Inheritance, gift and capital gains for non-residents
In cross-border inheritance, gifts and property transfers, the outcome turns less on the size of the estate than on residency status and where the property sits. With the same assets and the same family, whether the decedent was a resident or a non-resident changes which deductions apply and can move the tax substantially. We establish that question first, then design the filing.
Who this is for
- Overseas Koreans and foreign nationals living abroad who hold Korean real estate, deposits or shares
- Families where a parent has died in Korea and all or some of the heirs live abroad
- The reverse case: a decedent living abroad who left property in Korea
- Anyone planning to gift Korean real estate or funds to children and needing to see how Korean and home-country tax overlap
- Non-residents about to sell Korean real estate who are unsure of the filing deadlines and procedure
- Anyone asked to explain the source of funds, or questioned about overseas remittances
The first fork is the scope of tax — resident or non-resident
The Inheritance Tax and Gift Tax Act divides the scope of inheritance tax by the status of the decedent: where the decedent was a resident, all inherited property worldwide is taxed; where the decedent was a non-resident, only inherited property located in Korea. "Resident" here is not about nationality but the Income Tax Act concept — an individual with a domicile in Korea or a place of residence there for 183 days or more. Someone who has kept Korean nationality can be a non-resident if their life is centred abroad, and a foreign national with a domicile in Korea can be a resident. So the first step is always to lay the passport, immigration record, home-country tax residency certificate and the family’s living arrangements side by side and settle the question. Because reversing this finding changes the scope of tax itself, it has to be fixed before any return is drafted.
Where non-resident inheritance actually hurts — almost no deductions
Many people believe the first KRW 500m of an estate is untaxed. That 500m is the lump-sum deduction, and the provision limits it to residents. Article 21(1) of the Inheritance Tax and Gift Tax Act allows the greater of KRW 500m or the sum of the basic and personal deductions only where inheritance commences "on the death of a resident". The deduction for inherited financial assets (Article 22(1)) is limited the same way. By contrast, the KRW 200m basic deduction under Article 18 applies on the death of "a resident or a non-resident" alike. The practical result is that in a non-resident’s estate essentially only the 200m basic deduction survives. Since inheritance tax is progressive from 10% on a base up to KRW 100m to 50% above KRW 3bn, losing the 500m deduction alone moves the liability a long way. That is why we settle residency first. Where the finding is genuinely arguable we gather the evidence and test whether resident status can be supported; where non-residence is settled, we redesign valuation and division on that footing.
Deadlines — six months becomes nine where there is a domicile abroad
An inheritance tax return is due within six months from the last day of the month in which inheritance commences, but the period becomes nine months where the decedent or an heir was domiciled abroad (Article 67(1) and (4)). In overseas-Korean estates that nine-month rule matters a great deal in practice, because powers of attorney and signature certifications have to be obtained from every heir abroad and the timetable has to fit the home country’s own succession process. Gift tax, by contrast, allows only three months from the last day of the month in which the gift is received (Article 68(1)), which leaves no slack if documents are slow. We identify the applicable deadline at the first meeting and work backwards from how long each overseas document takes to issue.
Selling Korean property — the two-month preliminary return comes first
When an overseas Korean or foreign national sells Korean property, capital gains tax filing follows. For land, buildings and rights to real property a preliminary return is due within two months from the last day of the month of transfer, and where there is a gain for the year a final return is due between 1 and 31 May of the following year. Filing the preliminary return generally removes the need for a final one, unless, for example, two or more preliminary returns for progressive-rate assets were filed in the same year. Even for a non-resident, domestic-source gains on the transfer of real estate are taxed by classification in the same way as for residents (Income Tax Act, Article 121(2)), so the computation resembles the resident case. The recurring practical problem is proving the acquisition cost of long-held property. Where it was acquired by inheritance or gift, or bought in the 1980s or 1990s, the original records are often gone and deductible costs become hard to establish — so it is safer to secure that evidence before signing the sale contract.
Source of funds and overseas accounts — these questions arrive together
Cross-border inheritance and gift matters frequently lead into scrutiny of money flows. If Korean property was bought with funds remitted from abroad, the origin of those funds has to be explained; money that left Korea interacts with home-country reporting. A resident or domestic corporation holding overseas financial accounts whose aggregate balance exceeds the threshold set by Presidential Decree on any month-end must report the account information between 1 and 30 June of the following year (Act on Adjustment of International Taxes, Article 53(1)). Because a change in residency status also changes whether that duty exists, we review overseas-account reporting history alongside the residency question.
Documents to prepare
- Family relation and basic certificates for the decedent and every heir (or equivalent foreign public documents)
- Residency evidence — certificate of entry and exit, home-country tax residency certificate, proof of overseas address
- Schedule of Korean assets — full property registry extracts, bank balance certificates, shareholding records
- Powers of attorney and signature certification from every heir (notarised locally or certified at a Korean mission abroad)
- For gifts: the gift agreement, remittance records, evidence of the source of funds
- For transfers: the sale contract, the original acquisition contract and receipts, evidence of capital expenditure, brokerage invoices
How we work
Settle residency
We fix resident or non-resident status from immigration records, home-country tax certificates and evidence of where life is centred.
Identify and value assets
We establish the scope of Korean property and review valuation and division.
File and pay
We prepare and submit the return to the applicable deadline and deal with payment, instalments or payment in kind.
Follow-up
If a source-of-funds enquiry or further questions from the tax office follow, we handle those too.
Frequently asked questions
Does a non-resident decedent really mean more inheritance tax?
On the same assets, very likely. The KRW 500m lump-sum deduction (Article 21(1)) and the deduction for inherited financial assets (Article 22(1)) are limited by their own wording to death "of a resident", while only the KRW 200m basic deduction (Article 18) applies to residents and non-residents alike. Working the other way, the taxable scope narrows to Korean-situs property, so the final figure depends on the composition of the estate. It needs to be calculated case by case.
Does Korean nationality make someone a resident?
No. Article 1-2(1) of the Income Tax Act defines a resident as an individual with a domicile in Korea or a place of residence there for 183 days or more. The test is where life is centred, not nationality, so an overseas Korean who has kept Korean nationality can still be a non-resident.
Every heir is abroad — can we really file within six months?
Where the decedent or an heir was domiciled abroad the deadline is nine months (Article 67(4)). Because powers of attorney and signature certification take time to obtain overseas, we work backwards from that nine-month period when scheduling document collection.
I sold my Korean apartment — when do I file?
A preliminary return is due within two months from the last day of the month of transfer (Income Tax Act, Article 105(1)). Where there is a gain for the year, a final return is due between 1 and 31 May of the following year, although filing the preliminary return generally removes that requirement (Article 110).
I bought the property 30 years ago and have no record of the price.
Without acquisition evidence, deductible costs are hard to establish and the computed gain can be much larger. There is often room to reconstruct it from the registry, historical bank records or acquisition tax receipts, so it is worth checking before you sign a sale contract. What is accepted varies by case and needs individual review.
One office for your cross-border tax questions
Foreign-corporation tax, cross-border inheritance and gifts, Korea–U.S. income tax — we explain exactly how your own case is treated. Please get in touch.