First, check that the start date of your new course of studies (as stated on your CAS) is no more than 28 days after the end of your current immigration permission. If the start date is later, you must leave the UK and apply from your home country.
Second, you must have either a Tier 2 visa sponsored by your employer or a Tier 4 visa sponsored by one of these types of Tier 4 sponsor:
- a UK recognised body or a body in receipt of public funding as an HEI (higher education institution); or
- an overseas higher education institution and you have been doing a short-term study abroad programme in the UK; or
- an embedded college offering pathway courses (this does not include pre-sessional courses); or
- an independent school
If your Tier 4 sponsor does not meet one of these definitions, you must return to your home country and apply for a Tier 4 visa from there. If you are unsure, or if your Tier 4 visa has now expired, ask your Tier 4 sponsor for advice.
There are currently only two exceptions to the requirement to hold current Tier 4 or Tier 2 status (see the boxes on the right). If you wish to apply under one of these exceptions, we advise that you speak to an immigration adviser before you apply and that you include a letter with your application explaining your situation.
Before 6 April 2017 people with some other types of current visa could apply in the UK but the Immigration Rules no longer allow this.
The final requirement for being able to apply in the UK is that if you have previously been granted immigration
permission to study in the UK, either under Tier 4 or under the student
rules that were in place before Tier 4 was introduced on 31 March 2009,
your CAS must confirm that you are making academic progress in your studies. For
information about this see the Home Office's Tier 4 policy guidance, paragraphs 56-78.