SEISEI INSIGHTS — Succession

Lifetime Gift or Inheritance After Death: Not "Which Is Cheaper" but "How to Design It"

2026-06-16

"If I hand the house to my child now, will the tax be lighter than passing it on after I die?" People thinking about succession ask us this constantly. The answer is: it depends. Designed poorly, a lifetime gift can end up heavier. The real question is not whether to give, but through which regime, in what amount, and over how many years. Under Japanese rules, the options sort into three broad routes.

Three Routes

First, annual (calendar-year) gifting. The basic gift-tax deduction is ¥600,000 under the general rule (Inheritance Tax Act, Art. 21-5), but under Article 70-2-4 of the Act on Special Measures Concerning Taxation, a special ¥1.1 million per year is deducted. So a gift of up to ¥1.1 million in a year incurs no gift tax. Amounts above that are taxed at progressive rates and can be as heavy as inheritance tax. This route moves modest sums over a long horizon.

Second, the taxation system for settlement at the time of inheritance. Article 21-12 of the Inheritance Tax Act allows a cumulative special deduction of up to ¥25 million per specific donor. Within that range, no gift tax arises at the time of the gift. But this is deferral, not exemption: when the donor dies, the amount is folded back into the estate and the inheritance tax is recomputed. The portion above ¥25 million is taxed at a flat 20% at the time of the gift (Art. 21-13).

Third, do nothing and rely on inheritance after death. By using the basic deduction (¥30 million plus ¥6 million per statutory heir, Art. 15) and the spousal tax credit (Art. 19-2), the burden can sometimes be lighter than gifting during life.

Comparing the Routes — by Structure, Not by Numbers

Route	Deduction frame	When taxed	Where it fits
Annual gifting	¥1.1M/year (special)	At each gift	Moving small sums over time / large estates seeking to compress high rate bands
Settlement-at-inheritance	¥25M cumulative	Settled together at inheritance	Wanting to transfer a lump sum early, while accepting the recomputation at death
Inheritance after death	Basic deduction + spousal credit	At inheritance	Estates within the basic-deduction range / spouse-centered succession

The point is this: for larger estates, moving assets steadily and deliberately through annual gifting — and thereby shrinking the future estate itself — is what creates value. For estates that fall within the basic deduction, going straight to inheritance is often lighter than gifting. The same regime can be favorable for one person and unfavorable for another.

An Often-Missed Point — the Add-Back of Pre-Death Gifts

One thing must be built into any design. Article 19 of the Inheritance Tax Act provides that gifts received from the decedent within a defined period before the start of succession are added back into the estate and recomputed. The look-back period for this add-back was extended from the former three years to seven years (for the portion of add-back assets acquired earlier than three years, ¥1 million is deducted from the total). The extension applies on a phased basis, which makes "a burst of deathbed gifting to avoid the burden" structurally hard to rely on. If lifetime gifting is to be part of a succession plan, it must be planned years in advance.

Treat It as a Design Question

A gift does not necessarily lower the tax. But it has one certain advantage that inheritance does not: you can see with your own eyes who received what. Arrange it while living, or leave it to the family afterward. Laying estate size, family composition, and time horizon side by side on a single sheet — and testing each of the three routes against them — is where succession design begins.

This article provides general information on tax systems and does not constitute individual tax consultation. Specific filings and tax computations are handled by licensed partner tax accountants whom we introduce.

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