Hi
As you will be in receipt of income from property, you will meet the criteria needed for you to complete a self assessment tax return.
You can register for self assessment at
Register for Self Assessment if you're not self-employed
If you want to be able to submit a tax return online while you are not resident in the UK, you will need to obtain a government gateway user ID and password, as well as purchase a 3rd party commercial tax return that covers residence.
The online HMRC tax return does not include residence and cannot be used. Your alternative is to submit a paper tax return SA100, Sa105(property) and SA109 (Residence).
Please not that your tax return must be submitted in its entirety either online or on paper. You cannot have a combination of the two.
Have a look at
File your Self Assessment tax return online.
Thank you