Certificate of Sponsorship (CoS) Management with Immtell

Yes, if you hold a sponsor licence and are an authorised user of the Sponsorship Management System (SMS), such as an Authorising Officer or Level 1 or 2 User (Level 1 is required to request and assign a Defined CoS). Many businesses choose expert support to reduce risk, particularly for first-time assignments or urgent hires.

Yes. Priority slots are limited and released by the Home Office on working days. We monitor and act quickly to secure a slot and submit your request for a lot.  We can usually obtain a priority slot within a couple of days and can provide this as a standalone service if required. 

Yes. We regularly support clients whose requests have been rejected, often due to unclear job descriptions, weak justifications, or salary errors. We’ll help you rework and resubmit your request, and provide guidance on addressing any Home Office concerns.

Yes. We regularly support both employers and their sponsored workers through the visa application stage once the Certificate of Sponsorship has been assigned. Whether you're applying for a Skilled Worker visa or another sponsored route, we can:

• Guide the applicant through each step of the visa process
• Ensure the application meets Home Office requirements
• Check supporting documents for accuracy and completeness
• Handle the submission and communicate with the Home Office if needed

You can leave it all with us, or we can provide guidance only, it’s entirely up to you. Our goal is to make sure the visa is granted without unnecessary delays or complications.

Yes. Whether you need help with one CoS or ongoing support across multiple roles, we offer flexible CoS management services. You can hand over the admin, and we’ll make sure your CoS assignments are timely, compliant, and stress-free.

Yes. In most Skilled Worker cases, the sponsor must pay the Immigration Skills Charge. The worker usually pays for the visa and Immigration Health Surcharge unless your business agrees to cover those costs as part of their offer package. We’ll advise you on who pays what and when.

Standard requests typically take up to 18 weeks. However, a priority processing option is available, which reduces the wait to around 5 working days if a slot is secured.

There’s no strict limit, but you’ll need to justify the request with accurate details of the roles, SOC codes, and reasons your original allocation isn’t sufficient. We help clients prepare strong, evidence-led requests that stand up to Home Office scrutiny.

Most Defined CoS requests are processed within two or three working days, if your justification is clear and meets Home Office requirements. However, delays are increasingly common, as are requests for additional information. We ensure that your request is properly prepared to reduce the risk of being refused.

Common pitfalls include:

• Choosing the wrong CoS type
• Submitting unclear justifications for Defined CoS requests
• Entering incorrect SOC codes or salary details
• Assigning a CoS too early or too late
• Incomplete record-keeping

We help you avoid these issues by reviewing each case and providing clear, step-by-step advice.

Your sponsored worker can use the CoS number to apply for their visa. We can manage this application directly or provide guidance to ensure it’s completed correctly.

A Certificate of Sponsorship is a digital document issued by a licensed sponsor to a foreign worker they intend to employ. It confirms key details about the job and individual and is required before a visa application can be submitted. Despite the name, it’s not a physical certificate.

• Defined CoS: For Skilled Worker applicants applying from outside the UK. Each request must be individually approved by the Home Office before assignment.
• Undefined CoS: For workers applying from within the UK. These are typically granted in advance through your annual allocation., which you can apply to increase throughout the year. 

We’ll help you determine the right type and manage the process from start to finish.