Korean Inheritance Redistribution Gift and Acquisition Tax Deadline Calculator

Provide the whole-property gift valuation and the separately confirmed whole-property gift acquisition tax base.
An increase from 50% to 100% is a 50-percentage-point transfer.
With a value of KRW 600,000,000, the increased value is KRW 300,000,000.
Increased value = whole-property value × max(new share − original share, 0) / 100.
Amounts are KRW, shares permit two decimal places, and fractional won are discarded.

National market value and the local acquisition base need not match.
Local Tax Act Article 10-2 generally uses the officially assessed value for inheritance and recognized market value for a gift, with statutory exceptions.
Do not copy an assessed value into both fields without checking.
Enter the whole-property base, not an amount already multiplied by the transferred share; otherwise the share would be applied twice.

The ordinary ten-year deduction is KRW 10,000,000 for qualifying siblings and other relatives, KRW 600,000,000 for a spouse, KRW 50,000,000 for an adult receiving from a direct ascendant or a recipient receiving from a direct descendant, and KRW 20,000,000 for a minor receiving from a direct ascendant.
This tool covers ordinary deductions for Korean-resident recipients.
Generation skipping, marriage and childbirth relief require separate review.

The KRW 10M allowance does not restart for each sibling.
Enter deductions already used throughout the applicable relationship category.
Separately, Article 47(2) aggregates prior ten-year gifts from the same donor if their sum is at least KRW 10,000,000.
Below that amount, prior gifts are excluded from aggregation, but previously used deductions remain used.
Confirm statutory same-donor groupings, including a direct ascendant and that ascendant’s spouse.

Current deduction is the smaller of the increased value and remaining category allowance.
The combined tax base is current value minus current deduction plus aggregated prior value minus the deductions applied to that prior value.
Under Article 55(2), a base below KRW 500,000 attracts no gift tax.
Exactly KRW 500,000 falls outside that exemption.

Articles 26 and 56 apply 10% through KRW 100M, 20% above 100M through 500M, 30% above 500M through 1B, 40% above 1B through 3B, and 50% above 3B.
The corresponding progressive offsets are KRW 0, 10M, 60M, 160M and 460M.
Each part of the tax base is taxed at its marginal bracket rate rather than applying the highest rate to the entire gift.

Article 58 credits the calculated tax on aggregated prior gifts, capped at combined calculated tax × prior taxable base / combined taxable base.
The input is prior calculated gift tax paid or payable, which may differ from the cash remitted after credits.
Article 69 provides a 3% timely-filing credit after the prior-tax credit.
Turn off timely filing to remove that credit.
Penalties and other specialized credits are excluded.

The ordinary timing exception in Local Tax Act Article 7(13) requires redistribution acquisition and registration to be completed within the inheritance filing/payment deadline.
Signing an agreement while registration is delayed may leave a gift-acquisition liability.
This comparison does not charge the original inheritance acquisition tax again: its in-time additional gift-acquisition tax is zero.
That does not remove the original inheritance filing obligation.

Ordinary gift acquisition tax under Article 11(1)2 is 3.5%.
Homes may have Article 13-2 surcharges and exceptions based on area, value and relationship; high-end property may trigger Article 13, and relief needs separate confirmation.
Unless ordinary 3.5% treatment is confirmed, taxable acquisition amounts and their totals are withheld.
A home checkbox does not decide the rate.
Local education tax and rural surtax are separate.

Inheritance Tax Decree Article 3-2 lists a final inheritance-recovery judgment changing heirs or property, redistribution after creditor-subrogation registration in statutory shares, and qualifying payment-in-kind refusal or property-change orders after an application made within the inheritance filing period.
A later family preference or verbal agreement is not automatically a statutory exception.
Select an exception only after checking its complete conditions and evidence.

Local Tax Act Article 7(13) lists inheritance recovery and creditor subrogation but does not list the same payment-in-kind exception.
Selecting payment-in-kind refusal therefore removes national gift tax only; the local acquisition and registration timing still matters.
A confirmed exception also applies in hypothetical rows B and C.
The calculator does not decide whether a judgment, subrogation or payment-in-kind application is legally effective.

Assume inheritance on 2026-04-10, agreement and confirmed national/local acquisition on 2026-10-20, registration application on 2026-11-06 and effective registration on 2026-11-10.
There are no foreign addresses or statutory exceptions.
Both whole-property values are KRW 600,000,000, and the recipient’s share rises from 50% to 100%.
The parties are siblings with no previous gifts or deduction usage, and ordinary 3.5% acquisition treatment is confirmed.

Both deadlines are 2026-11-02.
Row A, completed within both deadlines, has zero additional principal taxes.
Row B has acquisition tax of KRW 10,500,000 because registration is late.
In row C, national acquisition is also late: the gift tax base is KRW 290,000,000, calculated tax KRW 48,000,000, filing credit KRW 1,440,000 and final gift tax KRW 46,560,000.
Including acquisition tax gives KRW 57,060,000.
The entered schedule corresponds to B, assuming the national acquisition date has been confirmed with the authority.

Keeping the existing shares creates no transfer now, so additional transfer tax is zero.
Future holding taxes, management contributions and agreement on disposal remain separate concerns.
A share sale is not automatically preferable merely because it is called a sale: check the seller’s capital gains tax, buyer’s acquisition tax, transaction costs and actual payment.
Related-party undervaluation or a nominal sale requires further review.

Enter a confirmed combined sale quote yourself.
Without confirmation it is withheld rather than shown as zero.
The redistribution rows contain gift tax and acquisition principal only, while a sale quote may include fees; align the included items before choosing.
The timing rows hold values and history fixed to isolate timing.
A real change of date can change valuations and the ten-year window, requiring a fresh calculation.