The Penalty
Why Non-Residents Pay 2-3× More Korean Inheritance Tax
In Brief
If the decedent was a Korean non-resident at death — even with Korean citizenship — the estate loses the ₩500M lump-sum deduction and the spousal deduction. A ₩2.5B estate that would owe ~₩314M as a resident owes about ₩760M as a non-resident.
What "Non-Resident" Means
Under the Korean Inheritance and Gift Tax Act, the decedent's residency at death determines the deductions. A "resident" has a domicile in Korea or stayed 183+ days in the past year. Citizenship is not the test. A Korean-American who lived in Los Angeles for 30 years is a non-resident even with a Korean passport.
The Deduction Gap
| Deduction | Resident | Non-Resident |
|---|---|---|
| Basic deduction | ₩200M | ₩200M only |
| Lump-sum deduction | ₩500M | Not available |
| Spousal deduction | Up to ₩3B | Not available |
| Personal / minor / disabled | Available | Not available |
Worked Example: ₩2.5 Billion Estate
Resident decedent (apartment ₩1.5B + deposits ₩1B, spouse + 2 children): after lump-sum ₩500M + spousal deduction + funeral, taxable base ~₩914M → tax ~₩314M (12.56% effective).
Non-resident decedent (same assets, assumed died in the US): only the ₩200M basic deduction applies (no funeral-expense deduction), taxable base ₩2.3B → tax ~₩760M (30.4% effective).
Difference: ₩446M more — roughly 2.4× the resident case.
Why This Hits Korean-Americans
Many parents emigrated to the US decades ago, became US residents (and Korean non-residents), but kept Korean real estate or bank accounts. When they pass, their estates are taxed at the harsher non-resident rate — while the heirs also face US Form 706 obligations.
Can You Plan Around It?
For elderly Korean-American parents still owning Korean assets, options include lifetime gifting (₩50M per adult child per decade), genuine residency conversion 5-7 years before death, or selling Korean real estate during lifetime. Each requires both Korean and US tax planning.
General information only, not legal advice. Consult a licensed Korean CPA & Tax Accountant for your specific situation.