Arias & Muñoz promotes tax pair

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Arias & Muñoz promotes tax pair

Arias & Muñoz has promoted both Ximena Tercero and Tania Solis to partner of the firm’s tax and fiscal practices in Guatemala and Panama.

Tercero has been an associate at the firm for more than seven years. She specialises in tax and fiscal planning and will lead the firm’s tax department in Guatemala.

Tercero advises clients on tax litigation across numerous sectors including energy and intellectual property.

Solis has been a part of the firm’s Panama office since its opening in 2011. She focuses her practice on fiscal, financial and regulatory matters in the banking, insurance and securities industries.

Solis also has experience in advising clients on corporate matters including M&A transactions.





Tania Solis
Tania Solis, partner at Arias & Muñoz
Ximena Tercero
Ximena Tercero, partner at Arias & Muñoz


more across site & shared bottom lb ros

More from across our site

As ITR data reveals that 2025 saw more than double the amount of private client hires than 2024, it seems firms are jostling for position
The US multinational paid 20% more tax in 2025 than 2024, it said; in other news, more than 25,000 HMRC staff have been upskilled on AI
Belt and Road Initiative countries face tax incentive conundrums due to pillar two, but relatively few countries would seek to scrap the project, ITR has heard
Hany Elnaggar examines how the OECD’s global minimum tax is reshaping the GCC’s investment incentive landscape, shifting the region from rate-based competition toward substance-driven economic positioning
The acquisition of a two-partner practice from Stephenson Harwood means that Charles Russell Speechlys has the largest private client team in Asia, the firm claimed
Complex and constantly shifting rules on global mobility mean ‘the risk is too great’ for staff to work abroad on personal time, EY’s Maureen Flood tells ITR
While it’s great that the OECD is alive to multinationals’ fears of being caught in a compliance trap, the ‘common understanding’ illustrates a worrying lack of readiness
Rising demand for specialist expertise has fuelled the growth in tax partner headcounts, Cain Dwyer found; in other news, Switzerland has been urged to reconsider pillar two
An OECD report on the taxation of the digital economy is expected by the end of 2026, according to the group of nations
Trophy assets are evolving from personal indulgences to structured investments, prompting family offices to prioritise tax efficiency, governance discipline, and cross-border compliance
Gift this article