How Japan's 'Income Walls' Have Changed
"Take-home pay falls once income passes a certain level" — the so-called "income wall". How has this wall changed with higher basic and other deductions? We separate the tax wall from the social-insurance wall and look at it from both the worker's and the employer's side.
- The "income wall" has both a tax wall and a social-insurance wall
- How the higher basic deduction moves the tax wall
- The impact on part-time and casual workers
- What employers should prepare for
01There is more than one "income wall"
Although we speak of "the income wall" as one thing, there are actually several walls of different natures. Understanding them separately is the starting point.
| Wall | What it is | Type |
|---|---|---|
| ¥1.03 million | The rough line where income tax starts (traditionally) | Tax |
| ¥1.06 million | Social-insurance enrollment becomes required under set conditions | Social insurance |
| ¥1.3 million | You leave a dependent status and must enroll in social insurance | Social insurance |
| ¥1.5 million | The spousal special deduction starts shrinking from its full amount | Tax |
02How does the higher basic deduction move the tax wall?
The basic deduction and the employment-income deduction both determine the "portion that is not taxed". When they are raised, the income line at which income tax begins rises. In other words, for those who used to watch the ¥1.03 million mark, the level at which tax starts eases.
As a result, part-time and casual workers gain a wider range in which "working more hours does not immediately raise the tax burden". It is a change that makes it easier to increase the household's total take-home pay.
03What employers should prepare for
When employees' working patterns change, payroll and social-insurance procedures are affected too. Employers should check the following.
- That the dependent-deduction declaration form matches the actual situation
- Handling the new deduction amounts in the year-end adjustment
- Identifying employees newly subject to social-insurance enrollment
- Being ready for consultations about revising shifts and contracted hours
This needs to be considered together with the expansion of social-insurance coverage. See also the related article "Expanded Social Insurance Coverage: What Companies Should Prepare Now".
Summary
The "income wall" divides into a tax wall and a social-insurance wall, each moving under a different system.
With higher basic and other deductions, the income line at which tax begins has eased.
Workers should look at total take-home pay; employers should check both payroll and social-insurance procedures early.
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Sources & References
This article is based on information available at the time of publication. Rules and systems may change. Please consult a professional before making any individual decisions.
