Oman: OTA issues reminder for 2025 tax return deadlines

According to an OECD update, Montenegro, Oman, Panama, Peru, Rwanda, and Uruguay signed the Multilateral Competent Authority Agreement on Automatic Exchange of Information under the Crypto-Asset Reporting Framework (CARF MCAA) and the Addendum to

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. Earlier, Estonia published Decision

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 issued the Royal Decree No. 105/2025 on 14 December 2025 ratifying the income tax treaty with Iraq. Iraq and Oman signed the income and capital tax treaty on 3 September 2025. The agreement aims to eliminate double taxation and prevent

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,