Leonardo González Cossío



Leonardo is a senior associate in the tax consulting practice. He specializes in providing tax advice to national and international clients in different transactions, including mergers and acquisitions (“M&A”), carrying out due diligence processes and tax restructurings for different companies from a wide variety of industries.

Prior to rejoining SMPS Legal, after obtaining his master’s degree in Tax Law from The London School of Economics and Political Science, Leonardo worked at Grant Thornton in London, where he developed his tax advisory practice primarily for the private equity market in M&A operations, carrying out tax due diligence procedures, tax planning and tax structuring, and SPA negotiation and review from a tax perspective. His experience also includes litigation, as he has advised various national and multinational companies in administrative procedures and tax litigation matters at Hogan Lovells BSTL, and later at SMPS Legal, which has allowed him to have a 360° vision of the commercial and tax needs of each customer.

Leonardo is an expert in the review, preparation and filing of lawsuits and judicial documents, the evaluation of audits and administrative procedures, the conduction of meetings with clients and authorities, the preparation of legal opinions and tax consultations, the initiation and follow-up of appeals and trials before administrative authorities and judicial courts, as well as procedures before the Taxpayers’ Defense Bureau, tax planning, advice and negotiation in the incorporation, acquisition, reorganization and merger of companies. Additionally, he has experience in national and international tax matters, including the application of treaties to avoid double taxation.

Leonardo collaborated pro-bono with Asociación Tutelar, I.A.P., an institution that guides relatives of people with intellectual disabilities on testamentary issues and interdiction trials, in addition to protecting and promoting the rights of people with disabilities collaborating with various government agencies.



+52 55 5282 9063


Tax Consultancy





Universidad Iberoamericana (UIA)

The London School of Economics and Political Science (LSE)