Competent Authority Cases

Learn About the Many Benefits of the Competent Authority Process

The Competent Authority process is designed to help taxpayers like you avoid, or at least minimize, international double taxation, and to provide other forms of assistance to U.S. and foreign taxpayers in an international context. Many taxpayers are unfamiliar with the Competent Authority mechanism and do not understand on a practical level how the process works or how taxpayers can benefit from it.

Castro & Co. can walk you through this process to ensure you maximize the benefits for your tax liabilities. Give us a call at (833) 227-8761 to schedule a free consultation.

Working With Our Competent Tax Firm

Castro & Co. understands the Competent Authority process, knows the players, and can use the process to benefit our clients. Our professional can work with the Competent Authorities around the globe, including Belgium, Canada, Germany, Japan, Mexico, the United Kingdom and, of course, the United States, to secure treaty benefits and to minimize double taxation for our clients.

If you are faced with the prospect of international double taxation, are concerned that the United States or a foreign country is imposing tax in a manner inconsistent with an income tax treaty, or need government assistance to obtain documents, reach out to our firm immediately.

Castro & Co. can help you:

  • Advise on prior experiences with the Competent Authority of the relevant country and the best strategy for obtaining the requested relief.
  • Prepare written Competent Authority request for assistance, tailored to your situation and the formal (and informal) requirements of the relevant Authority.
  • Meet with the appropriate U.S. and/or foreign government personnel to promote timely and favorable action on the Competent Authority request.
  • Draft proposed Competent Authority ruling or agreement.

To begin this process, call (833) 227-8761 for tax representation at one of our offices in Washington DC, Miami, Dallas or Orlando. We also represent clients all over the world.


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