HMRC have published new guidance Send a quarterly return for your non-resident landlord tax.
“Use these forms to send a quarterly return by post if you’re acting on behalf of landlords based outside the UK.”
https://www.gov.uk/guidance/send-a-quarterly-return-for-your-non-resident-landlord-tax
Related content from Claritax Books
Property Investment, by Satwaki Chanda, is a major work for serious property investors and their professional advisers. The text leads the reader through the cycle of property ownership, from acquisition to eventual disposal. At each stage, the complex tax issues are clearly explained and fully illustrated.