The company is registered. A first customer is ready to sign a pilot agreement and asks for an invoice with payment details. The founder visits a bank, carrying the business registration certificate, and discovers that the bank also needs to understand the company's owners and intended transactions.
That is a plausible point of friction even when the company has been properly established. Registration records the business. The bank must also verify its customer, the people authorised to act for it and the ownership behind it.
Preparing for that review is part of making the business operational. So is arranging online access, appropriate payment limits and any services needed to receive overseas money or accept customer payments.
Official guidance checked 22 September 2026. Confirm the current requirements with the bank and branch handling your application; they depend on the applicant, entity and services requested.
Tell the bank which business is applying
“A foreigner's business account” is too broad to describe every case.
For a sole proprietor, the individual owns and operates the business. The bank needs to understand both that person's identity and the business activity. Explain that you are seeking an account for an individual business, with the associated banking services.
For a Korean corporation, the account belongs to the company. The representative's identity matters, alongside the company's registration, ownership and authority for the application. A company with one shareholder still has this separate corporate identity. Our sole proprietor versus corporation guide explains the structural distinction.
A foreign-invested Korean company also needs to explain the relevant investment and funding history. Foreign-investment registration addresses an investment framework; it does not replace the bank's customer checks.
A Korean branch of a foreign company has a different establishment structure from a Korean subsidiary. Tell the bank that it is a branch and ask which parent-company, branch and representative records it needs. KOTRA's 2025 Guide to Establishing a Business in Korea explains these establishment routes and their different procedures.
Giving the bank this information before the visit helps it identify the appropriate process and staff.
Why the bank asks about people, purpose and money
The Korea Financial Intelligence Unit's customer due-diligence guidance explains the underlying checks. They include identifying the customer and, for legal entities, the individuals who ultimately own or control it. Further enquiries into transaction purpose and the source of funds can depend on the risk assessment.
An ownership question can therefore go beyond the name on the company's immediate shareholder list. If an overseas holding company owns the Korean corporation, the bank may need records tracing the ownership through that company to the relevant individuals.
KB Kookmin Bank's published customer-verification guidance specifically addresses this situation. It also explains that insufficient customer information can lead to a delay or refusal of a financial transaction.
Prepare a clear explanation of how the business expects to move money. Who will pay it? For what product or service? Which countries are involved? Will the initial balance come from a shareholder, an overseas parent or customer revenue?
Different answers may require different evidence. The bank's request for further information should identify what it needs to verify. Ask for that explanation if a document request is unclear.
Prepare before visiting the bank
Use the following as groups of material to discuss with the branch. The documents required within each group depend on your case.
1. Identity and authority. Confirm the accepted identification for the representative or proprietor. If someone else will apply, establish whether an agent is permitted and which authorisation documents are needed. Where applicable, ask about company seals, seal certificates and the authority of the person signing.
2. Business and corporate records. Be ready to provide the business registration certificate and, for a corporation, the relevant corporate registration records. Check whether originals, recently issued certificates or particular versions are required. Woori Bank's account-opening guide illustrates how identity, representative authority and agent documentation enter the process.
3. Ownership information. Prepare the shareholder or member records and an ownership diagram. For foreign-issued records, confirm any translation or certification requirements.
4. Evidence of business purpose. Explain what the company is going to do. Depending on the circumstances, relevant material could include a business plan, customer agreement, issued invoice, licence or financial records. KB's guidance gives examples of additional business evidence. A new company may have a plan and negotiations under way without having completed sales; explain that stage accurately and ask what evidence is appropriate.
5. Funding and investment records. Describe where the opening funds come from and how they will reach the business. Ask which remittance, investment or other funding documents the bank needs. Preserve the records linking the sender, purpose and recipient.
Send the branch a short description of the entity and intended activity before the appointment. Ask it to confirm the document list for both account opening and the other services you need. That can avoid a second visit caused by preparing only for the deposit account.
Choose a branch that can handle the actual work
Useful questions concern capability as much as location. Can the branch handle your entity type and foreign-ownership structure? Can it support the relevant language? Who will review the overseas documents or investment remittance? Does the representative need to attend in person?
Confirm these details directly. A bank's English website or personal-banking app does not establish the language and onboarding arrangements for every corporate service.
Branches may need additional information once they examine the case. Keep a record of what has been requested, who is handling it and which point remains unresolved. If language or preparation is making the process difficult, the services in our foreign-entrepreneur support guide may help you identify the right professional or prepare a clearer enquiry.
Set up online banking while you are there
An account number is only one part of everyday banking. You also need the right people to view transactions, initiate payments and approve them.
Hana Bank's business electronic-banking guide has separate enrollment requirements for corporations and individual businesses. Its document list concerns that electronic-banking service. It should not be treated as a universal checklist for opening any Korean business account.
Hana's corporate electronic-banking application and instructions, revised in February 2026, also show how user permissions, approval arrangements and authentication form part of setup.
Before leaving, establish:
- Which business website or app your entity will use, and the supported language.
- Which certificates, security device or OTP arrangements are required.
- Who can view accounts, prepare transfers and approve payments.
- The applicable transaction limits and how to request changes.
- How to export statements and obtain help if authentication stops working.
If a cofounder or finance employee will help with payments, ask about authorised user roles and approval controls. Set those up through the bank's system rather than sharing the representative's login or OTP credentials.
Also confirm eligibility before relying on remote onboarding. The availability of a digital service does not establish that every foreign representative or ownership structure can enroll through the same route.
Arrange overseas money movements before making them
The first overseas transfer may be investment capital, a shareholder loan or payment for an invoice. Describe its actual purpose to the bank. The documentation and relevant procedures can differ.
For incorporation funding, contact the handling bank early. KOTRA's 2025 establishment guide describes capital-remittance and capital-payment steps within the company-establishment process, before ordinary operating-account use. The Woori foreign-investment procedure similarly sets out investment notification, remittance and subsequent registration stages. Our business-establishment guide places those steps in the wider sequence.
For later incoming payments, obtain the receiving instructions from your bank. Check the beneficiary's registered English name, account details, bank and SWIFT information, intended currency and any information the sender should include. Woori's inbound-remittance guidance illustrates the information a sender may need.
Ask whether the payment will arrive in a foreign-currency account or be converted, how charges are applied and what supporting documents may be requested. A foreign-currency account gives you a way to hold or handle the currency; the purpose of the transfer still matters.
For outgoing transfers, discuss the intended payments and available channels. A founder paying an overseas software supplier and a company returning investment funds have different transactions to explain. Confirm the applicable documentation, reporting process, limits and fees with the bank before promising a payment date.
Cards and customer checkout need their own setup
A corporate card is an additional service with its own application and review. Woori's corporate-card guidance requests business and applicant evidence, including financial information. Ask about the available card type, payment arrangement and eligibility for your stage of business.
Customer payment acceptance involves another process. If you sell online, a payment gateway connects the checkout to payment methods and settlement arrangements. Toss Payments' official explanation describes merchant contracting, review and integration as parts of getting that service operational.
Check the payment provider's requirements for your business model, website, accepted payment methods and settlement account. Build time for its review and technical setup into the launch plan. Opening the bank account provides an important component, while customer checkout still requires its own work.
Make the account useful for accounting from the beginning
Keep business receipts and payments organised separately from personal spending. For a corporation, remember that the funds belong to the company. For a sole proprietor, a clear separation still makes it easier to identify the business activity and explain transactions.
Keep the supporting record with the transaction: the customer invoice, supplier document, payroll record or explanation of a shareholder transfer. Ask the accountant how those records should be stored and which evidence the relevant tax treatment requires. The Korean business-tax guide explains why bank activity and tax documentation need to be considered together.
Before using the account for a customer deadline, verify that the authorised person can access it, receive the intended payment, make necessary transfers and retrieve the records. Resolve any remaining limitation with the bank. The first invoice is much easier to send when those operational details have already been checked.
Cover: Business banking needs the right verification and controls before funds can move. Cover illustration created with AI for PIN Insights.