You can use it to apply for any course where there are still vacancies and hopefully secure an offer. There’s no limit to the amount of UCAS Extra choices you can make, but you can only have one application being considered at a time.
Students who are not currently holding an offer but have used all of their choices (either they were unsuccessful, they declined the offers they received, or a combination of both).
Eligible students will be able to ‘Add an Extra choice’ in the ‘Your choices’ section of UCAS Track, up until the end of June. You will need to check which universities/courses have vacancies either through the UCAS website by filtering courses as ‘available through Extra’, or by contacting the university directly.
You can only hold one offer, so you can’t have an insurance choice as a backup.