Oman ratifies income tax treaty with Iraq

Austria and Oman signed an income and capital tax treaty on 28 January 2026. The agreement seeks to prevent double taxation and fiscal evasion between the two nations. The treaty will enter into force after the exchange of ratification

The income tax treaty between Estonia and Oman entered into force on 24 November 2025. Signed on 27 October 2024, the agreement seeks to prevent double taxation and fiscal evasion between the two nations. It will take effect after the

The Hong Kong Inland Revenue Department (IRD) has announced that officials from Hong Kong and Oman will meet for the first round of talks on an income tax treaty from 5 to 9 January 2026. If successfully concluded, this would mark the first tax

Oman’s Tax Authority (OTA) has released a draft electronic invoicing (e-invoicing) data dictionary for consultation on 1 December 2025. This is part of preparations for the country’s e-invoicing rollout in August 2026. The data dictionary,

The Oman Tax Authority (OTA) has released an updated set of Frequently Asked Questions (FAQs) on e-invoicing, providing detailed guidance on the country’s electronic invoicing framework. The e-invoicing rollout, initially planned for 2024, was

The Oman Tax Authority (OTA) has released the draft e-invoicing data dictionary to selected taxpayers ahead of the August 2026 rollout. It defines standard data elements, validation rules, and code lists for all transaction types across B2B, B2C,