"Asset Tax Navi" Releases Osaka City Property Tax Overpayment Check Tool; AI Compares and Judges Evaluation Value Trends by Ward
Mycat Inc. has launched "Shisanzei Navi," a property tax overpayment check service with an Osaka City-specific analysis. The tool uses AI to compare property tax assessed values with actual market prices, identifying potential discrepancies and ward-specific trends in Osaka. The report highlights that tax assessment errors are common nationwide and provides methods for individuals to check their own property tax assessments.
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- 📰 Published: March 30, 2026 at 10:34
Mycat Inc. (Headquarters: Meguro-ku, Tokyo) will release an analysis report regarding property taxes in Osaka City on its property tax check service "Shisanzei Navi" (https://shisanzei.xyz).
**Analysis Overview**
Osaka City has a high population density among Japan's designated cities and is characterized by a mix of commercial and residential areas. This analysis used AI to examine the relationship between property tax assessed values and actual market prices for residential land within Osaka City.
**Relationship between Assessed Value and Market Price**
Property tax assessed values are generally set at approximately 70% of the official land price. However, there are cases where the actual assessed value exceeds this level or deviates from the local market price. According to a survey by the Ministry of Internal Affairs and Communications (MIC), tax assessment errors for property tax have been confirmed in 97% of municipalities nationwide (Source: MIC), and Osaka City is no exception.
**Area-Specific Trends in Osaka City**
The analysis revealed the following trends within Osaka City, varying by area:
* **Kita Ward / Chuo Ward (Central Business Districts):** These areas, a mix of commercial and residential land, sometimes show cases where changes in land use zoning or revisions to floor area ratios are not reflected in the assessed values. In redevelopment areas, assessed values are trending upwards in line with rising land prices.
* **Abeno Ward / Tennoji Ward:** Demand for residential land is high, and assessed values are at a corresponding level. However, for older condominiums, the depreciation of the building component may not be fully reflected.
* **Suminoe Ward / Konohana Ward (Bay Area):** These areas are prone to land price fluctuations due to coastal development. In areas where Expo-related developments are progressing, assessed values may change in future revaluations.
* **Higashiyodogawa Ward / Hirano Ward (Residential Areas):** These areas generally have stable land prices, but it is worth checking if corrections for road access and land shape have been appropriately applied.
**How to Check for Potential Overpayment**
To prevent property tax overpayment, the following checks are effective:
1. Check the assessed value on the annual tax statement.
2. Compare with nearby official land prices and road prices (rosenka).
3. View the public inspection ledger during the inspection period in April.
4. If you have doubts, file an application for review with the Fixed Asset Valuation Examination Committee.
**Utilizing "Shisanzei Navi"**
Simply by entering the property's location and area, "Shisanzei Navi" allows AI to perform a simple check of the assessed value's appropriateness.
*This service is not tax advice under the Certified Public Tax Accountant Act. For confirmation of accurate assessed values, please consult a tax professional such as a certified public tax accountant.*
**Details of this matter:** https://shisanzei.xyz/news/osaka-analysis
**Company Overview:**
* Company Name: Mycat Inc.
* Established: February 5, 2025
* Location: 2-7-22 Mita, Meguro-ku, Tokyo
* Business Description: Planning, development, and operation of AI-powered services for small and medium-sized enterprises 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 Osaka City version analysis → OK
[x] Superlative Expression: None → OK
[x] Legal Violation: Disclaimer present → OK
[x] Data Source: Ministry of Internal Affairs and Communications → OK
[x] Representative Name: Not disclosed → OK
[x] Body Text Length: Approx. 1,050 characters → OK
[x] URL Placement: Service URL + Company Overview URL → OK
**Analysis Overview**
Osaka City has a high population density among Japan's designated cities and is characterized by a mix of commercial and residential areas. This analysis used AI to examine the relationship between property tax assessed values and actual market prices for residential land within Osaka City.
**Relationship between Assessed Value and Market Price**
Property tax assessed values are generally set at approximately 70% of the official land price. However, there are cases where the actual assessed value exceeds this level or deviates from the local market price. According to a survey by the Ministry of Internal Affairs and Communications (MIC), tax assessment errors for property tax have been confirmed in 97% of municipalities nationwide (Source: MIC), and Osaka City is no exception.
**Area-Specific Trends in Osaka City**
The analysis revealed the following trends within Osaka City, varying by area:
* **Kita Ward / Chuo Ward (Central Business Districts):** These areas, a mix of commercial and residential land, sometimes show cases where changes in land use zoning or revisions to floor area ratios are not reflected in the assessed values. In redevelopment areas, assessed values are trending upwards in line with rising land prices.
* **Abeno Ward / Tennoji Ward:** Demand for residential land is high, and assessed values are at a corresponding level. However, for older condominiums, the depreciation of the building component may not be fully reflected.
* **Suminoe Ward / Konohana Ward (Bay Area):** These areas are prone to land price fluctuations due to coastal development. In areas where Expo-related developments are progressing, assessed values may change in future revaluations.
* **Higashiyodogawa Ward / Hirano Ward (Residential Areas):** These areas generally have stable land prices, but it is worth checking if corrections for road access and land shape have been appropriately applied.
**How to Check for Potential Overpayment**
To prevent property tax overpayment, the following checks are effective:
1. Check the assessed value on the annual tax statement.
2. Compare with nearby official land prices and road prices (rosenka).
3. View the public inspection ledger during the inspection period in April.
4. If you have doubts, file an application for review with the Fixed Asset Valuation Examination Committee.
**Utilizing "Shisanzei Navi"**
Simply by entering the property's location and area, "Shisanzei Navi" allows AI to perform a simple check of the assessed value's appropriateness.
*This service is not tax advice under the Certified Public Tax Accountant Act. For confirmation of accurate assessed values, please consult a tax professional such as a certified public tax accountant.*
**Details of this matter:** https://shisanzei.xyz/news/osaka-analysis
**Company Overview:**
* Company Name: Mycat Inc.
* Established: February 5, 2025
* Location: 2-7-22 Mita, Meguro-ku, Tokyo
* Business Description: Planning, development, and operation of AI-powered services for small and medium-sized enterprises and individuals.
* Latest News: https://shisanzei.xyz/news
* Corporate Site: https://mycat.business
* Contact: info@mycat.business
---
**Compliance Check:**
[x] Novelty: First release of Osaka City version analysis → OK
[x] Superlative Expression: None → OK
[x] Legal Violation: Disclaimer present → OK
[x] Data Source: Ministry of Internal Affairs and Communications → OK
[x] Representative Name: Not disclosed → OK
[x] Body Text Length: Approx. 1,050 characters → OK
[x] URL Placement: Service URL + Company Overview URL → OK