Tokyo residential land prices rose 6.5% in 2026, the fastest rate recorded in over three decades, according to the government’s annual land price survey published in March. That figure alone has moved real estate investment in Japan from a peripheral conversation among Asia-Pacific allocators to a primary one. The 2026 Asia Pacific Investor Intentions Survey from CBRE found that net buying intentions across the region reached 17% for the year, up from 13% in 2025, with Japan cited as the most preferred destination for cross-border capital. For high-net-worth foreigners evaluating a Tokyo acquisition, the market backdrop is constructive. The tax environment, however, changed materially on 19 December 2025, and understanding those changes before committing capital is no longer optional.

The 2026 Tax Reform Every Foreign Investor Needs to Read

The 令和8年度税制改正大綱 (FY2026 Tax Reform Outline), approved by Cabinet in late December 2025, rewrites the rules governing how rental real estate is valued for 相続税 (souzoku-zei, inheritance tax) and 贈与税 (zouyo-zei, gift tax) purposes. The changes take effect 1 January 2027, but the transition window is closing faster than most buyers realize.

Under the old framework, a rental マンション (manshon, Japanese usage for freehold condominium) purchased for ¥2.1 billion could be assessed for inheritance-tax purposes at roughly ¥420 million, a reduction of approximately 80%, through a combination of 路線価 (rosenka, the government’s published road-frontage land price, typically representing around 80% of market value in standard locations and as little as 50% in central Tokyo prime addresses) and building-depreciation mechanics. National Tax Agency case examples cited during the reform debate used exactly that scenario. That gap is now being closed.

Effective 1 January 2027, 貸付用不動産 (kashitsuke-you fudousan, rental or income-producing real estate) acquired or newly built within five years before the date of inheritance or gift will be valued at the 通常の取引価額 (normal transaction price), defined operationally as 80% of the acquisition price adjusted for land-price movements since purchase. The compression-arbitrage play that drove a significant share of high-value Tokyo acquisitions over the past decade is structurally narrowed for short-to-medium holding periods.

不動産小口化商品 (fudousan koguchika shouhin, fractional real estate products, including tokumei kumiai and trust-type structures) are treated more strictly still: valued at market transaction price regardless of holding period. For foreign buyers who were considering fractional products as a tax-efficient entry point, that structure is effectively obsolete as an inheritance-tax tool from 2027 onward.

What the Five-Year Carve-Out Means in Practice

The reform includes one transition provision that is generating documented urgency among Tokyo developers and landowners. Land already owned for five or more years as of the date the implementing ministerial ordinance is published, expected sometime in summer or autumn 2026, on which construction begins before that publication date, is exempt from the new valuation rule. The building itself may be completed after the ordinance drops; what matters is that the land tenure and construction commencement predate it.

For buyers who already hold Tokyo land, the arithmetic is straightforward: break ground before the ordinance is published and the long-term valuation benefits are preserved even if the completed building is inherited within five years of the inheritance event. For buyers who do not yet hold land, the carve-out is largely irrelevant. Their calculus shifts to the long-term hold model.

For properties held beyond the five-year threshold, the pre-reform framework remains fully in force. 貸家建付地 (kashiya tatetsuki chi, land under a leased building) is assessed using a formula that reduces self-use value by the product of the 借地権割合 (shakuchiken wariai, land-borrowing-right ratio) and the 借家権割合 (shakka-ken wariai, tenant’s-right ratio, set uniformly at 30%). In urban Tokyo, where the land-borrowing-right ratio typically runs 60% to 70%, full occupancy produces an assessed land value approximately 18% to 21% below bare-land valuation. The 小規模宅地等の特例 (shougibo takuchi-tou no tokurei, Small Residential Land Special Provision) then applies a further 50% reduction to rental land up to 200 square meters. On the building side, 固定資産税評価額 (kotei shisan-zei hyouka-gaku, fixed-asset tax assessed value) runs at roughly 60% of construction cost, and rental buildings receive an additional 30% reduction for the tenant’s right, bringing effective assessed value to approximately 42% of construction cost. The net effect: ¥100 million in construction capital translates to roughly ¥42 million in inheritance-tax assessed value for a long-term holder.

The investment horizon calculus has shifted decisively toward long-term hold. Buyers entering Tokyo real estate in 2026 with a five-to-ten-year or longer horizon retain access to the full suite of valuation mechanics. Those planning a three-year exit do not.

Mortgage Access, Acquisition Costs, and the Non-Resident Reality

Foreign buyers frequently arrive in Tokyo with the assumption that financing will be unavailable or prohibitively expensive. The reality in 2026 is more nuanced. Permanent residents holding 永住権 (eijuuken, Japanese permanent residency) have access to the full range of domestic mortgage products, including the 住宅ローン控除 (juutaku loan koujyo, the mortgage tax-credit scheme, extended through end of 2030 under the FY2026 reform). Non-residents and those on employment or investor visas face a narrower field: most major Japanese banks restrict mortgage lending to residents, and some require a minimum of three years of Japanese tax history. Several regional banks and a small number of international lenders active in Japan offer products for non-residents, typically at loan-to-value ratios of 50% to 70% and at rates that carry a meaningful premium over the standard domestic variable rate, which has moved modestly upward since the Bank of Japan’s policy normalization began in 2024.

The 住宅ローン控除 extension is relevant primarily for buyers who qualify as residents. The FY2026 reform lowered the eligible floor area from 50 square meters to 40 square meters, broadening eligibility for compact luxury units, though an income cap of ¥10 million applies. For mid-market new builds classified only as energy-standard-compliant (省エネ基準適合住宅), borrowing limits will be reduced from 2028 and eliminated thereafter, making higher-specification acquisitions more advantageous to complete now.

Acquisition costs for foreign buyers in Tokyo are predictable but material. 不動産取得税 (fudousan shutoku-zei, real estate acquisition tax) applies at a preferential rate of 3% rather than the standard 4%, a provision extended to 31 March 2031 under the FY2026 reform. 土地登録免許税 (tochi toroku menkyozei, land registration stamp duty on ownership transfer) applies at a preferential rate of 1.5% against the standard 2%, extended to 31 March 2029. Agent fees in Japan are regulated by statute at a maximum of 3% of the purchase price plus ¥60,000, plus consumption tax. On a ¥500 million transaction, that ceiling produces a fee of approximately ¥16.56 million inclusive of tax.

For a thorough walkthrough of the purchase process from visa status through 登記 (touki, the transfer of legal title recorded at the Legal Affairs Bureau), see Buying Property in Japan as a Foreigner: Complete Guide 2026.

Where Tokyo Prices Stand in April 2026

The government’s 2026 land price survey, published in March, confirmed that Tokyo residential land rose 6.5% year-on-year, with Minato-ku (港区) and Shibuya-ku (渋谷区) among the strongest performers within the 23 wards. Prime addresses in Azabu (麻布), Hiroo (広尾), and Shirokane (白金) have seen transaction prices for large-format freehold マンション units move well above ¥1.5 million per square meter in 2025 and early 2026, with the most sought-after floor plans in newer buildings in Azabudai Hills (麻布台ヒルズ) and adjacent addresses trading at ¥2 million per square meter and above.

New supply at the upper end remains constrained. The pipeline of large-format luxury condominium completions in Minato-ku through 2027 is limited, and the yen, while having recovered partially from its 2024 lows, remains at levels that make Tokyo assets meaningfully cheaper in dollar, euro, and Australian-dollar terms than they would have been five years ago. The CBRE 2026 survey noted that many investors expect prices to continue rising, a sentiment consistent with the structural undersupply in central Tokyo’s premium residential segment.

For buyers weighing direct ownership against listed real estate vehicles, the structural differences are significant. J-REIT vs Direct Property in Japan: A 2026 Comparison for Foreign Buyers covers liquidity, tax treatment, and control considerations in detail.

Due Diligence, the Signing Process, and Where Foreign Buyers Get Exposed

The single most common point of failure for foreign buyers in Tokyo is the 重要事項説明 (juuyou-jikou-setsumei, the statutory pre-contract disclosure meeting). Under Japanese law, a licensed 宅建士 (takken-shi, Japan’s licensed real-estate transaction specialist) must personally conduct this meeting, explain the property’s legal status, encumbrances, zoning, building compliance, and all material facts, and sign the disclosure document before any contract is executed. The meeting is conducted in Japanese. Most Tokyo agencies route foreign clients through English-speaking salespeople for the entirety of the transaction and produce a licensed specialist only at this final stage, at which point the client is expected to sign a document they cannot read, explained by a professional they have not previously met.

The 手付金 (tetsuke-kin, the earnest-money deposit, typically 10% of the purchase price) is paid at contract signing. On a ¥400 million transaction, that is ¥40 million committed before the buyer has had any meaningful relationship with the licensed specialist responsible for the disclosure. If material issues surface after signing, recovering the deposit is possible only under narrow statutory conditions.

Koukyuu operates differently. A licensed 宅建士 personally handles every stage of the engagement, from the initial consultation through viewings, negotiation, due diligence, the 重要事項説明, contract, and signing. The ¥300 million minimum transaction floor means every client receives the same senior-level continuity. There is no handoff to a junior salesperson at any point in the process.

For buyers evaluating title structure before committing to a specific asset, Freehold vs Leasehold Japan Real Estate: Complete Guide 2026 provides a grounded comparison of the two primary ownership structures available in Tokyo.

Rental Income, Blue-Form Filing, and the Tax Position for Foreign Landlords

Foreign nationals owning rental property in Japan are subject to Japanese income tax on rental income derived from Japanese sources, regardless of residency status. Non-residents are taxed at a flat 20.42% withholding rate on gross rental income unless a tax treaty between Japan and their home country provides a reduced rate or exemption. Residents file annual returns and are taxed on net income at progressive rates.

For foreign investors filing as residents, the 青色申告 (ao-iro shinkoku, blue-form tax filing) system provides a meaningful deduction. Under the FY2026 reform, the top-tier 青色申告特別控除 (blue-form special deduction) rises from ¥650,000 to ¥750,000, conditional on e-Tax filing and maintaining 優良な電子帳簿 (qualified electronic bookkeeping with a full audit trail). This change takes effect from the 2027 tax year filing. Paper filers drop to a ¥100,000 deduction regardless of bookkeeping quality, and the ¥100,000 simplified deduction is eliminated entirely for landlords whose prior-year gross revenue exceeded ¥10 million.

The 事業用資産買換え特例 (jigyou-you shisan kaikan tokurei, business asset rollover provision) allows 80% capital-gains deferral on the swap of business real estate, including rental property held for ten or more years, extended to 31 March 2029. For foreign investors planning an eventual exit or portfolio restructure, this provision is worth modeling before structuring the initial acquisition.

Koukyuu is a private buyer’s advisory for distinguished Tokyo residences in Nishi-Azabu (西麻布), Roppongi Hills (六本木ヒルズ), and Chiyoda-ku (千代田区), focused exclusively on transactions of ¥300 million and above, with a licensed 宅建士 personally handling every stage of the engagement from first consultation to signing. Book a private consultation) to begin a confidential conversation about your acquisition brief.