Japan–Western Cultural Differences Ver13. “Western Bonus vs Japanese Bonus - part2”
- shigenoritanaka3
- 5月11日
- 読了時間: 3分
May 11, 2026
Thank you for reading.
In the previous article (Japan–Western Cultural Differences Ver12. “Western Bonus vs Japanese Bonus―These Are Completely Different Concepts”),
I explained the structural differences between Western-style bonuses and Japanese bonuses. In this Blog, I would like to clarify several additional points in a simple Q&A format.
■ Figure: Western vs Japanese Bonus – Structural Comparison
(Illustrative example — bonus months shown are sample values for explanation only.)
■ Q&A
Q. Can Japanese companies adopt the same bonus scheme as Western companies?
A. Technically yes. However, if they shift the “bonus portion” into base salary, several cost items will automatically increase:
Social insurance premium
Retirement allowance
Overtime hourly rate
Purchase amount of unused paid holidays
As a result, the company’s fixed cost becomes higher, and it becomes difficult to reduce personnel cost unless they lay off employees. That said, a higher base salary can be attractive for recruitment.
Q. Why do Japanese companies continue to use the current bonus system?
A. Japan has traditionally valued long-term employment. During unexpected downturns—such as COVID-19—Western companies reduce headcount, while Japanese companies reduce bonuses instead.
This is because reducing monthly base salary is basically prohibited under Japanese labor law without employee consent, and layoffs are also strictly restricted in practice due to the “four requirements for dismissal.”
As a result, adjusting bonuses becomes the only practical way to control personnel costs, allowing companies to maintain employment even in difficult years.
Q. What are the pros and cons for Japanese employees?
Pros:
Residential tax is not withheld from bonus, while it is withheld from monthly salary.
Cons:
The number of “bonus months” per year is not guaranteed in the employment contract. However, under Japanese employment practice, companies are required to state the previous year’s actual bonus months in the employment contract (e.g., “last year’s performance was 5.0 months per year”).
Based on this figure, the company must describe the theoretical annual income including bonuses, and recruitment agencies calculate their success fees using this theoretical annual income, even though the bonus months themselves are not contractually guaranteed.
Base salary is intentionally set lower. For example, if annual bonus is 5 months, base salary becomes: Annual compensation ÷ (12 + 5)
→ This lowers retirement allowance, overtime rate, and the purchase amount of unused paid holidays.
Q. What happens if the company makes an EBITA loss?
A. Japanese companies try to pay a minimum portion as a commitment. However, if performance is extremely poor, even the minimum may not be paid. In such cases, employees may leave due to dissatisfaction.
Q. How should the minimum portion (company commitment) be set?
Several approaches exist:
Q. What about labor unions?
A. In labor–management negotiations, the key metric is “how many months of base salary” will be paid. However, Japanese media do not report the number of months. Instead, newspapers and TV report the average bonus amount in JPY, such as:
“The average summer bonus was XXX,XXX JPY.”
“Manufacturing sector average was XXX,XXX JPY.”
Employees then compare their company with the national or industry average based on these JPY figures. If their company’s bonus is significantly lower, they may leave. Past bonus records also matter for mid-career hiring. Executives are an exception, as their compensation is closer to Western style.
Q. How is the variable portion appraised?
A. It depends on the bonus appraisal system. A practical and effective method is to set individual KPIs for each employee and evaluate them on a 1–5 scale. The individual score is then multiplied by a coefficient based on the company’s actual EBITA per head.
This structure allows the company to:
Adjust the total bonus amount automatically according to actual EBITA performance
Distribute the allocated bonus pool among employees based on their relative KPI scores
As a result, the company can maintain financial discipline while ensuring fairness in individual performance evaluation.
■ Conclusion
The Japanese bonus system is often misunderstood as “incentive pay,” but structurally it is closer to a risk-sharing mechanism between company and employees. Understanding these differences helps avoid miscommunication between Japanese and Western organizations.
■ Contact
For inquiries regarding compensation structure, bonus design, title alignment between HQ and the Japan subsidiary, or organizational practices in Japan, please contact us at info@metricjapan.com
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