What do the new passport rules mean for dual nationals?
Asked by: Ms. Romaine Labadie III | Last update: July 4, 2026Score: 4.8/5 (18 votes)
As of February 25, 2026, new UK passport rules mandate that British dual nationals must use a British or Irish passport (or a Certificate of Entitlement) to enter the UK, as they are ineligible for the new Electronic Travel Authorisation (ETA). Airlines now check these documents upon departure, meaning dual citizens without a UK passport may be denied boarding.
Are there any new rules for dual citizenship?
As of May 2026, dual citizenship remains legal in the U.S., but a proposal called the Exclusive Citizenship Act of 2025 (S.3283) has been introduced to ban it. The bill is currently a legislative proposal and has not yet been enacted into law, with reports suggesting it has low chances of immediate passage.
What are the new rules for dual passport holders?
Effective February 25, 2026, all UK or Irish citizens, regardless of dual citizenship, must have a valid UK or Irish passport or certificate of entitlement when travelling to the UK.
Do I need two passports if I have dual citizenship?
Yes, you should possess and carry both passports if you have dual citizenship, particularly if one is a U.S. passport. Generally, you must use your U.S. passport to enter and leave the U.S. and your other passport to enter that specific foreign country, ensuring you use the same passport to enter and exit each respective country.
What is the downside of having dual citizenship?
Dual citizenship offers benefits but entails significant drawbacks, including complex tax obligations (especially for U.S. citizens), mandatory military service in certain countries, potential security clearance limitations, and increased legal complications. Dual citizens may also face limited consular assistance and must adhere to specific, sometimes conflicting, laws in both nations.
New passport rules for Britons with dual citizenship
Should dual nationals travel with both passports?
To travel, you need the complete set of documents. Some countries require their citizens to enter and exit with their national passports. That's why you must travel with all your valid passports. Make sure you have all the necessary travel documents.
What is the proposed bill to end dual citizenship?
Senator Bernie Moreno (R-Ohio) introduced the Exclusive Citizenship Act of 2025 (S. 3283) in December 2025, proposing to end dual citizenship for U.S. citizens. The bill requires Americans to have sole allegiance to the U.S., mandating that dual citizens renounce foreign allegiances or risk losing their U.S. citizenship.
Is ICE detaining green card holders?
Yes, ICE is detaining lawful permanent residents (green card holders) in 2026, especially those with old criminal records, at airports upon re-entry, or at scheduled immigration check-ins. While not the primary target of broad raids, LPRs can be detained if believed to be deportable under the Immigration and Nationality Act.
What countries don't allow dual citizenship?
Countries that do not allow dual citizenship require individuals to renounce their previous nationality upon naturalizing or require their citizens to choose only one nationality by a certain age. While policies vary (some have narrow exceptions), the following countries generally prohibit it:
Do dual citizens need to show both passports?
Yes, dual citizens should carry both passports, but you generally show only one at a time, depending on the checkpoint. As a U.S. dual national, you are legally required to use your U.S. passport to enter and depart the United States. When arriving in your other country of citizenship, use that country’s passport.
What are the disadvantages of having a dual passport?
Disadvantages of second and dual citizenship
Most of them are potential risks, not inevitable. Potential of double taxation. The risk of double taxation is the flip side of the opportunity to reduce taxes for dual citizens. Depending on the country and its laws, this risk appears for foreign income or property tax.
Can you lose U.S. citizenship if you have dual citizenship?
No, you generally do not lose your U.S. citizenship simply by having or acquiring dual citizenship. The U.S. government recognizes dual nationality and does not require you to choose one over the other. U.S. citizenship is only lost if you voluntarily perform specific acts, such as formally renouncing it, with the intention of giving it up.
Is Elon Musk a citizen of the United States?
Yes, Elon Musk is a citizen of the United States. He was born in South Africa and later immigrated to Canada, but he officially became a naturalized U.S. citizen in 2002. In addition to his American citizenship, he also holds citizenship in Canada and South Africa.
Which is the toughest citizenship to get?
Vatican City and Qatar are globally recognized as the hardest countries to obtain citizenship. Vatican City requires holding specific diplomatic or clerical offices for the Holy See. Qatar demands 25 years of continuous residency, prohibits dual citizenship, and requires a high degree of cultural integration.
Do you lose social security if you have dual citizenship?
Dual citizenship generally does not prevent you from collecting U.S. Social Security benefits if you earned them through qualifying work. However, it can affect benefit amounts through foreign pension calculations (Windfall Elimination Provision) and impact tax obligations or payment delivery if you live outside the U.S..
What's the downside of dual citizenship?
Claims of other countries upon U.S. dual-nationals may result in conflicting obligations under the laws of each country. U.S. dual nationals may also face restrictions in the U.S. consular protections available to U.S. nationals abroad, particularly in the country of their other nationality.
What are the new dual citizenship rules?
As of early 2026, dual citizenship remains legal in the United States, allowing Americans to hold two passports without automatically losing U.S. citizenship. While the "Exclusive Citizenship Act of 2025" was introduced to potentially ban dual nationality, it is currently stalled, with no immediate changes to existing regulations.
How likely is it that the US will ban dual citizenship?
The Exclusive Citizenship Act of 2025, introduced by Senator Bernie Moreno in December 2025, would ban dual citizenship for Americans. Even so, legal and policy experts give it about a 3% chance of passing. Constitutional limits, real-world enforcement problems, and weak bipartisan support make it very unlikely.
Did Trump change the U.S. citizenship test?
Yes, the Trump administration implemented a harder U.S. citizenship civics test in late 2025 (effective October 20), increasing the question bank from 100 to 128, asking 20 questions instead of 10, and requiring 12 correct answers to pass. The new test emphasizes more complex history and government questions, reducing easier geography questions to make citizenship harder to earn.
Is there a new law regarding dual citizenship?
As of May 2026, dual citizenship remains legal in the U.S., but a proposal called the Exclusive Citizenship Act of 2025 (S.3283) has been introduced to ban it. The bill is currently a legislative proposal and has not yet been enacted into law, with reports suggesting it has low chances of immediate passage.
Which passport should you use if you have dual citizenship?
As a dual citizen, you must use the passport corresponding to the country you are entering or leaving. Generally, use your U.S. passport to enter/exit the U.S. and your other passport for the foreign country. Always carry both passports to show airlines for boarding and immigration officers at borders.
Which passports don't allow dual citizenship?
Countries that do not permit dual citizenship generally require citizens to renounce their previous nationality upon acquiring theirs or revoke citizenship if a second one is obtained.
Is Elon Musk a Canadian citizen?
Yes, Elon Musk is a Canadian citizen. He holds triple citizenship (South Africa, Canada, and the United States) and obtained his Canadian status through his mother, Maye Musk, who was born in Regina, Saskatchewan. He immigrated to Canada in 1989.