DT17103 | Double Taxation Relief Manual: Slovenia: notes
From HM Revenue & Customs · Double Taxation Relief Manual
Professionals, teachers and researchers (Article 13)
An individual who visits the UK for the purpose of teaching or engaging in research in a recognised educational institution will be exempt from tax on the remuneration from such teaching or research provided:
the individual was a resident of Slovenia immediately before the visit; and
the visit does not exceed two years