The National Tax Agency published the 2026 values on July 1
Japan's National Tax Agency released the 2026 roadside land values and valuation multipliers on July 1. These values are established nationwide to provide a standardized basis for valuing land when inheritance tax or gift tax must be calculated. The valuation date is January 1, 2026, and the agency states that values are generally set at around 80% of official land-price benchmarks while taking annual land-price movements into account. The system covers privately owned land including residential sites, farmland and forest land. It should not be confused with the current market price at which a property could actually be sold.
Roadside-value and multiplier areas use different valuation methods
Where a roadside value has been assigned, land is generally valued by multiplying the value per square meter of the relevant road by the site's area and then applying adjustments reflecting factors such as depth, irregular shape and corner positioning. Areas without roadside values use the multiplier method, in which the fixed-asset tax valuation is multiplied by a regional factor. Even in urban neighborhoods, inheritance-tax land valuation is therefore not always a simple multiplication of area and a headline road value. Condominium ownership also includes a land interest, meaning a tax valuation cannot be understood by looking only at the physical building.
The figures also matter for internationally owned Japanese property
For a foreign or non-resident owner, Japanese property can raise tax questions not only at acquisition and sale but also when wealth is transferred by inheritance or gift. The scope of tax liability can depend on the residence status, nationality and circumstances of the owner, heir or recipient, so the roadside value alone does not determine the final tax amount. It is a core valuation reference rather than an individualized tax conclusion. Investors who intend to hold Japanese property for a long period should recognize that succession planning may involve land valuation, building valuation, legal rights and other adjustments in addition to the property's current market price.