Raising inheritance-tax cash by selling inherited property — a schedule counted back from the 10-month deadline

In short: to raise inheritance-tax cash by selling inherited property, the starting point is the filing and payment deadline — 10 months from the day after you learn the inheritance has begun (Inheritance Tax Act Arts. 27 and 33). Counted back, only about half a year is really left for the sale itself. The order is "registration (into the heirs' names) → appraisal and listing → sale contract → settlement and tax payment"; registration goes to a judicial scrivener, tax and exemptions to a tax accountant, division disputes to a lawyer. A sale within about 3 years and 10 months of the start of inheritance can cut the transfer tax via the acquisition-cost add-back (Special Taxation Measures Act Art. 39); if 10 months is not enough, deferred payment and payment-in-kind are options. Move early, counting back from the deadline, so you are not forced to drop the price.

Inheritance tax is a tax you pay, in principle, "in cash, at once." If your savings fall short, you sell inherited property to raise the cash. But by the time you go to sell, the deadline looms and you may have to sell even at a knock-down price. This article is for heirs who want to sell inherited property to pay inheritance tax: how to build a sale schedule counted back from the 10 months, drawn from the Inheritance Tax Act, the Special Taxation Measures Act and National Tax Agency guidance. Filing and whether exemptions apply are a tax accountant's; registration is a judicial scrivener's; division disputes are a lawyer's — we focus on the sale.

When counting back from the 10-month deadline, what first?

Everything starts from the filing and payment deadline.

The inheritance-tax return must be filed within 10 months from the day after you learn the inheritance has begun (usually the day of death) (Art. 27). Payment is also due by that filing deadline, and the tax is, in principle, paid in cash, at once (Art. 33 / accessed 27 September 2026).

Deadline	Content	Basis
10 months from the day after learning of the inheritance	Filing and payment of inheritance tax (cash, at once, in principle)	Inheritance Tax Act Arts. 27, 33
About 3 years and 10 months from the start of inheritance	Deadline for a sale to use the acquisition-cost add-back (Art. 39)	Special Taxation Measures Act Art. 39
3 years from learning of acquisition by inheritance	Duty to apply for registration (subject to a non-penal fine)	Real Property Registration Act Art. 76-2

If you "pay tax with the sale proceeds," settlement (receipt of the balance) must fall within the payment deadline. Contract-to-settlement often takes several weeks to over a month, and finding a buyer also takes time. That is why counting back matters. The overall approach to selling inherited property is at inheritance and vacant-house consultation; selling from the starting point of registration being mandatory is at what changed when registration became mandatory.

How do you count the sale schedule back from the 10 months?

Laid out in reverse; a rough guide that shifts with the property, area and how the division proceeds.

Counting back	What to do	Who
Start–2 months	Grasp the estate, decide the division approach, prepare registration	Heirs / judicial scrivener
–3 months	Registration (moving title to the heirs is a precondition of selling), appraisal	Judicial scrivener / us
–4 months	Set the listing price, begin the sale	Us
–7 months	Decide the buyer, sale contract	Us
–9 months	Settlement, receive the balance (= securing the tax cash)	Us / judicial scrivener
10 months	File and pay inheritance tax	Tax accountant / heirs

The commonest bottleneck is registration and estate division. While title is still the decedent's, you can neither contract to sell nor transfer ownership. If the division agreement stalls, registration and the sale stall too, and the 10 months vanish. If there is a dispute over division, consult a lawyer early and run it in parallel with the sale. Registration became mandatory from 1 April 2024 (Art. 76-2), within 3 years of learning of acquisition — unavoidable even when you intend to sell.

The time really usable for listing is about half of the 10 months. Deciding "by when to list" at the outset helps you avoid being beaten down on price in the back half.

How do you keep the price from falling under a rushed sale?

The biggest risk of a deadline-driven sale is being taken advantage of and bought cheap. The remedy comes down to moving early, but concretely:

Move	Aim
Sort registration, boundaries and documents first	The buyer can review with confidence; contract-to-settlement is fast
Bring the listing forward	A longer review window; you can compare several buyers
Grasp the floor (the net you need for tax) first	You can judge calmly how far you can go on discounts
Compare buy-out and brokerage	If time is short, a "certain but cheaper buy-out" is an option; first test the response via brokerage

Unclear boundaries make the buyer wait for a survey and delay settlement. A confirmed survey can take weeks to months — heavy within the 10 months. The more you bring forward the steps that make it saleable (registration, boundaries, documents), the lower the discount pressure later. The practice of selling inherited property is also at how a sale by conversion-division proceeds.

If a sale within 10 months looks unlikely, rather than rushing at a knock-down price, consider deferred payment or payment-in-kind (below) with a tax accountant — it may better protect your net. Start comparing the sale and the payment method early.

Can the small-lot exemption and acquisition-cost add-back coexist with a sale? (leave the judgment to a tax accountant)

A sale and tax exemptions can clash or coexist depending on timing. This is a tax accountant's domain, so we set out only the points that bear on the sale schedule.

The acquisition-cost add-back (Special Taxation Measures Act Art. 39) lets a person who paid inheritance tax add a portion of that tax to the acquisition cost when computing the transfer gain on a sale of inherited property. The add-back is "inheritance tax × (the sold asset's inheritance-tax value ÷ that person's inheritance-tax base)." The window is from the day after the start of inheritance to the day 3 years after the day after the filing deadline — i.e. roughly within 3 years and 10 months of the start of inheritance (accessed 27 September 2026). Most sales to pay tax fall inside this window, so the transfer tax can be cut.

Care is needed with the small-lot residential land exemption (Art. 69-4). It lowers the inheritance-tax base by reducing the valuation of residential/business/rental-business land. But some categories require holding and continuing residence/business until the filing deadline, so selling before the deadline (10 months) can fail the continuation requirement and lose the exemption (some categories, such as residential land acquired by a spouse, do not require continued holding).

Exemption	Relation to a sale	Deadline guide
Acquisition-cost add-back (Art. 39)	A sale within the window compresses the transfer tax	About 3 years 10 months from start of inheritance
Small-lot residential land exemption (Art. 69-4)	Some categories require holding until the filing deadline; an early sale can lose it	The filing deadline (10 months)

So if the "land you want the small-lot exemption on" and the "land you want to sell for tax cash" are the same, when you sell drives whether the exemption applies. Which land to sell when, and whether the exemptions apply, must be confirmed with a tax accountant. We look at each property's saleability, likely price and schedule; the tax accountant looks at whether the exemptions apply — separately.

How do deferred payment and payment-in-kind compare with a sale?

When a sale is not in time, or does not cover the tax, deferred payment and payment-in-kind are the fallbacks. Both are exceptions to the cash-at-once rule, with strict requirements, presupposing a tax accountant's review.

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Deferred payment (Art. 38) lets you pay by annual instalments, with security, where the tax exceeds ¥100,000 and there is a reason making cash payment difficult (no security if the deferred amount is ¥1,000,000 or less and the period 3 years or less). Interest tax accrues during the period.

Payment-in-kind (Art. 41) applies where even deferred payment leaves cash payment difficult, up to that difficult amount, paying with the inherited property itself. Eligible property is ranked: 1st — real property, ships, government/local bonds, listed shares, etc.; 2nd — unlisted shares; 3rd — movables. The in-kind receipt value is, in principle, the property's value used as the basis of the inheritance-tax base (accessed 27 September 2026).

Method	Suits	Note
Sell and pay in cash	You have saleable property and can meet the deadline	Beware rushed discounts; use the add-back
Deferred payment (Art. 38)	At-once is impossible but instalments are payable	Security, interest tax; requirement review
Payment-in-kind (Art. 41)	Even deferral is difficult; you hold hard-to-sell property	Presupposes deferral; strict ranking, receipt value, requirements

Saleable property is often better sold on the market to preserve the net, while for hard-to-sell property or a missed deadline, deferral/in-kind are realistic fallbacks. Which to choose is decided by laying the sale prospect (us) beside the deferral/in-kind requirements and tax (tax accountant). The way of thinking about how to let go is also at is it better to hand land to the state or sell it?.

Who should you consult?

Appraisal, the design of how/at what price/on what schedule to sell, and brokerage of the sale are handled by Yotsuba Real Estate Co., Ltd. (licensed real estate agent, Tokyo Governor (1) No. 113304). The roles split:

What to do	Who
Inheritance-tax filing, deferral/in-kind, whether the small-lot exemption and acquisition-cost add-back apply, transfer-tax calculation	Tax accountant
Registration (moving title from the decedent to the heirs)	Judicial scrivener
Negotiation/mediation where the estate division is disputed	Lawyer
Appraisal, design of how to sell, brokerage	Licensed real estate agent (us)

Tax and exemptions to a tax accountant, registration to a judicial scrivener, division disputes to a lawyer — each engaged by you directly. These are independent business entities, engaged separately from us. We neither pay nor accept referral fees or introduction commissions. Consultation is free of charge.

Frequently asked questions

Q. By when must I sell to pay inheritance tax with the proceeds?
A. The filing and payment deadline is 10 months from the day after you learn the inheritance has begun (Arts. 27, 33). If you pay with the proceeds, settlement (receipt of the balance) must fall within that deadline. Allowing for contract-to-settlement time and listing-to-buyer time, it is safe to list within 3–4 months of the start of inheritance. Delays in registration or division push the whole timeline, so proceed in parallel with a judicial scrivener and tax accountant early.

Q. Selling inherited land triggers transfer tax — is there a way to reduce it?
A. If a person who paid inheritance tax sells inherited property within roughly 3 years and 10 months of the start of inheritance, the acquisition-cost add-back (Art. 39) can add a portion of the inheritance tax paid to the acquisition cost and compress the transfer gain. Most tax-paying sales fall within this window. Whether it applies, the add-back amount and the calculation are a tax accountant's — please confirm.

Q. Is it fine to sell land using the small-lot exemption to pay tax?
A. Care is needed for some categories. The small-lot residential land exemption (Art. 69-4) requires, for some categories, holding and continuing residence/business until the filing deadline; selling before the deadline (10 months) can fail the continuation requirement and lose the exemption (some categories, such as residential land acquired by a spouse, do not require it). Since when you sell can change whether it applies, decide the timing with a tax accountant.

Q. What happens if I cannot sell within 10 months?
A. If you cannot pay in cash by the deadline, and you meet the requirements, there are deferred payment (Art. 38 — annual instalments with security) and, where even deferral is difficult, payment-in-kind (Art. 41 — paying with the inherited property itself). Both have strict requirements, presupposing a tax accountant's review. Saleable property is often better sold on the market to preserve the net, so before rushing at a knock-down price, compare the sale prospect against deferral/in-kind.

Sources (primary)

• NTA Tax Answer No. 4205, "Filing and payment of inheritance tax" — the return is filed within 10 months from the day after learning of the inheritance = Inheritance Tax Act Art. 27; payment is by the filing deadline, in cash at once in principle = Art. 33. Accessed 27 September 2026.
• NTA Tax Answer No. 4211, "Deferred payment of inheritance tax" / No. 4214, "Payment-in-kind of inheritance tax" — deferral = tax over ¥100,000, a reason making cash payment difficult, security, instalments (Art. 38); in-kind = where even deferral leaves cash payment difficult, ranking (1st: real property, ships, government/local bonds, listed shares, etc.), receipt value (Art. 41). Accessed 27 September 2026.
• NTA Tax Answer No. 3267, "Special provision on acquisition cost when transferring inherited property" — Special Taxation Measures Act Art. 39: where a person who paid inheritance tax transfers inherited property from the day after the start of inheritance to the day 3 years after the day after the filing deadline (≈ 3 years 10 months), a portion of the inheritance tax is added to the acquisition cost. Add-back = inheritance tax × (sold asset's inheritance-tax value ÷ tax base). Accessed 27 September 2026.
• e-Gov "租税特別措置法" (Special Taxation Measures Act) — Art. 69-4 (small-lot residential land exemption for the inheritance-tax base; some categories require holding/continuing business until the filing deadline); Art. 39 (acquisition-cost add-back). Accessed 27 September 2026. / MOJ, "Mandatory application for inheritance registration" — Real Property Registration Act Art. 76-2, in force 1 April 2024, within 3 years of learning of acquisition. Accessed 27 September 2026.

The tax amount, whether deferral/in-kind is available, and whether the small-lot exemption or acquisition-cost add-back applies vary with the property, the manner of division and each person's circumstances. This article does not judge any individual case. Confirm the tax amount and exemptions with a tax accountant, registration with a judicial scrivener, and division disputes with a lawyer. Deadlines, requirements and forms may be amended; confirm the NTA and the competent tax office's guidance directly at the outset.

This article is general information. It does not judge or guarantee the sale price of any particular property, the tax amount, or the application of any exemption. Appraisal, the design of how to sell, and brokerage are undertaken by Yotsuba Real Estate Co., Ltd. (licensed real estate agent). Inheritance tax, exemptions and transfer tax by a tax accountant; registration by a judicial scrivener; division disputes by a lawyer — independent business entities, engaged separately and directly. We neither pay nor accept referral fees.

About the author

Joji Uramatsu — licensed real estate transaction specialist (Tokyo Governor registration No. 293544) and administrative scrivener (registration No. 25087022). Representative Director, Yotsuba Real Estate Co., Ltd. (licensed real estate agent, Tokyo Governor (1) No. 113304); principal, Yotsuba Administrative Scrivener Office. Kohinata, Bunkyo, Tokyo, about five minutes' walk from Myogadani station. Property and procedure (administrative/inheritance) are put on the same table. Full profile: author page.