The claim
日本は世界一の重税国
Original review summary
The review compares Japan’s tax burden with that of other OECD members using both tax revenue and social security contributions. It reports that Japan ranked 29th of 36 countries for tax burden and 22nd of 36 for total national burden, and concludes that the claim is not supported.[S1]
Additional context
The review says the figures were based mainly on 2021 data and excluded Colombia and Iceland because national-income figures were unavailable. [S1]
Research date:
Sources and attribution
- [S1] 日本ファクトチェックセンター original review
Original review · Retrieved October 16, 2026