Oman published Royal Decree No. 70/2024 in the Official Gazette on 5 January 2025, introducing the Supplementary Tax Law.
Earlier, The Oman Tax Authority has confirmed that a Royal Decree has been issued which implements a domestic minimum top-up tax, with a minimum effective tax rate of 15%, for multinational enterprise (MNE) groups in Oman, provided that these groups generate annual revenues of around OMR 300 million (EUR 750 million).
The initiative is in alignment with global rules to combat base erosion and profit shifting (BEPS).