About FairPay

Mission

Every worker in Japan deserves to know whether they are being paid fairly — regardless of language or legal expertise.

Data source

Market comparison data comes from Japan's MHLW Basic Survey on Wage Structure via the e-Stat API. Overtime calculations use the official multipliers from the Labor Standards Act.

Every number and recommended service is catalogued in our SOURCES.md — a full disclosure of every data source, recommendation, and confidence level.

Privacy

Your inputs are stored only in your browser (sessionStorage).
Nothing is sent to a server.
No account is required.

Disclaimer

This is an informational tool, not legal advice. For specific cases, consult your local Labor Standards Office (労働基準監督署) or a qualified professional.

Other tools

Harassment self-check (free 8-question quiz)

Help lines

Working Conditions Hotline: 0120-811-610 (free, 14 languages, evenings/weekends)
Check Your Working Conditions (MHLW)

This service uses the API of the Statistics Bureau (e-Stat). Its contents are not endorsed by the Japanese government.