SEISEI INSIGHTS — M&A

Succession or Sale: The Structure Behind the Decision

2026-09-16

"Should I pass it to my son, or sell it?" We hear this question repeatedly from owner-managers who have run a business in Japan for two decades or more. It usually arrives framed as a matter of resolve. In practice, what separates the answers is not resolve — it is the structure sitting on the asset side.

The Unit of Decision Is the Asset, Not the Company

Succession versus sale tends to be discussed as a binary choice about one whole company. But the tax framework does not operate on the company as a whole; it operates on each asset according to its category. Shares in the operating company, rental investment property, land the business itself occupies — in both an inheritance and a disposal, each sits under a different set of provisions. The realistic starting point is therefore not "what do we do with the company" but "which asset falls into which category."

Whether a successor exists is merely a precondition for that work. If there is no successor, the succession option disappears; the question of what to do with the remaining assets does not.

The Cost on the Succession Side: A Progressive Inheritance Tax

Article 16 of the Inheritance Tax Act sets out the method: the aggregate taxable value less the basic deduction is apportioned according to statutory shares, each resulting amount is divided into brackets, a rate is applied to each, and the results are summed. Under the rate table in that article, amounts up to ¥10 million are taxed at 10%, while amounts exceeding ¥600 million are taxed at 55%. The larger the estate, the more the upper brackets actually bite.

The Small-Scale Land Reduction Varies by Use

This is where misunderstanding concentrates. Article 69-4(1) of the Act on Special Measures Concerning Taxation compresses the value included in the inheritance tax base for certain land acquired by inheritance or bequest. The compression is not uniform.

Category of landShare included in tax baseEffective reductionArea cap
Land used for a specified business20%80%400 m²
Land used by a specified family company20%80%400 m²
Specified residential land20%80%330 m²
Land used for a leasing business50%50%200 m²

Item (i) of that paragraph sets the included share at 20% for the first three; item (ii) sets it at 50% for land used for a leasing business. The area caps come from the items of Article 69-4(2).

What matters in practice: land underlying property held for rent falls, as a rule, on the item (ii) side — a 50% reduction, capped at 200 m². Article 69-4(3)(i) goes further and expressly excludes the real property leasing business from the "business" referred to in the specified-business category. The assumption that "the more real estate you hold, the more the 80% reduction works for you" does not carry over to rental property.

Even that 50% is not automatic. Article 69-4(3)(iv) excludes from the leasing-business category any land newly put to leasing use within three years before the inheritance opened — unless the decedent, or a relative sharing a household with the decedent, had been carrying on a qualifying leasing business continuously for more than three years up to the date of death. The same item further requires that the relative who acquires the land take over the decedent's leasing business between the opening of the inheritance and the filing deadline, continue to hold the land, and continue to use it for that business; alternatively, that a relative sharing a household with the decedent has held the land continuously from the opening of the inheritance until the filing deadline and has used it in their own leasing business continuously from before the inheritance until that deadline — two periods with different starting points, each of which must be satisfied. Acquiring property shortly before an inheritance in order to manufacture the category runs into that three-year rule.

There is a second, easily overlooked premise. Paragraph (1) opens with the case where "among the property acquired by an individual through inheritance or bequest, there is land…". The relief is directed at land the individual acquired through the inheritance itself. Where the property sits inside a company and what the heir receives is shares in that company, the object of succession is shares rather than land, and valuation proceeds under a different framework. Article 22 of the Inheritance Tax Act provides that property acquired by inheritance is valued at its market value at the time of acquisition; for unlisted shares with no market price, how that value is established becomes a separate question in its own right.

Using a holding company is, among other things, a choice between those two frameworks. Designing on the assumption that you can move the property into a company and continue to rely on the land relief starts the structure from a mismatch.

The Cost on the Sale Side: Capital Gains

Article 33 of the Income Tax Act defines capital gains as income arising from the transfer of assets. A transfer of unlisted shares constitutes a transfer of "general shares" — under Article 37-10(1) of the Act on Special Measures Concerning Taxation, shares other than listed shares — and is assessed separately from other income at 15% income tax on the taxable capital gain.

Two further layers apply. Special income tax for reconstruction is 2.1% of the base income tax amount (Article 13 of the Act on Special Measures for Securing Financial Resources for Reconstruction from the Great East Japan Earthquake), which adds 0.315 points on top of the 15. Local inhabitant tax applies under Article 35-2 of the Supplementary Provisions of the Local Tax Act at 2% prefectural and 3% municipal (1% and 4% for those domiciled in a designated city). The total is 20.315%.

Compared with the upper inheritance tax brackets, this is a flat rate over which you control the timing. The corollary is that once the gain is realised, there is no deferral left.

Not a Binary — an Allocation, Asset by Asset

No successor, a fast-moving sector, an asset-light operation: where those conditions coincide, continuing to hold is itself a form of erosion. Assets that generate stable rent and whose category and valuation framework are settled, by contrast, leave room to be placed into a longer succession design. It is not unusual for both to sit inside the same company.

Three things to confirm:

  • Does a successor actually exist? If not, succession is not an available option at all.
  • Which category does each asset fall into? The land category and the share class determine which provisions apply.
  • Does the heir receive the asset itself, or shares? That distinction separates two valuation frameworks.

Replacing "do I pass the company on or sell it" with "which asset, in which form, to whom" — that is what treating it as a structural question means.


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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