The Reality Behind the '20 Million Yen Retirement Gap'

The so-called '20 million yen retirement problem,' highlighted in a 2019 report by Japan's Financial Services Agency, was derived from average household budget data for elderly couples. According to the Ministry of Internal Affairs' Household Survey, retired couples aged 65 and over face a monthly shortfall of roughly 4 man-yen, requiring drawdowns of approximately 1,440-2,000 man-yen over a 30-year retirement.

For further reading, books on retirement funding can help you calculate your personal target and map out a preparation strategy.

However, this figure is merely an average. The actual amount you need depends heavily on your lifestyle, housing costs, medical expenses, and spending on hobbies and travel. A personalized simulation is essential.

Public Pension Benefits and Living Cost Benchmarks

For a salaried couple enrolled in the Employees' Pension (Kosei Nenkin), the combined monthly benefit is roughly 22 man-yen - about 15 man-yen from the husband's Employees' Pension and 6.5 man-yen from the wife's National Pension (basic pension). Self-employed couples receiving only the National Pension can expect roughly 13 man-yen combined.

Meanwhile, the Household Survey puts average monthly living expenses for retired elderly couples at about 26 man-yen. A comfortable retirement is estimated to require around 36 man-yen per month. The gap between pension income and expenses is the monthly shortfall that must be covered by savings and investments.

Calculating the Shortfall and Required Savings

For a salaried couple with 22 man-yen in monthly pension income and 26 man-yen in expenses, the monthly shortfall is 4 man-yen. Over 30 years from age 65 to 95, that totals 4 man-yen x 12 months x 30 years = 1,440 man-yen. For a comfortable lifestyle at 36 man-yen per month, the shortfall becomes 14 man-yen x 12 x 30 = 5,040 man-yen.

  • Minimum lifestyle: shortfall of 4 man-yen/month x 30 years = approx. 1,440 man-yen
  • Average lifestyle: shortfall of 8 man-yen/month x 30 years = approx. 2,880 man-yen
  • Comfortable lifestyle: shortfall of 14 man-yen/month x 30 years = approx. 5,040 man-yen

Accumulation Simulation Through Age 65

Let's simulate building retirement savings through regular contributions. Investing 3 man-yen per month at 5% annual return from age 35 to 65 (30 years) yields approximately 2,497 man-yen. The total principal is 3 man-yen x 12 months x 30 years = 1,080 man-yen, meaning compound growth adds roughly 1,417 man-yen.

Average severance pay is about 2,000 man-yen at large companies and about 1,000 man-yen at small and mid-sized firms. Combined with accumulated savings, even a 3 man-yen monthly contribution can secure 3,500-4,500 man-yen in retirement funds. Try our simulator to enter your own contribution amount, return rate, and time horizon to see your projected future assets.

Books on managing severance pay can help you organize your thinking on how to safely invest a lump sum.