DTA between Oman and Portugal signed

Portugal’s Supreme Administrative Court has ruled that foreign-source income is generally liable for municipal surcharge unless it can be attributed to a foreign permanent establishment. The judgment, issued on 25 February 2026, followed a case

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

Portugal’s Tax and Customs Authority has issued Circular Letter No. 20288/2026 on 2 February 2026, outlining municipal surcharge (derrama municipal) rates applicable to corporate taxable profits for the 2025 fiscal year. The circular specifies

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 Portuguese Tax and Customs Authority issued the Order of 5 January 2026, introducing new monthly withholding tax tables reflecting the updated personal income tax brackets set by the 2026 State Budget Law. Rates now range from 12.50% on

The Portuguese government has set new monthly withholding tax rates for employment and pension income in mainland Portugal for 2026 through Order No. 233-A/2026, issued on 6 January 2026. The changes reflect updates introduced in the 2026 State