🇰🇷 This calculator is based on Korean tax law — the Inheritance and Gift Tax Act and its Enforcement Decree (2026 rules).
Amounts are in Korean won (KRW), and the valuation method follows the National Tax Service rules for virtual assets. Use it as a reference and consult a licensed Korean tax advisor before filing.
What is the Virtual Asset Inheritance & Gift Valuation Calculator?
This calculator values cryptocurrency — such as Bitcoin (BTC) and Ethereum (ETH) — that you receive by gift from a parent or spouse, or by inheritance after a death, using the method prescribed by Korean tax law, and then estimates the resulting gift tax or inheritance tax.
Because crypto prices can swing dramatically within a single day, the exact valuation date heavily affects the tax.
For that reason, the law does not use a single day’s closing price. Instead it uses the simple average of the daily average prices over the one month before and the one month after the valuation date (about two months total).
First, the calculator explains the statutory valuation method and sums the valuation of each coin.
Second, it computes the gift tax or inheritance tax on that value using 2026 rates and deductions. You can enter several coins at once, and entering the valuation date also shows the two-month valuation window and the filing deadline.
Who is this for?
- • People gifting coins to a child or spouse
- • Heirs who inherited virtual assets after a family member’s death
- • Investors estimating the tax on a crypto gift or inheritance in advance
- • Anyone checking the filing deadline and valuation window
- • People wanting a rough figure before meeting a tax advisor
The Statutory Valuation Method (core)
Article 65(2) of the Inheritance and Gift Tax Act delegates crypto valuation to the Enforcement Decree, and Article 60(2) of the Decree sets the concrete method.
The key rule is “the average of the daily average prices published over each of the one month before and after the valuation date.”
1. Coins on NTS-designated exchanges (the four KRW exchanges)
For coins traded on exchanges designated by the Commissioner of the National Tax Service (NTS) among the virtual-asset operators accepted under the Act on Reporting and Using Specified Financial Transaction Information:
- • Designated exchanges: Upbit · Bithumb · Coinone · Korbit (the four KRW-market exchanges)
- • Valuation window: 1 month before + 1 month after the valuation date ≈ two months total
- • Value: the simple average of each day’s daily average price over that period
- • Valuation date: the gift date for gifts; the date of death for inheritances
2. Other virtual assets
Coins not listed on the four exchanges, or held on overseas exchanges or private wallets, use:
- • the daily average price on the trade date published by the operator or a comparable operator
- • or the price published at the closing time, or another reasonably recognized value
- • coins with no established market price require separate review (comparable trades, similar-asset valuation)
Why a two-month average instead of one day’s price?
Crypto is highly volatile, and a single-point price can be manipulated.
If only the closing price on the valuation date were used, one could pick a spiking or crashing day to distort the tax base.
A two-month average smooths out temporary swings and stabilizes the tax base.
💡 The precise two-month average is calculated automatically by the Hometax “inheritance/gift asset valuation” service using the four exchanges’ published prices.
This calculator’s “before/after one-month average” option approximates it as the arithmetic mean of the two monthly averages.
How gift tax is calculated
Once the value is set, gift tax follows this order: subtract the relationship-based gift deduction from the taxable amount to get the tax base, apply the five-band progressive rate, and then apply the filing credit.
Gift deductions (10-year aggregate, Art. 53)
- • Spouse: KRW 600 million
- • Lineal ascendant → adult child: KRW 50 million (KRW 20 million if the recipient is a minor)
- • Lineal descendant → parent/grandparent: KRW 50 million
- • Other relatives (blood within 4 degrees, in-laws within 3 degrees): KRW 10 million
- • Non-relatives: no deduction
Gifts received from the same person (a lineal ascendant is aggregated with their spouse) within 10 years are taxed together, and the deduction applies once per 10-year period.
Tax rates (Art. 26, shared with inheritance tax)
- Up to KRW 100M → 10% (progressive deduction 0)
- 100M–500M → 20% (deduction 10M)
- 500M–1B → 30% (deduction 60M)
- 1B–3B → 40% (deduction 160M)
- Over 3B → 50% (deduction 460M)
The computed tax is “tax base × rate − progressive deduction.” Filing within the statutory deadline (three months from the end of the month containing the gift date) earns a 3% filing credit.
When a grandparent gifts to a grandchild, skipping a generation, the tax is surcharged by 30% (40% if the recipient is a minor and the amount exceeds KRW 2 billion).
How inheritance tax is calculated
Inheritance tax adds the crypto value to other estate assets (real estate, deposits, etc.), subtracts debts, public charges and funeral costs, and applies estate deductions to reach the tax base.
This calculator provides a rough estimate reflecting the standard lump-sum deduction of KRW 500 million and a simplified spouse deduction.
Key estate deductions
- • Lump-sum deduction: KRW 500 million (the greater of this or basic 200M + personal deductions, Art. 21)
- • Spouse deduction: min KRW 500 million to max KRW 3 billion (lesser of actual inheritance and the statutory-share cap, Art. 19)
- • Filing credit: 3% of computed tax (Art. 69)
⚠️ Crypto does not qualify for the financial-asset deduction
Financial assets like deposits, stocks and bonds get an extra deduction of 20% of net financial assets (capped at KRW 200 million).
Virtual assets are not “financial assets” under the Act, so they do not receive this deduction.
For the same amount, inheriting coins may yield a smaller deduction than inheriting deposits.
Actual inheritance tax varies widely with personal deductions (children, elderly, disabled), the co-residence house deduction, and the family-business deduction.
Treat this result as a reference estimate reflecting only the lump-sum and spouse deductions, and consult a tax professional before filing.
How to use
Step 1: Choose the transfer type
Pick “Gift” for a lifetime transfer or “Inheritance” for a transfer on death.
Entering the valuation date shows the valuation window and filing deadline.
Step 2: Enter coins, quantity and unit price
Enter the name and quantity, then either type the two-month average unit price directly
or choose “before/after one-month average” and enter each month’s average price.
Step 3: Enter relationship / estate details
For gifts, enter the relationship and any prior gifts within 10 years.
For inheritance, enter other estate assets, debts and whether there is a spouse.
Step 4: Review the result
See the tax base, computed tax, filing credit, payable tax and effective rate.
Per-coin valuations, the valuation window and the filing deadline are shown too.
Frequently asked questions
Q. What exactly is the valuation date?
A. For gifts it is the acquisition date (gift date); for inheritance it is the date the decedent died.
The one month before and after that date is averaged.
Q. Which exchange prices are used?
A. The published daily average prices of the NTS-designated exchanges (Upbit, Bithumb, Coinone, Korbit).
If a coin trades on one of these, that exchange’s published price is the basis.
Q. How are overseas or wallet-held coins valued?
A. Coins not on the four exchanges are “other virtual assets,” valued at the operator’s published daily average or closing-time price, or another reasonably recognized value.
Coins that are hard to value should always be reviewed by a professional.
Q. Can the inheritance result differ from reality?
A. Yes. This is a rough estimate reflecting only the lump-sum (KRW 500M) and a simplified spouse deduction.
Personal, co-residence and family-business deductions are not included, so use it only as a reference.
Q. When must I file?
A. Gift tax: within three months from the end of the month of the gift. Inheritance tax: within six months from the end of the month of death (nine months for non-residents).
Filing on time earns a 3% credit on the computed tax.
Tips & cautions
- Keep valuation records: save the four exchanges’ two-month daily-average data with your filing.
- Trace wallets: for inheritance, identify all of the decedent’s exchange accounts and private wallets to avoid under-reporting.
- Beware of selling after a gift: selling soon after gifting to a spouse or lineal relative can trigger carryover taxation and erase the benefit.
- 10-year aggregation: include prior gifts, since they are aggregated for tax.
- Get advice: for large amounts or complex estates, a professional review is safest.
Estimate your crypto gift or inheritance tax now
Enter the coin, quantity and unit price to see the statutory value and estimated tax instantly.
Based on Korea’s 2026 Inheritance and Gift Tax Act. Consult a professional before filing.