Slovenia Website Slovenian Tax authorities on the implementation of the new EU VAT E-Commerce regulation/OSS & IOSS 11 June 202178 views1 min read Source gov.si E-Commerce / Electronic services One Stop Shop E-Commerce VAT Reform 2021 – Publication Of Detailed Information Regarding OSS/IOSS ECJ C-235/21 (RAIFFEISEN LEASING) – Questions – Can a written agreement be considered as an invoice?