Hi PL Cheung,
The government gateway user ID and password for businesses, cannot be used to submit an online commerical tax return for individuals.
You will need to register for a personal government gateway user ID and password to do that.
You need to have a government gateway user id and password.
If you do not have one you can create new one.
To be able to pass the identity verification process you will need:
• your National Insurance number
• a recent payslip or P60 or a valid UK passport
If you cannot pass the identity verification question then you need to use the get help option at the bottom of the page giving details of what
the error message is, and the digital team will reply:
You cannot access the service from this page