South Korea HSK Code Guide (2026)

How Import Duties Work in South Korea

Importing goods into South Korea involves understanding a multi-layered duty and tax system administered by the Korea Customs Service (KCS). The primary components of the total landed cost are the customs duty and a Value Added Tax (VAT).

Customs duties in South Korea are generally calculated based on the Cost, Insurance, and Freight (CIF) value of the imported goods. The specific duty rate applied depends on the HSK code of the product, its origin, and any applicable Free Trade Agreements (FTAs) that South Korea has in place.

In addition to customs duty, a standard Value Added Tax (VAT) of 10% is levied on most imported goods. This VAT is calculated on the sum of the CIF value and the customs duty. Therefore, the total landed cost can be summarized by the following formula:

Total Landed Cost = CIF Value + Customs Duty + VAT

Where:

• Customs Duty = CIF Value × Applicable Duty Rate
• VAT = (CIF Value + Customs Duty) × 10%

Certain products may also be subject to additional surcharges or special taxes. These can include:

• Special Consumption Tax: Applied to luxury goods, durable consumer goods, and certain energy products.
• Individual Consumption Tax: Similar to special consumption tax, applied to specific high-value items.
• Education Tax: Levied on certain goods, often in conjunction with other taxes.
• Rural Development Tax: Applied to specific agricultural and fishery products to support rural development.

It is crucial for importers to accurately classify their goods using the HSK code and to be aware of any specific taxes or duties that may apply beyond the standard customs duty and VAT.

HSK Code Structure

The Harmonized System (HS) is an internationally standardized system of names and numbers for classifying traded products, developed and maintained by the World Customs Organization (WCO). Globally, the HS code provides a 6-digit classification that is consistent across most countries.

South Korea, however, extends this global standard with its own national tariff system, known as the HSK (Harmonized System of Korea) code. The HSK code is a 10-digit classification system, providing a more detailed and granular breakdown of products for customs purposes, statistical analysis, and the application of specific national duties and regulations.

The structure breaks down as follows:

• First 2 digits: HS Chapter (e.g., 84 for Nuclear reactors, boilers, machinery and mechanical appliances)
• First 4 digits: HS Heading (e.g., 8471 for Automatic data processing machines)
• First 6 digits: HS Subheading (e.g., 847130 for Portable automatic data processing machines, weighing not more than 10 kg, comprising at least a central processing unit, a keyboard and a display)
• Next 4 digits (7th-10th): National Subheadings (e.g., .0000 for South Korea's specific classification within that 6-digit subheading)

For example, a laptop, which falls under the global 6-digit HS code 8471.30, would be further specified in South Korea with a 10-digit HSK code such as 8471.30.0000. While the first six digits are globally harmonized, the subsequent four digits are unique to South Korea's tariff schedule, allowing for precise identification and application of national trade policies.

Top Imported Products

South Korea's economy is heavily reliant on imports to fuel its advanced manufacturing and technology sectors. Key import categories reflect its industrial needs and consumer demands:

• Petroleum and Crude Oil - Essential for energy and industrial processes. View trade data
• Semiconductors and Integrated Circuits - Crucial components for its electronics industry. View trade data
• Natural Gas (LNG) - A significant energy source for power generation and heating. View trade data
• Electronic Components - Including displays, circuit boards, and other parts for assembly. View trade data
• Machinery and Mechanical Appliances Parts - For its robust manufacturing sector. View trade data
• Optical, Photographic, Cinematographic, Measuring, Checking, Precision, Medical or Surgical Instruments and Apparatus - High-tech equipment for various industries. View trade data
• Organic Chemicals - Raw materials for the chemical and pharmaceutical industries. View trade data
• Iron and Steel - Used in construction, automotive, and shipbuilding industries. View trade data
• Automotive Parts and Accessories - Supporting its large vehicle manufacturing base. View trade data
• Plastics and Articles Thereof - For packaging, manufacturing, and consumer goods. View trade data

Most Used HS Codes in South Korea

These HS codes represent some of the most frequently traded product categories in South Korea, reflecting its industrial strengths and consumer market:

• 8542 - Electronic integrated circuits (Semiconductors)
• 2709 - Petroleum oils and oils obtained from bituminous minerals, crude
• 8703 - Motor cars and other motor vehicles principally designed for the transport of persons
• 8471 - Automatic data processing machines and units thereof (Computers, laptops)
• 8517 - Telephone sets, including smartphones and other apparatus for the transmission or reception of voice, images or other data
• 2711 - Petroleum gases and other gaseous hydrocarbons (Natural gas)
• 8528 - Monitors and projectors, not incorporating television reception apparatus; reception apparatus for television
• 7208 - Flat-rolled products of iron or non-alloy steel, of a width of 600 mm or more, hot-rolled, not in coils, not further worked than hot-rolled
• 3901 - Polymers of ethylene, in primary forms
• 9018 - Instruments and appliances used in medical, surgical, dental or veterinary sciences

Duty Rate Comparison

Comparing duty rates across different regions highlights the impact of trade agreements and national economic policies. The following table provides approximate general duty rate ranges for selected products in South Korea, the USA, and the EU, without considering specific FTA benefits which can significantly reduce or eliminate duties.

Note: These are general ranges and can vary based on specific product type, materials, origin, and applicable trade agreements. Always consult the official tariff schedules for precise rates.

South Korea Trade Overview

South Korea is a global economic powerhouse, heavily reliant on international trade. Its economy is export-driven, with a strong focus on high-tech manufacturing and innovation. The country consistently ranks among the top trading nations worldwide.

• Approximate Total Trade: South Korea's total annual trade (imports + exports) typically exceeds 1 trillion USD.
• Top 5 Trading Partners:
  • China
  • United States
  • Japan
  • Vietnam
  • Germany
• Key Trade Sectors:
  • Exports: Semiconductors, vehicles (automobiles, ships), petroleum products, machinery, chemicals, steel, mobile phones, displays.
  • Imports: Petroleum, semiconductors, natural gas, electronic components, machinery, chemicals, iron and steel.
• Major Free Trade Agreements (FTAs): South Korea has an extensive network of FTAs, significantly impacting its trade flows and duty rates. Key agreements include:
  • Korea-US Free Trade Agreement (KORUS FTA)
  • Korea-EU Free Trade Agreement
  • Regional Comprehensive Economic Partnership (RCEP)
  • Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP)
  • FTAs with China, ASEAN, India, Australia, Canada, and others.

For more detailed information, explore our South Korea Trade Overview page.

Import Requirements

Importing into South Korea requires adherence to specific regulations and documentation to ensure smooth customs clearance. The Korea Customs Service (KCS) oversees these processes.

Required Licenses/Registrations:

• Business Registration: Importers must be registered as a business entity in South Korea.
• Import Business Registration: Companies engaged in import activities often need to register specifically as an import business with the relevant authorities.
• Product-Specific Licenses/Certifications: Many products require special permits or certifications before import. Examples include:
  • Food and Agricultural Products: Quarantine certificates, health certificates, and compliance with food safety standards from the Ministry of Food and Drug Safety (MFDS).
  • Medical Devices and Pharmaceuticals: Approval from MFDS.
  • Electronics: KC Mark certification for safety and electromagnetic compatibility.
  • Cosmetics: Registration and compliance with MFDS regulations.
  • Chemicals: Compliance with the Chemical Control Act (CCA) and Act on Registration and Evaluation of Chemicals (K-REACH).

Key Documentation:

• Commercial Invoice: Detailed description of goods, value, quantity, and terms of sale.
• Packing List: Itemized list of contents in each package.
• Bill of Lading (for sea freight) or Air Waybill (for air freight): Contract between the shipper and carrier.
• Certificate of Origin (COO): Essential for claiming preferential duty rates under FTAs.
• Import Declaration Form: Submitted to the Korea Customs Service.
• Insurance Certificate: If goods are insured.
• Product-Specific Certificates: Any required licenses, permits, or test reports (e.g., health certificates, KC Mark).

Customs Process Overview:

1. Arrival of Goods: Goods arrive at a South Korean port or airport.
2. Customs Declaration: The importer or their customs broker submits an import declaration to the KCS, along with all required documentation.
3. Document Review & Inspection: KCS reviews the declaration and documents. Physical inspection of goods may occur, especially for high-risk items or random checks.
4. Duty & Tax Assessment: KCS assesses the applicable customs duties, VAT, and any other special taxes based on the HSK code and declared value.
5. Payment of Duties & Taxes: The importer pays the assessed duties and taxes.
6. Customs Clearance & Release: Upon payment and successful clearance, the goods are released for domestic distribution.

How to Find the Correct HSK Code

Accurately classifying your product with the correct HSK code is paramount for smooth customs clearance, correct duty assessment, and compliance with South Korean regulations. A misclassified product can lead to delays, penalties, or incorrect duty payments.

Classification Tips Specific to South Korea:

• Detailed Product Description: Provide a comprehensive description of your product, including its function, composition, materials, and intended use. The more detail, the better.
• Consult the Korean Tariff Schedule: The official Korean Tariff Schedule (available via the Korea Customs Service website) provides the most accurate and up-to-date HSK codes and their corresponding descriptions and duty rates.
• Consider the "Essential Character": For products composed of multiple materials or components, determine which component gives the product its "essential character." This is a key principle in HS classification.
• End-Use Consideration: For certain products, the intended end-use can influence the HSK code.
• Binding Tariff Information (BTI): If you are unsure about a complex product, you can apply to the Korea Customs Service for a Binding Tariff Information ruling. This provides a legally binding classification decision for your specific product.

Common Mistakes:

• Generalizing: Using a broad 6-digit HS code without delving into the specific 10-digit HSK details can lead to misclassification.
• Not Checking Updates: Tariff schedules and HSK codes can be updated annually or periodically. Always use the most current version.
• Misinterpreting Product Function: A product's primary function might not be immediately obvious, leading to incorrect classification. For example, a device with multiple functions should be classified by its principal function.
• Relying Solely on Supplier Information: While supplier-provided HS codes are a good starting point, always verify them against the Korean tariff schedule, as codes can differ between countries at the national level.

For assistance, utilize our HS Code Finder Tool, or consult with a local customs broker or trade expert in South Korea.

Frequently Asked Questions

What is HSK?

HSK stands for Harmonized System of Korea. It is South Korea's national 10-digit tariff classification system, built upon the global 6-digit Harmonized System (HS) code. The additional four digits provide more specific product classification for customs duties, statistics, and regulatory purposes within South Korea.

How do I calculate import duty and VAT in South Korea?

To calculate import duty, multiply the CIF (Cost, Insurance, Freight) value of your goods by the applicable HSK duty rate. To calculate VAT, add the customs duty to the CIF value, then multiply that sum by the standard 10% VAT rate. The total landed cost is the sum of the CIF value, customs duty, and VAT, plus any other applicable special taxes.

Is the HS code the same worldwide?

The first six digits of the HS code are globally harmonized and generally consistent across most countries, providing a common language for international trade. However, countries like South Korea (with its HSK system) extend these six digits with additional national digits (e.g., 7th-10th digits) to provide more detailed classification specific to their own tariff schedules and regulations. So, while the core is global, the full code can vary.

What are South Korea's major Free Trade Agreements (FTAs)?

South Korea has a robust network of FTAs. Key agreements include the Korea-US Free Trade Agreement (KORUS FTA), the Korea-EU Free Trade Agreement, the Regional Comprehensive Economic Partnership (RCEP), and the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP). These agreements offer preferential duty rates for eligible goods traded between member countries.

Who administers customs and trade regulations in South Korea?

The Korea Customs Service (KCS) is the primary government agency responsible for administering customs duties, enforcing trade regulations, facilitating legitimate trade, and preventing illegal activities at South Korea's borders.