Japan retirement income: a worked example

Invented figures, not official pension rates. Ages are scenario inputs, not eligibility ages. Do not add an employees' pension component again if your entered public-pension total already includes it.

What does this example show?

With spending of JP¥260,000 a month, an entered pension of JP¥180,000 from age 65, and no investment growth or inflation, the plan needs JP¥39,600,000 at age 60 to last until age 90. Of that, JP¥15,600,000 covers the period before the pension starts.

Load this example

Prepare the Japan inputs

Use your Nenkin Net estimate to plan a retirement budget in yen. Keep a total public-pension forecast separate from company pensions and money you can actually withdraw. Japan Pension Service's Nenkin Net lets users estimate benefits under different future coverage and claiming assumptions. Obtain the estimate for the scenario you want to examine. Confirm whether the displayed total already includes both the basic pension and employees' pension before entering it.

Read the country guide and input checklist

Every assumption in the baseline

Current age / stop working: 60 / 60
Plan until age: 90 (exclusive)
Accessible savings at retirement: JP¥39,600,000
Further saving: JP¥0 per month
Spending after tax: JP¥260,000 per month
Entered pension after tax: JP¥180,000 per month, age 65 onward
Other income streams: JP¥0
Net nominal return / inflation: 0% / 0% per year

All figures use today's purchasing power. The pension is an illustrative recurring payment. The model does not assess eligibility, taxes, access restrictions or a benefit increase for claiming later. The example uses zero return to make the arithmetic easy to reproduce; zero is not a return forecast.

Follow the two periods

Age 60 to 65: savings cover all spending.
5 years × 12 months × JP¥260,000 = JP¥15,600,000.
Age 65 to 90: the pension covers part of spending.
Monthly gap = JP¥260,000 − JP¥180,000 = JP¥80,000. Over 25 years, savings supply JP¥24,000,000.

Total capital needed: JP¥15,600,000 + JP¥24,000,000 = JP¥39,600,000. At a nonzero return, the calculator discounts each monthly gap. It never borrows against future pension income.

Change one assumption

Same starting savings and spending, different timing · JPY
Scenario	Capital needed	Additional capital needed	Try it
Baseline bridge	JP¥39,600,000	JP¥0	Load scenario
Pension starts one year later	JP¥41,760,000	JP¥2,160,000	Load scenario
Plan for five more years	JP¥44,400,000	JP¥4,800,000	Load scenario

Delaying the same pension by one year increases the required savings by JP¥2,160,000. Planning five years longer adds JP¥4,800,000. Actual later-claiming benefits may differ: get a new official estimate before using a real alternative date.

What this leaves out

Use an annual net estimate divided by twelve for this monthly planning model. Actual deposits and deductions may follow a different schedule. A monthly average helps compare income and expenses but does not replace a bank-account cash-flow calendar.

The result is a deterministic illustration with no market volatility, changing taxes, care-cost shock or inheritance target. Payments remain constant in real terms, which may overstate a pension that does not keep pace with prices. Three income streams are available; combine payments only when their dates and money basis match.

The first twelve-month budget in the calculator solves for a fundable spending level. It is a separate result from your entered target. In a stressed scenario it can be lower than the target; the capital-gap table above keeps the original spending target unchanged.

Official sources and review scope

Source descriptions checked 4 October 2026. This is an illustrative calculation, not a government benefit forecast. Read our editorial policy and review status.

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