Korea customs changes for online brands: what is changing and how to register

What is changing

KCS is introducing a dedicated e-commerce customs platform to handle online purchases more efficiently and to tighten control over data quality, buyer identity, and shipment risk. Registration for e-commerce operators opened on June 5, 2026, applications are accepted until July 31, 2026, and the new system is scheduled to go live on August 15, 2026.

At the same time, KCS is strengthening the use of the Personal Customs Clearance Code, or PCCC, which is the personal import ID Korean shoppers use for customs clearance. KCS will also introduce OTP verification, meaning a one-time password will be used alongside the PCCC to confirm the buyer’s identity during the import process.

For brands, the headline message is simple: Korea customs will rely more on structured digital order data and verified customer identity, and less on manual or incomplete shipment information.

Terms definitions

• PCCC: A personal customs ID used by shoppers in Korea when importing goods for personal use.
• OTP: A one-time password sent to the shopper to confirm that the PCCC is being used by the correct person.
• API: A digital connection that lets one system send information directly into another system without manual re-entry.
• REST API: The specific web-based connection method KCS uses for its e-commerce platform; for a brand, this simply means an approved system-to-system link that sends order and buyer data electronically to customs.

Why this matters to brands

If a brand sells to Korean consumers, checkout data and customs data now have a direct impact on delivery performance. From August 15, 2026, registered operators with an approved system connection can use the new e-commerce declaration format, while non-registered or non-integrated shipments may face longer clearance and more customs inspection.

KCS will also verify whether the buyer’s name, phone number, and postal code match the details tied to the PCCC. If English names are used, first name and last name must match exactly, and the delivery address also needs to align with the shopper’s registered information.

In practical terms, brands should expect higher delivery friction if customer data is missing, entered incorrectly, or passed to the carrier in the wrong format. The likely consequences are customs holds, slower release, extra manual checks, and a poorer post-purchase experience for Korean shoppers.

What brands need to collect

For Korea-bound B2C orders, brands should prepare to collect and maintain the following buyer information as part of checkout or post-purchase verification.

• PCCC.
• Full customer name, ideally separated into first name and last name fields for English names.
• Mobile phone number.
• Postal code and delivery address.
• Email address, because new PCCC issuance and OTP delivery rely on validated email information.
  
  

If a platform is connected directly to KCS through API, customs can provide OTP and PCCC information through the system flow. This is mainly relevant for large e‑commerce players (big marketplaces, major platforms, high‑volume brands) that have the scale and resources to integrate directly with KCS and submit full transaction data via the e‑commerce platform/API. SMEs are not the primary audience for that layer.

For small and mid‑size brands, the hard requirement is to:

• Collect PCCC plus name, phone, address and postal code at checkout for Korea shipments.
• Ensure that data matches what the customer has registered with KCS and is kept up to date.

Timeline

Registration guide

For most brands, the first question is whether they need to register directly or work through a marketplace that is already registered. If the brand operates its own direct-to-consumer flow into Korea, or if it needs more control over customs data submission, direct registration as an e-commerce operator should be considered.

Before starting

The KCS overseas e-commerce portal allows companies to sign up, apply for an e-commerce business code, and then apply for API usage after approval. If the company does not yet have an e-commerce business code, the code application is completed as part of the sign-up flow for a company representative.

Step-by-step registration process

1. Go to the overseas e-commerce portal and click Sign Up. The portal supports separate registration flows for a company representative and for company staff.
2. Choose “Company & Representative.” This is the correct route for the first registration of a business.
3. Accept the terms and privacy notices. KCS requires agreement to proceed with registration.
4. Verify the representative email address. KCS sends an authentication code by email, and that code must be entered to move forward.
5. Enter user account information. This includes the company name, contact name, user ID, and password.
6. Apply for the e-commerce business code if the company does not already have one. This is the key business registration step for the customs platform.
7. Wait for customs review and approval. KCS has indicated approval may take up to 10 days.
8. After approval, apply for e-commerce API access if direct system integration is needed. The portal includes a separate E-Commerce API Management section for this.

Key information needed for registration

KCS requires a mix of business details, representative details, website details, and supporting documents.

Business information

• Business registration number.
• Country code.
• Zip code and business address.
• Phone number and, if available, fax number.
• Main business type and sub-business type.
• Optional identifiers such as D-U-N-S number and LEI number.
• Business manager email.

Representative information

• Representative name.
• Representative date of birth.
• Representative email for authentication and account setup.

Website or selling-channel information

• Domain type, such as direct operation site or third-party seller/vendor.
• Website name.
• Website URL.

This part is important because KCS wants to know where the business is actually selling online and whether it is selling through its own website or a third-party platform.

Required supporting documents

For overseas companies, KCS requires at least these two documents during the business code application.

• Domain Registration Certificate.
• Business Registration Certificate issued by the country of residence.

The guide lists multiple accepted file types, including PDF and common office file formats.

What happens after registration

Once approved, the business can view its e-commerce business code details, print a registration certificate, and later request corrections or renewal through the KCS portal. Renewal becomes available 90 days before expiration, and corrections can be submitted if company details, website information, or other registration details change.

If the brand wants a direct system connection, it can apply for e-commerce API access through the portal after approval. The portal shows available services such as transaction information submission and PCCC validation, and once API use is approved, the system provides a client ID and a secret key that technical teams must store securely.

Suggested decision path for brands

Not every brand needs to build its own customs connection, so the best path depends on operating model.

• Marketplace-first brand: Confirm whether the marketplace is registering as the e-commerce operator and handling customs connectivity.
• Brand with own D2C store: Consider direct registration that can support KCS data submission.
• Low Korea volume brand: Start by checking whether existing shipping partners can handle the required compliance steps before investing in direct integration.
• High Korea volume brand: Direct registration and strong data controls are more likely to be worthwhile because delivery reliability and customs speed matter more at scale.
  
  
  

Action to take now

• Review whether Korea shipments are sent through your own store or a marketplace.
• Update checkout flows for Korea to capture complete and structured customer identity data.
• Prepare customer service messaging so Korean shoppers understand why PCCC and OTP may be required.
• If direct registration is needed, gather business certificates, domain documents, and representative information before starting the KCS portal application.

Reference Material:

PCCC FAQ from Korea Customs Service

Last Updated On 15 Jul 2026