U.K. Student Visa (Tier 4) Requirements The U.K. Student Visa , formerly the Tier 4 Student Visa, allows international students to study in the United Kingdom. As of the latest updates, the Tier 4 visa has been replaced by the Student Visa, but the requirements and process remain primarily similar. Here is a comprehensive guide to the requirements for the U.K. Student Visa: 1. Confirmation of Acceptance for Studies (CAS) What is CAS? To apply for a Student Visa, you must have a Confirmation of Acceptance for Studies (CAS) from a licensed Tier 4 sponsor (educational institution). This reference number confirms that you have been offered a place on a course and that the institution has accepted you. How to Obtain CAS Once you are accepted into a U.K. educational institution, they will issue you a CAS statement. This document includes a unique reference number and details...