Americans in Portugal are increasingly open to severing formal ties with their home country. A survey conducted between March 17 and March 18, 2026, found that 49% of respondents would at least consider renouncing their U.S. citizenship once they obtain a Portuguese passport. The data suggests a shift in how Americans view the long term value of dual nationality when faced with domestic political friction and international tax obligations.

The poll sampled 200 U.S. citizens who are considering a move, currently planning one or already residing in Portugal. Renunciation was once a rare administrative outlier, but in the modern era, it’s now a popular strategy for those seeking a permanent life in the European Union.

The researchers found that for many, the decision isn’t merely about logistics but reflects a deeper break from American civic life.

What motivates the desire to renounce?

Political factors dominate the reasoning for those most certain about leaving their U.S. citizenship behind. Among the respondents firmly in favor of renunciation, 83.1% cited political disenchantment as a primary driver. This sentiment outpaced economic or lifestyle concerns for this specific subgroup. The survey indicates that the current American political climate acts as a push factor that persists even after the physical move to Europe is complete.

Financial burdens also play a significant role for those already on the ground. Among respondents currently living in Portugal, 38.5% highlighted the complexity and cost of U.S. global tax filing as a key motivator. The U.S. is one of only two countries that taxes based on citizenship rather than residency. This means Americans in Lisbon or Porto must file with the Internal Revenue Service every year regardless of where they earn their income.

How does the tax system affect Americans in Portugal?

Federal law requires U.S. citizens to report all global income, foreign bank accounts and certain foreign assets. These requirements often lead to double taxation on specific investment vehicles that the Portuguese government treats differently than the U.S. government. The administrative cost of hiring specialized accountants to manage these filings can reach several thousand dollars annually. For some, the price of keeping the passport isn’t worth the paper it’s printed on.

Renunciation is not a simple or free process. The U.S. Department of State currently charges a fee for the oath of renunciation. The process involves:

• An initial interview with a consular officer.
• A formal renunciation appointment at a U.S. embassy or consulate.
• Payment of a $2,350 administrative fee.
• Submission of Form DS-4080 and Form DS-4081.

What does this mean for emigration patterns?

The data appears to show that Americans in Portugal are becoming more than a transient expat population. If nearly half of these individuals are willing to consider renouncing, they’re looking for total integration into the European system.

This trend complicates the traditional view of Americans abroad as temporary residents who eventually return home to retire or work. These findings don’t prove that a mass wave of renunciation is imminent, because the legal path to Portuguese citizenship takes at least five years of legal residency.

Still, the intent is clear. The data shows that the combination of citizenship-based taxation and political polarization is actively eroding the perceived benefit of American nationality for those who have successfully relocated. As of March 2026, the cost of compliance and the weight of domestic politics are the two strongest forces driving Americans to consider a permanent legal exit.