Tax 101 for Americans in Portugal

Learn how to avoid double tax when both the U.S. and Portugal tax your worldwide income.

Is my U.S. Social Security income taxable in Portugal?

Which tax return do I file first?

Do I still have to pay Portuguese taxes if my job is in the U.S?

I read on the internet that I’d have to pay 53% in Portuguese tax. Is that true?

Coming soon from Areia Global: a U.S. law firm based in Miami and Lisbon advising Americans on cross-border tax and estate planning.

We are the only U.S. tax attorneys in Portugal. Americans expats are in a unique situation having to navigate both U.S. and Portuguese taxes on worldwide income. Learn how the two tax systems interact for American expats from the experts (for less than the cost of a consultation).

Sign up to get notified when the full Masterclass is released.

The Masterclass

Tax 101 for Americans in Portugal provides a concise framework for aligning the two systems before you move.

The program covers:

  • Which taxes U.S. citizens still have to pay after moving abroad

  • How the U.S.–Portugal tax treaty works and how to avoid double tax

  • Key forms every U.S. expat should know

  • Common coordination issues between IRS and Finanças filings

You’ll finish with a solid conceptual understanding, enough to know whom to hire, what you need, and mistakes to avoid along the way.

Why Reliable Information Matters

The IRS has publicly warned taxpayers that advice circulating on social media and message boards has led to incorrect filings and, this year, $162 million in penalties.

Tax 101 was designed to replace that noise with clear, attorney-led explanations, so you can understand your obligations confidently and avoid errors that could trigger enforcement issues, a situation especially difficult for Americans in Portugal who must often comply with the same aggressive notice deadlines as U.S. residents.

Who It’s For

  • Americans newly resident in Portugal

  • Remote workers, retirees, and digital nomads wanting to understand their obligations

  • Advisors who need a quick U.S. perspective on cross-border returns

What’s Included

  • 55-minute recorded class (viewable for 7 days)

  • Downloadable reference workbook + checklists

“A lot of info out there for expats doesn’t apply to Americans, and a lot of info for Americans isn’t specific to Portugal. This was very practical and full of relevant tips and tricks.”
-K.R., Porto

Frequently Asked Questions

Does this class prepare my tax return?
No, it explains how the system works so you can manage the process responsibly.

Is this legal advice?
No. It’s educational information from U.S. tax professionals for general understanding.

Can I download materials?
Yes, all reference guides and examples are included in your 7-day access window.

About the instructor

Sasha Young da Silva is the managing partner of Areia Global, a boutique tax law firm based in Miami with a partner office in Lisbon. She advises Americans who live in or invest in Portugal on U.S. tax obligations, treaty issues, and cross-border estate planning. She developed this course after seeing taxpayers take incorrect tax positions based on online hearsay, many of which later led to IRS notices or penalties.

This educational program does not constitute legal or tax advice and does not create an attorney-client relationship. For personalized guidance, please schedule a consultation.