Tariff Assessment
Government tax levies on cross-border merchandise shipments generate national revenue and protect domestic industrial sectors from foreign competition. Statutory charges termed import customs duties apply fixed or ad valorem rates based on harmonized tariff schedule codes assigned to incoming freight. Customs declarations require accurate reporting of product composition and invoice values prior to physical cargo release.
Brokerage filings specify applicable preference programs and trade agreement exemptions to establish the final payable rate. Port authorities hold shipment releases until duty payments clear authorized fiscal accounts. The scope covers all commercial goods arriving across sea and land borders, excluding temporary bond entries that exit the jurisdiction without entering domestic commerce.
Valuation Methodology
Customs appraisal rules establish transactional value using net ocean invoice pricing plus freight and insurance charges. Importers must include royalty fees, packing costs and assist value in the taxable base. Deductive valuation methods apply when transaction prices are missing or deemed unreliable by customs auditors.
Misstating entry values invites administrative penalties and cargo seizures.
Border Enforcement
Auditing programs target high-risk product categories through post-clearance reviews of commercial records. Inspectors compare entry filings against historical trade benchmarks and supplier invoices to detect systematic under-valuation. Importers who maintain accurate classification databases minimize post-entry audit adjustments and administrative delay.
Non-compliant importers face structural duty adjustments and mandatory security bonds.