Assets but No Cash: Renunciation and the Deadlines That Decide a Japanese Estate

"There are plenty of assets. There is almost no cash." We hear this constantly from families whose wealth sits in real estate and rights rather than deposits. In a Japanese succession, the outcome is decided not by the size of the estate but by how much cash can be produced before a deadline — and when the cash falls short, the options left to an heir are remarkably few.

There Are Two Deadlines, and the Shorter One Comes First

An inheritance tax return is due within ten months from the day following the day on which the heir became aware that the inheritance had commenced (Inheritance Tax Act, Art. 27(1)). Payment runs on the same clock: a person who files a timely return must pay by that filing deadline (Art. 33).

The period for deciding whether to accept or renounce, by contrast, is three months from the time the heir became aware that the inheritance had commenced for their benefit (Civil Code, Art. 915(1)). Renunciation is effected by a declaration to the family court (Art. 938). The period may be extended by the family court on application by an interested party or a public prosecutor.

The decision "do I renounce" therefore normally falls due well before the question "can I fund the tax" is answered. The two periods run from different triggers, however: the first from when the heir became aware that the inheritance had commenced for their own benefit, the second from the day after they became aware that it had commenced. Where both start on the same day the gap is seven months, but a divergence in the starting points changes it. Either way, the heir is asked to make an irreversible choice while valuations are unsettled and it is still unclear what can be converted to cash. That is the first constraint.

Cash in Full Is the Rule; Deferral and Payment in Kind Are Conditional Exceptions

It is often assumed that an heir who cannot pay may simply pay in instalments. The statute is narrower. Deferred payment is available where the inheritance tax payable exceeds ¥100,000 and grounds exist making cash payment by the due date difficult — and then only on the taxpayer's application and with the district director's permission (Inheritance Tax Act, Art. 38). The term is in principle five years; where real property and similar assets account for one-half or more of the value of the taxable estate, the portion corresponding to those assets may run up to fifteen years and the remainder up to ten. Interest tax is payable alongside each instalment (Art. 52).

Payment in kind sits one step further out: it requires grounds making cash payment difficult even under deferral, and again turns on application and permission (Art. 41). Neither is a scheme that clears simply because it is requested.

Renunciation Does Not Skip a Rank — It Erases the Heir Retroactively

A person who renounces is deemed never to have been an heir with respect to that inheritance (Civil Code, Art. 939). The consequence is larger than it first appears.

A decedent's children are heirs (Art. 887(1)). Lineal ascendants become heirs as the next rank (Art. 889(1)(i)) only where no person at all remains who would be an heir under Art. 887, substitutes included, with nearer degrees taking priority.

What is most often missed is substitution. A child's issue take by substitution only where the child died before the inheritance commenced, fell under the grounds for disqualification, or lost the right of inheritance through disinheritance (Art. 887(2)). Renunciation is not on that list. Renouncing does not pass the estate down to grandchildren. The converse matters just as much: where a child died before the inheritance commenced and left issue, that grandchild is an heir under the same provision. The bare fact that every other child renounced is therefore not enough to shift the rank; the rank shifts only when no one remains who would be an heir under Art. 887, that grandchild included.

The destination is not always fixed by the statutory ranking alone. A decedent may determine the shares of co-heirs by will (Civil Code, Art. 902(1)), specify the method of dividing the estate (Art. 908(1)), and dispose of property by comprehensive or specific bequest (Art. 964). Absent such provisions, however, a single procedural step taken because there was no cash hands over to the statutory ranking the question of who the heirs are. What the ranking does not decide is which asset goes to whom. That is settled afterwards, by division of the estate among the co-heirs so identified: division takes account of the kind and nature of the property and rights in the estate and of each heir's age, occupation, physical and mental condition and circumstances of life, among all other circumstances (Civil Code, Art. 906); co-heirs may divide by agreement at any time, and where agreement cannot be reached or cannot be had, any co-heir may apply to the family court for division (Art. 907). Either way, it is settled somewhere beyond the decedent's reach.

Renouncing Does Not Shrink the Tax Base

The basic estate deduction is ¥30 million plus ¥6 million multiplied by the number of the decedent's heirs (Inheritance Tax Act, Art. 15(1)). That count is expressly determined as if no renunciation had occurred (Art. 15(2)). Renunciation neither reduces the deduction nor enlarges it.

Rates are progressive by bracket: 55% applies to the portion exceeding ¥600 million of each notional share apportioned by statutory inheritance shares (Art. 16). On aggregate taxable value of ¥2 billion with a single heir, the deduction is ¥36 million, the taxable estate ¥1.964 billion, and a mechanical application of the Art. 16 rate table yields total inheritance tax of ¥1.0082 billion — roughly half the taxable value.

The gateway to that base is valuation. The Act provides only that property is valued at its fair market value at the time of acquisition (Art. 22). The valuation provisions (Arts. 22 to 26-2) prescribe specific methods for superficies and emphyteusis, spousal residence rights, rights to periodic payments, and standing timber. Copyrights and shares without a market price are not among them; their computation is not set out in the Act itself.

The Constraints and Their Sources

On liquidity: life insurance proceeds received on the decedent's death are deemed acquired by inheritance or bequest (Inheritance Tax Act, Art. 3(1)(i)). The exemption, however, applies to proceeds "acquired by an heir" (Art. 12(1)(vi)), and Art. 3(1) expressly excludes a person who has renounced from the term "heir" as used there. The statute plainly contemplates that a renouncing beneficiary may still receive the proceeds — but they are then deemed acquired by bequest, and the exemption does not apply. Note that the headcount used to compute the exemption cap is still determined as if no renunciation had occurred.

On destination: trust property is defined as property belonging to the trustee that is to be managed or disposed of under the trust (Trust Act, Art. 2(3)), and is distinguished from the trustee's own property — property belonging to the trustee that is not trust property (Art. 2(8)). Under a trust created by contract, the assets come to belong to the trustee and cease to be the settlor's property available for division among heirs. A trust may also be created by will, or by a declaration under which the settlor is themselves the trustee (Art. 3); in the last case no change of owner occurs at all. Taxation is a separate matter in every case. Where a trust that already has a beneficiary or equivalent comes to have a new one without adequate consideration being borne, that person is deemed to have acquired the trust interest from the former beneficiary or equivalent by gift — or by bequest, where the new beneficiary or equivalent arose as a result of the death of that former beneficiary or equivalent (Inheritance Tax Act, Art. 9-2(2)); where the trust itself takes effect on the settlor's death, Art. 9-2(1) applies. A trust is not a way around inheritance tax. During the holding period, income attributable to trust property is deemed the beneficiary's income (Income Tax Act, Art. 13(1)) and taxed annually, while the acquisition itself is exempt from income tax as property acquired by inheritance or bequest (Art. 9(1)(xvii)).

On valuation: holding assets through a company changes the subject of inheritance from the asset to the shares. That move is not free. Where an asset that gives rise to capital gains is transferred to a corporation by gift, or to a corporation for consideration markedly below value, it is deemed disposed of at the value prevailing at that time (Income Tax Act, Art. 59(1)). Building the structure can accelerate tax rather than defer it.

Treat It as a Structural Question

In our experience, estates fail not because the assets are too small but because the composition of the assets and the sequence of the deadlines do not fit together. Three things to confirm:

• How much can be moved as money within ten months from the day following the day you became aware that the inheritance had commenced?
• Does the bulk of the estate consist of assets that take time to convert?
• Is the destination governed by a will or a contract — or by the statutory ranking?

Map these onto a single structural diagram, then set out what must be settled by each deadline. Succession is often treated as a question for later life, but the ordering of these deadlines does not consult anyone's age. It is a design matter for calm periods, not for the ten months after.

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.