Tax Planning
Tax Planning for High Earners: Japan’s New Rate Brackets and Extreme High-Income Measures
Recent reforms in Japan tighten tax obligations for the very high-income bracket, introducing steeper rates and lowering exemption thresholds—making proactive planning more crucial than ever.
By NomadicTax Research Team • 5-8 min read • September 6, 2026
## Overview of Japan’s High-Income Tax Reform
In the **令和８年度税制改正の大綱 (Fiscal Year 2026 Tax Reform Overview)** published by Japan’s Ministry of Finance, sweeping changes have been introduced to ensure **fairer tax burden** at very high income levels. Two of the most impactful reforms:#
- **Lowering the taxable income threshold** for additional high-income taxation: the special deduction allowance (特別控除額) for “very high” incomes has been reduced from **¥330 million** to **¥165 million**. ([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_gaiyou.htm?utm_source=openai))
- **Increasing the marginal tax rate**: for incomes above this new threshold, the tax rate is raised from **22.5%** to **30%**. ([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_gaiyou.htm?utm_source=openai))
## Implications for High Earners and Expatriates
For any individual—including foreigners who are **residents for tax purposes**—earning above ¥165 million in a given tax year, these changes mean higher marginal tax rates applying to portions of their income. It also makes deductions and related tax planning less beneficial.
- **Non-resident income** remains taxed only on Japan-sourced income. However, once you become a resident, **worldwide income** is taxable, and these thresholds and rates apply. (See NTA guidance) ([nta.go.jp](https://www.nta.go.jp/taxes/shiraberu/taxanswer/shotoku/1935.htm?utm_source=openai))
- Expatriates who relocate back to Japan or have assignments exceeding one year could face increased tax burdens upon becoming residents. Planning around ***timing of residency***, income realization, and deferrals becomes critical.
## Practical Tax Planning Strategies
To mitigate the impact of these reforms, here are some concrete steps:
- **Shift income or scale up deductions in the years before crossing the high threshold**: If you expect income to exceed ¥165 million in Year N, consider accelerating deductions or deferring income into Year N−1 if possible.
- **Use tax-advantaged investment vehicles**: The reform also expands non-taxable NISA accounts; using these for eligible investment profits can reduce taxable income. ([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_01.htm?utm_source=openai))
- **Split income sources**: Use family trusts or revenue-sharing structures where appropriate and legally allowed to distribute income among family members in lower rate brackets.
- **Consider international tax treaties**: For expats, double taxation treaties may provide relief or exemptions. Recent Japan treaties (e.g., with the Philippines) now include stronger abuse prevention measures which affect such planning. ([mof.go.jp](https://www.mof.go.jp/tax_policy/summary/international/tax_convention/press_release/20260528phl.html?utm_source=openai))
## Example Case
Sarah, a U.S. citizen, has been living in Tokyo and earns ¥200 million per year. Under the old rules, she could enjoy the special deduction (¥330 million) and taxed at 22.5% above it. Under the new rules:
1. The special deduction cap is **¥165 million**, so only ¥35 million is eligible for the lower rate.
2. The portion of income above ¥165 million (¥35 million in this case) is taxed at **30%**.
3. Using NISA accounts and timing of income can shift some taxable profits outside the high-bracket rates.
## Key Takeaways
- These reforms are **effective for income earned in 令和８年 (FY2026)** onward.
- Individuals near the old upper bracket should review income timing and deductions carefully.
- Expatriates need to be mindful of when they will be categorized as “resident” for Japanese tax purposes.
- Use treaty protections, investment exemptions, and non-resident status wisely with proper advice.
Implementing these strategies can help high earners and expats soften the impact of increased rates and lowered thresholds while staying compliant under Japan’s updated tax system.