This page explains what fee you must pay for your student visa.
Once your application is received, the fee is charged and cannot be refunded.
If you are applying from outside the United Kingdom and provide more than one application, you will be charged the same fee for each vaild application.
The student visa application fee depends on where you apply from:
Inside the United Kingdom by post - £357
Inside the United Kingdom at a public enquiry office - £565
Outside the United Kingdom - £145
You must provide payment for your fee or your application will be invalid and will not be considered.