You can extend a Student visa in the UK before it expires if you meet the Student route requirements, have a valid Confirmation of Acceptance for Studies, usually called a CAS, and submit the online application before your current permission ends. If you are starting a new course, the course must normally begin no more than 28 days after your current visa expires, so timing matters just as much as the documents.
Many students extend because their course has been delayed, they need more time for resits or research, they are moving to a higher level course, or they have added a placement year. The process is manageable, but it is not something to leave until the final week unless you enjoy unnecessary stress with your coffee.
The key is to work backwards from your visa expiry date. You need your university to issue a CAS, you need to check whether you meet the academic progression and financial rules, and you need to complete the UKVI application before the deadline.
Immigration 4U supports students and families with UK immigration applications, including Student visa extensions, document preparation and guidance where circumstances are not straightforward.
Can You Extend a Student Visa From Inside the UK?
You may be able to extend your Student visa from inside the UK if your current immigration permission allows you to apply under the Student route. You must be in the UK with valid permission when you apply, meet the switching rules that apply to your current route, and have an unconditional offer and a CAS from your university or education provider before you submit the application.
You must also meet the Student route requirements at the time of application. These can include academic progression, course level, financial evidence and suitability checks. If you are unsure whether your planned study fits the route, professional UK study visa advice can help you understand the requirements before you commit to an application.
The official rules and procedure are set out in the GOV.UK Student visa extension guidance, which should always be checked before submitting because fees, evidence rules and application steps can change.
When Should You Apply Before Your Student Visa Expires?
You must apply before your current Student visa expires. Completing a draft form is not enough. In practical terms, you need to submit the application online, pay the relevant fees and follow the identity verification instructions before your permission ends.
You can usually apply up to three months before the new course starts, provided you meet the relevant requirements. However, your university may have its own CAS request deadline, and that internal deadline can be earlier than the Home Office deadline. Universities can be especially busy around exam boards, enrolment periods and holiday breaks, so if you are waiting for confirmation, keep chasing politely and keep a record of your messages. If your course has changed, your studies have been extended, or you need more time for research, contact your university's international student team as soon as possible.
For example, if your current visa expires on 1 December and you are starting a new course, the new course must normally begin by 29 December. Your visa application must still be submitted before 1 December. If the new course begins later than that, you may not be able to extend from inside the UK under the Student route.
The 28 Day Rule Explained Simply
The 28 day rule is one of the most important timing rules for Student visa extensions. Where you are moving to a new course, the start date on your CAS must normally be no more than 28 days after your current permission expires.
This rule is not about when UKVI makes the decision. It is about the gap between your current visa expiry date and the start date of the new course. If the gap is too long, the application may not fit the rules for applying from inside the UK, even if the course itself is genuine and the university is licensed.
If you are extending for the same course, resits, a placement year or postgraduate research, the position may be different because your sponsor will need to assess why additional permission is required. Your CAS should accurately explain the course details, dates and reason for the extension.
Which Student Visa Extension Situations Are Common?
Student visa extensions are not all the same. The reason you need more permission affects the CAS, the academic progression assessment and the evidence you may need.
If you are continuing the same course because your end date has moved, your sponsor will normally need to confirm the revised course dates. If you are progressing from an undergraduate degree to a master's degree, the new course will usually need to show academic progression. If you are repeating modules or resitting exams, an exception may apply, but your university must be satisfied that it can sponsor you.
Course transfers and changes of institution need particular care. You should not assume that a CAS from one sponsor can be used for a different institution or a substantially different course. Placement years also need to be properly reflected in the course structure, and postgraduate research extensions often require evidence that extra time is academically necessary.
Documents You May Need for a Student Visa Extension
Your CAS is the starting point because it tells UKVI what course you are studying, who is sponsoring you and what information has already been assessed. You should check every detail on the CAS before applying, including your name, passport details, course title, course dates and fees paid.
- Current passport and any identity documents requested by UKVI
- CAS reference number from your licensed student sponsor
- Evidence of current immigration status, including UKVI account or eVisa details where applicable
- Financial evidence if required, such as bank statements, official sponsorship letters or student loan documents
- Academic evidence or completion evidence if your sponsor or UKVI requires it
- ATAS certificate if your course requires Academic Technology Approval Scheme clearance
- Certified translations for documents not in English or Welsh
- Dependant documents if eligible family members are applying with you
Not every student will need every document in that list. Some evidence may be covered by the CAS, and some students who have lived in the UK with valid permission for at least 12 months may benefit from financial evidence concessions, subject to the current rules.
Financial Requirements and Bank Statements
Financial evidence is one of the most common areas where Student visa applications go wrong. If you need to show funds, you may need to prove that you have enough money for outstanding tuition fees and living costs. The exact amount depends on your circumstances, your course and what is recorded on your CAS.
Where bank statements are required, funds usually need to be held for a set period before the application, commonly 28 consecutive days, and the document date must usually be recent enough for UKVI to accept it. It is completely normal to feel unsure about which documents UKVI will expect, especially if your fees have changed or your parents are helping with funds. The rules can be technical, so check the latest guidance before relying on a statement.
If you are sponsored by a government, international scholarship agency, university or other approved body, you may need a sponsorship letter instead of personal bank statements. If you are using a student loan, the loan document must meet UKVI requirements. A small wording issue can cause big problems, so review financial documents carefully.
How Much Does a Student Visa Extension Cost?
The application fee for extending or switching to a Student visa from inside the UK can change, so it is safest to check the current amount on the UKVI application system before you pay. This is the figure that matters for your application.
You will also usually need to pay the Immigration Health Surcharge. The total depends on the length of permission granted and the way the surcharge is calculated. Optional paid services, such as faster decisions or document checking appointments where available, may cost extra.
Do not rely on an old screenshot, social media post or friend's recent application for fee information. UK immigration charges can change without much practical warning, and the amount payable is the amount shown when you apply.
How to Apply Online Before Your Visa Expires
The Student visa extension application is made online. Before you begin, make sure your CAS has been issued, your documents are ready and you understand your deadline. Starting the form early is sensible, but it is the actual submission that matters.
You will complete the online form, pay the application fee and Immigration Health Surcharge, then prove your identity. Some applicants can use the UK Immigration ID Check app, while others may be asked to attend a biometric appointment. UKVI will tell you which route applies.
After submitting, save your confirmation, payment receipts and application reference. Your university may ask for evidence that you applied before your visa expired, especially if your existing permission ends while you are waiting for a decision.
What Happens After You Apply on Time?
If you submit a valid application before your current visa expires, your existing permission may continue while UKVI decides the application. This is often referred to as Section 3C leave. In plain English, it can protect your lawful status while the decision is pending, provided the application was made in time and remains valid.
However, this does not mean you can ignore your conditions. Your work and study conditions usually continue as they were, but you should check your current visa restrictions and your university's guidance before changing work hours, starting a different course or assuming anything has been approved.
You should also avoid travelling outside the UK or the Common Travel Area while an application made from inside the UK is pending. Travel can cause the application to be treated as withdrawn, which may create serious immigration consequences.
How Long Does a Student Visa Extension Take?
GOV.UK commonly lists the standard processing time for a Student visa application made from inside the UK as around eight weeks, but this is not a guarantee. Some applications take longer because of document checks, verification with banks or sponsors, interviews, missing information or complex immigration history.
While waiting, monitor your email, UKVI account and any messages from your university. Respond quickly if UKVI asks for further information. If your visa expires after you have made a valid application on time, do not panic, but do keep your submission evidence safe.
Common Mistakes to Avoid
The biggest mistake is applying after the visa expiry date. Even being one day late can create serious problems, including overstaying and complications for future immigration applications.
Other common mistakes include waiting too long to request a CAS, assuming that an academic extension automatically extends immigration permission, ignoring the 28 day rule, submitting financial evidence that does not meet the required format, or travelling while the application is pending.
If your application has been refused before, or you are worried about the risk of refusal, it is important to understand your options quickly. Immigration 4U provides visa refusal support for people who need guidance after an unsuccessful UK immigration application.
When Another Visa Route May Be Better
Extending your Student visa is not always the only option. Depending on your plans, you may be considering the Graduate route, Skilled Worker route, a family route or another form of UK immigration permission. The right route depends on your study status, future work plans, sponsorship options and personal circumstances.
If you are comparing possible immigration routes, this overview of the main UK visa types can help you understand the broader options before taking advice on your specific case.
What to Do If Your Visa Is About to Expire
If your Student visa is close to expiring, act quickly but carefully. Confirm the exact expiry date, contact your university's immigration or compliance team, ask whether a CAS can be issued, and check whether your course dates fit the extension rules.
Do not submit a rushed application with missing or unreliable evidence unless you understand the risks. At the same time, do not wait passively for a CAS if your deadline is approaching. Keep written records of your communications with the university and seek regulated immigration advice if you are unsure what to do.
Frequently Asked Questions
Can I extend my Student visa after it expires?
You should apply before your current Student visa expires. A late application can create overstaying issues and may affect future UK immigration applications. If your visa has already expired, speak to your university immediately and seek immigration advice urgently. Do not assume there is a grace period or that UKVI will accept a late application.
Do I need a new CAS to extend my Student visa?
Yes, in most cases you need a new CAS from your licensed student sponsor before submitting a Student visa extension application.
Can I travel while my Student visa extension is pending?
You should not travel outside the UK or the Common Travel Area while an application made from inside the UK is pending unless you have taken advice, as travel may withdraw the application.
Do I always need bank statements?
Not always. Some students may be exempt from providing financial evidence, while others must show funds in the required format for the correct period.
Can my dependants extend their visas with me?
Eligible dependants may be able to apply at the same time or before their own permission expires, but dependant eligibility under the Student route is restricted and should be checked carefully.
