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iDeCo Tax Saving Calculator

See how much income tax + residence tax you save by contributing to iDeCo (Japan's defined contribution pension).

2026 tax-year compliant日本語版を見る (Japanese)

Note: Input field labels are in Japanese (the calculator engine is shared with the Japanese version). Numeric input works the same way; the results are universal numbers in JPY (¥).

iDeCo Tax Saving Calculator

See how much income tax + residence tax you save by contributing to iDeCo (Japan's defined contribution pension).

万円
23000

Key Points

  • Contributions: fully deductible from taxable income
  • Investment gains: tax-free
  • Withdrawal: taxed but with major deductions

FAQ

Eligible for foreigners?

Yes, if enrolled in Japanese pension (国民年金 or 厚生年金). Foreigners with PR or long-term visa can join.

Withdrawal at 60?

Yes — minimum age 60, full deduction after 75 if you delay.

⚠️ Disclaimer

This calculator provides estimates only. For actual tax filing, please consult a licensed 税理士 (zeirishi) or FP (Financial Planner). Results are not a substitute for professional advice.

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