Tax law is one of our standout areas, thanks to the education and professional experience of the members of our Firm.

In this area, we focus on providing advisory services on all aspects of taxation for national and international groups in a wide variety of industries. Our aim is to achieve fiscal optimization for our clients in their financial and business operations through proper planning and an ongoing advisory relationship:

  • Ongoing advisory services for companies regarding the fulfillment of their tax obligations in order to optimize their tax burden.
  • Analysis of taxation for specific financial transactions, such as acquisitions, mergers, takeovers, spin-offs of lines of business, etc.
  • Tax planning for corporate structures from both a national and international perspective.
  • Taxation for personal and family assets, emphasizing estate and inheritance taxation.
  • Advice and tax planning for groups taxed under the fiscal consolidation regime.
  • Taxation for trusts and not-for-profit organizations, such as foundations and associations.
  • Transfer pricing policies.
  • Relations with the Tax Administration, especially with regard to representation in the event of a tax inspection.
  • Appeal and claim proceedings involving the Tax Administration and contentious-administrative courts.
  • Tax audits.
  • Advice on local taxes and rates merits special consideration, as these types of taxation are often overlooked. Despite this, they may represent a significant financial burden.
  • Tax planning for investments in other foreign countries from abroad through Spanish holding companies.
  • Application of double taxation treaties and optimization of taxation for capital gains, dividends, interest and royalties.



In an increasingly complex legal environment, companies and organizations of all kinds are subject to regulatory compliance obligations, to the control of regulatory bodies and to contractual obligations with third parties that involve a deep understanding of the regulatory risks of their business.

From ARCO Abogados we offer our clients the preparation of their Compliance program and their Ethical Code, providing, among others, the following services:

  • The elaboration of Conduct and Ethical Codes.
  • Review of the analysis and assessments of compliance risks.
  • The design and implementation of adequate controls of legal and compliance risks.
  • The design and implementation of effective Compliance programs.
  • The audit and preparation for obtaining an accredited certification of its Compliance Management Systems.
  • Implementation and management of Reporting Channels that offer employees anonymity, professionalism, and impartiality.
  • Implementation of Compliance training and communication plans, adapted to the specific Compliance program, as well as to the entity's Ethical Codes and its operating structure.
  • Specific training in terms of prevention and management of legal and compliance risks.
  • Specific training in terms of legal risks specific to the client's activity.
  • Specific plans and actions for internal and external communication on Corporate Social Responsibility (CSR) and Regulatory Compliance.
  •  Implementation of “Due Diligence” procedures on suppliers and third parties.
  • Anti-fraud programs in accordance with OM HFP/1030/2021 of transformation, recovery and resilience plans.
  • Performing Compliance Audits, in order to check the level of implementation of the existing Compliace Program, as well as its effectiveness and operation.