Self assessment for 2021/2022

I landed in UK in July 2021. I did not file self-assessment for 2021/2022 due to misunderstanding. How can I submit back now? I cannot find the year 2021/2022 to submit in tax gateway and self-assessment system. Thanks.

Hi

Please have a look at File your Self Assessment tax return online.  You will be able to download and print off paper tax returns (SA100) and supplementary pages such as residence (SA109).  
The address to send the completed tax return to, is on the front page of the tax return.

Thank you