The courier service invoice is an expense sheet detailing specific delivery charges made by a courier service. After delivering the mail/package/message, the courier service will provide the invoice to the individual or company that placed the order. The invoice should include a short description of all items that were delivered and the cost of the delivery fees. There should also be information on both parties (the courier service and the receiving party) such as address, contact information, etc. There will be a total delivery charge (and possibly other taxes and associated fees) included at the bottom of the invoice and a date upon which payment must be made by the receiving party.