Meaning
A formal recalculation and demand for additional customs payments following an audit or a voluntary disclosure of errors. The supplemental duty assessment occurs when the China Customs authorities determine that the original value, classification or country of origin for imported goods was incorrect. This process ensures that the state receives the full amount of revenue required under the prevailing tariff schedule.
Triggering Event
Discrepancies found during a post-clearance audit are the most common reason for this administrative action. A supplemental duty assessment is issued if the audit reveals that royalties, insurance costs or design fees were omitted from the declared transaction value. Companies that discover their own errors can also trigger this process through a voluntary disclosure, which often results in a waiver of penalties.
Procedural Timeline
Importers generally have a short window, often fifteen days, to pay the amount specified in the notice once it is issued. The procedural timeline of the assessment allows for no extensions unless a formal appeal is initiated within the statutory period.
Dispute Resolution
Challenging the findings of the customs bureau requires a formal administrative appeal to a higher level of the customs hierarchy. During this period, the supplemental duty assessment may still need to be paid or a guarantee provided to prevent further enforcement actions. The final decision of the appeal can be further contested in the People’s Courts if the importer remains dissatisfied with the outcome.
