Entity Setup
Entity Setup in Japan Post-Tax Reform: Choosing Your Corporate Form and Tax Incentives
With Japan’s tax reform ushering in changes for corporations—from depreciation rules to criteria for tax credits—this article helps entities picking their legal form or optimizing existing ones.
By NomadicTax Research Team • 5-8 min read • September 15, 2026
## Key Corporate Changes in the FY2026 Reform
The tax outline introduced several changes affecting how corporations are taxed and how to set up new entities or restructure existing ones. Major items include:
- **Small-asset depreciation**: The threshold for what constitutes a “small depreciable asset” that can be expensed immediately will rise from **¥300,000 to ¥400,000**. ([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_03.htm?utm_source=openai))
- **Research & Development tax credits**: Amendments include adjusting credit rates and limits, especially for overseas research (excluding clinical trials). For instance, 50% of R&D costs conducted abroad will be credit-eligible. ([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_gaiyou.htm?utm_source=openai))
- **Wage increase credits (“賃上げ促進税制”)** are being revised: the tax credit for large corporations will be phased out by March 31, 2026; for smaller firms, criteria for credit eligibility are tightened, and rates adjusted. ([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_03.htm?utm_source=openai))
## Choosing the Right Entity Type
| Entity Type | Key Advantages | Recent Changes Affecting It |
|---|---|---|
| **Kabushiki-Kaisha (K.K.) / Joint Stock Company** | Preferred by foreign investors, clear governance, well understood by partners from abroad. | Implementation of changes in depreciation thresholds and R&D incentives offers more room for cost recovery, but complexity and compliance requirements remain high. |
| **Godō Kaisha (G.K.) or LLC-like entities** | Simpler setup, fewer formalities and lower compliance burden. | May miss out on certain tax credits or incentives due to scale or capital thresholds. |
| **Branch office / Subsidiary** | Branch simplifies legal setup; subsidiary offers limited liability. | Subsidiaries taxed fully; branches may be less favored in incentive eligibility. |
| **Special Purpose Vehicles / R&D entities** | Can focus on qualifying R&D, benefit from export or innovation credits. | Must meet new stricter criteria for credit applicability, especially for overseas work or research. |
## Example Setup
> **TechStart Japan, Inc.**, aiming to build a new lab for both domestic and overseas R&D, is choosing between setting up as a K.K. vs special R&D unit under a larger group. Under the new law:
>
> - Using the **small asset expensing** of ≤ ¥400,000 allows them to write off lab equipment immediately instead of depreciating over years. ([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_03.htm?utm_source=openai))
> - For overseas R&D work, **50% of such expenses** (excluding certain trial types) will be eligible for tax credit. So distributing R&D tasks globally becomes more attractive. ([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_03.htm?utm_source=openai))
> - But to claim wage-increase credits, their growth in salaries must meet higher thresholds. If not, those credits are being phased out or reduced. ([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_03.htm?utm_source=openai))
## Practical Steps for Entity Planning
- **Define timelines**: If planning major investments, purchases, or organizational changes, aim to align costs in fiscal years before stricter rules take effect. Many changes apply for **令和９年分以後 (tax year 2027)**. ([mof.go.jp](https://www.mof.go.jp/tax_policy/tax_reform/outline/fy2026/08taikou_01.htm?utm_source=openai))
- **Maintain detailed accounting**: Especially for overseas R&D or mixed-use assets, documentation and compliance needed to support claims.
- **Consider incentives vs scale**: Some credits or deductions are only open to medium or large corporations, or those with certified investment plans. For smaller entities, cost-benefit analysis is crucial.
- **Seek treaty benefits if foreign ownership involved**: Cross-border payments, foreign contractors, overseas income need careful structure.
## Takeaway
Japan’s 2026 tax reforms adjust thresholds, tighten documentation, and shift incentives—making entity structure more significant than ever. With the right strategy, businesses can leverage new deductions and credits, but must stay compliant and forward-looking to avoid surprises.