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ARTICLE · 07 AUGUST 2026

Certificate Of Sponsorship Administration: A Complete Employer Guide

Discover essential strategies to prevent expensive errors when applying for or maintaining a UK Sponsor Licence. Learn from corporate immigration specialists about common pitfalls that can jeopardize your ability to hire international talent and how to navigate the complex compliance requirements successfully.

United KingdomImmigration

Certificate of Sponsorship administration at a glance

A Certificate of Sponsorship (CoS) is an electronic record created through the Sponsor Management System. It connects a sponsored worker, a genuine role and the sponsor’s immigration responsibilities. It is not a paper certificate, and assigning one is not a substitute for checking that the wider visa requirements are met.

  • A Defined CoS is generally used for a Skilled Worker applying from outside the UK and must be requested before it is assigned.

  • An Undefined CoS is generally used for an eligible applicant applying from inside the UK, subject to the sponsor’s allocation.

  • The role, occupation code, salary, hours and work location must describe the real job being offered.

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The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

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