## Introduction to International Trade

International trade involves the exchange of goods and services across national borders. It is driven by principles like comparative advantage, where countries specialise in producing what they do most efficiently, leading to a wider variety of goods, potentially lower prices, and economic growth for participating nations.

## Key Stakeholders

• Exporters: Businesses selling goods or services to another country.
• Importers: Businesses purchasing goods or services from another country.
• Customs Authorities (HMRC in GB): Government bodies responsible for enforcing trade laws, collecting duties and taxes, and facilitating legitimate trade while ensuring border security.
• Freight Forwarders & Customs Agents: Intermediaries who manage logistics, transport, and complete customs declarations on behalf of importers and exporters.
• Other key players include transport companies, banks, and insurers.

## The Role of Customs (HMRC)

Customs plays a multifaceted role in international trade, particularly for Great Britain:

• Revenue Collection: Collecting Customs Duty, Excise Duty, and Import VAT on goods entering the UK.
• Trade Facilitation: Streamlining processes for compliant trade to ensure goods move efficiently across borders.
• Border Security: Protecting the public from illegal goods, enforcing prohibitions and restrictions (e.g., on weapons, drugs, endangered species), and safeguarding public health and safety.
• Statistical Data: Gathering data on trade flows for economic analysis and policy-making.

## Core Concepts in Trade

• Tariffs (Customs Duty): Taxes levied on imported goods. The UK applies the UK Global Tariff (UKGT) to goods from countries without a preferential trade agreement.
• Non-Tariff Barriers (NTBs): Restrictions on trade other than tariffs, such as import quotas, licensing requirements, product standards, or complex customs procedures.
• Trade Agreements: Bilateral or multilateral agreements (e.g., Free Trade Agreements - FTAs) designed to reduce or eliminate tariffs and NTBs between signatory countries, promoting easier trade and economic integration.
• Incoterms®: Internationally recognised rules published by the ICC that define the responsibilities of buyers and sellers for the delivery of goods under sales contracts. They clarify who is responsible for costs, risks, and logistics at various stages of the journey.
• Commodity Codes (HS Codes): A global system for classifying goods (Harmonised System), essential for determining applicable tariffs, regulations, and for statistical purposes.
• Customs Procedure Codes (CPCs): UK-specific codes used on customs declarations to identify the customs procedure goods are being entered into (e.g., free circulation, warehousing, temporary admission).

## Essential Documentation (Overview)

Key documents required for international shipments typically include:

• Commercial Invoice: A bill for the goods from the seller to the buyer, detailing the transaction, goods description, value, and parties involved.
• Packing List: Provides details of the contents of each package, including weights and dimensions.
• Transport Document: (e.g., Air Waybill for air freight, Bill of Lading for sea freight, CMR for road freight) A contract of carriage and receipt of goods.
• Certificate of Origin: A document certifying the country where the goods were produced, often required for preferential tariff treatment under FTAs.
• Licences: Specific import or export licences may be required for controlled goods (e.g., military items, dual-use goods, certain chemicals, or agricultural products).

## Business and Agent Responsibilities

Understanding the responsibilities of both the business (importer/exporter, also known as the principal) and the customs agent is crucial for compliance with UK customs legislation, particularly under the Customs Declaration Service (CDS).

## Principal's Responsibilities

The principal holds the ultimate legal responsibility for the accuracy of information provided to HMRC and for ensuring compliance with all customs regulations. Key responsibilities include:

• Accuracy of Information: Providing correct and complete details about goods, origin, value, and classification to the agent or directly to HMRC.
• Record Keeping: Maintaining all relevant commercial and customs documents for a minimum of 6 years from the date of the customs declaration. This includes invoices, transport documents, proof of origin, and payment records.
• Duty and Tax Payment: Ensuring the correct customs duties, VAT, and other charges are paid on time.
• Due Diligence: Exercising reasonable care to ensure the legality and accuracy of all transactions, including knowing your suppliers and customers.
• Authorisations: Holding necessary authorisations such as an EORI number and any specific permits or licences required for the goods.

## Agent's Responsibilities

Customs agents act on behalf of the principal and have specific duties to ensure proper customs clearance. Their responsibilities include:

• Professional Competence: Ensuring staff are adequately trained and knowledgeable in customs procedures and the CDS system.
• Accuracy of Declarations: Submitting accurate and timely customs declarations based on the information provided by the principal.
• Communication: Keeping the principal informed of declaration status, potential issues, and liabilities.
• Record Keeping: Maintaining records of declarations submitted, instructions received, and supporting documentation for 6 years.
• Due Diligence: Verifying the information received from the principal where reasonable to do so, and advising on compliance.

## Types of Representation

The relationship between the principal and the agent is defined by the type of representation:

• Direct Representation: The agent acts in the name of and on behalf of the principal. In this scenario, the principal is solely liable for any customs debt (duties, taxes, penalties). The agent must have written authorisation from the principal.
• Indirect Representation: The agent acts in their own name but on behalf of the principal. Under indirect representation, both the agent and the principal are jointly and severally liable for any customs debt. This means HMRC can pursue either party for the full amount. Again, written authorisation from the principal is mandatory.

## Key Concepts

• Written Authorisation: A legal requirement for an agent to act on behalf of a principal, regardless of the type of representation.
• EORI (Economic Operator Registration and Identification): An essential unique identification number required for all businesses involved in customs activities within the UK and EU.

## UK Trade Tariff and Commodity Codes

The UK Trade Tariff is the official government publication that provides comprehensive information required for importing and exporting goods. It's an essential tool for customs clearance agents, containing the classification of goods, applicable duty rates, taxes, specific measures (such as import/export controls, prohibitions, and restrictions), customs procedures, and rules of origin. The UK Trade Tariff is primarily accessed via GOV.UK and is based on the internationally recognised Harmonised System (HS) nomenclature.

Commodity Codes, also known as Tariff codes, HS codes, or CN codes, are numerical codes used to classify goods for customs declarations. Accurate classification is critical as it determines:

• Customs Duty rates (including Anti-Dumping and Countervailing Duties).
• VAT and Excise Duty rates.
• Whether import or export licences are required.
• The application of specific customs procedures.
• The collection of trade statistics.

Structure of Commodity Codes

Commodity codes are structured hierarchically:

• HS (Harmonised System): The first 6 digits are an international standard, consistent across most trading nations. They are organised into Chapters (2 digits), Headings (4 digits), and Subheadings (6 digits).
• Combined Nomenclature (CN): For goods moving into or out of the EU, an additional 2 digits are added to the HS code, making it 8 digits.
• UK Trade Tariff: For imports into Great Britain, the commodity code is 10 digits. This includes the 8-digit CN code plus two further digits for UK-specific tariff measures. For exports from Great Britain, an 8-digit commodity code (the CN code) is generally used. Sometimes, an additional 4-digit Additional Code may be required for specific measures, effectively making some declarations 14 digits.

Classification Principles

Classifying goods correctly requires applying the General Rules for the Interpretation (GRI) of the Harmonised System. These rules provide a legal framework for classification, guiding users to classify goods based on their material, function, and form. It's crucial to start at the chapter level and work systematically through the headings and subheadings.

Consequences of Incorrect Classification

Using an incorrect commodity code can lead to serious issues, including:

• Underpayment or overpayment of duties and taxes.
• Delays in customs clearance and potential storage costs.
• Penalties from HMRC.
• Incorrect application of import/export controls, potentially leading to illegal trade.

To ensure legal certainty, businesses can apply for a Binding Tariff Information (BTI) decision from HMRC, which is a legally binding classification decision for their goods.

## Customs Procedure Codes (CPCs)

Customs Procedure Codes (CPCs) are fundamental 7-digit codes used on a CDS declaration to specify the customs procedure being requested for goods. They are crucial for determining the correct customs treatment, duties, taxes, and the specific data elements required for a compliant declaration.

Structure of a CPC

A CPC is comprised of three parts, forming a 7-digit code:

• First 2 Digits: Requested Procedure
• These indicate the new customs procedure being applied to the goods. Examples include '40' for import for free circulation and home use, '01' for permanent export, or '71' for placing goods into a customs warehouse.
• Next 2 Digits: Previous Procedure
• These specify the previous customs procedure the goods were under, if any. For example, '00' indicates no previous procedure. If goods are being released from a customs warehouse, this might be '71'.
• Last 3 Digits: Additional Procedure Code (APC)
• These codes provide further detail about the requested procedure, often specifying reliefs, conditions, or specific circumstances that apply. These can be Union Additional Procedure Codes (UAPCs) or National Additional Procedure Codes (NAPCs). They are also sometimes referred to as Data Element 1/11 codes if used separately.

Importance and Impact

The CPC is arguably the most critical data element on a customs declaration (Data Element 1/10). It directly impacts:

• Customs Regime: Whether goods are imported, exported, placed under a special procedure (e.g., Inward Processing, Customs Warehousing), or released from one.
• Duties and Taxes: Whether duties and VAT are payable, suspended, relieved, or exempt.
• Required Data Elements: The CPC dictates which other data elements (e.g., document codes, additional information codes, item prices) must be provided to complete a valid declaration.
• Authorisations: Many CPCs require the declarant to hold a specific customs authorisation (e.g., for special procedures).
• Statistical Requirements: It helps HMRC gather trade statistics.

Key Reference and Examples

The definitive source for CPCs and their associated requirements is Volume 3 of the UK Integrated Online Tariff (CDS Declaration Instructions for Imports and Exports). This resource details the conditions for using each CPC, the required supporting documents, and the specific data elements that must accompany it.

Common CPC Examples:

• 40 00 000: Import for free circulation and home use (standard import).
• 01 00 000: Permanent export of goods.
• 71 00 000: Placing goods under the Customs Warehousing procedure.
• 40 71 000: Release of goods from Customs Warehousing for free circulation.

## Valuation for Customs Purposes

Customs Valuation is the process of determining the Customs Value of imported goods. This value forms the basis for calculating Customs Duty and often Import VAT. The rules are internationally harmonised, based on the WTO Valuation Agreement (Article VII of GATT 1994), and implemented into UK law. There are six hierarchical methods of valuation, which must be applied in a strict, sequential order.

## Method 1: Transaction Value (The Primary Method)

This is the most frequently used method. The Customs Value is the price actually paid or payable for the goods when sold for export to the UK. This method can only be used if specific conditions are met:

• There are no restrictions on the disposal or use of the goods by the buyer (except those imposed by law, geographical limitations, or not substantially affecting value).
• The sale or price is not subject to conditions or considerations for which a value cannot be determined.
• No part of the proceeds of any subsequent resale, disposal, or use accrues to the seller, unless an adjustment can be made.
• The buyer and seller are not related parties, or if they are, the relationship did not influence the price.

Additions to the Price Paid or Payable

If not already included in the price, the following must be added to determine the Customs Value:

• Commissions and brokerage, excluding buying commissions.
• The cost of containers and packing.
• Assists: The value of goods or services supplied free or at reduced cost by the buyer to the seller for use in the production of the imported goods (e.g., materials, tools, engineering, development work).
• Royalties and licence fees related to the imported goods.
• The value of any part of the proceeds of subsequent resale, disposal, or use that accrues directly or indirectly to the seller.
• The cost of transport and insurance, and loading/handling charges, to the UK border (the place of introduction into the UK).

Deductions from the Price Paid or Payable

If included in the price, the following should be excluded from the Customs Value:

• Charges for transport and insurance *after* entry into the UK.
• Charges for construction, erection, assembly, maintenance, or technical assistance performed *after* importation.
• Customs duties and other taxes payable in the UK.
• Buying commissions.
• Interest charges on deferred payments.

## Other Valuation Methods (Hierarchical Order)

If the Transaction Value method cannot be applied, the following methods are used sequentially:

1. Transaction Value of Identical Goods: Based on the value of identical goods sold for export to the UK at or about the same time.

2. Transaction Value of Similar Goods: Based on the value of similar goods sold for export to the UK at or about the same time.

3. Deductive Method: Based on the unit price at which the imported goods (or identical/similar goods) are sold in the UK, with deductions for post-importation costs and profit.

4. Computative Method: Based on the cost of production of the goods in the country of export, plus profit and general expenses.

5. Fall-back Method: Used when none of the above methods can be applied, using reasonable means consistent with WTO principles, but not arbitrary values.

## Key Principles

• Place of Introduction: For the UK, this is the UK border. All costs up to this point are generally included in the Customs Value; costs incurred after this point are excluded.
• Incoterms: Understanding the Incoterm used in a sale is crucial for determining which costs are included in the price paid and which require adjustment for customs valuation purposes.

## Rules of Origin

Rules of Origin (RoO) are crucial for determining the "economic nationality" of goods. This is vital for applying the correct customs duties, trade policy measures (like quotas or anti-dumping duties), and for trade statistics. Understanding RoO ensures compliance and allows businesses to benefit from preferential trade agreements.

## Types of Origin

There are two main types of origin:

• Non-Preferential Origin (NPO): This determines the country of origin for general trade policy purposes, such as applying Most Favoured Nation (MFN) tariffs, quotas, or anti-dumping measures. It defines where goods come from, but doesn't typically grant reduced duties.
• Preferential Origin (PO): This is used to determine if goods qualify for reduced or zero customs duties under specific trade agreements (e.g., Free Trade Agreements - FTAs, or the Generalised Scheme of Preferences - GSP). Claiming preferential origin requires strict adherence to the agreement's specific rules.

## Determining Origin

The method for determining origin depends on whether the goods are entirely produced in one country or involve materials from multiple countries:

• Wholly Obtained (WO): Goods are considered wholly obtained if they are entirely produced in a single country without incorporating any non-originating materials. Examples include minerals extracted, live animals born and raised, harvested crops, or products manufactured exclusively from such materials.
• Substantial Transformation (ST): For goods produced using materials from more than one country, origin is conferred in the country where the last substantial transformation took place. This is typically assessed using one of three criteria:
• Change of Tariff Heading (CTH): The most common rule. The manufacturing process must result in a change of the product's Harmonised System (HS) tariff heading (usually at the 4 or 6-digit level) compared to all non-originating materials used.
• Value Added (VA) / Ad Valorem: A specified percentage of the product's ex-works price must be added in the originating country, or the value of non-originating materials must not exceed a certain percentage of the ex-works price.
• Specific Processing Operations (SPO): Certain specific manufacturing or processing operations must be carried out (e.g., chemical reactions, weaving, printing).

## Key Concepts and Proof

• Cumulation: Allows materials originating in one partner country of a trade agreement to be considered as originating in another partner country when used in the manufacture of a product. This facilitates regional supply chains.
• Tolerance (De Minimis): Permits a small percentage (e.g., 10-15%) of non-originating materials to be used without affecting the originating status, provided other rules are met.
• Insufficient Operations: Minor processes that are never enough to confer origin, such as simple assembly, packaging, labelling, or dilution.
• Proof of Origin: Essential for claiming preferential duties. This can be a Statement on Origin (SoO) (self-certified by the exporter, e.g., for UK-EU TCA, REX system for GSP), an Origin Declaration, or a Movement Certificate (e.g., EUR.1, EUR-MED) issued by customs. For non-preferential origin, a Certificate of Origin (CoO) from a Chamber of Commerce is common.
• Binding Origin Information (BOI): A written decision issued by HMRC that provides legally binding confirmation of the origin of a specific product for a set period, offering certainty to traders.

## The Customs Declaration Service (CDS)

The Customs Declaration Service (CDS) is the UK's electronic system for making customs declarations, replacing the legacy CHIEF (Customs Handling of Import and Export Freight) system. It was fully implemented for imports in October 2022 and for exports in November 2023, marking a significant modernisation of UK customs processes.

Purpose and Evolution

CDS was developed to meet the requirements of the Union Customs Code (UCC), which continued to apply to Northern Ireland under the Windsor Framework, and to provide a modern, flexible platform for managing the UK's customs borders post-Brexit. It is based on the World Customs Organisation (WCO) Data Model, allowing for greater data granularity and harmonisation with international standards.

Key Features and Benefits

• Increased Data Requirements: CDS requires significantly more data elements than CHIEF, providing HMRC with a more comprehensive view of goods movements. This supports better risk assessment and compliance.
• Automated Processes: The system offers enhanced automation for duty calculations, quota management, and customs procedure management.
• Improved Audit Trail: Detailed data capture facilitates a clearer audit trail for businesses and customs authorities.
• Access: Businesses and agents access CDS primarily through third-party customs software that integrates with HMRC's API (Application Programming Interface). There is no direct web-based portal for making full declarations.
• Declaration Categories: CDS uses specific Declaration Categories (e.g., H1 for standard import, H2 for simplified import) and Data Elements (DEs), which are organised into groups, to structure declarations. This ensures all necessary information is provided for different customs procedures.

Making a Declaration on CDS

To make a declaration on CDS, businesses or their agents must:

1. Have a Government Gateway ID and be enrolled for CDS.

2. Use customs software that is compatible with CDS.

3. Provide detailed information covering all relevant Data Elements (DEs), which can number over 60 for a full import declaration. These include details about the consignor/consignee, goods description, commodity code, customs procedure code (CPC), valuation, duties, and taxes.

4. Receive a Movement Reference Number (MRN) upon submission, which is a unique identifier for the declaration.

CDS is fundamental to international trade for GB businesses, enabling compliance with customs legislation and facilitating the smooth movement of goods across borders.

## Reliefs and Special Procedures

Customs Reliefs and Special Procedures offer mechanisms for businesses to defer, reduce, or suspend the payment of customs duties and VAT on goods, provided specific conditions are met. These procedures are integral for optimising cash flow, enhancing competitiveness in international trade, and streamlining logistics. Obtaining authorisation from HMRC is a prerequisite, along with stringent adherence to customs regulations and record-keeping.

## Inward Processing (IP)

Inward Processing (IP) permits the import of non-Union goods into the UK for processing, manufacturing, or repair without incurring customs duty or import VAT. The core principle is that these processed goods will subsequently be re-exported outside the UK (suspension system). Alternatively, under the drawback system, duties are paid upfront and then repaid upon re-export. IP is crucial for businesses that add value to imported raw materials or components before selling them internationally.

## Outward Processing (OP)

Outward Processing (OP) facilitates the temporary export of Union goods from the UK for processing, manufacturing, or repair in a non-Union country. Upon re-importation into the UK, the processed goods benefit from partial or full relief from import duty. Duty is typically levied only on the value of the processing or repair work performed abroad, rather than on the full value of the re-imported goods. This procedure supports industries that utilise overseas services for specific stages of production.

## Temporary Admission (TA)

Temporary Admission (TA) allows non-Union goods to be brought into the UK for a specific purpose and a limited duration (generally up to 24 months) with total or partial relief from import duty and VAT. The fundamental requirement is that the goods must be re-exported in the same state as imported, allowing only for normal depreciation. Common applications include exhibition goods, professional equipment, samples, and items for testing. A financial guarantee for potential duties and taxes is often required.

## Customs Warehousing (CW)

Customs Warehousing (CW) involves storing non-Union goods in an authorised facility within the UK without immediate payment of customs duty or import VAT. Goods can remain in a customs warehouse indefinitely, and duties/VAT only become payable when they are released into free circulation or moved to another customs procedure. This provides significant cash flow advantages and operational flexibility for inventory management.

## End-Use Relief

End-Use Relief enables the import of specific goods at a reduced or zero rate of customs duty based on their prescribed intended use. The goods must be put to this specific use within a defined period, and customs authorities monitor compliance. Failure to use the goods for the specified purpose results in the full duty becoming payable. Examples include certain components for specific industries like aerospace or shipbuilding.

## Returned Goods Relief (RGR)

Returned Goods Relief (RGR) grants relief from import duty and VAT for goods previously exported from the UK (or EU) that are subsequently re-imported. To qualify, the goods must be re-imported within a specific timeframe (typically 3 years) and generally be in the same state as when they were exported, though minor repairs or maintenance are usually permissible. This relief prevents double taxation on goods that have merely left and re-entered the customs territory.