UK CAS Letter 2026: September Visa Timeline, Week by Week

It is 11pm in Karachi and Ayesha is refreshing her inbox for the fifth time today. Her course at Manchester starts on 21 September. Her deposit is paid. Her friends are posting CAS screenshots in the group chat. Hers has not arrived. Is she late? Is something wrong? Should she panic?

Short answer: almost certainly not. July is peak season for the UK CAS letter 2026, and universities issue them in batches through July and August. What actually causes problems is not a CAS that arrives in late July — it is students doing the next steps in the wrong order. This guide lays out the full sequence, week by week, with realistic wait times, so you know exactly where you stand.

The Full Sequence: Deposit to Visa Decision

Every UK bound student follows the same chain. Here it is with realistic durations for the 2026 peak season:

1. Pay your deposit and meet offer conditions — instant to 1 week for the university to confirm.
2. Request and receive your CAS — typically 3 days to 3 weeks after conditions are met, depending on the university's batch schedule.
3. Book and take your TB test — 1 to 2 weeks including appointment wait; the certificate is valid for 6 months.
4. Complete the online visa application and pay the fees — the application fee is GBP 558 (effective 8 April 2026) and the Immigration Health Surcharge (IHS) is around GBP 776 per year of your visa. For a 1 year Masters that usually means roughly GBP 1,164 of IHS (16 months of leave), so budget approximately GBP 1,700+ total ≈ PKR 646,000 / BDT 278,000 / USD 2,300.
5. Book and attend your biometrics appointment at a VFS centre — 3 days to 2 weeks for a slot in peak season.
6. Wait for the decision — the standard service is 3 weeks for applications made outside the UK, but peak July–August volumes can stretch this. Priority services, where available in Pakistan and Bangladesh, cut this to around 5 working days for an extra fee.

Total realistic time from CAS in hand to visa in passport: 4 to 8 weeks. That is why a CAS arriving in mid July is comfortably on time for a 21 September start — and why one arriving in late August gets tight.

The Two 6 Month Rules That Control Your Dates

Two UKVI rules bracket your timing, and students mix them up constantly:

• You must apply within 6 months of your CAS being issued. A CAS is not a document you can sit on indefinitely — universities also set their own internal CAS request deadlines, so respond to CAS related emails quickly. Our breakdown of the UK CAS deadline wall explains why mid August is the practical cutoff for many universities.
• You cannot apply earlier than 6 months before your course start date. For a 21 September 2026 start, applications opened on 21 March 2026 — so nobody reading this in July is "too early".

Always check the current rules on the official gov.uk Student visa page before applying — fees and processing standards change without much notice.

Your Week by Week Plan From Today

Week 1 (now): If your CAS has not arrived, email your university's admissions or CAS team once, politely, confirming all conditions are met. Book your TB test appointment in parallel — do not wait for the CAS. In Pakistan, tests are done at IOM approved centres in Islamabad, Karachi, Lahore and Mirpur; in Bangladesh, at the IOM centre in Dhaka. Verify the current approved list on gov.uk, and book early — smaller cities have few slots in peak season.

Week 2: TB test done, certificate in hand. Gather your financial evidence: funds held for 28 consecutive days, ending no more than 31 days before your application date. This is the single most common refusal trigger, so get the dates right.

Week 3 (CAS arrives): Check every field on the CAS — name spelling, course title, tuition paid amount. Errors must be fixed by the university before you apply. Then complete the online application, pay the GBP 558 fee and the IHS, and submit.

Week 4: Book biometrics at VFS the moment the system allows — after submission, never before. Attend with your passport and checklist.

Weeks 5–7: Decision window. Standard service 3 weeks; consider priority if your course starts within 5 weeks. While you wait, sort accommodation and read our UK Graduate Route 2026 guide so you understand your post-study options before you land.

Your CAS Document Checklist (Screenshot This)

• Valid passport
• CAS reference number (from the CAS statement email)
• TB test certificate (IOM approved centre, under 6 months old)
• 28 day financial evidence (bank statements or official loan/sponsor letter)
• Academic certificates listed on your CAS
• English test result if listed on your CAS (see our IELTS band requirements guide)
• ATAS certificate — only if your course requires it (your offer letter says so)
• IHS payment confirmation and visa fee receipt

Common Mistakes Pakistani Students Make in CAS Season

1. Panicking in July because friends got their CAS first. Universities issue in batches. Late July is normal; a single polite follow-up is enough.
2. Booking biometrics before submitting the application. The appointment gets orphaned and the fee wasted. Submit first, book second.
3. Paying the IHS with mismatched details. The name and passport number must exactly match your application — a typo here delays or derails your file.
4. Leaving the TB test too late. Students in cities without an IOM centre must travel; peak season slots vanish. Book it before your CAS arrives.
5. Breaking the 28 day money rule. Moving funds between accounts mid window restarts the clock. Park the money and leave it alone.
6. Sitting on the CAS. The 6 month CAS validity and the university's own deadlines both keep ticking. Apply within days of receiving it, not weeks.

Frequently Asked Questions About the UK CAS Letter 2026

My course starts 21 September and my CAS has not arrived. Should I panic?

No. July is peak CAS issuance and universities send them in batches through August. If your conditions are met and your deposit is paid, send one polite follow-up email. A CAS arriving by mid August still leaves enough time with standard processing.

What order do the TB test, IHS and biometrics come in?

TB test first — you can do it before your CAS arrives. IHS is paid inside the online visa application. Biometrics comes last, booked only after you submit the application. Doing these out of order is the most common self-inflicted delay.

How long does the UK student visa take after biometrics in 2026?

The standard service is 3 weeks for applications made outside the UK, though peak season can stretch it. Priority service, where available, delivers a decision in around 5 working days for an additional fee.

How much does the UK student visa cost in total in 2026?

The application fee is GBP 558 plus the IHS at about GBP 776 per year of your visa. A typical 1 year Masters pays roughly GBP 1,700+ combined ≈ PKR 646,000 / BDT 278,000 / USD 2,300, before the TB test and priority service costs.

How long is my CAS valid?

UKVI expects you to use a CAS within 6 months of issue, and you cannot apply more than 6 months before your course start date. Universities also set internal CAS request deadlines, so treat your CAS as urgent the day it arrives.

You Are Closer Than You Think

CAS season feels like a waiting game because it is one — but it is a waiting game with a fixed sequence and known durations. Book the TB test now, keep the money untouched for 28 days, and apply the week your CAS lands. Do those three things and a 21 September start is not just possible, it is comfortable. Your seat in that lecture hall is closer than the group chat anxiety makes it feel.

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