U.S. Expat Tax Mistakes, Business Structures & Life in Spain with Nicolás Castillo, CPA

In this episode of Passport to Wealth™, Arielle Tucker, CFP®, EA sits down with Nicolás Castillo, CPA, founder of Rook International CPAs and Advisors, to demystify the tax complexities U.S. expats face abroad. From setting up a business in Spain to navigating Social Security agreements and international tax filings, Nicolás shares practical advice for digital nomads, remote workers, and entrepreneurs building global lives.

U.S. expat taxation is notoriously complicated, but Nicolás breaks down everything from the Beckham Law and self-employment pitfalls to how tax treaties and reporting thresholds really work. Learn how to avoid the most common filing mistakes, why most Americans still need to file a tax return abroad, and how to legally reduce your tax burden while living in Spain, France, Italy, and beyond. If you're a U.S. citizen managing income across borders.

Whether you're planning your move or already living overseas, this episode is packed with tax-smart strategies you can't afford to miss.