Mail an invoice

Send an invoice to a customer with US Mail. Mailing an invoice is useful when you want to send an invoice to a customer that is not in the BILL network.

The Customer billing address is required for mailing an invoice.

  • billAddressCountry must be US
  • billAddressCity
  • billAddressState
  • billAddressZip

BILL prints the invoice and mails it to the customer. The expected delivery date is 3-5 business days. Keep your organization address current in case the mail cannot be delivered to the customer.


The user that mails an invoice with /MailInvoice.json must have the role permissions for managing invoices. In addition, free accounts receivables account users cannot use this endpoint.

Click Try It! to start a request and see the response here!