The situation is as follows:

1. Without a CA certificate, you can directly use your account number and password to log in for tax returns;

2. The login account number is the taxpayer identification number.

Taxpayer identification numbers are all composed of 15-digit code (character type), in which: taxpayers in enterprises, institutions and other organizations use the 9-digit code compiled by the State Bureau of Technical Supervision (in which the "-"symbol between the main code and the check bit is omitted and not printed), and the 6-digit administrative division code * * 15-digit code is added in front of it. The taxpayer code issued by State Taxation Administration of The People's Republic of China is 15 digits, of which: 1-2 digits are provincial and municipal codes, 3-6 digits are regional codes, 7-8 digits are economic codes, 9-11 digits are industry codes, and 11-15 digits are local serial codes.

3. The login password is the password set by the taxpayer himself.