Obtaining your CAS


A Confirmation of Acceptance for Studies (CAS) is a unique reference number given to you by your immigration sponsor (usually your educational institution) to study in the UK. A CAS number is required for the Tier 4 visa process.

CAS numbers are only valid for one visa application and expire six months after they are issued.

If your visa application is refused, you will need a new CAS number.

 students with laptop

New students

As an applicant, you will receive the CAS automatically by email, a maximum of 4 months prior to the course start date, once you have:

  • an unconditional offer which you have firmly accepted, and
  • if you have paid any necessary deposits for your course. 

Students who meet the conditions of their offer or pay the deposit close to the start of term, or who receive a visa refusal and need to re-apply for their visa with a fresh CAS, need to be aware of the University's latest date to issue a CAS.  This is the three working days before the course start date.

Receiving your CAS is part of the process of preparing for your visa application.  To understand your CAS information better and to prepare fully for the visa process, please refer to our 7 Steps quick guide on applying for your Tier 4 visa.

We also have detailed guidance on the documents required for the visa application and the forms you need to complete on our section on how to apply for your Tier 4 visa.

Time limits on studying on a Tier 4 visa

There are time limits, set by UK Visas and Immigration, on the length of time that students can study at certain levels in the UK on a Tier 4 visa.

As a result of this, the CAS issuing process for both new and current students will require you to answer a question about the extent and nature of your studies to date in the UK.  If you think that your proposed studies will take you over the relevant time limit and you answer "yes" to the time limit question on the CAS checking document, we will send you a questionnaire to get more details before we are able to issue your CAS number.

If you have never studied in the UK before, you can answer "no" to the time limit question on the CAS checking document.

Current students

If you are continuing on your current course of study but you need extra time to do so, you will need to request a CAS via the Online Store.

Print and verify your CAS checking document

When the CAS has been prepared, you will receive an email asking you to verify the details of your CAS. Check all the information included is correct.

• If the CAS is correct, print the document before you click the ‘verify’ button.

• If the CAS is incorrect, follow the instructions to report any error

Activate the CAS and receive your CAS number

The Visa and Immigration Team is required to review the financial evidence of all current students (including low-risk nationals) who are making visa applications, to ensure your visa application is likely to succeed.  We need to do this before assigning your CAS number.

If you are applying for your visa through the Visa and Immigration Team, bring the printed CAS checking document with a draft copy of your visa application form and other documents to submit to a visa adviser by appointment.  You CAS number can then be activated.

If you are applying from overseas or are making a premium application, in-person at a premium service centre in the UK, or if you are applying independantly by post in the UK, please email a copy of your financial evidence to immigration-support@nottingham.ac.uk.
If your financial evidence is suitable, your CAS number will be activated and emailed to you. Please note that although scanned financial evidence is acceptable for our checking procedures, you must provide original financial evidence for your visa application.

Applying for the Doctorate Extension Scheme?

Please note that a separate CAS request process should be followed by students who are applying to work in the UK under the Doctorate Extension Scheme.  Full details are given in our Working in the UK guidance notes.


International Office

C Floor, YANG Fujia Building
Jubilee Campus, Wollaton Road
Nottingham, NG8 1BB, UK

t: +44 (0) 115 951 5247
f: +44 (0) 115 951 5155
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