A commercial invoice describing the contents is necessary for both importer and exporter. In addition, it shows the payment terms and delivery terms and addresses of the shipper and seller. Exporters use the invoice to prove ownership and secure payment. The description of goods must exactly match the letter of credit or other documents required for payment. Some government agencies use this invoice to assess customs duties.
Some countries require a consular invoice which can be obtained from the country's consulate.
Export Packing List. The export packing list itemizes the contents of each individual package and indicates the package type, i.e. box, crate, drum, or carton. The package markings should be shown along with the shipper's and buyer's references. Certificate of Origin. Many foreign governments require a signed statement certifying the goods' country of origin.