Japan's FY2026 tax reform outline revises inheritance tax valuation rules for rental real estate purchased or newly built within 5 years before an inheritance or gift. Currently, such property is generally valued using road-price and fixed-asset tax assessments; under the revision, it will in principle be valued at 80% of the original purchase price at acquisition. The change is expected to apply to property acquired through inheritance or gift from January 1, 2027.
Background to the Reform
Rental real estate (apartment buildings, etc.) is frequently valued for inheritance tax purposes well below its actual market price under road-price and fixed-asset methods. This gap has long been exploited as a tax reduction strategy — purchasing real estate shortly before an inheritance to compress the taxable estate value. This reform aims to curb such aggressive tax planning.
Details of the Reform
| Item | Current | After Revision (Planned) |
|---|---|---|
| Property covered | All rental real estate | Rental property acquired within 5 years before inheritance/gift |
| Valuation method | Based on road price / fixed-asset tax assessment | In principle, 80% of the acquisition purchase price |
| Effective date | — | Property acquired through inheritance/gift from January 1, 2027 |
- Japan's FY2026 tax reform revises valuation of rental property acquired within 5 years before inheritance
- Valuation shifts from road-price-based assessment to 80% of the purchase price, in principle
- Effective for property acquired through inheritance or gift from January 1, 2027
- A transitional measure is expected to exempt rental buildings newly built on land held for 5+ years before the revision's effective notice date, if built before that date
Transitional Measures
A transitional measure is expected to exclude from this revision any rental building constructed, before the revision's effective notice date, on land the owner had already held for 5 years or more before that date. The specific calculation method and scope will be finalized in forthcoming legislation and administrative notices, so continued monitoring is advisable.
Implications for Estate Planning
Purchasing rental real estate has long been a standard inheritance tax reduction technique by compressing the estate's assessed value. This reform will substantially limit the tax-saving effect of buying property shortly (within 5 years) before an inheritance. Property held longer is expected to continue benefiting from the traditional valuation method, so anyone considering real estate purchases for estate planning should factor in acquisition timing and the revised rules.
Summary
- Japan's FY2026 tax reform revises the valuation of rental property acquired within 5 years before an inheritance
- Valuation shifts from road-price-based assessment to 80% of the purchase price, in principle
- Effective for inheritances and gifts of property acquired from January 1, 2027
- Transitional measures apply to existing buildings on long-held land
- The tax-saving effect of real estate purchases for inheritance planning may be significantly limited, requiring a review of existing plans
If you have questions about using real estate in estate planning or preparing a will, contact Sakura Central Legal Office (MOJ-certified application agent). Initial consultations are free.
⚖️ Expert Commentary from a Licensed Gyoseishoshi
📋 Practical Background
This reform is part of a broader tightening of rules aimed at strategies exploiting the gap between market value and assessed inheritance tax value. The common practice of elderly asset holders purchasing rental property shortly before their passing will see its effectiveness substantially reduced, pushing families toward earlier, more deliberate estate planning.
⚠️ Common Misconceptions
Because the calculation method and transitional details will only be finalized in forthcoming legislation and administrative notices, decisions about real estate purchases should not rest solely on currently available information. Coordination with a tax accountant and continued monitoring of official updates is essential.
✅ Actions to Take Now
Those considering real estate purchases for inheritance tax planning should consult a tax accountant and review their plans in light of the valuation change taking effect January 1, 2027. For will drafting and broader inheritance procedures, take advantage of a free consultation with Sakura Central Legal Office.