How to Send an Invoice via Email (With Templates)

Your invoice email is the first thing clients see. A clear, professional email ensures your invoice gets opened promptly, not buried in the inbox. Good invoice emails include a clear subject line, brief context about the work, the invoice as an attachment or direct link, and a friendly call to action.

Use a clear subject line: 'Invoice #INV-042 from [Your Name] — Due March 15.' Keep the email body to 3-4 sentences. Attach the PDF invoice (or include a payment link). Reference the project or work completed. Thank the client. Include your payment terms and accepted methods.

Subject: Invoice #[Number] from [Your Name] — Due [Date] Hi [Client Name], Please find attached invoice #[Number] for [brief description of work]. The total amount due is [Amount], payable by [Due Date]. Accepted payment methods: [bank transfer / PayPal / etc.] Thank you for your business! Best regards, [Your Name]

Subject: Invoice #[Number] — [Project Name] Hi [Client Name], Thank you for choosing to work with me on [Project Name]. It was a pleasure! Attached is my invoice for the completed work. The total is [Amount], due by [Date]. I've included my payment details in the invoice. Please let me know if you have any questions about the invoice or the deliverables. Best regards, [Your Name]

Subject: Friendly Reminder: Invoice #[Number] — Due [Date] Hi [Client Name], I hope you're doing well! I wanted to follow up on invoice #[Number] for [Amount], which was due on [Date]. I've reattached the invoice for your reference. If payment has already been sent, please disregard this note. Otherwise, I'd appreciate payment at your earliest convenience. Thanks! [Your Name]

Subject: Overdue: Invoice #[Number] — [X] Days Past Due Hi [Client Name], I'm writing regarding invoice #[Number] for [Amount], which is now [X] days overdue. The original due date was [Date]. I understand things get busy, but I'd greatly appreciate payment being processed this week. Attached is the invoice for your records. Please let me know if there are any issues or if you need to discuss payment arrangements. Best regards, [Your Name]

Subject: Monthly Invoice #[Number] — [Month Year] Hi [Client Name], Attached is your invoice for [Month Year] services. The total is [Amount], covering [brief description: e.g., 'monthly website maintenance and support']. Payment is due by [Date]. Same payment details as always. Thank you for your continued partnership! Best, [Your Name]

Invo lets you email invoices directly to clients from the app — no need to download, attach, and send separately. Simply create your invoice, enter the client's email, and click send. The professional PDF is delivered instantly to their inbox.