Travellers from countries including the United States and Australia must now secure an Electronic Travel Authorisation (ETA) before entering the UK. The requirement applies to citizens of 85 nations who previously travelled visa-free. The government says the move will enhance border security and streamline entry procedures. An approved ETA allows multiple visits, with stays of up to six months for tourism, business or short-term study.

The permit costs £16, with plans for a future increase to £20. Applications are completed online or through a mobile app, where travellers submit passport information, a photograph and answer a series of questions. Decisions are often issued quickly. The ETA is electronically linked to the passport and checked by airlines and other transport operators before departure.

Although an ETA grants permission to travel, it does not guarantee entry. Visitors must still pass through UK border control and could be refused admission if issues arise. Those whose ETA applications are declined cannot appeal and must instead apply for a visa. Travellers who already require a visa do not need to obtain an ETA.

The policy has created difficulties for some dual nationals. British citizens holding another nationality are ineligible for an ETA and must use a British passport or obtain a certificate of entitlement, both of which involve additional cost and administration.