Luxembourg's Council of State approved the ratification of the 2019 tax treaty protocol with Argentina on 3 June 2025.  Luxembourg's Council of State approved the ratification of the 2019 income and capital tax treaty protocol with Argentina on

Kazakhstan and Oman signed their first income tax treaty on 29 May 2025.  Kazakhstan and Oman signed an income tax treaty on 29 May 2025 in Astana. The Omani delegation was led by Minister of Finance Sultan bin Salim al Habsi and included

The treaty now awaits formal signing and ratification. Representatives from the Czech Republic and Oman concluded negotiations for a treaty on income and capital taxes on 22 May 2025. The agreement is expected to eliminate double taxation

Luxembourg's Government Council approved the ratification of the amending protocol to the 1996 tax treaty with Vietnam on 15 May 2025. The protocol was signed to update the DTA according to the latest OECD standards. Signed on 4 May 2023, it

Oman's Tax Authority has signed an agreement, on 12 May 2025, with Omantel to introduce an electronic invoicing (e-invoicing) system as part of efforts to modernise the country's tax administration. The system aims to improve tax collection,

Luxembourg and San Marino have signed an amending protocol to the 2006 tax treaty between the two nations on 14 May 2025. This is the second amendment to the treaty – it was previously amended in 2009 – and will take effect after the exchange