Korea tax guide
Korean Tax on Overseas Real Estate for Foreign Residents
Income Tax
Who this guide is for
- Foreign residents in Korea who own a home abroad
- Expats receiving overseas rent
- Foreign residents selling inherited or former-home property
- Taxpayers claiming relief for foreign property tax or income tax
Quick Answer
A foreign resident of Korea may need to report overseas rental income or a foreign property sale in Korea under worldwide-income rules, while a non-resident generally focuses on Korean-source income. The answer can change for certain short-term foreign residents and under a tax treaty. Rental income, deposits, expenses, depreciation, sale gains, foreign tax, and exchange rates must be calculated separately.
Key points
- Establish Korean residence and limited foreign-resident status for the relevant year.
- Rental income and a property sale follow different calculation and filing paths.
- Convert income, expenses, basis, sale proceeds, and foreign tax using supportable dates and rates.
- Only qualifying foreign income tax supports an income-tax credit; annual property tax may differ.
- Foreign bank account or asset reporting can be separate from income reporting.
Step-by-step explanation
Fix the residence scope first
Prepare a year-by-year Korean residence timeline. Note domicile, occupation, family, housing, days, nationality, and the total Korean residence period relevant to the limited foreign-resident rule. If another country also claims residence, apply the treaty tie-breaker before assuming which return has priority.
Build a rental schedule
Record gross rent, refundable and non-refundable deposits, vacancies, management fees, repairs, insurance, local taxes, mortgage interest, and depreciation. Keep personal-use periods separate. Reconcile the schedule to foreign bank and property-manager statements.
Calculate a sale independently
Preserve original cost, acquisition expenses, capital improvements, depreciation history, sale price, and selling expenses. The foreign country’s taxable gain may not equal the Korean gain because basis, exemptions, and exchange rates can differ.
Claim relief with the right evidence
Match foreign tax to the same income and year reported in Korea. Keep the final foreign assessment and proof of payment, not only withholding or an estimate. If the foreign return changes later, review whether the Korean credit or return also needs correction.
Documents you may need
- Purchase and sale contracts
- Foreign closing statements and legal fees
- Rental agreements and property-manager statements
- Mortgage interest, repair, insurance, and tax records
- Depreciation schedule and improvement invoices
- Foreign income-tax return and payment evidence
- KRW exchange-rate workpaper and residence timeline
Common mistakes
- Reporting only cash remitted to Korea without reviewing residence rules
- Netting a property sale into annual rent
- Using one year-end exchange rate for every transaction without support
- Claiming annual property tax as a foreign income tax credit
- Losing historical basis and improvement records
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
Do I report overseas rent in Korea if I leave it abroad?
A Korean resident may need to report worldwide income even without a transfer. Certain short-term foreign residents have a special foreign-source-income rule that requires careful remittance tracing.
Can I claim a Korean credit for foreign property taxes?
A foreign tax credit generally requires a qualifying foreign income tax. Ownership-based property tax, transfer charges, and other levies may instead affect expenses or basis, if allowed.
How do I convert a foreign property sale to Korean won?
Track acquisition cost, improvements, sale proceeds, expenses, and foreign tax with the relevant transaction dates and a consistent, documented exchange-rate method.
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.