News in Brief, December 2025

DOMESTIC NEWS

• On 27 November 2025, the outgoing government approved a new accounting law and accompanying legislation. Once submitted, the bills should be debated by the chamber of deputies.  
   
• Financial Bulletin 18/2025 contains the dates of tax obligations (tax calendar) in 2026.
   
• Financial Bulletin No. 17/2025 contains a communication on the application of the Treaty between the Czechoslovak Socialist Republic and Japan for the avoidance of double taxation with respect to taxes on income. 
   
• Financial Bulletin No. 16/2025 contains Instruction No. MF-20 on setting deadlines in tax administration.  
   
• Decree No. 489/2025 Coll., on the determination of basic rates of foreign meal allowances for 2026, has been published in the Collection of Laws. 
   
• Decree No. 451/2025 Coll., on certain submissions via prescribed forms within the scope of the Czech Customs Administration, has been published in the Collection of Laws. 
   

​FOREIGN NEWS

• The OECD has published an update to the Model Tax Convention on the Avoidance of Double Taxation.  The update contains one change to the model agreement itself (Article 25), while the other changes concern the commentary (Articles 5, 7, 9, 25, and 26), including detailed guidelines on cross-border remote work (more here) and the taxation of income from the extraction of natural resources.
   
• The European Commission has published an evaluation report on the Directive on Administrative Cooperation (DAC) in the field of Taxation. The report confirms that the DAC provides a functional legal framework but recommends further simplification, harmonisation of interpretation across the EU and strengthening of sanction mechanisms. For DAC 6 (reporting of cross-border arrangements), the Commission plans to clarify and specify the characteristics (‘hallmarks’) of reportable arrangements, while considering incorporating the principles of the proposed directive against the abuse of shell companies (Unshell) into mandatory reporting. 
   
• The OECD has published an updated list of countries that have signed the multilateral agreement on the automatic exchange of information under the GloBE rules (GIR MCAA, Pillar 2). The signatories include Austria, Belgium, Denmark, Finland, France, Germany, Hungary, Ireland, Italy, Japan, South Korea, Liechtenstein, Luxembourg, the Netherlands, New Zealand, Norway, Portugal, Slovakia, South Africa, Spain, Switzerland, and the United Kingdom.