposit and remaining balance. Could you confirm the expected payment date? If the balance has already been sent, please share the payment date and reference so I can match it to our records. Thank you, [Your name]
Check the email and PDF together
Open the actual PDF attachment, not just the editor preview. A correct email attached to the wrong customer’s invoice is still a billing error. Check the filename, recipient, invoice number, currency, due date and outstanding balance as one final task.
Do not email these illustrative messages unchanged. Replace bracketed placeholders, verify the intended billing address, and use your established channel to confirm any change to payment instructions.
| Check | What should match |
|---|---|
| Subject and PDF | Same invoice or project reference |
| Requested payment | Current balance or agreed deposit, not both added together |
| Attachment | Correct customer, readable pages and final version |
| Recipient | Authorized billing contact; no unrelated customer copied |
| Payment instructions | Your verified instructions, not a placeholder |
This guide provides general educational information and is not legal, accounting, tax or financial advice. Requirements vary by country, industry and transaction. See how Docuivo tests its tools and calculations.