Australian travellers will soon have to seek permission to enter the United Kingdom under changes designed to strengthen border security.

Under the scheme first launched last November, those intending to travel to the UK who do not require a visa would need permission to travel before arrival, in the form of an Electronic Travel Authorisation (ETA).

On Wednesday, the UK government announced the scheme would be expanded to include travellers from non-European countries, including Australia, later this year. ETA applications will open on November 27, however, not be required to travel until January 8, 2025.

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By April 2025, all visitors – including children – will need an ETA to travel to the UK.

The ETA costs £10 – or about A$20 – and permits multiple journeys to the UK for stays of up to six months at a time over two years or until the holder’s passport expires.

The application process is done using the UK ETA app and once approved – typically within three working days – it will be linked to a traveller’s passport.

UK Minister for Migration and Citizenship Seema Malhotra said the new digital system would “enable a smooth experience for the millions of people who pass through the border every year”.

“The worldwide expansion of the ETA demonstrates our commitment to enhance security through new technology and embedding a modern immigration system.”

The scheme is already in place for travellers from Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates.

The UK Government is currently working with airlines, maritime and rail carriers, to ensure a smooth implementation.