TONA Swap Rates Today: Current & Historic JPY Swaps

Current annual TONA swap rates – daily updates on JPY interest rate swaps, with 1 week, 1 month and 1 year history.

Last update: July 29, 2026, 09:00 (London)

TONA swap rates by tenor: latest, one week ago, one month ago and one year ago.
Tenor	Yesterday29 Jul 2026	1 week ago21 Jul 2026	1 month ago26 Jun 2026	1 year ago28 Jul 2025
1 Month	0.98%	0.98%	0.98%	0.48%
3 Month	1.01%	1.00%	0.98%	0.50%
6 Month	1.11%	1.08%	1.04%	0.58%
1 Year	1.26%	1.22%	1.18%	0.68%
2 Year	1.51%	1.45%	1.42%	0.82%
3 Year	1.71%	1.64%	1.60%	0.90%
4 Year	1.87%	1.81%	1.76%	0.97%
5 Year	2.02%	1.97%	1.89%	1.03%
7 Year	2.29%	2.24%	2.13%	1.14%
8 Year	2.41%	2.37%	2.24%	1.20%
10 Year	2.62%	2.60%	2.44%	1.34%
15 Year	3.02%	3.01%	2.84%	1.73%
20 Year	3.28%	3.26%	3.09%	2.05%
30 Year	3.47%	3.46%	3.28%	2.36%

Rates built from interdealer broker and exchange quotes. Read how we build these rates.

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// Excel: live TONAR swap rate in a cell
=BlueGamma.SWAP_RATE("TONAR", start_date, maturity_date, "1Y")

# API: the same rate, one GET away
GET api.bluegamma.io/v1/swap_rate
    ?index=TONAR&start_date=2D&maturity_date=5Y
x-api-key: your_api_key