How to Send an Invoice by Email

Attach the invoice as a PDF, write a short professional email body (3-5 sentences), and use a subject line that includes the invoice number and amount. Send to the right person — usually accounts payable for larger companies, the project manager for smaller ones. This guide includes 3 ready-to-use email templates, subject line formulas, follow-up rhythm, and tips for speeding up payment by including a payment link.

Frequently Asked Questions

Should I send invoices as PDF or in the email body?

Always PDF, attached. PDFs look professional, can't be edited by the recipient, and survive forwarding intact.

Who should I send the invoice to at a large company?

Send to accounts payable (often [email protected] or [email protected]), and CC the project manager who hired you.

What's the best subject line for an invoice email?

Include the invoice number, your business name, and either the amount or due date. Examples: 'Invoice #INV-0142 from [Business] — $3,667.30 due May 15'.

Should I attach a payment link in the email?

Yes — if you accept Stripe / PayPal / Square. Including a clickable 'Pay this invoice' link removes friction and accelerates payment by days.

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