UK CAS Letter for International Students: Complete Guide 2025

What is a CAS Letter?

A CAS (Confirmation of Acceptance for Studies) letter is an official electronic document issued by a UK university or educational institution to confirm that you have been offered a place on a course. It’s a mandatory requirement for your UK Student Visa application (formerly known as the Tier 4 Visa).

Key Points About the CAS Letter

Here are the key points you need to know about the CAS Letter, including its purpose, when it’s issued, what details it contains, and how it supports your visa.

1. Purpose of the CAS Letter

• Confirms that the university is officially sponsoring your UK visa application.
• Includes a unique CAS reference number required for your visa submission.

2. When is it Issued?

• After accepting your unconditional offer.
• Once all required conditions (like paying the deposit or submitting documents) are fulfilled.
• Typically issued 3–6 months before the course start date.

3. What Information Does a CAS Letter Include?

• Your personal information (e.g., name, date of birth, passport number).
• Course details: name, level, start and end date.
• Tuition fee details and payments already made.
• The unique CAS number and the sponsor license number of your institution.

How to Get a Confirmation of Acceptance for Studies (CAS) Letter?

To obtain a CAS Letter, you must first secure an unconditional offer from a UK university and fulfill all academic, financial, and documentation requirements.

To receive your CAS letter, follow these steps:

1. Accept an unconditional offer from a UK university or college.
2. Fulfill all admission requirements, such as:
   • Academic qualifications
   • English proficiency
   • Financial documents
3. Pay any required deposit (if applicable).
4. The university will send you the CAS via email or upload it to your student application portal.

Documents Required for Receiving a CAS Letter

To receive a CAS Letter from a UK university, international students must submit specific documents that verify their academic eligibility, identity, and financial readiness.

Before your CAS letter is issued, you’ll typically need to submit:

• Academic transcripts and certificates
• Proof of English proficiency (IELTS, TOEFL, etc.)
• Valid passport copy
• Financial documents (showing ability to cover tuition + living costs)
• Deposit payment receipt (if required)

Using the CAS Letter for Your UK Student Visa Application

Here’s how to use your CAS Letter effectively when applying for a UK Student Visa, including where to enter the CAS number and what checks to complete.

Once you have your CAS letter:

• Enter your CAS number in the Student Visa application form.
• The UK Home Office uses it to verify your sponsorship, course details, and eligibility.

Important Notes:

• Check all personal and course information on your CAS for accuracy.
• Do not apply for your visa before receiving the CAS.
• CAS letters are valid for 6 months, but can be used only once.

Pro Tips for a Smooth CAS Process

Here are some expert tips to ensure a smooth CAS process. Always double-check your CAS details, meet university requirements on time, and keep your financial documents UKVI-compliant. To avoid errors or delays, it’s wise to work with a trusted educational consultant in Pakistan who can guide you through admission steps, document preparation, and communication with the university, ensuring you receive your CAS letter without hassle.

• Double-check spellings of your name and passport number in the CAS letter.
• Ensure your financial documents meet UKVI requirements.
• Apply early to avoid delays, especially during peak seasons.
• Reach out to your university’s international admissions office for help or clarification.

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