Contact FreeTaxJapan
Reach us by email, phone, or fax during JST business hours, or send something physical to our Tokyo office if you still trust paper.
Best for filing questions, support invoices, and calmly worded explanations of what went wrong.
Phone
+81 3 6455 9270For issues that are easier to solve in one conversation than in twelve perfectly polite emails.
Fax
+81 3 6455 9271
Yes, this is Japan, we still use fax.
Office Hours
If you contact us from another time zone, please interpret any delay as geographic reality rather than emotional distance.
JST support window
Monday-Friday, 9:00-18:00 JST
Tokyo Office
Mail is accepted, logged, and treated with respect. We would still recommend email first.
FreeTaxJapan Support Desk
6F Marunouchi East Garden
2-4-1 Marunouchi, Chiyoda-ku, Tokyo 100-0005