Holding Company, Operating Company, Ippan Shadan Hojin: What the Statutes Actually Require of Each Layer

"The profits, the shares, the real estate — it has all collected in my own name." We hear this from owners whose businesses have reached a certain scale, and the answer usually offered is the three-layer structure: a holding company, an operating company, and an ippan shadan hojin (general incorporated association). But adding layers does not, by itself, make anything lighter. What determines the substance of the structure is the set of requirements the statutes impose between the layers.

The Holding Company Layer: The Dividends-Received Exclusion

Dividends a domestic corporation receives from another domestic corporation are excluded from gross revenue under Article 23(1) of the Corporation Tax Act, by share category. Only wholly-owned subsidiary shares qualify for exclusion of the full amount, and Article 23(5) defines them as shares in another domestic corporation with which a complete-control relationship existed throughout the calculation period for the dividend, as prescribed by Cabinet Order. Holding 100% on the closing date is not the test; the relationship must span the period. In the other categories, only part of the dividend is excluded.

Article 23(7) adds that the exclusion applies only where the tax return carries a schedule setting out the excluded amount and its computation — and the exclusion is capped at the amount stated. A procedural omission forfeits the substantive benefit outright.

The Operating Company Layer: Remuneration and Retirement Benefits

Setting aside the categories the opening clause carves out — retirement benefits that are not performance-linked, and the employee-duty portion paid to a director who also serves as an employee — remuneration paid to directors is deductible only if it falls within one of the categories listed in Article 34(1) of the Corporation Tax Act. Item (i) — fixed periodic remuneration — covers remuneration paid at intervals of one month or less where the amount paid at each payment date in the fiscal year is identical. Article 34(2) then denies deduction for any portion that is unreasonably high, and Article 70(i) of the Enforcement Order sets the test: the director's duties and what comparable corporations of similar scale in the same industry pay their directors, among other factors. A design that fixes the figure first and constructs the duties afterwards will not survive that test.

Retirement benefits follow the same logic. Article 70(ii) of the Enforcement Order denies deduction for amounts exceeding what is reasonable in light of the period of service, the circumstances of the retirement, and payments by comparable corporations. On the recipient's side, Article 30(2) of the Income Tax Act computes retirement income as one-half of the amount remaining after the retirement income deduction. That one-half does not apply at all where the recipient's service as a director was five years or less; and where non-director service was five years or less, it reaches only the first ¥3 million of the remaining amount.

The Association Layer: The Most Misunderstood of the Three

An ippan shadan hojin has no equity interests, which gives rise to the claim that assets held in its name fall outside the individual's estate. The Inheritance Tax Act has installed several counter-provisions against exactly that form.

Article 66-2 provides that where a director — including a person who ceased to be one less than five years earlier — dies and the association qualifies as a "specified ippan shadan hojin," an amount equal to its net assets at the time of the succession divided by the number of family-related directors plus one is deemed acquired by bequest from the decedent, and inheritance tax is imposed on the association. Article 66-2(2)(iii) sets two alternative tests: under (a), the proportion of family-related directors to total directors immediately before the succession exceeds one-half; under (b), the periods within the preceding five years during which that proportion exceeded one-half total three years or more. Meeting either is sufficient.

What gets missed is the reach of "family-related director." Article 66-2(2)(ii) covers the decedent, their spouse, relatives within the third degree, and persons in a special relationship as prescribed by Cabinet Order — which Article 34(3) of the Enforcement Order extends to the decedent's employees, persons who maintain their livelihood from property received from the decedent, and officers and employees of other corporations in which the decedent serves as an officer. Appointing unrelated business contacts or one's own staff to the board does not necessarily reduce the ratio at all.

Article 66(4) goes further: where a gift or bequest to a corporation without equity interests is found to unduly reduce the inheritance or gift tax burden of the donor's relatives or others in a special relationship, the corporation is treated as an individual and taxed accordingly.

A Structure Is Not Designed Once — It Is Operated

The visibility assumption for foreign assets has changed too. A resident (excluding non-permanent residents) holding foreign assets exceeding ¥50 million in aggregate as of December 31 must file an Overseas Assets Report by June 30 of the following year (Act on Submission of Reports concerning Overseas Wire Transfers, Art. 5(1)). None of these requirements is tested on one common timeline. Three things to confirm:

• What function does each layer perform? A layer whose function cannot be articulated is form, not structure.
• When is each requirement tested — across a dividend calculation period, immediately before a succession, over the preceding five years, or on each December 31?
• Are the procedural requirements met? A schedule attached to a return carries the same weight as the substantive conditions.

A structure is not complete when it is built. It becomes meaningful only by surviving the tests applied to it year after year. Planning within the fiscal year, and designing on the assumption of annual review, is where this 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.