As of Aug 31, 2026

Japan Sovereign Bond Yields

JP ·Japanese Government Bonds ·JPY ·Asia-Pacific ·19 maturities

Delayed reference yields for Japanese Government Bonds (2Y, 10Y, 30Y, and more). Latest / live yield requires API access.

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2Y yield
1.74%
10Y yield
2.94%
30Y yield
4.09%

Yields as of Aug 31, 2026 (previous month-end close — not live). Latest / live yield requires API access. · 2Y–10Y spread: 120.0 bps

Japan yield curve

All maturities for JP
1M
3M
6M
9M
1Y
2Y
3Y
4Y
5Y
6Y
7Y
8Y
9Y
10Y
15Y
20Y
25Y
30Y
40Y
Japan sovereign bond yields as of Aug 31, 2026 (delayed)
Maturity Reference (delayed) Latest
1M 1.025%
3M 1.008%
6M 1.180%
9M 1.381%
1Y 1.502%
2Y bench 1.743%
3Y 1.894%
4Y 2.084%
5Y 2.233%
6Y 2.358%
7Y 2.507%
8Y 2.670%
9Y 2.801%
10Y bench 2.943%
15Y 3.501%
20Y 3.815%
25Y 4.102%
30Y bench 4.092%
40Y 4.094%

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Latest / live yield requires API access

This page shows delayed month-end reference data only. Get an API key for current JP JGBs yields, spreads, and history.

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What are Japan sovereign bonds?

JGBs dominate Japan’s fixed-income market. Ultra-long tenors (including 40Y) and Bank of Japan policy make the curve uniquely important in Asia. On Bonds API, ISO code JP identifies Japanese Government Bonds across available maturities.

This public page lists delayed reference yields as of Aug 31, 2026 (previous month-end close or the nearest prior trading day). The JP 10Y reference yield on that date was 2.94%. The 2Y–10Y spread was 120.0 basis points. Latest / live yield requires API access.

Developers use Bonds API to pull Japan yields into risk systems, dashboards, and research workflows via REST JSON endpoints such as /latest, /curve, and /historical — with currency context JPY and policy backdrop from the Bank of Japan. Available tenors on the delayed curve include 1M, 3M, 6M, 9M, 1Y, 2Y, 3Y, 4Y, 5Y, 6Y, 7Y, 8Y, 9Y, 10Y, 15Y, 20Y, 25Y, 30Y, 40Y.

Market
Japanese Government Bonds
Currency
JPY
Central bank
Bank of Japan
Also known as
JGB yields, Japanese government bonds

API examples for JP

Use these endpoints to query Japanese Government Bonds with country=JP.

GET /latest

Docs →

Most recent Japan bond yields.

curl "https://bonds-api.com/api/v1/latest?countries=JP&api_key=YOUR_API_KEY"

GET /curve

Docs →

Full sovereign yield curve for JP.

curl "https://bonds-api.com/api/v1/curve?country=JP&api_key=YOUR_API_KEY"

GET /historical

Docs →

Yield for a specific maturity and date.

curl "https://bonds-api.com/api/v1/historical?country=JP&maturity=10Y&date=2025-06-15&api_key=YOUR_API_KEY"

Frequently asked questions — JP

What is the Japan (JP) sovereign bond yield curve? ▾
It is the set of interest rates on Japanese Government Bonds across maturities. Investors use the curve to price duration risk, compare credit spreads, and infer Bank of Japan policy expectations.
What is the JP 10Y bond yield shown on this page? ▾
The public reference 10Y yield for Japan as of Aug 31, 2026 is 2.943%. This is delayed month-end data. Latest / live yield requires API access via Bonds API.
Are these Japan yields live? ▾
No. Public country pages show delayed reference yields (previous month-end close). Latest / live yield requires API access with an API key.
Which maturities does Bonds API cover for JP? ▾
The delayed JP curve currently lists 19 maturities: 1M, 3M, 6M, 9M, 1Y, 2Y, 3Y, 4Y, 5Y, 6Y, 7Y, 8Y, 9Y, 10Y, 15Y, 20Y, 25Y, 30Y, 40Y. Not every country issues every tenor; API responses only include maturities that exist.
How do I get the latest Japan bond yields via API? ▾
Create an API key, then call GET /api/v1/latest?countries=JP, GET /api/v1/curve?country=JP, or GET /api/v1/historical?country=JP&maturity=10Y&date=YYYY-MM-DD. See Bonds API documentation for parameters and rate limits.
What are the JP 2Y and 30Y reference yields? ▾
As of Aug 31, 2026 (delayed): 2Y 1.74%, 30Y 4.09%. Live values require an API subscription.