A Certificate of Sponsorship (CoS) is an important part of the UK Skilled Worker visa process. For overseas workers and UK employers, a delay in receiving a CoS can create uncertainty, particularly when a job start date or existing visa expiry date is approaching.
If your Certificate of Sponsorship is delayed, it is important to understand why the delay may be happening, what you can do, and when professional immigration guidance may be useful.
What Is a Certificate of Sponsorship?
A Certificate of Sponsorship (CoS) is an electronic record issued by a UK employer that holds a valid Sponsor Licence. It provides information about the sponsored worker and the job they will undertake in the UK.
A CoS is generally required for sponsored work routes such as the Skilled Worker Visa.
There are two main types:
Defined CoS
A Defined CoS is generally used when a Skilled Worker is applying for entry clearance from outside the UK.
Undefined CoS
An Undefined CoS is generally used for eligible workers applying from inside the UK and for certain other sponsored work routes.
Understanding which type of CoS is required is the first step in understanding the expected process and timescales.
How Long Does a CoS Take?
The processing time can depend on the type of CoS and the circumstances of the application.
According to current GOV.UK guidance, Defined CoS applications are usually approved within one working day, although they may take longer if UK Visas and Immigration needs to carry out additional checks.
For an employer requesting an additional Undefined CoS allocation, the usual decision period is currently longer, although eligible sponsors may be able to use the relevant priority service.
Because processing arrangements can change, employers should always check the latest Home Office guidance.
Why Is My CoS Taking So Long?
There are several possible reasons for a CoS delay in the UK.
1. Additional Home Office Checks
UKVI may need to conduct additional checks before approving a sponsorship request.
2. Incorrect Information
Errors in information such as the job role, salary, occupation code or worker details can cause complications.
3. Insufficient CoS Allocation
An employer may have a Sponsor Licence but not have enough Undefined CoS allocation available.
4. Sponsor Compliance Checks
UKVI may need to consider whether the sponsor is meeting its sponsorship responsibilities.
5. Additional Information Requested
The Home Office may request further information or clarification from the sponsor.
For this reason, a delay does not necessarily mean that a CoS application has been refused.
What Should You Do If Your CoS Is Delayed?
If your Certificate of Sponsorship is taking longer than expected, the employer should first check the Sponsorship Management System and any correspondence from the Home Office.
✓ Check the CoS Type
Establish whether the application is for a Defined or Undefined CoS.
✓ Check for Home Office Messages
The sponsor should check the Sponsorship Management System and relevant email accounts for requests or updates.
✓ Review the Information
Check that the job title, occupation code, salary, working arrangements and worker details are accurate.
✓ Check Your Visa Deadline
If you are already in the UK, check when your current immigration permission expires.
This is particularly important if your new CoS is required for a Skilled Worker Visa extension or visa switch.
What If Your UK Visa Is Expiring While You Wait for Your CoS?
This can be one of the most important issues for workers already in the UK.
If your current visa is approaching its expiry date, do not simply wait for the CoS without considering your immigration position.
Depending on your circumstances, you may potentially need to:
✓ Extend your existing visa
✓ Switch to another eligible immigration route
✓ Change employer
✓ Apply for ILR if eligible
✓ Take another appropriate immigration action
Where an eligible in-time application is made before current permission expires, section 3C leave may apply in certain circumstances while the application is being considered.
However, section 3C leave does not automatically apply to every situation, so individual circumstances matter.
Can a CoS Be Prioritised?
Some sponsor-related requests may be eligible for the Home Office priority service.
However, not every CoS request can be prioritised.
For example, certain additional Undefined CoS allocation requests may qualify for priority processing, while Defined CoS requests are handled differently.
Employers should check the latest Home Office guidance before paying for a priority service.
Common CoS Mistakes Employers Should Avoid
Employers sponsoring overseas workers should take care when preparing sponsorship information.
Common issues include:
✓ Incorrect occupation code
✓ Incorrect salary information
✓ Inaccurate job description
✓ Incorrect worker details
✓ Insufficient CoS allocation
✓ Failure to meet Sponsor Licence requirements
✓ Incomplete or inconsistent information
These issues can create unnecessary delays and potentially cause more serious sponsorship problems.
How Ace Immigration Services Can Help
If your CoS is delayed, Ace Immigration Services can help you understand the situation and identify the appropriate next steps.
Our support can include:
✓ CoS Guidance
Helping employers and workers understand the Certificate of Sponsorship process.
✓ Document Review
Reviewing relevant documents and information for potential inconsistencies or missing evidence.
✓ Skilled Worker Visa Support
Assisting with the Skilled Worker Visa application once the required CoS is available.
✓ Visa Expiry Guidance
If your current UK visa is expiring soon, we can help you understand your potential immigration options.
✓ Sponsor Licence Support
We can also assist employers with Sponsor Licence and sponsorship-related matters.
CoS and Skilled Worker Visa Support in Harrow
Ace Immigration Services supports clients with UK immigration matters in Harrow and surrounding West London areas, including:
✓ Harrow
✓ Pinner
✓ Stanmore
✓ Kenton
✓ Wembley
✓ Ealing
✓ Southall
✓ Brent
Our services include:
✓ Certificate of Sponsorship (CoS)
✓ Skilled Worker Visa
✓ Sponsor Licence
✓ Visa Extensions
✓ Visa Switching
✓ Family Visa
✓ Spouse & Partner Visa
✓ ILR
✓ British Citizenship
✓ Naturalisation
✓ Visa Refusal Guidance
Final Thoughts
A delayed Certificate of Sponsorship can be stressful, but it does not necessarily mean your UK employment or visa plans have failed.
The first step is to understand the type of CoS involved, check for Home Office correspondence and establish whether any additional action is required.
If you are already in the UK and your visa is approaching its expiry date, it is particularly important to consider your immigration position early rather than waiting until the last day.
Professional guidance can help employers and workers understand the process, identify potential issues and prepare for the next stage of the UK immigration application.
Need Help With a Delayed CoS?
Ace Immigration Services provides guidance on Certificate of Sponsorship, Skilled Worker Visa and UK immigration matters.
📞 +44 203 489 9838
📱 07424 904064
🌐 aceimmigration.co.uk
📍 Harrow, UK
