“Ten years” appears twice in Korea’s gift tax. Once in the deduction ceiling, once in the aggregation rule. Same number — but they count people differently, and that is where most of the confusion lives.
Aggregation (article 47(2)) works on the same person. Where the giver is an ascendant, their spouse is included — so father and mother are one person, and grandparents are separate.
The deduction (article 53) works on a group. All ascendants together — parents and grandparents alike — share one KRW 50m ceiling.
So aggregation separates parents from grandparents, and the deduction merges them. Opposite directions.
First: splitting does not reduce it
Say KRW 400m is going to an adult child. Three ways of doing it.
| Arrangement | Calculation | Total |
|---|---|---|
| One gift of KRW 400m | base KRW 350m → tax KRW 60m | KRW 58.2m |
| 200m + 200m inside ten years | 19.4m + 38.8m | KRW 58.2m |
| 200m + 200m ten years apart | 19.4m + 19.4m | KRW 38.8m |
Why it comes out exactly equal
Not a coincidence — the statute is built to produce it. The second gift is computed like this.
| Step | Article | Amount |
|---|---|---|
| This gift | — | KRW 200m |
| The earlier gift is added back | 47(2) | + KRW 200m |
| Gift deduction | 53(2) | − KRW 50m |
| Taxable base | — | KRW 350m |
| Tax | 56 | KRW 60m |
| Credit for tax already paid | 58 | − KRW 20m |
| Filing credit 3% | 69(2) | − KRW 1.2m |
| Payable | — | KRW 38.8m |
Add the KRW 19.4m paid earlier and you get 58.2m — the single-gift figure. Adding back restores the rate band, and the credit prevents double taxation: the two articles move as a pair. Either one alone would give the wrong answer.
So “split it and use the low band twice” is true only outside ten years. Inside, however many pieces, it all comes back together at the end.
“The same person” — two parents are one
Article 47(2) aggregates gifts from “the same person,” and there is a parenthesis: where the giver is an ascendant, that ascendant’s spouse is included.
So from a child’s side, father and mother are one person. Take KRW 200m from your father and KRW 200m from your mother the same year, and the second return adds the first back. Receiving separately does not avoid it.
Grandparents, by contrast, are a different same-person from the parents (though the two of them are one between themselves). What comes from parents and what comes from grandparents do not aggregate with each other.
There is a floor: gifts aggregate only when the ten-year total reaches KRW 10m or more. Below that, nothing is added back.
The deduction, however, merges them
This is the point of the article. The KRW 50m in article 53(2) is a single ceiling attached to “a gift received from an ascendant” — there is no separate 50m for parents and another for grandparents.
| Aggregation (47(2)) | Deduction (53) | |
|---|---|---|
| Father · mother | one person | one KRW 50m between them all |
| Grandfather · grandmother | separate from the parents |
Take KRW 50m from your parents and the deduction is spent; anything from a grandparent afterwards is taxable in full. “More givers, more allowance” is the most expensive misreading in this part of the Act.
Running parents 200m plus grandparents 200m
Suppose KRW 200m comes from the parents first, then KRW 200m from the grandparents. A gift straight from a grandparent carries a 30% generation-skipping surcharge (article 57).
| Deduction | Base | Tax | Surcharge 30% | Payable | |
|---|---|---|---|---|---|
| Parents KRW 200m | KRW 50m | KRW 150m | KRW 20m | — | KRW 19.4m |
| Grandparents KRW 200m | 0 | KRW 200m | KRW 30m | + KRW 9m | KRW 37.83m |
| Total | KRW 57.23m | ||||
| If all KRW 400m had come from the parents | KRW 58.2m | ||||
The result is counter-intuitive — even carrying the KRW 9m surcharge, it comes out KRW 0.97m lower. Splitting the aggregation means the 20% band gets used twice, and that gain just clears the surcharge and the lost deduction.
But this holds only at this size. Push the amounts up until the grandparents’ share reaches the 30% band and the larger surcharge flips it. Do not generalise it into “involve the grandparents and save” — run both cases at your own numbers in the calculator.
Which day does the ten years run from?
Ten years back from the date of this gift. Not the filing date and not the payment date — the date the gift was received.
So KRW 200m received on 1 June 2016 is not added to a gift made on or after 1 June 2026. A single day can move KRW 19.4m — that is the gap between the second and third rows above.
Whether the exact tenth anniversary falls inside or outside, though, we could not verify against the statute. If your dates are close, confirm that day before acting.
Questions that remain
If my father and mother give separately, is it KRW 50m each?
No. The deduction is one KRW 50m across all ascendants (article 53(2)). And father and mother are one person for aggregation too (article 47(2)), so receiving separately changes nothing. Here the two articles happen to point the same way — they diverge once grandparents are involved.
Under KRW 10m, is no return needed?
KRW 10m is the aggregation floor, not a filing exemption. It means that if the ten-year total falls short of 10m, the earlier gifts are not added to this one’s taxable amount. The duty to file the gift itself survives even at zero tax (article 68(1)) — and that filing is what evidences how much deduction has been used.
Does the KRW 50m deduction come back after ten years?
Yes. The deduction ceiling is also a ten-year aggregate, so as earlier gifts fall outside the window the ceiling is restored. That is why the third row above is 19.4m twice — the second KRW 200m gets a fresh KRW 50m.
If I give the gift back, does it un-happen?
There is a provision under which returning it within a period means the gift is treated as never having been made. The period, the conditions, and what happens to tax already filed and paid we could not verify against the statute. Do not file this under “I can just give it back” — ask the tax office first, because there is a point past which it cannot be undone.
Is every transfer between accounts a gift?
Living expenses and education costs are carved out by article 46. But the wording turns on what is “socially accepted”, which cannot be reduced to a figure. That part is quoted in full in the gift tax deduction limits. We could not establish the boundary numerically.
Sources and where to check
Inheritance and Gift Tax Act article 47(2) — gifts received within ten years before the gift date from the same person (including, where the giver is an ascendant, that ascendant’s spouse) are added back once they total KRW 10m or more.
Article 53(2) (KRW 50m from ascendants, 20m to a minor) · 56 (rates) · 57 (generation-skipping surcharge) · 58 (credit for tax already paid) · 68(1) (filing deadline) · 69(2) (3% filing credit).
The same-person test was checked with particular care. The first source consulted stated that an ascendant’s spouse counts as a separate giver — the opposite of the statute. Two further unrelated sources were opened before writing, both confirming that parents are one person and grandparents are separate. The statute itself could not be opened — the national law portal blocks automated retrieval.
Where to check further
The date of the earlier gift. The date matters before the amount does — inside or outside ten years decides the tax.
The earlier return. How much deduction was used is recorded there. If nothing was filed, there is no record.
Your own numbers. Whether involving grandparents helps flips with the size of the gift — run both through the gift tax calculator.
