Arteaga Gorziglia & Cia Abogados

Arteaga Gorziglia & Cia Abogados fields specialists in tax advice, designing tax strategies, tax planning, defence-side taxpayer matters, and the resolution of tax controversies. Recent mandates include internal group reorganisations and the tax aspects of domestic and international M&A transactions; the team is also increasing sought out by family offices to structure their overseas investments. Group head Andrés Ossandón assists both companies and individuals with tax planning and litigation, particularly in the retail, real estate, energy and infrastructure sectors. Ossandón is also experienced in M&A taxation, cross-border matters, and the application of tax treaties so as to avoid double taxation. At associate level, Gonzalo Ferraz De Andrade has ‘significant experience in complex tax and cross-border cases’. Since the conclusion of research, Ossandón has left the firm - effective as of October 2025; the firm has since hired Maximiliano Concha (formerly at PAGBAM Schwencke Chile) as practice director - effective as of January 2026.