Second Passport for US Citizens

Citizenship & residency options for US citizens and residents

US citizens and long-term residents face a unique international planning challenge: the United States taxes its citizens on worldwide income, regardless of where they live. This citizenship-based taxation creates both a burden and a planning imperative for globally mobile Americans. Renouncing US citizenship is a legal option — and for some, the right one — but requires first establishing another citizenship, making second passport planning a legal prerequisite rather than a luxury.

Why US persons are considering a second citizenship

Citizenship-based taxation

The US is one of only two countries (alongside Eritrea) that taxes its citizens on worldwide income, regardless of residency. Moving to Portugal, the Cayman Islands, or Singapore does not remove US tax obligations — it manages them through FEIE and foreign tax credits, but does not eliminate them. For high earners with significant international income or assets, this creates a structural disadvantage that a second citizenship and, eventually, legal expatriation can address.

FATCA and FBAR compliance costs

FATCA (Foreign Account Tax Compliance Act) and FBAR (Foreign Bank Account Reports) impose significant reporting obligations on US persons for foreign financial accounts and assets. Foreign banks increasingly refuse US-person clients to avoid FATCA compliance overhead — making international banking, investment account opening, and wealth management progressively more difficult for Americans living abroad.

Exit planning and renunciation as a legal option

For US citizens who determine that citizenship-based taxation is incompatible with their international lifestyle or business structure, renouncing US citizenship is a legal right. However, the IRS requires that a renouncing citizen hold another citizenship before relinquishing the US one — an expatriate without a second passport becomes stateless, which is legally impermissible. Acquiring a second passport is therefore a legal prerequisite for any renunciation strategy.

Long-term residency and lifestyle abroad

Americans wishing to remain in Europe beyond 90 days under Schengen rules, retire in Southeast Asia, or establish a business base in Latin America need formal residency or residency-by-investment. US passport strength is excellent for tourism, but visa-free tourism access is categorically different from the right to live, work, bank, and own property abroad.

Key considerations for US persons

The US is one of only two countries (alongside Eritrea) to tax citizens on worldwide income regardless of residency. Moving abroad does not eliminate US tax obligations — it manages them, through FEIE, FTC, and treaty provisions, but does not remove them.

FBAR and FATCA reporting requirements follow US persons globally, creating compliance obligations that foreign financial institutions increasingly resist. This has made banking abroad progressively more difficult for Americans.

Renouncing US citizenship triggers an Exit Tax on deemed disposal of worldwide assets (for those meeting the threshold). Renunciation without a replacement citizenship is inadvisable — you must hold another passport before relinquishing the US one.

US residents (Green Card holders) face similar worldwide income tax obligations and can trigger exit tax implications on abandoning Green Card status. Treaty elections and proper planning are essential.

Speak with a verified adviser

Our advisers specialise in US persons and can advise on your specific situation — tax residence, investment route, and citizenship timeline.

Private enquiry →

Our top 3 recommended programmes for US persons

#1🇵🇹

Portugal

Passport #5 · 186 destinations

Why we recommend it

Portugal's NHR/IFICI regime provides preferential income tax rates for new residents, and a US-Portugal double tax treaty handles key issues including social security. For US persons willing to spend 183+ days in Portugal, it offers the closest thing to a tax-efficient EU lifestyle — with EU citizenship after 5 years. Portugal has the most developed infrastructure for American expats of any European country, with local tax advisers who specialise in the US-Portugal interface.

View Portugal programme →

#2🇵🇦

Panama

Passport #25 · 141 destinations

Why we recommend it

Territorial taxation (Panama taxes only Panama-source income), a dollar-denominated economy, geographic proximity to the US, and no currency risk make Panama the most practical non-European option for US persons. The Qualified Investor Visa and Friendly Nations Visa provide fast residency paths at very low thresholds. Panama's banking sector, while subject to FATCA reporting, is experienced in handling US-person accounts in ways that Caribbean and European banks often are not.

View Panama programme →

#3🇰🇳

Saint Kitts & Nevis

Passport #19 · 157 destinations

Why we recommend it

The Caribbean's most established citizenship-by-investment programme (operating since 1984) is the most common second passport acquired as part of a US renunciation planning structure. Processing takes 45–60 days with no residency requirement. The St Kitts passport provides 156 visa-free destinations and satisfies the IRS requirement that a renouncing US citizen hold another citizenship before relinquishing the American one. Minimum contribution from USD 250,000 to the Sustainable Island State Fund.

View Saint Kitts & Nevis programme →

View all programmes →