Oman has published Royal Decree No. 70/2024, regarding the implementation of supplementary tax on multinational enterprises.The Decree introduces a Domestic Minimum Top-Up Tax and an Income Inclusion Rule that will apply to multinational enterprises operating in Oman with a consolidated annual revenue amounting to or exceeding the Omani Rial equivalent of €750m in two of the last four fiscal years.Businesses should review the provisions of Royal Decree No. 70/2024 and carry out appropriate impact assessments as applicable. Executive summaryOn 31 December 2024, the Sultanate of Oman issued Royal Decree No. 70/2024, regarding the Supplementary Tax Law on Entities Affiliated with Multinational...