UK Student Visa 2026: Pre-CAS to Visa—Complete Guide for Indian Students

What Is a CAS and Why Do You Need It?

A CAS (Confirmation of Acceptance for Studies) is an official letter from a UK university confirming that you have been accepted and are eligible to study there. It is the single most important document for your UK student visa application—without a CAS, your visa will be rejected.

The CAS is not a visa itself; it's proof that the university stands behind your admission and that you meet their academic and English-language requirements. UK immigration uses the CAS to verify you have a genuine reason to study in the UK and that your university has thoroughly vetted you.

You cannot apply for a UK student visa until you have a CAS in hand. The CAS is typically issued only after you have accepted an offer of admission from a UK university and met all pre-arrival conditions (English test scores, payment deposit, etc.).

Pre-CAS Requirements: What Universities Ask Before Issuing CAS

Before a UK university will issue a CAS, they require you to complete several steps. Here's what you need to submit:

1. Receive and accept your offer of admission (conditional or unconditional). Conditional offers require you to meet certain criteria.
2. If conditional, submit proof that you've met all conditions: IELTS test scores, degree certificates, transcripts. Upload to the university portal.
3. Make a deposit payment (often GBP 1,000-5,000) to secure your place. This is refunded or applied to your tuition fees.
4. Provide proof of funds: Show you have enough money to cover tuition and living expenses for the first year.
5. Submit your completed visa application form if required by your university.
6. Review the CAS carefully for accuracy (your name, passport number, course dates, fees, etc.). Correct any errors before using it.
7. Download and save the CAS reference number. You will use this when applying for your student visa at UKVI.

Financial Maintenance Funds: How Much You Need to Show

The UK requires you to prove you have sufficient funds to cover tuition and living expenses. The amount depends on your location and course duration.

Proof of Funds: How to Demonstrate You Have the Money

UK immigration and universities accept several ways to prove you have sufficient funds:

• Bank statement: Most common. Show your parents' bank statement covering the last 28 days with the required balance.
• Sponsor's letter and bank statement: If your parents are sponsoring you, provide their bank statement plus a notarized letter confirming support.
• Education loan letter: If you have secured an education loan, provide the loan approval letter as proof of funds.
• Certificate from a financial advisor: A letter from them confirming you have the required funds is acceptable.
• UK bank account statement: If you have already opened a UK bank account and have funds there, this is strong proof.

Step-by-Step: From Acceptance to CAS Issuance

Here is the exact timeline to follow:

1. Month 1: Receive your offer from the UK university. Accept it if unconditional, or accept conditionally if you need to submit test scores.
2. Month 1-2: If conditional, gather and submit required documents (IELTS scores, transcripts, degree certificate).
3. Month 2: University confirms all conditions are met. You will receive an unconditional offer or notice to proceed to CAS.
4. Month 2-3: Pay your deposit (usually GBP 2,000-5,000). University will provide bank details.
5. Month 3: Prepare proof of funds document. Obtain a bank statement from your parents' bank showing the required amount.
6. Month 3: Contact your university's international admissions office and formally request your CAS.
7. Month 3-4: University reviews your proof of funds. If approved, they generate your CAS within 3-7 days.
8. Month 4: Receive your CAS via email. Download it immediately and verify all details.
9. Month 4-5: Use the CAS reference number to apply for your UK student visa at UKVI.

UK Student Visa Application: Documents You Need

Once you have your CAS, here are all the documents needed for the actual visa application:

• CAS reference number: Unique identifier provided by your university.
• Valid passport: Your Indian passport must be valid for at least 6 months beyond your intended stay.
• Proof of funds: Bank statement, loan letter, or sponsor's letter showing sufficient money.
• Original CAS letter: Print the email or download the PDF from the university portal.
• IELTS or equivalent English test score: Minimum score IELTS 5.5 (bachelor's) or 6.5 (master's).
• Tuberculosis (TB) test certificate: Required for all non-UK visa applicants. Get from an approved TB clinic in India.
• Previous education certificates: Bachelor's degree certificate, transcripts, and other qualifications.
• Academic references: Usually 2-3 letters from professors or teachers.
• Statement of Purpose: A brief letter explaining why you want to study this course at this university.
• Financial documents: If required, your parents' income proof (ITR, salary slips) or employer's letter.

UK Student Visa Timeline: From Application to Approval

Here is what to expect for visa processing:

• Standard processing (priority): 3 weeks. You get a decision within 21 days of submission.
• Priority processing: 2 weeks. Additional fee of 154 GBP (approximately 13200 INR).
• Super priority: 1-2 working days. Additional fee of 299 GBP (approximately 25700 INR).
• Biometrics appointment: After submitting your online application, you will visit a UK Visa Application Centre (UVAC) in India.
• Visa validity: Once approved, your visa is valid from your course start date until 4 months after your course end date.
• Visa cost: Approximately 719 GBP (2026 estimate). Add healthcare surcharge of approximately 1035 GBP per year.

Common Mistakes That Delay or Reject Your CAS

Avoid these errors to keep your CAS on track:

• Submitting proof of funds after the deposit: Universities may lose track. Submit immediately after paying deposit.
• Using a bank statement older than 28 days: UK requires recent statements. Get a fresh one if needed.
• Mismatched name on documents: If your passport says John Kumar Sharma but bank statement says J. Kumar Sharma, this may delay CAS.
• Not responding to university requests: Respond within 48 hours or your CAS issuance will be delayed.
• Applying for visa before CAS arrives: UKVI will reject your application if your CAS reference does not exist in their system yet.
• Choosing a university without Tier 4 sponsor license: Some institutions are NOT licensed by UK immigration to issue CAS.
• Missing TB test: A UK student visa application is incomplete without a TB certificate.

CAS Validity and Visa Application Window

Your CAS has an expiration date. Here is what you need to know:

• CAS validity period: 6 months from issuance. If you do not apply for a visa within 6 months, your CAS expires.
• Earliest visa application: You can apply for a visa up to 3 months before your course start date.
• Latest visa application: You must apply before your CAS expires (6 months from issue).
• Advice: Apply for your visa immediately after receiving your CAS, ideally within 1-2 weeks.
• CAS amendment: If your course dates or tuition fees change, your university can issue an amended CAS.

Bringing Family and Dependents: Tier 4 Dependent Visas

If you are bringing a spouse or children, they need their own visas:

• Tier 4 Dependent Visa: Your spouse and dependent children (under 18) can join you if you meet financial requirements.
• Additional funds needed: For a spouse, you must show an extra GBP 3,100-3,500 per year. For each child, add GBP 1,500-2,000 per year.
• Dependent CAS: Universities typically do NOT issue CAS for dependents.
• Dependent visa cost: Approximately 284 GBP per dependent (cheaper than student visa).
• Dependent visas are tied to your student visa: If your student visa is cancelled, dependent visas are also cancelled.

Post-Arrival: Visa Conditions and How to Stay Compliant

After you arrive in the UK on your student visa, follow these rules:

• Register with the police: If your course is longer than 6 months, you must register at a local police station within 7 days.
• Attend classes: Your visa is conditional on full-time study. Miss too many classes and the university will report you to UKVI.
• Work restrictions: You can work up to 20 hours per week during term time, and full-time during holidays.
• Notify UKVI of changes: If you change university, defer your course, or change accommodation, inform UKVI within 10 days.
• Visa expiry: Your visa expires when your course ends plus 4 months (grace period).
• Graduate visa option: After completing your course, you can apply for a Graduate Visa (2-3 years for bachelor's or master's).