However, before any of those decisions are finalized, there is one fundamental question that should be answered first:

What business activities will the Korean subsidiary actually perform?

The answer is important because every Korean company must be assigned an industry classification and business code.

In practice, this classification will be reflected in:

• the Foreign Investment Report;
• the business purposes recorded in the corporate registry;
• the business registration filed with the National Tax Service; and
• various regulatory and tax filings throughout the life of the company.

Although many companies view the classification process as an administrative formality, it can have significant legal, regulatory, and tax implications.

Why Industry Classification Matters

Based on our experience assisting foreign-invested companies in Korea, industry classification often affects three key areas.

1. Business Licenses and Regulatory Requirements

Certain industries require additional licenses, registrations, or permits beyond the standard incorporation and tax registration procedures.

For example, companies performing construction work are generally required to register as a construction business and satisfy specific requirements relating to:

• minimum capital;
• qualified engineers; and
• office facilities.

However, a company that merely provides engineering consulting, project management, or equipment supply services may fall under a different industry category and be subject to entirely different requirements.

Selecting the correct industry classification from the outset helps avoid unexpected regulatory issues and unnecessary compliance costs.

2. How the National Tax Service Evaluates Your Company

The Korean National Tax Service (NTS) relies heavily on automated data analysis.

One of the first data points used in that analysis is the company’s registered industry code.

If the registered code does not accurately reflect the company’s actual activities, several issues may arise:

• The company may be expected to comply with obligations that do not apply to its business.
• It may be questioned regarding requirements that have already been satisfied.
• It may be compared against an inappropriate peer group.

For example, a company generating a normal operating margin of 3% may be compared with businesses in an industry where a 15% margin is common. In such cases, the tax authorities may ask the company to explain why its reported profitability appears unusually low.

3. Tax Benefits and Special Tax Rules

Industry classification can also affect the application of Korean tax incentives and special tax provisions.

Examples include:

• Qualification as a Small and Medium-sized Enterprise (SME);
• Eligibility for certain tax credits and tax reductions;
• Application of special provisions under the Restriction of Special Taxation Act; and
• Eligibility for the 0% VAT rate on certain services provided to foreign companies.

In other words, an incorrect classification may impact not only compliance requirements but also the tax benefits available to the company.

A Common Mistake: Using the Parent Company’s Industry

One mistake we frequently see is foreign groups simply describing the Korean subsidiary in the same way as the parent company.

Consider a U.S. software company.

The parent company may develop software products, own intellectual property, and sell software directly to customers worldwide.

However, the Korean subsidiary may:

• provide sales support services;
• conduct marketing activities;
• communicate with Korean customers; and
• receive a service fee from the parent company under a cost-plus arrangement.

In that situation, the Korean subsidiary is generally not engaged in software development or software sales.

Instead, it is often classified under a business support service category.

The key principle is straightforward:

Industry classification should be based on what the Korean subsidiary actually does, not on what the parent company does.

Questions to Ask Before Selecting an Industry Code

Before incorporating a Korean subsidiary, we generally recommend addressing the following questions:

Who will sign contracts with Korean customers?

Who will issue invoices to Korean customers?

Where will revenue be generated?

What activities will Korean employees actually perform on a day-to-day basis?

Will any licenses, registrations, or permits be required?

The answers often provide a clear indication of the most appropriate industry classification.

Final Thoughts

Industry classification may appear to be a minor administrative step during the incorporation process. In reality, it can influence licensing requirements, regulatory obligations, tax reporting, and eligibility for various tax benefits.

For that reason, foreign investors should evaluate the Korean subsidiary’s actual business activities and operating model before selecting an industry classification.

In our experience, companies that spend time getting this right during the planning stage can avoid significant compliance and tax issues later as their Korean operations grow.

Key Takeaway

When determining the industry classification of a Korean subsidiary, focus on what the Korean entity will actually do, not on the business activities of the parent company.

This article uses a practical example to illustrate how financial statement impacts can differ depending on whether a company follows:

• the Cash Settlement Method; or
• the Accrual Accounting Method.

Although both approaches may ultimately result in the same total expense over the employee’s service period, the timing of expense recognition and liability recognition can differ significantly.

Example

Assumptions

• One employee joined the company on January 1, 2023
• Ordinary daily wage:
  • 2023: KRW 200,000
  • 2024: KRW 300,000
  • 2025: KRW 400,000
• 15 days of annual leave are granted on January 1 of the following year based on the employee’s service during the preceding year.
• During 2024:
  • 9 days used
  • 6 days unused
  • Unused leave compensated in February 2025
• During 2025:
  • 10 days used
  • 5 days unused
  • Unused leave compensated in February 2026
• The employee resigns on October 31, 2026
• Before resignation, the employee uses 12 days of annual leave
• Remaining annual leave is compensated through the final payroll upon termination

Expense Table

Comparing the Two Methods

Key Observation

Many companies focus only on annual leave compensation payable.

However, from a financial reporting perspective, a more important question is:

Have the obligations arising from employee service already been reflected in the financial statements?

This is the fundamental difference between the Cash Settlement Method and the Accrual Accounting Method.

Key Takeaway

Over the employee’s entire service period, both methods ultimately recognize the same total cost.

However, companies adopting the Cash Settlement Method may understate annual leave-related liabilities and expenses in certain reporting periods.

For companies preparing audited financial statements, management should ensure that annual leave obligations are evaluated not only from a labor law perspective but also from an accrual accounting perspective.

This distinction becomes particularly important for foreign companies that report under K-IFRS or group reporting frameworks that emphasize accurate liability recognition and period matching.

Under the Korean Labor Standards Act, employees are generally entitled to 15 days of paid annual leave per year.

If employees fail to use their annual leave within the prescribed period, the employer may be required to compensate them in cash for the unused portion.

For this reason, many companies view annual leave primarily as an HR or labor law issue.

However, from the perspective of a foreign company’s Finance Team, annual leave can significantly affect several areas, including:

• Payroll
• Tax reporting
• Social insurance contributions
• Retirement pension plans
• Financial statements

Therefore, annual leave is not only an HR matter but also an accounting and finance issue.

1. Key Considerations When Paying Unused Annual Leave Compensation

(1) Accounting Treatment

Unused annual leave compensation is generally recorded as Salary Expense or a related employee compensation account based on the company’s accounting policy.

In practice, some companies also maintain a separate account such as Annual Leave Expense for internal reporting purposes.

(2) Tax and Social Insurance Implications

Unused annual leave compensation is generally treated as employment income.

Accordingly, the following items typically arise upon payment:

• Withholding of employment income tax
• Withholding of local income tax
• Deduction of the employee’s share of social insurance contributions
• Recognition of the employer’s share of social insurance contributions as an expense

Therefore, the payment of unused annual leave is not merely a cash payment to employees. It also has payroll tax and social insurance implications.

(3) Impact on Retirement Pension Plans

This is one of the areas often overlooked by foreign companies.

DB Plans

Unused annual leave compensation may affect the calculation of the employee’s average wage, which in turn may impact severance benefit calculations.

DC Plans

In general, unused annual leave compensation may be included in the compensation base used to determine employer contributions to the DC retirement pension plan.

However, in practice, it is important to distinguish between:

1. Unused annual leave compensated because the usage period has expired; and
2. Unused annual leave compensated due to an employee’s resignation or termination before taking the leave.

Companies operating a DB retirement pension plan should verify with the Payroll or HR Team why the unused annual leave compensation arose, as annual leave compensation paid solely due to termination may not be included in the base used for calculating DB retirement pension obligations.

2. Annual Leave Accruals at Year-End

The area where misunderstandings most frequently arise is accounting treatment.

Many companies recognize a liability only for annual leave compensation that is expected to be paid.

However, from an accrual accounting perspective, a different approach may be required.

Two Concepts That Should Be Distinguished

Companies should distinguish between the following two concepts:

① Unused Annual Leave Compensation Payable

The current obligation to compensate employees for unused annual leave.

② Annual Leave Accrual

The future obligation that gradually accumulates as employees provide services during their employment period.

Many companies treat these concepts as identical, but they may be significantly different from an accounting perspective.

What Does Year-End Annual Leave Liability Typically Consist Of?

At year-end, the annual leave-related liability generally consists of two components:

1. Unused Leave Already Granted

For example, annual leave granted at the beginning of the year that remains unused at year-end.

2. Future Leave Earned Through Current-Year Service

The obligation arising from services already rendered by employees during the current year, which will result in annual leave being granted in the following year.

In other words, from an accrual accounting perspective, a company may need to consider not only currently unused annual leave but also the future leave benefits earned through services already provided by employees.

Why Is Accrual Accounting Important?

If accrual accounting is not applied, annual leave-related expenses may only be recognized when unused leave is settled in cash.

Under accrual accounting, however, the expense is recognized over the period during which employees render their services.

While the total expense recognized over the long term may ultimately be the same under both approaches, the key difference is which accounting period reflects the expense in the financial statements.

Common Issues Identified in Practice

During financial statement audits, the following issues are frequently observed:

• Failure to recognize annual leave accrual liabilities
• Confusion between annual leave compensation payable and annual leave accruals
• Inconsistent accounting policies from year to year
• Differences between HR records and accounting records

These issues may result in audit adjustments or requests for additional explanations and supporting documentation.

Key Takeaway

Annual leave is not simply a matter of leave administration.

Unused annual leave can affect:

Payroll

Tax reporting

Social insurance contributions

Retirement pension plans

Severance calculations

Financial statements

Accordingly, companies should not focus solely on annual leave compensation payable.

They should also consider whether:

“All obligations and liabilities relating to annual leave have been properly reflected in the financial statements.”

Proper management of annual leave is not only an HR compliance issue. It is also an important component of accurate financial reporting and sound accounting practices.

Foreign companies operating in Korea are often familiar with payroll taxes and social security systems in their home jurisdictions. However, the Korean social insurance system has several unique features that can create practical challenges for payroll administration and accounting.

The Korean social insurance system consists of four major programs:

• National Pension
• National Health Insurance (including Long-Term Care Insurance)
• Employment Insurance
• Workers’ Compensation Insurance

Although social insurance contributions are technically different from taxes, many employees perceive them as deductions similar to taxes because they reduce the employee’s net pay each month.

From a legal perspective, however, these are insurance programs under which both employers and employees contribute premiums in exchange for future social security benefits.

How Social Insurance Contributions Are Collected

Social insurance contributions generally consist of:

• Employer contributions
• Employee contributions

Contribution notices are typically issued between the 20th and 25th of each month and must generally be paid by the 10th day of the following month.

One feature that often surprises foreign companies is that the monthly contribution amount is usually not based on the employee’s actual salary for that month.

Instead, the contribution is generally calculated based on a predetermined salary base amount.

As a result, the monthly contribution amount often remains relatively unchanged throughout the year except for:

• New hires
• Terminations
• Periodic adjustments by the relevant authorities

For continuing employees, the contribution base is generally determined using the employee’s compensation information from the preceding year.

Any difference between:

• The actual compensation earned during the current year; and
• The compensation base used for contribution purposes

is subsequently adjusted through a reconciliation process, typically in the following year.

Why This Creates Practical Challenges

For companies with fixed monthly salaries, these reconciliation differences are often insignificant.

However, many foreign-invested companies operate compensation programs that include:

• Sales commissions
• Performance bonuses
• Incentive payments
• Variable compensation arrangements

In these situations, monthly payroll costs can fluctuate significantly throughout the year, resulting in larger social insurance reconciliation adjustments.

This leads to several practical questions regarding payroll processing and accounting treatment.

Question 1: What Amount Should Be Reflected in Monthly Payroll Calculations?

When calculating employees’ net pay, companies generally adopt one of two approaches.

Approach 1: Contribution Notice Method

Under this approach, the employee portion of the social insurance contribution is based on the amount billed by the relevant social insurance authorities.

This is often the simplest administrative method because:

Employee deductions agree with the monthly contribution notice.

The contributions withheld from employees can be easily reconciled to the amount payable.

However, year-end and subsequent-year adjustments may become more significant because variable compensation is not fully reflected in monthly deductions.

Approach 2: Calculated Contribution Method

Under this approach, the company calculates social insurance contributions each month by taking into account both fixed and variable compensation and applying the applicable statutory rates.

Advantages include:

Better matching between payroll expense and social insurance cost.

Earlier recognition of social insurance obligations associated with variable compensation.

Easier reconciliation of subsequent-year adjustment notices.

The downside is that:

Monthly payroll deductions and accounting accruals may not agree with the actual bill issued by the social insurance authorities.

Additional reconciliations are required each month.

Question 2: How Should Companies View Subsequent-Year Reconciliations?

Companies using the Contribution Notice Method often encounter another challenge.

Since social insurance adjustments relating to commissions, bonuses and other variable compensation are settled in the following year, management may ask:

• How can we verify that the adjustment amount is correct?
• Should the adjustment be recognized as a current-year expense?
• Is the timing of expense recognition appropriate from an accounting perspective?

These questions frequently arise during audits and financial statement reviews.

Question 3: How Should Monthly Reconciliations Be Managed?

The Calculated Contribution Method may be more consistent with accrual-based accounting principles because social insurance costs are recognized in the same period as the related payroll expense.

However, this approach creates a different challenge.

Since:

• Accounting accruals; and
• Actual contribution notices

are not identical,

companies must maintain a reconciliation process to track and explain the differences each month.

Without a systematic reconciliation process, account balances can easily become unclear over time.

There Is No Single Right Answer

In our experience, neither method is necessarily right or wrong.

The preferred approach often depends on the company’s circumstances.

Contribution Notice Method May Be Appropriate When:

• Headcount is relatively small
• Variable compensation is not significant
• Administrative simplicity is a priority

Calculated Contribution Method May Be Appropriate When:

• Variable compensation is material
• Headcount is relatively large
• Management prefers stronger matching between payroll expense and related social insurance costs

The key is not which method is selected.

The key is that the approach should be applied consistently and supported by a well-documented reconciliation process.

Why Reconciliation Matters

Regardless of the method adopted, timing differences between:

• Payroll recognition
• Social insurance billing
• Social insurance settlement

cannot be completely eliminated.

Therefore, companies should understand the mechanics of the Korean social insurance system and perform periodic reconciliations of related accounts.

In practice, we frequently encounter companies where social insurance-related accounts contain unexplained balances because:

• Reconciliations were not performed;
• Different approaches were applied inconsistently; or
• Subsequent-year adjustments were not properly tracked.

These issues can ultimately result in:

• Audit adjustments;
• Requests for additional supporting documentation; or
• Reduced confidence in account balances.

Key Takeaway

The Korean social insurance system is often unfamiliar to foreign management teams because contribution billing, payroll recognition and year-end reconciliations do not always occur in the same period.

Understanding how the system operates is essential not only for payroll processing but also for accurate accounting and financial reporting.

The most important objective is not necessarily choosing the “correct” method, but rather ensuring that the company understands the underlying mechanics, applies a consistent policy, and maintains an effective reconciliation process throughout the year.

However, one of the most important decisions is frequently overlooked at the beginning of the project:

Selecting the company’s registered office address.

In practice, the office address is not simply an administrative detail. It can affect the overall establishment timeline, the preparation of incorporation documents, and even the ability to obtain a business registration.

Typical Steps in Establishing a Korean Subsidiary

The incorporation process generally follows the sequence below:

1. Execute a lease agreement for the registered office
2. Prepare documents relating to the parent company and directors
3. Submit a Foreign Investment Report to the designated foreign exchange bank
4. Remit investment capital in accordance with the Foreign Investment Report
5. Complete corporate registration under the Korean Commercial Code
6. Obtain business registration from the tax office
7. Open a corporate bank account
8. Transfer the capital into the newly established bank account

From a practical perspective, the registered office is one of the first items that should be finalized before many of the subsequent steps can begin.

Why the Office Address Must Be Decided Early

Many foreign investors are surprised to learn how early the office address must be finalized.

This is because various supporting documents prepared by the parent company and directors often require the Korean subsidiary’s registered address to be clearly stated.

These documents may need to be:

• Notarized;
• Apostilled; and
• Prepared in the country where the parent company is located or where the directors reside.

If the office address changes after these documents have been prepared, additional time and costs may be incurred to revise and re-execute the documentation.

For this reason, the office location should ideally be determined before the parent company begins preparing incorporation documents.

Registered Address and Actual Business Address

Another important point that foreign companies should understand is that, in principle, the registered address and the actual place of business should be identical.

Unlike some jurisdictions where companies may freely separate their registered office and operating location, Korean tax authorities generally expect the registered address to reflect the actual business location.

Failure to maintain consistency may create tax and compliance issues, including potential administrative penalties.

Shared Office Solutions: Practical but Not Always Risk-Free

Many newly established foreign subsidiaries initially use a serviced office or virtual office arrangement.

This approach is often practical because:

• No employees may be located in Korea initially;
• The company wishes to minimize fixed costs;
• Permanent office space has not yet been selected.

While shared office providers can be useful for corporate registration purposes, directors should be aware that the tax office may scrutinize whether genuine business activities are being conducted at the registered address when reviewing the business registration application.

In certain cases, business registration may be delayed or denied if the tax office concludes that the address does not adequately support the proposed business activities.

Certain Industries Have Additional Office Requirements

Address selection becomes even more important for specific business sectors.

Some regulated industries require the business premises to satisfy particular conditions regarding:

• Building use classification;
• Minimum office area;
• Lease agreement terms;
• Physical facilities and operational requirements.

Examples may include:

• Entertainment management companies;
• Travel agencies;
• Certain real estate-related businesses; and
• Other regulated industries.

Therefore, the proposed business activities should always be reviewed before signing a lease agreement.

An address that is acceptable for one type of business may not satisfy the requirements applicable to another industry.

Practical Recommendations

Based on our experience supporting foreign-invested companies in Korea, we generally recommend:

Finalizing the office address before the parent company prepares corporate documents

Confirming whether the proposed business activities have any location-specific requirements

Reviewing whether a shared office arrangement is acceptable for both incorporation and business registration purposes

Ensuring that the registered address reflects the company’s actual place of business

Address-related issues are among the most common causes of delays during the incorporation process and can usually be avoided through proper planning.

Looking Ahead: Capital Remittance Planning

Address selection is only one of several practical considerations that should be reviewed before establishing a Korean subsidiary.

In our next article, we will discuss another commonly overlooked area:

Capital Remittance Planning for Korean Subsidiaries

including:

• When the investment capital should be remitted
• Which bank account should receive the funds
• Common mistakes made during remittance
• How capital transferred before incorporation is ultimately moved into the subsidiary’s bank account after establishment

Many multinational companies prefer to use the same banking platform across all jurisdictions in which they operate.

Global treasury teams often want to maintain centralized visibility and control over cash management, payment approvals, and internal control procedures. For this reason, global banking networks such as Bank of America, J.P. Morgan, HSBC and Citi are frequently used for Korean subsidiaries and branch offices.

From a treasury and governance perspective, this approach makes perfect sense. It allows payment approvals to be monitored and controlled by the headquarters treasury team while maintaining consistency with global policies.

However, practical challenges often arise when foreign companies attempt to operate in Korea using only foreign banks.

Understanding the Limitation

Unlike Korean domestic banks, many foreign banks in Korea operate through Seoul branches rather than full local banking entities.

As a result, certain banking services commonly available through Korean banks may not be available or may involve additional administrative procedures.

Citibank Korea is a notable exception because it acquired KorAm Bank and operates in a manner largely comparable to Korean domestic banks.

For most other foreign banks operating through Seoul branches, companies may encounter several practical limitations.

Practical Challenges Frequently Encountered

1. No Automatic Debit for Social Insurance Contributions

In many cases, companies cannot register automatic monthly withdrawals for the four major social insurance programs.

As a result, payroll administrators must manually process payments every month, increasing administrative effort and the risk of missed payments.

2. Tax Payments Cannot Be Processed Seamlessly Through Korean Tax Portals

Companies using foreign bank accounts may find it difficult to retrieve tax payment information and settle taxes directly through Korean tax portals using their bank accounts.

This often results in additional administrative work during monthly and annual tax filing periods.

3. Receiving Tax Refunds Can Be Surprisingly Complicated

One of the most inconvenient issues arises when the company becomes entitled to a Korean tax refund.

In certain cases, the National Tax Service may not be able to transfer the refund directly to a foreign-bank account.

Instead, the company may need to:

• Receive the refund notice by mail;
• Gather corporate documents;
• Visit a local post office;
• Collect the refund in cash; and
• Remit the cash proceeds back into the company’s bank account.

While the process is manageable, it creates unnecessary administrative burden and consumes valuable management time.

4. Digital Certificate Procedures Can Be More Complicated

Many Korean tax, social insurance and government portals still require digital certificates for access and filing purposes.

The process for obtaining and managing these certificates is generally more straightforward when the company maintains an account with a Korean local bank.

Companies relying exclusively on foreign bank accounts may face additional procedures and administrative complexity.

The Hidden Cost Is Not the Bank Fee

When selecting a banking partner, foreign companies often focus on banking fees, cash visibility, foreign exchange services, and treasury controls.

However, in practice, the hidden cost is frequently the additional administrative effort required to deal with local compliance procedures.

These costs are not always visible during the initial setup phase but can become significant over time.

A Practical Solution

Based on our experience, many foreign companies achieve the best balance by adopting a dual-bank approach.

Under this arrangement:

• The primary banking relationship remains with the group’s preferred global bank;
• Headquarters treasury teams continue to utilize existing approval and control processes; and
• A secondary account is maintained with a local Korean bank to handle domestic administrative matters.

The local account can be used for:

• Social insurance payments;
• Tax payments;
• Tax refunds;
• Digital certificate issuance and maintenance; and
• Other Korea-specific compliance requirements.

This approach often reduces administrative burden while maintaining the benefits of centralized treasury control.

Our Recommendation

When establishing a Korean subsidiary or branch, companies should evaluate not only treasury requirements but also the practical administrative aspects of operating in Korea.

Where permitted by headquarters policies and internal systems, we generally recommend maintaining both:

A global bank account for treasury management and reporting; and

A local Korean bank account for administrative and compliance purposes.

In our experience, this combination provides the most efficient operating model for many foreign companies doing business in Korea.

Under this model, products and services are sold directly by the parent company to customers worldwide, while local entities perform supporting functions such as sales support, customer relationship management, marketing coordination, and business development activities.

As a result, the local entity does not generate revenue from local customers. Instead, it earns service income from the parent company for the support services it provides.

One of the most common approaches for compensating the local entity is a cost-plus fee arrangement.

Under this arrangement, the Korean subsidiary (or branch) charges the parent company for its operating costs plus an arm’s length profit margin.

This model is widely used because it:

• Provides funding for local operations
• Simplifies profit allocation
• Allows the local entity to fulfill its minimum tax compliance obligations in Korea
• Can facilitate transfer pricing compliance when an appropriate markup is determined based on transfer pricing principles

Typical Tax Considerations in a Cost-Plus Structure

When a Korean entity operates under a cost-plus arrangement, the following tax issues are commonly discussed:

Permanent Establishment (PE) Risk

Multinational groups often need to assess whether the activities performed by the Korean entity could create a permanent establishment for the foreign parent company in Korea.

Transfer Pricing Issues

The mark-up applied to the cost base must generally be consistent with the arm’s length principle and supported by appropriate transfer pricing documentation.

However, these risks are not unique to a cost-plus structure.

In practice, there is no business model that completely eliminates tax risk. Companies must balance commercial objectives, operational efficiency, and tax considerations when designing their operating structure.

The Often Overlooked Issue: VAT Treatment of the Cost-Plus Fee

One important issue is frequently overlooked during the setup phase.

Should the Korean entity charge 10% VAT or apply the 0% VAT rate when invoicing the parent company?

This question is critical because an incorrect VAT treatment can create significant financial exposure over time.

Many companies assume that a service provided to an overseas parent company automatically qualifies for the 0% VAT rate.

Unfortunately, this assumption is not always correct.

Conditions for Applying the 0% VAT Rate

Under the Korean VAT Law, a Korean company may apply the 0% VAT rate to service fees charged to a foreign customer only when all relevant requirements are satisfied.

The following conditions are generally required:

Condition 1

The recipient of the service must be a non-resident (including a foreign corporation) that does not have a permanent establishment in Korea.

Condition 2

The services must be provided in Korea.

Condition 3

The consideration must be paid in foreign currency such as USD, EUR, or GBP.

Condition 4

The recipient’s country must provide an equivalent tax benefit to Korean residents or Korean corporations.

This is commonly referred to as the reciprocity principle.

The requirement may be satisfied if:

• Similar zero-rating rules exist in the recipient’s jurisdiction, or
• There is no equivalent indirect tax system (such as VAT or sales tax) in that jurisdiction.

The Practical Challenge: Proving Reciprocity

In our experience, the reciprocity requirement is one of the most frequently overlooked conditions when applying the 0% VAT rate to services provided to foreign companies. Before issuing a tax invoice at the 0% VAT rate, it is advisable to confirm that all statutory requirements, including the reciprocity requirement, have been satisfied.

Korean tax professionals generally cannot independently verify foreign tax laws in every jurisdiction.

Therefore, the Korean entity should obtain supporting documentation from:

• The foreign parent company
• The parent company’s tax advisors
• Legal or tax professionals in the foreign jurisdiction

The supporting documentation should clearly explain the applicable foreign tax provisions and should be retained as evidence for Korean VAT compliance purposes.

An Issue Frequently Discovered Too Late

From my experience supporting foreign-invested companies in Korea, I have occasionally encountered situations where the VAT treatment of a cost-plus arrangement had never been properly reviewed.

The Korean entity proceeded on the assumption that the 0% VAT rate automatically applied because the services were provided to a foreign parent company.

However, upon closer review, the reciprocity requirement was not satisfied.

As a result, the Korean entity should have charged 10% VAT on the service fee.

Discovering this issue years later can create substantial VAT exposure and unexpected costs for the multinational group.

Review the VAT Position Before Establishing the Korean Entity

When setting up a Korean subsidiary or branch, multinational groups usually focus on:

• Corporate structure
• Transfer pricing
• Employment matters
• Funding arrangements

However, the VAT treatment of intercompany service fees should also be reviewed before operations begin.

Companies considering a cost-plus fee arrangement should confirm:

How operating costs will be funded

Whether a cost-plus model is appropriate

Whether the 0% VAT rate is available

What supporting documentation is required

Addressing these issues early can help prevent costly VAT exposures and compliance challenges in the future.