The United Kingdom has begun enforcing new Electronic Travel Authorization (ETA) rules for travelers from 85 countries, effective from February 25, 2026. The system applies to visitors who previously could travel visa-free, including those from the United States, Australia, and several other nations. The UK government stated that the ETA will enhance the efficiency and security of its immigration process. Travelers must apply online or through a mobile app, providing passport details, contact information, and a photo. The ETA costs £16 and remains valid for two years or until the passport expires.

The new system allows multiple entries for short-term visits such as tourism, business, or short courses, but it does not guarantee entry, as travelers must still pass immigration checks. British and Irish citizens, as well as those with permanent residency or certain exemptions, do not require an ETA. Dual citizens, however, face complications if they lack a British passport or a Certificate of Entitlement, which could prevent re-entry into the UK.

The UK Home Office emphasized that airlines and transport operators will verify ETA status before boarding, and applications should be submitted at least three working days in advance.