I am going to the UK for an MA degree. According to the Tier-4 rules, I am not allowed to work more than 20 hours per week or be self-employed.
I currently have a published book, and I receive royalty income from it. The book was published in my home country prior to my obtaining a Tier-4 visa. Am I allowed to continue to receive such royalty income from my previous work while studying in the UK? Or would this be considered to be self-employment? I have sufficient savings to fund my time living in the UK without factoring in future royalty income.
A similar question was asked: How to publish a book having TIER4?, however this discusses publication of a book while on the visa, rather than publication before obtaining the visa.