Cross-Border Commerce Glossary

A tariff calculated as a percentage of the declared value of the goods, rather than a flat per-unit fee. Most import duties are ad valorem. For example, a 25% ad valorem duty on a $100 shipment results in a $25 duty charge. Because ad valorem duties scale with declared value, accurate customs valuation is especially important for high-value goods.

The average value of orders placed at checkout over a given period. In a cross-border context, AOV typically includes product price, international shipping, and — where DDP applies — duties and taxes. AOV is a key benchmark for evaluating regional performance, calibrating minimum free-shipping thresholds, and comparing merchant performance against network and industry averages.

A legal document issued by a carrier to acknowledge receipt of a shipment, serving simultaneously as a receipt, a contract of carriage, and a title document. Required for most international freight shipments. For ecommerce parcels, the equivalent document is typically the airway bill or tracking manifest.

Direct-to-consumer sales where the merchant and the end customer are located in different countries. Distinct from B2B cross-border, which involves wholesale or bulk commercial transactions between business entities.

Wholesale or commercial shipments across international borders, typically involving freight volumes, purchase orders, and more complex customs documentation requirements than B2C parcel shipments. Often subject to different tariff classifications, Incoterms, and IOR/EOR arrangements.

A formal declaration — sometimes required by destination customs authorities — confirming where goods were manufactured. Not to be confused with Country of Origin (the attribute); this is the physical document that proves it. Required for free trade agreement eligibility and in countries with strict origin-based tariff enforcement.

A document issued by the seller to the buyer listing the goods shipped, their declared value, country of origin, and other shipment details. Customs authorities use the commercial invoice to assess duties and taxes. Inaccurate or incomplete commercial invoices are a leading cause of customs holds, delays, and penalties.

The percentage of international site visitors or sessions that result in a completed purchase. Cross-border conversion rates are typically lower than domestic, due to unfamiliar shipping costs, unexpected duties and taxes at checkout, currency friction, and longer delivery times. Displaying landed costs upfront through DDP is one of the most effective levers for improving international conversion.

The country where a product was manufactured or last underwent “substantial transformation” — not where it was shipped from. COO determines which tariff rates apply and whether a product qualifies for preferential treatment under a free trade agreement. Correctly identifying and documenting COO is one of the most consequential compliance decisions a merchant makes.

A licensed professional or firm authorized to act on behalf of importers or exporters in customs clearance matters. Customs brokers prepare and file the documentation required for goods to cross international borders, and advise on tariff classification, valuation, and regulatory compliance. Automated customs brokerage platforms like FlavorCloud handle this programmatically at scale.

The process by which goods are reviewed and approved by customs authorities before entering a country. Clearance requires accurate documentation — commercial invoice, HS code, declared value, COO — and may involve duties payment, physical inspection, or additional compliance steps. Delays in clearance are a primary source of delivery exceptions for international shipments.

A temporary delay on a shipment by customs authorities, typically triggered by missing documentation, suspected misclassification, undervaluation, or random inspection protocols.

The process customs authorities use to determine the dutiable value of imported goods — the value on which ad valorem duties are calculated. The standard method is transaction value (the actual price paid or payable). Undervaluing goods to reduce duties is a form of customs fraud with serious legal consequences.

The monetary value of a shipment as stated on customs documentation. Declared value must accurately reflect the transaction value — what the buyer actually paid. Intentionally understating declared value is a customs violation. Declared value directly determines the duty and tax amount owed.

An Incoterm in which the seller is responsible for paying all duties, taxes, and import fees before goods reach the buyer. In ecommerce, DDP means these costs are calculated and collected at checkout — so the consumer pays no additional charges at delivery. DDP is strongly correlated with higher conversion rates, lower cart abandonment, and stronger repeat purchase behavior.

The opposite of DDP. Under DDU, the consumer is responsible for paying duties and taxes at the time of delivery — typically collected by the carrier or customs agent. Frequently associated with surprise charges, refused deliveries, and reduced repeat-purchase rates. Most merchants default to DDP wherever commercially viable.

A threshold below which imported goods enter a country duty-free with reduced documentation requirements. In the US, the Section 321 de minimis threshold was $800; China and Hong Kong lost eligibility on May 2, 2025, and the broader exemption was eliminated for all origins on August 29, 2025. Other countries maintain their own levels — Canada’s threshold is CAD $20 for most goods. Every shipment into the US is now dutiable regardless of value.

A tax levied by a government on imported goods, calculated as a percentage of declared value (ad valorem) or as a fixed rate per unit. Import duties are assessed at customs and are a component of the landed cost. Duty rates are determined by HS code and country of origin.

The legal entity responsible for ensuring exported goods comply with the origin country’s export laws and regulations. The EOR carries liability for export documentation, restricted party screening, and export control compliance. Contrast with IOR (Importer of Record), which governs the destination-country side of the transaction.

A treaty between two or more countries that reduces or eliminates tariffs on qualifying goods traded between them. To benefit from preferential FTA rates, goods must meet specific rules of origin and be accompanied by appropriate documentation (e.g., certificate of origin). Major FTAs relevant to cross-border ecommerce include USMCA, CPTPP, and various EU bilateral agreements.

The end-to-end process of receiving, processing, packing, and shipping an order to the end customer. In a cross-border context, fulfillment also encompasses customs documentation, duty payment, and last-mile delivery in the destination country. Regional fulfillment — warehousing inventory closer to international customers — is an increasingly common strategy for reducing cross-border transit times and landed costs.

The total value of goods sold through a platform or network over a given period, before deducting returns, fees, or other adjustments. GMV is the primary top-line metric for evaluating cross-border commerce scale.

A consumption tax applied to goods and services in many countries, functionally equivalent to VAT. GST applies to cross-border imports in countries including Canada, Australia, New Zealand, India, and Singapore. Thresholds and rates vary by country; merchants selling internationally must assess GST obligations for each destination market.

A commitment by the logistics or compliance provider that the landed cost calculated at checkout is the final amount the consumer will pay — with no additional charges at delivery. Distinct from an estimated landed cost, which can result in post-delivery billing from carriers or customs agents. FlavorCloud’s platform provides guaranteed landed cost at 99% accuracy for DDP shipments.

A standardized international product classification code used by customs authorities worldwide to assess duties and enforce trade regulations. HS codes are 6 digits at the international level, extended to 8–10 digits for country-specific tariff lines. Accurate HS classification is the foundation of correct duty calculation, COO determination, and FTA eligibility. Misclassification is one of the most common sources of customs penalties.

The US-specific extension of the international HS code system, extended to 10 digits for use in US customs filings. While “HS code” is used generically in most international contexts, merchants exporting to the US must use the HTS code format. Other countries have their own extensions (e.g., CN code in the EU, TARIC).

A US statute granting the President broad authority to regulate international commerce in response to declared national emergencies. IEEPA was used as the legal basis for significant 2025 cross-border tariff actions. The IEEPA tariff framework was struck down by the US Supreme Court in February 2026 and replaced by Section 122 authority within four days.

A set of internationally recognized trade terms published by the International Chamber of Commerce (ICC) that define buyer and seller responsibilities in international transactions — specifically, who pays for shipping, insurance, and customs costs at each stage. The most relevant Incoterms for cross-border ecommerce are DDP (seller pays all) and DDU/DAP (buyer pays duties on delivery).

The legal entity responsible for ensuring imported goods comply with destination-country customs laws, including accurate documentation, duty payment, and regulatory compliance. The IOR carries financial and regulatory liability for the shipment. For cross-border ecommerce, the merchant or their logistics provider typically acts as IOR — a critical compliance designation that cannot be assigned lightly.

The total cost to deliver a product to the end consumer in the destination market, including product price, international shipping, duties, taxes, customs processing fees, and any applicable national handling fees. Landed cost is what the consumer actually pays under DDP, or what arrives as a surprise at delivery under DDU. Accurate landed cost calculation at checkout is the single highest-impact lever for cross-border conversion.

The final leg of a shipment’s journey — from a local distribution hub or customs facility to the end consumer’s address. Last-mile is often the most expensive and variable portion of international delivery, particularly in markets with lower carrier density or complex delivery infrastructure.

The default tariff rate a country applies to imports from all WTO members not granted preferential treatment through a free trade agreement. MFN rates are the baseline — FTA rates may be lower, while punitive tariffs (like those applied under IEEPA) may be significantly higher.

A single cross-border package containing items with more than one Country of Origin. Under current US guidance, a single high-tariff-COO item in a mixed shipment can subject the entire package to the higher tariff treatment. Mixed shipments require careful product bundling strategy in a high-tariff environment.

The legal entity responsible for processing a customer’s payment, collecting applicable taxes, and assuming liability for the transaction. In cross-border ecommerce, the MOR is accountable for VAT/GST collection and remittance in the destination country. Some brands act as their own MOR; others use a third-party MOR service to offload tax compliance across multiple markets.

Relocating manufacturing or fulfillment operations to a country geographically or economically closer to the destination market. Nearshoring has accelerated as a tariff mitigation strategy, with merchants shifting production to Mexico, Colombia, Vietnam, and India to reduce exposure to US-China tariffs.

The default origin classification for goods that do not qualify for preferential treatment under a free trade agreement. Goods with non-preferential origin are assessed at MFN rates — or higher if punitive tariffs apply. Goods manufactured in China or Hong Kong currently carry non-preferential origin status for US imports.

A tariff imposed by one country in direct response to tariffs imposed by another — a retaliatory trade measure. The proliferation of reciprocal tariffs between major trading partners (US, China, Canada, EU) was a defining feature of the 2025 global trade environment and a key driver of landed cost volatility for cross-border merchants.

The share of unique cross-border buyers in a given period who placed two or more cross-border orders within that same period. A within-period metric (not cohorted lifetime retention). Strong repeat purchase rates signal that the cross-border experience — from checkout through delivery — met or exceeded customer expectations.

The process of returning an internationally shipped item to the merchant. Cross-border returns are operationally complex due to customs re-entry requirements, reverse duty obligations, and the cost of international shipping in both directions. Inability to offer affordable returns is a documented conversion barrier in international markets. Also called reverse logistics.

A US customs provision that historically allowed shipments valued at $800 or less to enter duty-free with minimal documentation — named for Section 321 of the Tariff Act of 1930. China and Hong Kong-origin goods lost Section 321 eligibility on May 2, 2025. The full exemption was eliminated for all goods of all origins on August 29, 2025. Every shipment into the US is now dutiable, regardless of value or origin. See also: De Minimis.

A unique identifier assigned to a distinct product for inventory management purposes. In cross-border logistics, SKU-level data is essential for accurate HS classification, COO documentation, and landed cost calculation. Merchants with incomplete or inconsistent SKU data are at significantly higher risk of customs misclassification.

The legal entity recognized as the seller in a transaction for tax, regulatory, and compliance purposes. In cross-border contexts, the SOR determines which tax rules apply, which entity must register for local VAT/GST, and who bears responsibility for product compliance in the destination market. MOR and SOR are often the same entity, but can be split on marketplace platforms.

The customs principle used to determine Country of Origin when goods are produced across multiple countries. Generally, the country in which a product changed in form, function, or commercial identity is assigned as the COO. Minor finishing or repackaging does not qualify as substantial transformation and does not change COO.

A government-imposed tax on imported goods, used both as a source of revenue and as a trade policy tool. Tariffs may be ad valorem (percentage of value), specific (fixed per unit), or compound (both). Rates are determined by HS code, country of origin, and applicable trade agreements.

A specific origin-destination country pairing for a cross-border shipment. Performance metrics — conversion rates, customs hold rates, transit times — often vary significantly by trade lane, reflecting differences in carrier infrastructure, customs enforcement, and regulatory environment. Strategic merchants analyze performance at the trade-lane level rather than applying global averages.

The time elapsed between a shipment leaving the origin facility and arriving at the destination address. In cross-border logistics, transit time includes carrier pickup, international transit, customs clearance, and last-mile delivery. Transit time is distinct from delivery promise — customs holds, carrier delays, and last-mile failures can all cause deviation from expected timelines.

A consumption tax applied at each stage of the supply chain in most countries outside the US. For cross-border ecommerce, VAT is applied on imports at the point of customs entry. VAT rates and thresholds vary significantly by country; the EU standard rate is typically 20–25%. EU VAT reform has been an ongoing source of compliance complexity for merchants selling into Europe.

The international body that governs the rules of trade between nations, including the customs valuation agreement that defines how member countries assess the value of imports for duty purposes. WTO membership determines MFN tariff eligibility and forms the baseline framework within which bilateral trade agreements operate.