Every year, thousands of Sri Lankan students navigate the UK's Student Route visa — a process with several sequential, non-negotiable steps: a Secure English Language Test, a university-issued CAS, a mandatory TB test, strict financial evidence rules, and biometrics at VFS Global Colombo. Missing or mistiming any one of these steps is one of the most common reasons applications are delayed. This guide walks through the entire process in order, specifically for Sri Lankan nationals.
Overview: The Full Process in Order
| Step | Action | When |
|---|---|---|
| 1 | Receive an unconditional offer from a UK university | Before anything else |
| 2 | Sit IELTS UKVI Academic | Before or shortly after your offer |
| 3 | Complete the TB test | Shortly before applying (certificate valid 6 months) |
| 4 | Receive your CAS | 6–8 weeks before your course start date |
| 5 | Gather financial evidence (28-day rule) | Before submitting your online application |
| 6 | Submit the online visa application and pay fees | After CAS is issued |
| 7 | Book and attend biometrics at VFS Global Colombo | Shortly after submitting online |
| 8 | Receive your decision | Typically 3–8 weeks after biometrics |
Step 1: IELTS UKVI Academic Test
Sit IELTS UKVI Academic and obtain your Test Report Form (TRF). Sri Lanka is not on the UK's majority English-speaking country list, so Sri Lankan applicants need a Secure English Language Test (SELT) for the visa — standard IELTS Academic is not accepted for this purpose, even though the test content and scoring are identical.
Where to take IELTS UKVI Academic in Sri Lanka:
- British Council Colombo (Alfred House Gardens, Colombo 3)
- IDP Education Lanka, Colombo
- Book at britishcouncil.lk or ielts.idp.com — select "IELTS for UKVI" when booking, not standard IELTS Academic
Taking IELTS UKVI Academic from the start means one test satisfies both your university's admission requirement and your visa's SELT requirement.
Step 2: Receive Your CAS from the University
After accepting a formal offer from a UK university, the university will issue a CAS (Confirmation of Acceptance for Studies) — a 14-digit reference number. You cannot apply for the visa without it. Universities typically issue the CAS 6–8 weeks before the course start date.
Step 3: TB (Tuberculosis) Test
Sri Lanka is on the UK's list of countries whose nationals must complete a TB test for any UK visa application of 6 months or longer — which covers virtually all student visas. This must be done at a Home Office-approved clinic.
| Detail | Information |
|---|---|
| Who must do it | Sri Lankan citizens applying for a UK visa of 6+ months |
| Approved clinic in Colombo | The IOM (International Organization for Migration) Migration Health Assessment Centre in Colombo is the main approved provider — check gov.uk/tb-test-visa for the current, officially approved list before booking |
| Procedure | Chest X-ray and radiologist review |
| Processing | Typically a few business days |
| Certificate validity | 6 months from the date of the test |
Timing matters: Book your TB test close to when you plan to submit your visa application, since the certificate must still be valid (within its 6-month window) at the time of application. The TB certificate is a required supporting document — you cannot submit a complete application without it.
Step 4: Complete the Online Visa Application
Apply at gov.uk/student-visa:
- Create a UK Visas and Immigration online account
- Complete the visa application form
- Pay the visa application fee and the Immigration Health Surcharge (IHS)
- Book your VFS Global appointment
| Fee (2026) | Amount |
|---|---|
| Student visa application fee | £524 (increasing to £558 for applications made from 8 April 2026 — check the current fee on gov.uk before paying, as this is reviewed periodically) |
Step 5: IHS (Immigration Health Surcharge)
The IHS gives you access to NHS services in the UK. It is paid upfront as part of the visa application, calculated for the full length of your visa.
| Duration | IHS Cost |
|---|---|
| Per year | £776 |
| One-year master's | Roughly £776–£1,000+ depending on exact visa length |
| Three-year PhD | Roughly £2,300–£2,800+ depending on exact visa length |
Always confirm the current per-year IHS rate on gov.uk before paying, as it is reviewed periodically.
Step 6: Financial Evidence (28-Day Rule)
You must show you can cover your first-year tuition fee (as stated on the CAS) plus living costs:
| Location | Monthly Requirement | Maximum Months Required | Total |
|---|---|---|---|
| London | £1,529/month | Up to 9 months | £13,761 |
| Outside London | £1,171/month | Up to 9 months | £10,539 |
Funds must be held in your account for a continuous 28 days ending within 31 days of your application. A sudden large deposit does not satisfy this requirement — the 28-day history of the balance matters, so plan this well before submitting your application.
A Chevening, Commonwealth, or Australia Awards-style full scholarship letter (where sponsorship covers your costs) can replace some or all of this financial evidence, depending on the terms of the award — check the specific guidance for your sponsor category.
Step 7: Biometrics at VFS Global Colombo
Book a biometrics appointment at the VFS Global UK Visa Application Centre in Colombo.
Documents to bring:
| Document | Notes |
|---|---|
| Passport (original) | Must remain valid; given to VFS and returned with your visa |
| IELTS UKVI TRF | Original — photocopies not accepted |
| CAS reference | 14-digit number from your university |
| TB certificate | Original, from an approved clinic |
| Financial evidence | Bank statements or scholarship/sponsorship letter |
| IHS payment receipt | From your online application |
| Passport photographs | Per VFS specification |
Processing time: typically 3–8 weeks from your biometrics appointment, though this can vary by season — applying as early as your CAS allows is the safest approach.
Common Reasons Applications Are Delayed or Refused
| Issue | How to Avoid It |
|---|---|
| Financial evidence doesn't cover the full continuous 28-day period | Check your bank statement dates carefully before applying; don't apply the day after a large deposit |
| TB certificate expired before the application was submitted | Book the TB test close to your intended application date, not months in advance |
| CAS details don't match the visa application (course dates, fees, sponsor) | Double-check every CAS field against your application form before submitting |
| IELTS UKVI TRF details don't match your passport exactly | Confirm your name spelling matches your passport exactly when booking IELTS |
| Insufficient evidence of funds source for large deposits | Where a large deposit appears in your statement, be ready to explain its source if requested |
Graduate Route — Post-Study Work in the UK
After completing your UK degree:
| Qualification Completed | Graduate Route Duration |
|---|---|
| Bachelor's degree | 2 years |
| Master's degree | 2 years |
| PhD | 3 years |
The Graduate Route allows you to live and work in the UK for 2–3 years in any role, at any level, with no job offer needed at the point of switching. After the Graduate Route, many Sri Lankan graduates transition to the Skilled Worker visa if they secure a sponsored role.
Practical Tips for Sri Lankan Applicants
- Book your TB test appointment early — the Colombo clinic can have a waiting list, especially during peak application season (July–September)
- Keep every document as an original where required — VFS Global will not accept photocopies for key documents like your IELTS TRF and TB certificate
- Track your bank balance daily in the run-up to applying, so you know exactly when your 28-day continuous period will be satisfied
- Apply as soon as your CAS is issued — you can generally apply up to 6 months before your course start date, and earlier applications give you more buffer if something needs correcting
Prepare for IELTS UKVI Academic with Gabble — the test that satisfies both your UK university's admission requirement and your UK Student visa SELT requirement in one sitting. AI-powered Speaking and Writing practice with instant band scores helps Sri Lankan students reach the score their university and visa both require.