Business Office Taxation in Japan
JAPAN TAX BULLETINThis article introduces the Business Office Tax, which needs to be considered when entities conduct business in offices or workplaces within cities with a population of 300,000 or more.
2025/11/176 min read

As part of the 2025 tax reform, revisions have been introduced to reduce the tax burden amid rising wages and to aid flexible employment arrangements. The reform includes an increase in the basic exemption and the minimum amount of the employment income deduction, as well as the introduction of a new special exemption for specific dependents. [1]
Regarding income tax, the fixed amount of the basic exemption leads to an increased real tax burden when inflation rises. As Japan experienced a prolonged period of deflation, this problem did not become apparent. However, with prices now on an upward trend, the maximum amount of the basic exemption has been raised.
Furthermore, considering the need to alleviate the tax burden on low-income earners and the fact that wage increases have not kept pace with inflation, a special provision for the basic deduction has been introduced. This aims to reduce the tax burden not only for low-income individuals but also for middle-income earners.
| Total amount of income (JPY) | Basic Deduction (JPY) |
|---|---|
|
1.32M or less |
950,000 |
|
More than 1.32M to 3.36M or less |
850,000 |
|
More than 3.36M to 4.89M or less |
680,000 |
|
More than 4.89M to 6.55M or less |
630,000 |
|
More than 6.55M to 23.5M or less |
580,000 |
|
More than 23.5M to 24M or less |
480,000 |
|
More than 24M to 24.5M or less |
320,000 |
|
More than 24.5M to 25M or less |
160,000 |
|
More than 25M |
0 |
The amount of employment income is calculated by deducting the employment income deduction shown in the table below from the total amount of salary, bonuses, and other employment-related payments.
The employment income deduction is calculated based on a percentage of salary income, so the deduction amount generally increases as wages rise along with inflation. However, for taxpayers whose income falls under the minimum guaranteed amount, the deduction does not increase even if their income rises. To address both the impact of inflation and issues related to employment adjustment, the minimum guaranteed amount will be increased by JPY100,000, from JPY550,000 to JPY650,000.
| Earnings from employment, etc. [A] (JPY) |
Employment Income Deduction (JPY) |
|---|---|
|
1.9M or less |
650,000 |
|
More than 1.9M to 3.6M or less |
[A] x 30% + 80,000 |
|
More than 3.6M to 6.6M or less |
[A] x 20% + 440,000 |
|
More than 6.6M to 8.5M or less |
[A] x 10% + 1,100,000 |
|
More than 8.5M |
1,950,000 |
Note that for individuals whose total employment income, etc. does not exceed JPY6,600,000, the amount of employment income, etc. should be determined by applying the total salary amount to the table provided in Appended Table 5 of the Income Tax Act, rather than by using the table above.
In the current severe labor shortage, it has been pointed out that the tax system is one of the factors restricting flexibility for employers and employees, particularly for university students working part-time.
Therefore, a new special exemption for specific dependents has been introduced. Under this system, parents can claim an income deduction equivalent to the amount of exemption for special dependents qualified for exemption (JPY630,000) for university-aged children between 19 and 22 years old whose total income is up to JPY850,000 (equivalent to approximately JPY1,500,000 in salary income).
Furthermore, even if the total income of these university-aged children exceeds JPY850,000, the exemption available to parents, etc. will gradually decrease on a sliding scale.
| Total amount of income (JPY) | Special Exemption (JPY) |
|---|---|
|
More than 580K to 850K or less |
630,000 |
|
More than 850K to 900K or less |
610,000 |
|
More than 900K to 950K or less |
510,000 |
|
More than 950K to 1M or less |
410,000 |
|
More than 1M to 1.05M or less |
310,000 |
|
More than 1.05M to 1.1M or less |
210,000 |
|
More than 1.1M to 1.15M |
110,000 |
|
More than 1.15M to 1.2M |
60,000 |
|
More than 1.2M to 1.23M |
30,000 |
|
More than 1.23M |
0 |
[1] Kazutaka Shimatani et al. Reiwa 7-nen ban Kaiseizeihonosubete (2025) at 77.
[2] Id. at 78-79.
[3] Id. at 84.
[4] Id. at 85.
This article introduces the Business Office Tax, which needs to be considered when entities conduct business in offices or workplaces within cities with a population of 300,000 or more.
Starting in 2027, a revised minimum tax regime will apply to certain high-income individuals in Japan. While JPY165 million is used as a calculation threshold, additional tax is only triggered where the minimum tax exceeds the regular income tax liability. The reform is intended to ensure a minimum level of taxation, particularly where a significant portion of income is derived from investment or equity-based sources.
In recent years, international tax authorities have intensified scrutiny of cross-border structures involving low-substance entities, commonly referred to as “paper companies.” Japan is no exception and such structures continue to be examined under existing anti-avoidance frameworks, including the “Controlled Foreign Company (CFC) regime and treaty-based anti-abuse rules.
Starting in 2027, a revised minimum tax regime will apply to certain high-income individuals in Japan. While JPY165 million is used as a calculation threshold, additional tax is only triggered where the minimum tax exceeds the regular income tax liability. The reform is intended to ensure a minimum level of taxation, particularly where a significant portion of income is derived from investment or equity-based sources.
If you are planning on doing business in Japan, knowledge of the investment environment and information on legal, accounting, taxation and human resource frameworks are essential to keeping you on the right track. This guide has been prepared for the assistance of those interested in doing business in Japan. It does not cover the subject exhaustively but is intended to answer some of the important, broad questions that may arise. When specific problems occur in practice, it will often be necessary to refer to the laws and regulations of Japan and to obtain appropriate accounting and legal advice. This guide contains only brief notes and includes legislation in force as of November 27, 2024.
With the COVID-19 travel restrictions lifted, business travel has increased significantly. Some companies assume their employees are tax-exempt if their home country has an income tax treaty with the host country and the employee spends not more than 183 days in aggregate there.How to count the days can easily create confusion. This edition of the tax bulletin explains how to count 183 days and pitfalls you need to be aware of when counting travel days to Japan.
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