• Home >
  • Flow to Initial Registration

Flow to Initial Registration

1. Install e-Tax software

Root certificates for initial registration, and the downloading and installing of the e-Tax software are explained in this page.

Top of the page

2. e-Tax software version upgrade

Before using the e-Tax software, users are required to upgrade the e-Tax software to keep this up to date at all times.
Please ensure to upgrade the e-Tax software by checking "e-Tax software version upgrade history (Japanese)" and the upgrade information provided at the time of the startup of the e-Tax software.

Top of the page

3. Initial registration

(1) Initial registration (for users who obtained user identification numbers, etc. online)


Users activate the e-Tax software, create user files, and then log in to the reception system to register electronic certificates, etc.


(2) Initial registration (for users who obtained user identification numbers, etc. with notifications (in writing))


Users activate the e-Tax software, create user files, and then log in to the reception system to change PIN, register the confirmation number for tax payment, etc., and register electronic certificates, etc.

Top of the page