Page 1: About this form

Information supplied will be used by the College in accordance with the General Data Protection Regulation. Please read our privacy policy to find out how we store and use your data. 

This form is for current PhD students who wish to extend their Tier 4 / Student visa to Student: Doctorate Extension Scheme (DES) in the UK. It is your responsibility to complete this form with the correct information. 

You are advised to complete this form after attending your viva.

If you submit incorrect information to Birkbeck, this could result in your visa application being refused by the Home Office. 

You will be required to provide financial documents before a new CAS can be issued. Further information on Student visa financial requirements can be found at 

Please note, it will take at least 5 working days to process your request for CAS form upon receipt of all required information. You are therefore advised to submit your request at least 8 weeks before you intend to make your visa application.  

Please contact us with any queries you have regarding completing this form.


International Student Administration
Registry Services