Death Benefit Inheritance Tax Calculator

Decide whether a Korean life-insurance death benefit is subject to inheritance tax, gift tax, or is non-taxable, based on who paid the premiums (Inheritance and Gift Tax Act Articles 8 and 34, Enforcement Decree Article 4). Apportions the benefit by premium source and estimates the added 2026 inheritance tax.

Tax scenario inputs

Enter Korea-related tax assumptions in KRW. The model uses a simplified effective-rate estimate.

Death benefit amount (KRW)

KRW

Estate deductions (lump-sum 500M default)

KRW

Estimated transfer tax rate

Tax credit or surcharge

KRW

Taxable transfer value

₩0

Estimated gross tax

₩0

Net tax after adjustment

₩0

After-tax amount

₩500,000,000

Effective rate

This English page is a simplified Korea-related tax planning estimate. It does not reproduce official forms, progressive brackets, exemptions, local surtaxes, filing classifications, or eligibility decisions. Confirm current Korean rules before filing, paying, investing, or restructuring.

Related calculators

What is the Death Benefit Inheritance Tax Calculator?

This calculator decides whether a life or accident insurance death benefit paid on the death of the decedent (the insured person who died) is subject to Korean inheritance tax, gift tax, or is non-taxable as the beneficiary’s own property. Because the same death benefit is treated very differently depending on who actually paid the premiums, this is the first gate in any inheritance plan that uses whole-life insurance.

This calculator is based on Korean tax rules (Inheritance and Gift Tax Act, in force from 2 January 2026, and its Enforcement Decree in force from 27 February 2026). A common myth is that “insurance money is not an estate asset, so there is no inheritance tax.” In fact, Article 8 of the Act treats a death benefit funded by the decedent’s premiums as a deemed estate asset. Conversely, a well-structured contract can make the same benefit non-taxable, turning it into a source of funds to pay inheritance tax.

Who needs this

• Heirs who received a whole-life death benefit after a parent’s death
• Wealth holders using life insurance to fund inheritance tax
• Families deciding who should be the policyholder, insured, and beneficiary
• Cross-contract families (father pays, mother insured, child beneficiary)
• Adult children with income who pay premiums from their own earnings
• Advisors who must explain the tax structure on the spot

Why is death benefit taxation confusing? The three parties

Every insurance policy has three roles: the policyholder (the real premium payer), the insured whose death triggers the payout, and the beneficiary (recipient). Taxation of a death benefit turns on these three parties — above all, on who substantively paid the premiums.

Three tax outcomes by premium payer

Real premium payer	Tax outcome	Basis
Decedent (the deceased)	Inheritance tax (deemed estate)	Article 8
Beneficiary themselves	Non-taxable (own property)	Outside Art. 8 and 34
Third party (not decedent or beneficiary)	Gift tax	Article 34

So the key is not whose name is on the policy, but the source of the premiums. Article 8(2) states that even if the named policyholder is someone else, the benefit is an estate asset when the decedent substantively paid the premiums.

Death benefit treated as an estate asset: the apportionment formula

When several people share the premiums, the whole death benefit is not an estate asset — only the portion matching the share of premiums paid by the decedent is deemed an estate asset. This apportionment is set out in Article 4 of the Enforcement Decree.

Enforcement Decree Article 4 formula

Deemed estate death benefit
= total benefit paid × ( premiums paid by decedent ÷ total premiums paid )

For a KRW 500 million benefit whose premiums were 60% paid by the decedent and 40% by the child (the beneficiary), KRW 300 million is taxable as a deemed estate asset and KRW 200 million is non-taxable as the child’s own property. Any portion paid by a third party is subject to gift tax under Article 34.

Inheritance tax rates (Article 26, same as gift tax)

Tax base	Rate	Progressive deduction
Up to KRW 100 million	10%	-
KRW 100M – 500M	20%	KRW 10M
KRW 500M – 1B	30%	KRW 60M
KRW 1B – 3B	40%	KRW 160M
Over KRW 3B	50%	KRW 460M

If the total estate stays within the lump-sum deduction (KRW 500 million) and the spousal deduction, no inheritance tax may actually arise. This tool estimates the extra inheritance tax the deemed benefit adds, based on the other estate assets and deductions you enter. The 2024 proposal to cut the top rate to 40% was not enacted, so the five-bracket 10–50% schedule remains in force for 2026.

How to use it

Step 1: Enter the total death benefit

Enter the death benefit you receive or are planning.
The Korean tool uses 10,000-won (manwon) units; KRW 500 million is entered as 50,000 manwon.

Step 2: Choose the premium payer structure

Pick decedent-only, beneficiary-only, or third-party-only, or choose custom to enter each source’s premiums.
Premium amounts are used only as relative ratios, so approximate shares are enough.

Step 3: Choose the beneficiary relationship

Select whether the beneficiary is an heir (spouse, child, etc.) or a non-heir named beneficiary.
When inheritance tax applies, a non-heir recipient is taxed as a legatee (recipient of a bequest).

Step 4: (Optional) Estimate the inheritance tax impact

Enter other estate assets and total deductions to estimate how much the deemed benefit raises inheritance tax, with the marginal rate.
Leave them blank to use the KRW 500 million lump-sum deduction.

Worked scenarios

Parent’s whole-life policy: usually inheritance tax

If a parent is both policyholder and insured and paid the premiums from their own income, the full death benefit is a deemed estate asset even when a child receives it. It is added to the rest of the estate, so families with large estates may see this benefit taxed at a high marginal rate.

Child pays: non-taxable, funding the inheritance tax

If an adult child with income is both policyholder and beneficiary, the parent is the insured, and the child pays the premiums from their own income, the benefit on the parent’s death is the child’s own property and non-taxable. This tax-free benefit is a classic way to fund the inheritance tax on the rest of the estate.

💡 The key is that the child must genuinely have income and the ability to pay.
If the parent funds the child’s premiums, Article 8(2) substance-over-form re-characterises the benefit as an estate asset.

Cross-contract: watch for gift tax

If the father is the policyholder (paying premiums), the mother is the insured, and the child is the beneficiary, then on the mother’s death the child’s benefit is treated as a gift from the father to the child, and gift tax applies. Because the father is still alive, this is a gift, not an inheritance.

Shared premiums: apportioned tax

If a parent pays for a while and the child later takes over the premiums, the sources are mixed: only the decedent’s share is inheritance-taxable, and the child’s share is non-taxable. You must be able to prove each source with bank transfer records and proof of income.

Frequently asked questions

Q. Isn’t insurance money outside the estate, so no inheritance tax?

A. No. Under civil law a death benefit is the beneficiary’s own property, but tax law (Article 8) deems a benefit funded by the decedent’s premiums to be an estate asset and taxes it. The different treatment under civil law and tax law is the biggest source of confusion.

Q. Is it automatically non-taxable if I make the child the policyholder?

A. Changing only the name is not enough. The child must have real income and pay the premiums from it to be non-taxable. If the parent covers the premiums, Article 8(2) substance taxation makes it an estate asset.

Q. What if the beneficiary is not an heir?

A. If the decedent paid the premiums, it is still inheritance-taxable. But a non-heir beneficiary is treated as a legatee, and the treatment of deductions and joint tax liability can differ from that of an heir.

Q. Is inheritance tax always due on a death benefit?

A. Even as a deemed estate asset, if the combined estate is within the lump-sum deduction (KRW 500 million) and the spousal deduction, the actual inheritance tax can be zero. Use the inheritance tax impact estimate here to preview the rough burden.

Q. Can I file directly from this result?

A. This tool is a reference estimate for understanding the tax structure. Proof of the premium source, the financial-asset inheritance deduction, the spousal deduction, and 10-year prior-gift aggregation all depend on your situation, so confirm with a tax professional before filing.

Tips and cautions

Document the premium source: because who paid decides the tax, keep bank transfer records and proof of income.
Remember substance taxation: the real payer, not the name, governs (Article 8(2)). Parent funds routed through a child’s account become an estate asset.
Check the insured: this determination assumes a death benefit where the insured is the decedent. A different insured changes the logic.
Use the financial-asset deduction: a death benefit may qualify for the financial-asset inheritance deduction (20% of net financial assets, up to KRW 200 million). It is not reflected here, so apply it when filing.
Plan ahead: set the policyholder and beneficiary structure at inception. A name change close to death can be denied under substance taxation.

Check your death benefit taxation now

Enter the benefit and the premium payer structure to see the inheritance / gift / non-taxable verdict and the apportioned amounts instantly.

This is a reference tool based on the Korean Inheritance and Gift Tax Act (in force 2 January 2026), Articles 8, 34, 26, and Enforcement Decree Article 4. Confirm the details with a tax professional before filing.