Mariana Coentro Ribeiro is a Managing Associate at Tax practice.

With more than 10 years’ experience, Mariana has experience working with national and international clients on transactional tax matters, within the context of M&A, corporate restructurings, financial operations, renewable energy, venture capital and private equity. Mariana is particularly experienced in corporate and international taxation, providing advice to clients in the analysis, structuring and implementation of foreign investments in Portugal and Portuguese investments abroad, with expertise on taxation of cross-border flows.

She also has experience in wealth management, in the structuring of personal and family wealth, and in tax litigation, and has advised clients on tax inspections and litigation, both before the tax authorities and before judicial and arbitration courts

Mariana is particularly active regarding international taxation, cryptocurrencies and digital tax, as well as taxation of permanent establishment and the challenges of remote work, having contributed for publications on these topics.

Joined CMS Portugal in 2023.