When is the right time for me to apply for a UK student visa extension?
If you are starting a new course in the UK, you need a fresh CAS and should apply no earlier than three months before the course starts and within six months of the CAS. Apply before your current visa expires, and expect a decision in around eight weeks.
If your current course simply needs more time, you must apply online yourself, before your current visa expires. If you are starting a new course, you need a new CAS letter and a fresh student visa application. Apply before your present visa runs out.
Timeline for a New Course
| Step | Timing |
|---|---|
| Apply for the new visa | No earlier than 3 months before the new course starts |
| Apply after getting the new CAS | Within 6 months of the CAS |
| Apply relative to current visa | Before your current student visa expires |
| New course start date | Within 28 days of your present visa expiring |
| Decision time | Around 8 weeks |
While You Wait
You may stay in the UK until you receive a decision, as long as you applied before your current visa expired. Timelines can change, so check the official page for the latest guidance.
My Advice
Work backwards from your new course start date and add buffer time for the CAS and any delays. Do not let your current visa expire before you file, because that is where students most often run into trouble.
Not sure which documents your UK visa needs?
Interview prep, funds proof and timelines. Get a checklist for your case.
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