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Certificates of Sponsorship

Certificates of Sponsorship

How certificates of sponsorship are allocated, assigned and tracked, and the errors that most often need correcting after the fact.
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Guide

The Challenges of Obtaining a CoS Allocation

A CoS allocation is the number of Certificates of Sponsorship the Home Office lets you assign to workers, and delays in obtaining or increasing that allocation can hold up hiring and visa extensions.
7 Min Read
September 3, 2026
Guide

Certificate of Sponsorship - A Guide For Employers

A Certificate of Sponsorship (CoS) is an electronic record, not a physical document, that a licensed UK employer assigns to a worker so the worker can apply for a visa.
8 Min Read
September 3, 2026
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