What is iDeCo?
iDeCo is Japan's individual defined contribution pension plan. Contributions are fully tax-deductible from income, investment gains grow tax-free, and withdrawals after age 60 receive favorable tax treatment. For a salaried employee in the 20% tax bracket contributing the maximum 23,000 yen monthly, the annual tax savings alone are about 55,200 yen.
Triple Tax Advantage
iDeCo offers three layers of tax benefits: deductible contributions reduce your current income tax and resident tax, investment returns compound without annual taxation, and withdrawals can be received as a lump sum (taxed as retirement income with generous deductions) or as an annuity (taxed as pension income). No other Japanese investment vehicle offers all three benefits.
Key Considerations
The major drawback is that funds are locked until age 60 with very few exceptions. This makes iDeCo unsuitable for emergency savings or medium-term goals. Monthly contribution limits vary by employment status, ranging from 12,000 to 68,000 yen. Choose low-cost index funds within iDeCo to maximize the compounding benefit of tax-free growth.