2026 U.K. Dual Citizenship Passport Rules: Key Changes Explained

The rules for U.K. dual citizenship passport holders living abroad are set to change significantly in February 2026. This adjustment primarily impacts British and Irish dual nationals, who will need to meet new entry requirements when traveling back to the U.K.

Overview of Changes for U.K. Dual Citizens

Starting February 25, 2026, dual citizens will only be able to enter the U.K. using their British or Irish passport. Alternatively, they can use their foreign passport, provided they possess a Certificate of Entitlement. This certificate, which verifies their right to reside in the U.K., currently costs around £589 (approximately $800).

Reasons for the Change

This alteration is part of the U.K.’s new Electronic Travel Authorisation (ETA) system, designed to enhance border control. Similar to the U.S. Electronic System for Travel Authorization (ESTA), the ETA requires non-visa nationals to acquire a digital permit for entry into the U.K. However, British and Irish dual citizens will not be eligible for an ETA, leading to the strict new passport rules.

Key Dates for New Passport Rules

• Current: Dual nationals can enter using a foreign passport without needing an ETA.
• February 25, 2026: New rules come into effect, limiting entry to British or Irish passports or a foreign passport with a Certificate of Entitlement.
• Before February 25: Travelers can enter without an ETA but will need one for future visits.

Impact on Affected Individuals

The new regulations represent a minor inconvenience for those holding valid British or Irish passports. However, individuals without a British passport face a more significant challenge. Without proper citizenship documentation, they risk being denied boarding when traveling to the U.K.

Actions Required for U.K. Dual Citizens

To navigate the upcoming changes, U.K. dual citizens can take the following steps:

• Use a British or Irish Passport: Renewing a U.K. passport costs £94.50 (around $130) and typically takes up to three weeks.
• Obtain a Certificate of Entitlement: This costs £589 and is necessary when traveling with a foreign passport.
• Renounce British Citizenship: Travelers without a British passport may consider this option, though it has significant implications.

Emergency Travel Options

If an urgent trip arises, individuals may apply for an emergency travel document. This one-time document costs £125 (about $170) and allows for immediate travel.

Conclusion

Despite these changes, the U.K. continues to recognize the rights of dual nationality citizens to live and work in the country. While the new passport rules introduce complexities for those living overseas, planning ahead and understanding the requirements can help ease the transition.