asiaref › Countries › Japan

Japan government reference data

7 series, each cited to the official source it was verified against. Currency JPY.

SeriesCurrentIn force fromOfficial sourceLast verified
Bank of Japan policy rate (uncollateralized overnight call rate target) 1 percent 2026-06-17 Bank of Japan, 'Change in the Guideline for Money Market Operations', 2026-07-20
Consumption tax (standard rate) 10 percent 2019-10-01 National Tax Agency, Tax Answer No. 6303 'Shohizeiritsu-to' (consumpti 2026-07-20
Minimum wage (lowest prefectural regional minimum wage) 1023 JPY/hour 2026-03-31 Ministry of Health, Labour and Welfare, 'Reiwa 7-nendo chiikibetsu sai 2026-07-20
Public holidays (free) 35 days held 2026-01-01 Cabinet Office, 'Kokumin no shukujitsu ni tsuite' (national holidays o 2026-07-30
Consumer price inflation (CPI, all items, year-on-year) 1.5 percent, year-on-year, all items (2020=100) 2026-05-01 Statistics Bureau of Japan (MIC), 2020-base Consumer Price Index, Japa 2026-07-20
Corporate income tax (national corporation tax, standard rate) 23.2 percent 2018-04-01 National Tax Agency, Tax Answer No. 5759 'Hojinzei no zeiritsu' (corpo 2026-07-20
Personal income tax (national, progressive bands) 7 entries — see the API for the full schedule 2015-01-01 National Tax Agency, Tax Answer No. 2260 'Shotokuzei no zeiritsu' (inc 2026-07-20

Use it from code

# Free — the full catalogue of what we hold
curl https://asiaref.dev/catalog

# Any series ($0.001 per call, x402 on Base — no key, no signup)
curl https://asiaref.dev/v1/jp/policy-rate

# Provenance: the fingerprint of every source cited above
curl https://asiaref.dev/provenance/jp/policy-rate

What makes this different

Every value above names the official instrument it came from and the date it takes effect, and we record when we last checked it. Where a value could not be verified against its own statute we do not publish an estimate — the series is simply absent. Where a question falls outside what we hold, the API refuses and explains, free of charge, rather than returning a number that looks right.