GCCMatters

About us

Our mission is to help customers find practical solutions for tax matters within the GCC region and internationally.

From one person businesses to multinationals. Companies are guided through VAT, Customs, Personal Income Tax, International Tax Planning, Transfer Pricing and other relevant Tax legislations.

We work in collaboration with professional advisory and compliance firms around the world.

Our services:

• CT and VAT Advisory.
• Tax Compliance (CT & VAT).
• Tax Audits/Investigations and Disputes.
• Tax Policy and Risk Management for Remote Workers and Digital Assets.
• International Tax Structuring and Planning.
• Tax for M&A and Reorganization.
• Corporate Transactions.
• Business Formation & Structuring.
• Asset Protection & Estate Planning.
• International Wealth and Succession Advisory.
• Tax Technology.
• VAT Implementation & Tax Technology Solutions.
• Cryptocurrency Tax Compliance and Structuring.
• Public Sector Tax Advisory.
• Business Formation & Structuring.
• Cross-Border Diplomatic Tax Negotiation.
• Global Expatriate Taxation and Relocation.
• Tax Trainings.
• Legal Services.
• Capital Markets Advisory.
• Audit and Accounting.
• Incorporation of Companies in the UAE and The Netherlands.

Our team

Crystabel Monsiváis
Tax Partner / International Tax Advisor

She provides international VAT/Tax Advisory services, VAT compliance, Corporate Tax Advisory, Interim Management, VAT trainings and ERP implementation (SAP & Oracle). Moreover, GCC VAT Implementation in the Middle East.

Crystabel Monsiváis, International Tax Lawyer, has worked for PwC and E&Y as VAT Indirect Tax specialist for multinationals on a global scale in the Americas, Europe, Middle East and Asia.

She developed experience with companies dedicated to telecommunications, trading, transportation, retail, manufacturing, industrial polymers, fertilizers, medical and others.

Due to her Tax/VAT specialist in-house and interim experience with well-known companies like General Electric, Calvin Klein, ASICS, Polycom, COFCO International, Ritchie Bros and others gained a combined knowleadge within different type of taxes.

Her professionalism, strong interpersonal skills and eagerness to share knowledge have helped her successfully participate in multiple VAT/Tax interim projects.

Key areas of ecpertise are from elaborating VAT manuals, process improvements, trainings, Tax/VAT audits support, ERP implementations (Oracle and SAP) to backfilling Senior Tax Managers and more.

She can easily communicate on Tax/VAT awareness and the interaction of other taxes, accounting and the ERP systems from non-financial teams to CEOs.

Vivien Tomio-Onghay
International Tax Advisor | Trust and Estate Practitioner (TEP)

Vivien Tomio-Onghay is an International Tax Advisor and Registered Trust and Estate Practitioner (TEP), known for advising high-net-worth individuals, Fortune 500 companies, multinational enterprises, and governments. Her advisory practice spans Europe, Africa, and the Middle East, with a focus on global tax strategy, wealth structuring, and cross-border corporate planning.

Drawing on her diplomatic experience as Malawi's former Hon. Consul and Head of Mission to Austria in Vienna, Vivien brings a distinctive edge to her work. She combines legal acumen, international negotiation expertise, and deep familiarity with global regulatory frameworks.

She is particularly adept at navigating complex, multi-jurisdictional matters, including international tax compliance, cross-border tax dispute resolution, and the relocation of individuals and businesses. Vivien also advises on the implementation of innovative tax technology solutions that promote transparency, scalability, and long-term regulatory adaptability.

                                                                          Contact us at

  info@gccmatters.com

                                                                 Phone: +97143197636 Fax: +97143197474
          Level 41, Emirate Towers, Sheikh Zayed Road, Dubai, United Arab Emirates