Postal customs clearance is a postal tax. Postal tax is the abbreviation of import tax on luggage and postal articles, which is the import tax levied by the customs on luggage and personal postal articles of inbound passengers. Because it includes the value-added tax and consumption tax in the import link, it is also the general name of import duties and import industrial and commercial taxes levied on personal non-trade imported goods.

Since 13 cross-border e-commerce pilot, the main customs clearance mode of cross-border e-commerce is postal customs clearance. Postal customs clearance is supported by national policies, so it is a stable and fast customs clearance mode. Simple customs declaration procedures, fast customs clearance and low taxes and fees are its main advantages. Taxes under 50 are exempted.