Your PayPal account can email free invoices directly from your PayPal account to anyone with a valid email address. This is a great way to send invoices that look professional and can help avoid payments going to the wrong PayPal account.
To start off, go to your PayPal account. Click on Tools and then in the dropdown select Invoicing. Finally just click the Create button and you will be brought to PayPal's invoice set up page.
Author: Jesse Lange