40-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily
This series is part of the dataset: Japan constant-maturity government-bond yield curve (Ministry of Finance)
Download Full Dataset (.xlsx)Latest updates. In Japan, the 40-year government-bond yield was 3.71 percent on 31 March 2026, versus 3.80 on 30 March.
Sample. There are 4,498 observations in the daily time series displayed in the plot above. The span of time covered by the series stretches from November 2007 to March 2026.
History. Take a look at some statistics computed on the full sample: the yield hit a maximum of 3.90 percent on 20 January 2026; it recorded a bottom of 0.07 on 6 July 2016; it averaged 1.63.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-03-27 | 3.717 |
| 2026-03-30 | 3.802 |
| 2026-03-31 | 3.713 |
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Series Metadata
| Field | Value |
|---|---|
| Description | 40-year yield; Japan government bond yield curve |
| Country | Japan |
| Economic concept | Interest rate |
| Data type | Semiannually compounded interest rate |
| Deflation method | Not applicable |
| Seasonally adjusted | No |
| Rescaling | None |
| Frequency | Daily |
| Unit | Percentage points |
| Source | Japan Ministry of Finance |
| Source type | National source |
| Data licence | Public Data Licence |
| Measure type | Interpolated level (constant maturity; cubic spline) |
Series in the same data set
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