Cross-Border Gift Tax Rules Between U.S. and Korea
한미 간 증여세 규정 — OBBBA 영구 면제액 $15M 적용 2026
The U.S. taxes the donor; Korea taxes the recipient. Verified 2026 figures: $19,000 annual exclusion, $15,000,000 lifetime exemption (OBBBA permanent), and $194,000 for gifts to a non-citizen spouse.
Overview — Opposite Systems 정반대의 두 제도
The U.S. and Korea structure gift taxation around opposite parties to the transaction. This single structural difference explains nearly every cross-border complication in this topic.
- The GIVER pays U.S. gift tax
- Applies to worldwide gifts by U.S. persons (citizens, green card holders, U.S. domiciliaries)
- Annual exclusion + unified lifetime exemption
- Form 709 required once gifts to one recipient exceed the annual exclusion
- The RECIPIENT (donee) pays Korean gift tax (증여세)
- Applies to Korean residents receiving any gift, worldwide
- Also applies to anyone (regardless of residency) receiving Korean-situs assets
- Progressive rates 10%–50%
2026 Figures — OBBBA's Permanent $15M Exemption 2026 수치 — OBBBA가 영구 확정한 $15M 면제액
Gifts exceeding the $19,000 annual exclusion to any one recipient require filing Form 709 and reduce the donor's $15,000,000 lifetime exemption — but generate no actual tax owed until that entire lifetime exemption is exhausted. The federal gift tax rate above the exemption is 40%.
U.S. Gift Tax — Donor-Based 미국 증여세 — 증여자 기준
If the donor is a U.S. citizen, green card holder, or U.S. domiciliary (for gift tax purposes — a facts-and-circumstances domicile test, similar to the estate tax domicile concept), U.S. gift tax applies to all gifts worldwide — including gifts of Korean real estate, Korean cash, Korean stocks, and Korean business interests to anyone, anywhere.
Korean Gift Tax — Recipient-Based 한국 증여세 — 수증자 기준
- Korean residents receiving any gift(worldwide assets, from any source) are subject to Korean 증여세.
- Anyone receiving Korean-situs assets is subject to Korean 증여세, regardless of the recipient's own residency — a U.S.-resident child receiving Korean real estate from a Korean parent faces Korean gift tax on that specific asset even though the recipient lives in the U.S.
- Korean gift tax rates are progressive, 10%–50%, with deductions available depending on the relationship between donor and recipient (e.g., a parent-to-child deduction reduces the taxable base before the rate is applied).
Gifts FROM Korea TO a U.S. Person — Form 3520 한국에서 미국으로의 증여 — Form 3520
Gifts FROM a U.S. Person TO Korea — Double Tax Risk 미국에서 한국으로의 증여 — 이중과세 위험
Green Card Holders — Fully Subject Until Formally Abandoned 영주권자 — 공식 포기 전까지 전면 적용
- A green card holder is treated as a U.S. domiciliary for gift tax purposes in the overwhelming majority of cases — even if living in Korea, earning only Korean income, and owning only Korean assets.
- This continues until the green card is formally abandoned(or, in rare cases, until a fact-specific determination concludes the person is not actually U.S.-domiciled despite holding the card — see the domicile discussion in the companion estate tax guide).
- A green card holder gifting Korean assets to Korean family members must still file Form 709 and account for U.S. gift tax under the worldwide donor-based rule.
Gifts of U.S. Assets by a Nonresident Alien 비거주 외국인의 미국 자산 증여
| Asset Gifted by a Non-Domiciled NRA | U.S. Gift Tax? |
|---|---|
| U.S. real property | YES — U.S. situs, subject to U.S. gift tax |
| U.S. tangible personal property located in the U.S. | YES |
| U.S. stocks (intangible property) | NO — intangible property is generally not subject to U.S. gift tax when gifted by a nonresident alien, regardless of where the underlying company is incorporated |
| Cash (U.S. or foreign bank accounts) | NO — cash gifts by an NRA are generally not subject to U.S. gift tax |
This is a notably different and more favorable rule than the estate tax treatment for the same NRA category — gift tax for nonresident aliens reaches only U.S. real property and U.S. tangible property, while intangible property (including U.S. stock) escapes U.S. gift tax even though it would be includible in a U.S. estate tax analysis if the same NRA died still owning U.S. stock without proper structuring.
Spousal Gifts — Citizen vs. Non-Citizen Spouse 배우자 간 증여 — 시민권자 vs. 비시민권자
| Recipient Spouse Status | 2026 Annual Limit | Notes |
|---|---|---|
| U.S. citizen spouse | Unlimited | Unlimited marital deduction — no gift tax regardless of amount |
| Non-citizen spouse (Korean national, even if a U.S. resident) | $194,000 | Gifts above this amount reduce the donor's lifetime exemption — they don't trigger immediate tax, but Form 709 reporting is required |
Scenarios by Direction 방향별 시나리오
| Scenario | U.S. Gift Tax? | Korean Gift Tax? | Form 3520 (U.S. Recipient)? |
|---|---|---|---|
| Korean parent gifts cash to U.S. child | NO | Possibly, if Korean-situs funds — check Korean rules | YES if >$100,000 aggregate |
| U.S. citizen gifts Korean real estate to Korean child | YES | YES | N/A (donor is the U.S. person) |
| U.S. citizen gifts Korean stocks to Korean parent | YES | YES (Korean-situs asset) | N/A |
| Korean resident gifts Korean real estate to U.S. child | NO | YES (recipient-based, though recipient is the U.S. child — Korean rules on who actually remits may vary) | YES if >$100,000 |
| U.S. green card holder (living in Korea) gifts Korean assets | YES — still a U.S. domiciliary | Possibly | N/A |
| U.S. person gifts U.S. stocks to a Korean recipient | YES (donor-based) | YES if recipient is a Korean resident | N/A |
5 Fully Computed Examples 실제 계산 사례 5개
| Korean parent (not a U.S. person) gifts $300,000 cash to a U.S. citizen child | No U.S. gift tax — the donor isn't a U.S. person |
| Form 3520 required — exceeds the $100,000 threshold | No tax owed, but the reporting is mandatory; 25%-of-amount penalty exposure if missed |
| U.S. gift tax: $1,000,000 − $19,000 annual exclusion = $981,000 taxable, applied against the $15,000,000 lifetime exemption | No tax currently due (well within the lifetime exemption), but $981,000 of exemption is used — Form 709 required |
| Korean gift tax: the Korean child (recipient) owes Korean 증여세 on the $1M Korean-situs property, progressive up to 50% | No coordination with the U.S. side — full Korean tax applies independently |
| Green card holder (lives in Korea, all assets Korean) gifts $200,000 of Korean stock to a sibling | U.S. gift tax applies: $200,000 − $19,000 = $181,000 reduces the lifetime exemption; Form 709 required |
| Korean gift tax also applies (Korean-situs asset, Korean recipient) | No treaty coordination |
| Korean parent gifts $150,000 of Korean stock to a U.S. citizen child | No U.S. gift tax (donor not a U.S. person); Korean gift tax may apply on the Korean side depending on Korean rules |
| Form 3520 required (>$100,000) | Basis carries over from the donor for a lifetime gift (NOT stepped up — this is different from inheritance, where basis steps up to date-of-death FMV) |
| Gift to a non-citizen (Korean) spouse: $250,000 | |
| First $194,000 (2026 limit) excluded entirely | No tax, no exemption used on this portion |
| Remaining $56,000 reduces the donor's $15,000,000 lifetime exemption | Form 709 required; no tax currently due |
Common Mistakes 자주 발생하는 오류
- 1 Using outdated exemption figures (roughly $6.8M lifetime, $18,000 annual) in planning. OBBBA permanently set the 2026 figures at $15,000,000 lifetime and $19,000 annual — plan with current numbers, not pre-OBBBA sunset projections.
- 2 Assuming gifts are always tax-free across borders. The donor-based U.S. system and recipient-based Korean system can both tax the same cross-border gift, with no treaty relief.
- 3 Not filing Form 3520 for a large gift from Korean parents, believing "no U.S. tax" means "no U.S. reporting." The $100,000 threshold for reporting applies regardless of the absence of any U.S. gift tax liability.
- 4 Believing green card holders escape U.S. gift tax by living in Korea. Green card status generally establishes U.S. domicile for gift tax purposes regardless of physical location, continuing until formal abandonment.
- 5 Using the unlimited marital deduction for a non-citizen spouse. The unlimited deduction applies only when the recipient spouse is a U.S. citizen — a non-citizen spouse (even a U.S. resident) is limited to the $194,000 (2026) annual amount.
- 6 Assuming a nonresident alien donor's gift of U.S. stock triggers U.S. gift tax. Intangible property (including U.S. stock) gifted by an NRA is generally exempt from U.S. gift tax — a notably different rule than for U.S. real property or tangible property gifted by the same NRA.
- 7 Confusing lifetime-gift basis treatment with inherited-asset basis treatment. Assets received as a lifetime gift carry over the donor's original basis; assets received through inheritance receive a stepped-up basis to date-of-death FMV — these are different rules with different planning implications.
- 8 Not considering gifting Korean cash instead of Korean real estate to reduce complexity. Gifting Korean real estate triggers both U.S. gift tax (donor-based) and Korean gift tax on a relatively illiquid, harder-to-value asset — cash gifts, while still subject to both systems, are simpler to value and transfer.
Hanmi CPA Insight
The single most important update to bring to any conversation about cross-border gift planning in 2026 is the same one that applies to estate planning generally: OBBBA's permanent $15 million lifetime exemption has fundamentally changed the planning environment relative to the figures that circulated for years in anticipation of the TCJA sunset. A Korean-American donor planning a substantial gift — whether of Korean real estate, Korean stock, or cash — now has dramatically more lifetime exemption capacity than the roughly $7 million that was widely expected for 2026 before OBBBA. This does not eliminate the double-taxation problem described throughout this guide (Korea's recipient-based system operates entirely independently of the U.S. exemption level), but it does mean fewer cross-border gifts will generate any actual U.S. gift tax liability, even after accounting for the Korean side.
The structural mismatch between the U.S.'s donor-based system and Korea's recipient-based system is the conceptual key to this entire topic, and it explains why the same underlying transfer can look completely different depending on which direction it flows. A gift from a Korean parent to a U.S. child triggers no U.S. gift tax at all (the donor isn't a U.S. person) but does trigger Form 3520 reporting. The reverse — a U.S. parent gifting to a Korean child — triggers U.S. gift tax on the donor while Korea separately taxes the recipient. Neither direction is inherently "safer"; each carries a different combination of tax and reporting obligations that should be mapped explicitly before any cross-border gift is made, not assumed from how a similar-looking domestic gift would be treated.
For Korean-American families planning significant cross-border transfers — particularly of real estate or business interests, where the absence of a gift tax treaty means no coordination between the two countries' tax computations — the practical sequence is to model both sides independently: the U.S. donor-side gift tax exposure under the current $15M/$19,000 framework, and the Korean recipient-side 증여세 exposure under Korean rules, including available relationship-based deductions. Only after seeing both calculations side by side does it become clear whether restructuring the gift (timing, asset type, or amount) meaningfully reduces the combined burden.