CELIA Alliance Newsletter: January 2026

Posted on 28th January, 2026
, in OECD 
 | 

Estimated reading time 2 minutes

This month’s read:

  • How the OECD’s updated Model Tax Convention affects cross-border remote working and permanent establishment risk
  • A landmark German court ruling reshapes equal-pay claims and associated employer risk
  • Mexico’s proposed reduction of the statutory workweek - what does it mean for employers on the ground?

Also, check out our Global Mobility Hub resources:   

  • Assess international remote working risk in 18 jurisdictions
  • Download our survey of expatriate tax regimes across Europe, North America and China

International News

OECD Update to Model Tax Convention on Income and Capital

French member firm, Galahad, offers insights into the OECD’s update to the Model Tax Convention on Income and Capital for cross-border teleworking.

The new Commentary provides long-awaited clarification on when remote work from another state, including from a home office, may create a permanent establishment for an enterprise.

Germany Announces Pivotal Change for Equal-Pay Claims

German member firm, Keller Menz, highlights a landmark decision of the German Federal Labour Court.

This development is pivotal for all employers with employees in Germany, including non-German multinationals, and should trigger a review of pay structures and compliance frameworks.

Mexico’s Workweek Reform: Legal Implications and Transitional Regime

Mexican member firm, Von Wobeser, reports on Mexico's new workweek reform and the legal implications this presents for businesses.

On December 3, 2025, Mexican President Claudia Sheinbaum Pardo announced an initiative to reform both the Constitution of the United Mexican States and various articles of the Federal Labor Law with the objective of reducing the workweek from 48 to 40 hours.

How can CELIA Alliance help?

We help international organisations make the most of their people wherever they are in the world by providing the best integrated multidisciplinary legal and tax services through a common approach to client service and shared values.

CELIA Alliance also offers comprehensive international assignments and global mobility, tax and social security compliance services. We can help you make the most of employing, organising, paying, incentivising, and moving your people within and across borders.