Tax Planning
How Japan’s FY2026 Tax Reform Raises Basic Deductions and Why Expats Should Care
Japan’s latest tax reform boosts key deductions and adjusts the threshold for minimal taxation—changes with major implications for expats and high earners alike.
By NomadicTax Research Team • 5-8 min read • August 24, 2026
## Key Changes in FY2026 Tax Reform
Japan’s **令和８年度税制改正の大綱**, approved in December 2025, introduces several critical changes to individual income taxation, many of which **take effect April 1, 2026**.([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_01.html?utm_source=openai)) Notably:
- **Basic deduction (基礎控除)** is raised for individuals with aggregate income (合計所得金額) up to ¥23,500,000. For example, those below that threshold can now claim **¥620,000** (up ¥40,000).([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_01.html?utm_source=openai))
- **Lowest guarantee for employment income deductions** is likewise adjusted upward, helping reduce taxable income for salaried workers.([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_01.html?utm_source=openai))
- Minimum taxable income, or the threshold under which income isn’t taxed heavily, is **exceptionally raised to ¥1,780,000**, offering more relief for low-to-middle income earners.([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_01.html?utm_source=openai))
## Implications for Expats and High Earners
These reforms significantly affect those filing in Japan:
- If you’re an expat earning ¥20–25 million gross income, the increased deductions may translate to considerable tax savings—especially if you're filing as a **resident taxpayer**.
- For high earners above certain thresholds, the threshold for deductions begins tapering off, meaning that some of the benefit phases out.([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_01.html?utm_source=openai))
## Planning Tips for Expats
- Reevaluate your withholding tax rates and estimated income to avoid surprises at year-end.
- Consider whether increased deductions make it worthwhile to split income (if possible) or adjust compensation structure.
- Document overseas allowances, commuting and meal provisions—they may benefit from increased non-taxable limits.([nta.go.jp](https://www.nta.go.jp/publication/pamph/gensen/aramashi2026/index.htm?utm_source=openai))
## Example Scenario
Let’s say Maria is a foreign national living in Tokyo. She earns **¥24,000,000** annually and previously claimed a basic deduction of **¥580,000**. With the changes:
- Her basic deduction now drops because her income exceeds ¥23,500,000—but those close to the threshold see benefit.
- Her effective taxable income may still rise compared to past years, so keeping careful records of deductible expenses and allowances matters more than ever.
## Actionable Checklist
- Review your income level relative to new thresholds and deductions.
- Monitor payslips to ensure correct deduction amounts are applied.
- Consult with a tax advisor to optimize deductions, especially if you have foreign income, investments or complex sources of revenue.
- Stay updated: rulebooks like "源泉徴収のあらまし" explain new non-taxable commuting and meal expense limits.([nta.go.jp](https://www.nta.go.jp/publication/pamph/gensen/aramashi2026/index.htm?utm_source=openai))
**Bottom line**: Japan’s FY2026 reform shifts meaningful weight toward fairness and inflation adjustment. If you’re an expat—or pay taxes in Japan—these changes can help, but only if you plan around them.