Korea's Burdened Gift Tax: Where Gift Tax Ends and Capital Gains Begin

In a burdened gift (budamboo jeungyeo — a gift transferred together with attached debt), the tax bill splits across two people. The portion covered by debt the child assumes is treated as a sale for consideration, so the parent pays capital gains tax on it; only the remainder counts as a pure gift, taxed to the child. On an apartment valued at 1 billion won carrying a 400-million-won jeonse (lump-sum deposit lease) obligation, 600 million is gift-taxed and 400 million is capital-gains-taxed.

Its reputation as a tax-saving move comes from breaking the gift tax progression. Gifting the whole billion pushes the base into the 30% band; trimming it to 600 million cuts the liability sharply within that same band. But Korea's surcharge on multi-home owners' capital gains resumed on 10 May 2026, and that can flip the sign of the whole calculation.

The debt portion is a sale

Computing the capital gain requires slicing the parent's original acquisition cost by the debt ratio. A National Tax Service ruling gives the formula as "asset value × (debt ÷ gift value)." The sale price is the debt itself; the cost basis is the parent's original cost multiplied by the debt ratio.

Fix the assumptions to put numbers on it: market value 1 billion won, jeonse deposit 400 million, the parent's acquisition cost 300 million, ten years of ownership, an adult child recipient with no other gifts in the past decade. Incidental expenses and local surtaxes are excluded.

Rates come from the NTS gift tax schedule: 30% with a 60-million-won progressive deduction for bases between 500 million and 1 billion. The gift deduction is 50 million won for an adult receiving from a lineal ascendant, 20 million for a minor, aggregated over ten years.

The capital gains side turns on the surcharge

Sale price is 400 million; cost basis is 300m × (400m ÷ 1,000m) = 120 million, leaving a gain of 280 million. From here the outcome forks. Hankyung's real estate value-up center reports that the four-year suspension of the multi-home surcharge ended on 9 May 2026, restoring 20 percentage points for two-home owners and 30 points for three or more.

The same 400-million debt transfer costs the parent either 70.65 million or 155.11 million — more than double. Falling under the surcharge does not merely add 20 points; it wipes out the long-term holding deduction entirely. Inherited property follows a different cost-basis rule, covered in the piece on why an inherited home's cost basis is its value at death.

A burdened gift does not shrink tax; it moves tax. Whatever comes off the child's gift bill reappears on the parent's capital gains bill, and how much reappears is decided by how many homes the parent owns.

Against a plain gift, the sign flips

Gifting the same home outright at 1 billion won gives a base of 950 million, computed tax of 950m × 30% − 60m = 225 million, and 218.25 million after the 3% filing credit. Set that beside the two scenarios.

While the surcharge was waived, the burdened gift saved 45.75 million won; with it restored, the identical transaction costs 38.71 million more. A parent who qualifies for the single-home exemption pays close to nothing in capital gains, widening the saving; a parent with three or more homes faces 30 extra points and a wider loss. The variable that decides the outcome is not the debt ratio but the donor's home count.

Which debts count

A Korean tax advisory sets the test as debt that genuinely exists on the gift date and attaches directly to the property — mortgage loans and lease deposits qualify, private IOUs generally do not. Minors are presumed unable to service debt, so a burdened gift to a minor risks being disallowed outright.

Between spouses or lineal relatives there is one more gate. Korea Real Estate News notes that local governments request income documentation, such as withholding statements, to verify the recipient can actually carry the debt. Transfer debt to a spouse or student with no income and the transaction can be recharacterized as a gift in full.

Follow-through matters too. Who actually repays the principal and interest becomes a later audit question, and a parent quietly servicing the child's loan turns those payments into a fresh gift.

Acquisition tax splits the same way

The same article puts acquisition tax at 3.5% on the gift portion (12% for homes worth 300 million or more in regulated zones) and 1–3% on the debt portion at sale rates, rising to 8% or 12% where the donor holds multiple homes and the recipient already owns one. Applying those rates to the same 1-billion / 400-million structure gives a range.

The identical transfer swings 4.8-fold on regulated-zone status and the two parties' home counts. Local education tax and the rural development surtax are excluded here. How the underlying rate bands work is covered in the piece on reading the 1–3% acquisition tax range.

Two filings, three months

Gift tax is filed by the recipient within three months from the end of the month containing the gift date. The preliminary capital gains return runs on the same clock and is filed separately by the donor. Different taxpayers, different taxes — which is why one of the two often goes unfiled.

Filing on time takes 3% off the computed gift tax: 3.15 million won in the example above. Miss the deadline and that credit disappears while non-filing and late-payment penalties attach.

What to check

• The donor's home count and surcharge status — the first variable that can invert the whole comparison
• The registered mortgage ceiling versus the actual outstanding balance; the debt figure is the balance, not the registered maximum
• The recipient's income documentation — without earned income, the debt assumption can be denied
• Whether the property sits in a regulated zone and clears the 300-million-won line, which splits acquisition tax between 3.5% and 12%
• Gifts received from the same donor over the past ten years; the 50-million-won deduction is a decade-long aggregate
• Who actually repays the loan after the transfer, since the source of funds is audited later
• The three-month clock from month-end of the gift date, for both returns

Sources

• NTS — computing capital gains and gift tax on a burdened gift
• NTS gift tax rates and gift deductions
• The burdened gift as a tax strategy
• Burdened gifts, acquisition tax and capital gains tax
• What the 2026 tax reform changes for multi-home owners