Korea tax guide
Permanent Establishment in Korea for Foreign Companies
Income Tax
Who this guide is for
- Foreign companies with employees or contractors in Korea
- Overseas businesses testing the Korean market
- Companies using Korean agents, distributors, or coworking space
- Remote-work and global mobility teams
Quick Answer
A foreign company may create a Korean permanent establishment through a fixed place of business, certain construction or service activity, or a person acting for the company, depending on Korean domestic law and the applicable tax treaty. A subsidiary, coworking desk, home office, employee, or agent does not produce the same answer in every case. The company should map premises, people, authority, contracts, duration, cost, and treaty wording before concluding that it has no Korean filing duty.
Key points
- Domestic-law business-place rules and treaty PE rules must both be checked.
- Fixed-place, construction, service, and dependent-agent routes can differ by treaty.
- Contract negotiation and conclusion authority are important facts.
- A Korean subsidiary is not automatically the foreign parent's PE, but its activities must be examined.
- PE can affect corporate tax, profit attribution, payroll, VAT, registration, and documentation.
Step-by-step explanation
Map every Korean connection
List offices, desks, warehouses, project sites, customer premises, employee homes, servers, agents, distributors, and affiliates used by the foreign company. Record duration, access, control, business purpose, and which activities occur at each location.
Map authority and contracts
Document who identifies customers, negotiates essential terms, approves discounts, signs contracts, delivers the service, and manages after-sales obligations. Formal signature overseas may not tell the full story if the Korean person repeatedly drives contracts to completion.
Apply domestic law and the specific treaty
Test Korean business-place rules, then the treaty’s PE article, including any fixed-place, preparatory or auxiliary, construction, service, and agent provisions. Check anti-fragmentation or related-enterprise facts where relevant. Do not transplant a threshold from another country’s treaty.
Assess consequences and controls
If PE risk exists, quantify the profits potentially attributable to Korean functions, assets, and risks and review registration, returns, bookkeeping, withholding, payroll, VAT, and transfer pricing. If the conclusion is no PE, keep the factual analysis and create operating limits that personnel can follow.
Documents you may need
- Applicable tax treaty
- Korean office, coworking, home-office, and project arrangements
- Employee and contractor job descriptions
- Contract negotiation and signature workflow
- Agent or distributor agreements
- Travel and project-duration calendar
- Intercompany charges and transfer-pricing records
- Korean customer contracts and invoices
Common mistakes
- Assuming no leased office means no PE
- Treating every independent contractor as risk-free
- Ignoring employee authority and repeated contract negotiation
- Using a generic 183-day rule for every PE question
- Reviewing corporate tax without payroll, VAT, and registration consequences
When should you ask a tax professional?
Ask a qualified tax professional if you have income from several countries, business income, unclear tax residency, treaty questions, missing documents, late filing concerns, or a visa situation that depends on tax records. This site explains general patterns only and cannot review your personal facts.
FAQ
Does one remote employee create a Korean permanent establishment?
Not automatically, but the home-office facts, permanence, business need, employer control, activities, and treaty wording should be reviewed rather than dismissed by headcount.
Is a Korean subsidiary automatically the foreign parent's PE?
No. Separate legal existence alone does not establish PE, but the subsidiary's premises, authority, and activities for the parent can still create risk.
Does staying under 183 days prevent PE?
Not as a universal rule. Some treaties use duration tests for specific service or construction provisions, while fixed-place or agent PE can depend on other facts.
Official Sources to Verify
Tax rules and filing procedures in Korea may change depending on your visa status, income type, tax residency, and the tax year. Before making a tax decision, always verify your situation with official sources or a qualified professional.