What is CAS Letter (Confirmation of Acceptance for Studies)?

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Srishti Chatterjee
Study Abroad Expert
Updated on Nov 10, 2021 17:09 IST

What is CAS Letter (Confirmation of Acceptance for Studies)?

Confirmation of Acceptance for Studies (CAS) is a very important document you need to know if you are planning to study in the UK.

You must have a CAS before applying for the UK Student Visa (Tier 4 General). CAS is an electronic document issued to you by the college or university that you have chosen to study at. Your CAS will be valid for student visa application for six months from the date of issue.

Your institution will also send a unique reference number that will match up with your CAS. You must mention this reference number on the Tier 4 visa application form. The visa official processing your application will check this number and corroborating document to confirm that you have an unconditional offer from the university.

Your college will also send along the information they have used to generate your CAS. This is called as a 'CAS statement' and it is sent to you by email. The CAS statement is not required for your Tier 4 visa application but it gives all the information about your course and sponsor and some information about money that you need to complete your Tier 4 visa application form.

In case there are any inconsistencies between the information used by the university to create the CAS and the information you provide on your application form, then your visa application could get refused.

The CAS statement tells you the following information:

  • 14 digit reference number for the CAS
  • Sponsor License Number (SLN) of the university where you intend to study
  • Start and end dates of your course
  • Title of the course
  • Tuition fees for the first year or the entire course.
  • Any tuition fees that you have already paid to the university
  • Any accommodation fees that you have already paid
  • Assessment of your English language ability i.e. IELTS or TOEFL scores

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The important thing to note is that you may obtain CAS from several different universities. However, before you apply for your Tier 4 student visa you must decide which university you intend to study and use the CAS from that university in your application. Once you do that, any other CAS you have been issued will become 'obsolete'. This means that you will not be able to use them for the visa application. When your student visa has been granted and you enter the UK, you must study at the university/college that issued your CAS.

Read more articles related to getting admission to UK universities:

Study in UK: Documents required for applications

Study in UK: Student account of application and admission process

Steps to UK college admissions: Enrolment Timeline to plan your applications

Difference between Undergraduate application process to US and UK universities

About the Author
Srishti Chatterjee
Study Abroad Expert

Srishti has spent six years in the Education industry helping study abroad aspirants draft their application documents for their dream universities. Experienced in creating impressive SOP, LOR, and Essays, she knows... Read Full Bio




Jaspreet Sidhu

2 months ago

I applied in Teesside University. I clear my interview and pay my all tution fee and send all cas documents financial,medical,tt receipt. I have got unconditional offer 11 march 2022 but still I have not get any revert for final CAS Letter from university side .
What I can do?

Reply to Jaspreet Sidhu


Devasani arun

3 months ago

What are Requirements for cas letter

Reply to Devasani arun


Devasani arun

3 months ago

Hey I know the that but I need now what are the documents are required I need know?


Srishti ChatterjeeStudy Abroad Expert

3 months ago

CAS letter is the confirmation of your seat at the university. So when you receive the admission letter, fulfil and submit all documents to the university and pay the required tuition, then the university will send you a CAS letter.


Kiran kaur

a year ago

I applied student visa in uk with priority base .but there has already a 6th day. what does it mean that my visa is in process.

Reply to Kiran kaur


Sindhu Macha

2 years ago

I did not get CAS letter how day will take
University of East london

Reply to Sindhu Macha

2 years ago

I got the cas letter, and I already applied for priority visa.I have 23 backlogs. And I submit all the documents which are mentioned in the cas letter . Didn’t submit backlog certificate and the job documents and diploma after job. Please let me know did it impact on the visa?

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