"Shisanzei Navi" Releases Fixed Asset Tax Overpayment Check Tool for Tokyo's 23 Wards ── AI Determines Validity of District-Specific Assessment Values Based on Address and Area Input

Mycat Inc. (Headquarters: Meguro-ku, Tokyo) is pleased to release an analysis report on fixed asset tax in Tokyo's 23 wards through its fixed asset tax check service "Shisanzei Navi" (https://shisanzei.xyz).

Analysis Overview

Tokyo's 23 wards constitute the area with the highest land prices in Japan, leading to a tendency for higher fixed asset tax burdens. This analysis compared the fixed asset tax burden levels for residential land in each ward, using public data and AI.

Differences in Burden Amount by Ward

An analysis based on public data from the Tokyo Metropolitan Government Bureau of Taxation and land price publication data from the Ministry of Land, Infrastructure, Transport and Tourism confirmed significant differences in fixed asset tax burden levels among the 23 wards.

When comparing based on the officially published land prices for residential areas, the following trends are observed:

• Minato Ward, Chiyoda Ward, Chuo Ward: Many commercial areas, high residential land prices. Fixed asset tax burden is among the highest in the 23 wards.
• Setagaya Ward, Meguro Ward, Shibuya Ward: High demand for residential land, with a continuing trend of rising land prices.
• Adachi Ward, Katsushika Ward, Edogawa Ward: Relatively lower land prices, tending to result in a lower fixed asset tax burden.

Special Measures for Residential Land

Fixed asset tax includes special measures for residential land, where the taxable basis for portions 200 square meters or less (small-scale residential land) is reduced to one-sixth (Local Tax Act Article 349-3-2). Checking whether this special measure is correctly applied is also an important point when confirming the burden amount.

Impact of Reassessment

Fixed asset tax reassessments are conducted every three years, with the most recent reassessment year being FY2024. In areas where land prices are rising, fixed asset tax may increase due to reassessment. Conversely, there are also mechanisms, such as burden adjustment measures, to curb sharp increases.

Utilizing "Shisanzei Navi"

With "Shisanzei Navi," by inputting the property's location, area, and usage, AI can easily check the validity of the fixed asset tax assessment value. It also supports property data for Tokyo's 23 wards.

* This service does not constitute tax consultation under the Certified Public Tax Accountant Act. For accurate confirmation of fixed asset tax amounts, please consult the Tokyo Metropolitan Government Tax Office in each ward or a certified public tax accountant.

▼ Details of this matter

https://shisanzei.xyz/news/tokyo-23-ranking

■ Company Overview

Company Name: Mycat Inc.

Established: February 5, 2025

Location: 2-7-22 Mita, Meguro-ku, Tokyo

Business Activities: Planning, development, and operation of AI-powered services for SMEs and individuals

Latest News: https://shisanzei.xyz/news

Corporate Site: https://mycat.business

Contact: info@mycat.business

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Compliance Check

• [x] Novelty: First release of Tokyo 23 Wards analysis → OK
• [x] Superlative expressions: None → OK
• [x] Legal compliance: Disclaimer included → OK
• [x] Data sources: Tokyo Metropolitan Government Bureau of Taxation, Ministry of Land, Infrastructure, Transport and Tourism → OK
• [x] Representative name: Not disclosed → OK
• [x] Body character count: Approx. 950 characters → OK
• [x] URL placement: Service URL + Company overview URL → OK