How to prepare Customs Documents
An invoice for customs purposes must always be prepared and accompany any shipments that are customs-dutiable. If it is a commercial shipment with a commercial value, you will need a commercial invoice. If it is a non-commercial shipment (non-business purpose), such as a personal gift, sample or faulty part, you will need a proforma or non-business use invoice.
Commercial Invoice
A commercial invoice is required when sending dutiable goods. Using the following as a reference please complete two copies entirely in the English language (the number of copies required may vary depending on the destination).A commercial invoice is required under customs law as a document necessary for sending shipments abroad and is an important document requested at customs in the customs procedure. An accurate commercial invoice provides the basic information is also used by customs authorities of the importing country in correctly assessing customs duties and import application.