Do I Need a New Certificate of Sponsorship to Switch Employers in the UK?

Oh, the joy and dread of navigating UK immigration rules when you're already settled in and decide it's time for a career move! It’s a common scenario: you’ve found your feet, perhaps even found a better opportunity, but then that sinking feeling hits – "What about my visa? Do I need a new Certificate of Sponsorship (CoS)?" It feels like starting from scratch sometimes, doesn't it? Well, you're not alone in that frustration. This guide is going to walk you through exactly what you need to know about switching employers on a Skilled Worker visa in the UK, especially when it comes to that all-important CoS.

Understanding Your Current Certificate of Sponsorship (CoS)

Before we dive into the nitty-gritty of switching, let's take a moment to understand what a Certificate of Sponsorship actually is and why it's such a cornerstone of your Skilled Worker visa. It’s not a physical certificate you hang on your wall, but rather a unique reference number issued by your sponsoring employer, and it’s digitally held by the Home Office.

What is a Certificate of Sponsorship Anyway?

Think of your Certificate of Sponsorship (CoS) as the official permission slip from the UK government that allows your employer to sponsor you for a job. It’s essentially a digital record that confirms a licensed sponsor (your current employer) is offering you a specific job that meets the Skilled Worker visa requirements. This includes details like your job title, salary, start date, and the Standard Occupational Classification (SOC) code for your role. This SOC code is incredibly important because it defines if your job is considered 'skilled' enough and often dictates the minimum salary you must be paid. It's essentially the bedrock upon which your entire visa application stands. Without a valid CoS, there’s no Skilled Worker visa, plain and simple.

The Link Between Your CoS and Your Current Employer

Your current CoS is inextricably tied to the employer who issued it and the specific job details they provided to the Home Office. It’s not a general work permit that allows you to work for any employer in the UK; it’s highly specific. When your visa was granted, it was done so on the basis of that particular job offer and the terms outlined in your CoS. This means that if those terms change – specifically, if your employer changes – the existing CoS becomes invalid for your new employment situation. It's a bit like having a ticket to a specific concert on a specific date; that ticket won't get you into a different concert or even the same concert on a different night. The system is designed this way to ensure strict control over sponsored employment and to prevent people from using their visa for jobs that don't meet the stringent Home Office criteria.

The Crucial Question: Do You Need a New CoS?

This is often the million-dollar question that keeps expats up at night, isn't it? You’ve found a new, exciting opportunity, but the administrative hurdle feels daunting. Let’s tackle it head-on.

The Short Answer: Yes, Almost Always

I know, it's probably not the answer you were hoping for, but for the vast majority of people on a Skilled Worker visa looking to move to a new company in the UK, yes, you will need a new Certificate of Sponsorship from your new employer. The existing CoS is linked to your current sponsor, and if you change employers, you are essentially changing the fundamental basis of your visa.

The UK immigration system is quite rigid on this point. Even if your new job is identical to your old one, even if you’re staying in the same city, if the employer changes, the sponsorship changes. This is because your new employer also needs to hold a valid sponsor licence with UK Visas and Immigration (UKVI) and issue a CoS that is specific to their company and your new role with them. It’s a fresh start in terms of sponsorship, even if it feels like a continuation of your career path. This might feel like an unnecessary bureaucratic hoop to jump through, especially when you’re already legally working in the UK, but it’s a non-negotiable part of the process.

When a New CoS Is Definitely Required

Let's break down the scenarios where there's absolutely no way around getting a new CoS and, consequently, applying for a new visa:

• Changing Employer: This is the most straightforward and common scenario. If you resign from your current company and accept a job with a different company, your new employer must issue you a new CoS. There are no exceptions here. Your old CoS is cancelled when your previous employer informs the Home Office of your departure.
• Significant Change in Job Role with the Same Employer: This one can be a bit trickier, but it’s still critical. If you remain with your current employer but your job duties change so drastically that your SOC code needs to be updated, or if your salary drops below the minimum threshold for your current visa, you'll need a new CoS and a new visa application. For example, if you were a senior software engineer and you're promoted to a director role with vastly different responsibilities, or if your salary is adjusted to fall below the general or going rate threshold for your role as outlined by the Home Office, a new CoS is likely required. The key is whether the new role is genuinely different enough to warrant a new SOC code or if it affects the salary requirements. It’s not just a title change; it’s about the underlying nature of the work.
• Changes Affecting Salary Thresholds: This is becoming increasingly important, especially with the regular updates to salary requirements. For instance, the Skilled Worker Visa salary thresholds in 2026 might be different from when you first applied. If your new job (even with the same employer, in rare cases) doesn't meet the current general salary threshold or the specific 'going rate' for the job’s SOC code, you'd need a new CoS that reflects a compliant salary, or your new employer would need to justify a lower salary under specific exceptions, which is rare for a job switch.

Navigating the Process of Switching Employers on a Skilled Worker Visa

Okay, so we've established that you'll almost certainly need a new CoS and a new visa. Now, let's talk about how to actually make that transition as smooth as possible. It involves careful planning and communication, both with your new employer and, often, with your current one.

Finding a New Sponsoring Employer

The first hurdle, naturally, is finding a new job with an employer willing and able to sponsor you. Not all companies have a sponsor licence, and those that do might not always be open to sponsoring international talent, especially if they have plenty of local applicants.

When you're job hunting, make it clear from the outset that you require sponsorship. Don't hide it; be transparent. Many job boards in the UK, like Indeed and LinkedIn, allow you to filter for roles that offer visa sponsorship. Websites of larger multinational companies or those in sectors known for sponsoring (like tech, healthcare, and finance) are also good places to look. When you get to the interview stage, directly ask about their sponsor licence and their experience with the Skilled Worker visa process. You want an employer who understands the process, not one who's learning on the job while your immigration status hangs in the balance.

Networking is also incredibly useful here. Reach out to other expats or professionals in your field. Sometimes, the best opportunities come through personal connections. And remember, perfecting your CV for the UK job market is crucial, as is understanding the nuances of how to find work in the UK's finance and tech sectors if that's your field.

The New Employer's Responsibilities

Once you’ve landed that dream job, the ball is largely in your new employer's court when it comes to the CoS. Here’s what they need to do:

1. Hold a Sponsor Licence: First and foremost, they must possess a valid A-rated sponsor licence from the Home Office. If they don’t, they cannot sponsor you. Applying for a licence can take several weeks or even months, so this is a critical early check.
2. Assign a New CoS: Assuming they have a licence, they will then need to assign a new Certificate of Sponsorship to you. This involves logging into the Home Office’s Sponsorship Management System (SMS) and inputting all the details of your new job offer. They'll need your personal details, the job title, the relevant SOC code, your salary, and confirmation that the job meets the minimum skill and salary thresholds.
3. Pay the Immigration Skills Charge: Your new employer will also be responsible for paying the Immigration Skills Charge (ISC) to the Home Office. This is an upfront fee that varies depending on the size of the company and the length of your CoS. For small or charitable sponsors, it's typically £364 per year, while for medium/large sponsors, it's £1,000 per year. This is a significant cost, which is why some smaller businesses are hesitant to sponsor.
4. Issue the CoS: Once all the details are entered and the ISC is paid (if applicable), the CoS is assigned. You will then receive the CoS reference number, which is what you need to make your visa application.

Applying for a New Visa

Even though you’re already in the UK, you’ll need to make a new visa application. This is often referred to as a ‘variation of leave’ or ‘switching employer’ application.

1. Gather Your Documents: You’ll need a fresh set of documents, including your new CoS reference number, your passport, evidence of your previous visa, bank statements (to prove maintenance funds, though often your employer can certify this), and potentially qualification documents.
2. Complete the Online Application: You'll fill out a new online Skilled Worker visa application form on the UKVI website. Be meticulous and ensure all information matches your CoS exactly. Any discrepancies can lead to delays or even refusal.
3. Pay the Visa Application Fee: You will have to pay the visa application fee again. This fee can vary, so check the latest figures on the official UKVI website.
4. Pay the Immigration Health Surcharge (IHS): Yes, unfortunately, you'll need to pay the Immigration Health Surcharge (IHS) again for the duration of your new visa, unless you're eligible for an exemption (e.g., certain Health and Care Worker visa holders). This is often a significant cost, and it's something to factor into your financial planning for the move. You can learn more about how the Immigration Health Surcharge gives you NHS access in the UK, but be prepared for the expense.
5. Book Your Biometrics Appointment: After submitting your application and paying the fees, you'll need to book an appointment at a UK Visa and Citizenship Application Services (UKVCAS) service point to provide your fingerprints and a photo (biometrics).
6. Receive Your New Visa: If your application is successful, you’ll typically receive an email confirmation, and then your Biometric Residence Permit (BRP) card (or notification of your eVisa status) will be sent to you by post within 7-10 working days. You can generally start working for your new employer as soon as your new visa is granted, even if you don't have the physical BRP card yet, as long as you have the digital confirmation.

Important Tip: During this transition, you are legally only allowed to work for your current employer until your new visa for the new employer has been granted. Do not start your new job before your new visa is approved, as this would constitute illegal working and could severely jeopardise your immigration status.

Key Considerations and Potential Hurdles

Switching jobs on a visa isn't just about the paperwork; there are several practical and financial elements you absolutely need to consider to ensure a smooth transition.

Timing Your Job Switch

Timing is everything. You need to ensure a seamless transition between your old job and your new one without a gap in your legal right to work.

• Notice Periods: Be mindful of your contractual notice period with your current employer. You don't want to leave your old job before your new visa application is approved. It's often safer to work out your notice period with your current employer while your new visa application is being processed.
• Visa Validity: Ensure your current visa has sufficient time left. While you can apply for a new Skilled Worker visa from within the UK before your current one expires, you need to ensure you have valid leave to remain at the point of application.
• Application Processing Times: The Home Office processing times can vary. While standard applications usually take around 3-8 weeks, there are priority services available for an additional fee if you need a quicker decision. Factor this into your start date negotiations with your new employer. Open communication with your new employer about these timelines is crucial.

Salary Thresholds and Job Codes

The UK immigration system has specific requirements for the Skilled Worker visa, particularly concerning salary and job skill levels.

• Current Salary Thresholds: As of early 2026, the general salary threshold for a Skilled Worker visa has seen significant increases. Your new job offer must meet the higher of either the general salary threshold (currently around £38,700 per year, but always check the most up-to-date Home Office guidance) OR the 'going rate' for your specific occupation code. The going rate is the median salary for that particular job type, as published by the Home Office. It's crucial that your new employer verifies this for your specific role.
• Standard Occupational Classification (SOC) Codes: Every eligible job under the Skilled Worker route has an SOC code. Your new employer must ensure your job description accurately reflects the duties and responsibilities associated with the chosen SOC code and that it meets the required skill level (RQF Level 3 or above). Misalignment here can lead to visa refusal. If you're wondering, for example, about the average salary in the UK's tech sector or how much IT professionals earn in the UK, make sure these figures align with the updated requirements.

The Financial Aspect: Visa Fees and IHS

Let’s be honest, moving abroad and getting visas is rarely cheap. Switching employers adds another layer of financial commitment.

• Application Fees: As mentioned, you will pay a new application fee and a new Immigration Health Surcharge (IHS). For a standard Skilled Worker visa, the application fee can range from around £800 to £1,500+, depending on whether you apply from inside or outside the UK and how long the visa is for. The IHS is also a substantial cost, typically £1,035 per year. If your new visa is for three years, that’s over £3,000 just for the IHS! This is on top of any legal fees if you choose to use an immigration lawyer.
• Who Pays? While the Immigration Skills Charge is the employer's responsibility, the visa application fee and IHS are typically borne by the applicant. However, some generous employers might offer to cover these costs as part of your relocation package or as a recruitment incentive. It's always worth asking during salary negotiations, but don't assume they will. Factor these costs into your personal budget.
• Financial Planning: It's a good idea to speak with a financial advisor or a service like Taxes for Expats to understand the full financial implications, including any tax considerations, of changing jobs and incurring new visa costs.

English Language and Life in the UK Test

Good news on this front! If you’ve already successfully met the English language requirement for your previous Skilled Worker visa (or if your nationality is exempt), you generally won't need to prove it again when applying for a new Skilled Worker visa. Your previous successful application satisfies this condition.

Similarly, if you're not yet applying for Indefinite Leave to Remain (ILR) or British Citizenship, you won't need to take the Life in the UK Test. This test is only required for settlement or citizenship applications. So, for a straightforward employer switch, you can breathe a sigh of relief on these two points. However, if you're looking further ahead, you might want to understand more about how to pass the Life in the UK Test.

What Happens If You Don't Get a New CoS (or don't apply for a new visa)?

This is where things can get seriously tricky, and frankly, risky. It's vital to understand the potential consequences of not following the rules.

The Risks of Unauthorised Work

If you leave your current sponsored job and start a new one without having a new CoS from your new employer and a new visa granted, you will be working illegally. This is a severe breach of immigration rules and carries significant penalties:

• Immediate Visa Curtailment: Your previous employer is legally obligated to inform the Home Office when you leave their employment. Once the Home Office is notified, your existing Skilled Worker visa will be "curtailed," meaning it will be cancelled. You will typically be given 60 calendar days to either find a new sponsor and apply for a new visa, switch to a different eligible visa route, or leave the UK.
• Deportation and Future Bans: Working illegally can lead to deportation from the UK. If you are deported, you will likely face a re-entry ban, making it incredibly difficult, if not impossible, to obtain any UK visa in the future.
• Impact on Future Applications: Even if you're not deported, a record of illegal working will be a huge red flag on any future visa applications, including for Indefinite Leave to Remain or British Citizenship. It demonstrates a disregard for immigration laws, which is looked upon very unfavourably.
• Employer Penalties: The new employer hiring someone without the correct right-to-work visa also faces severe penalties, including hefty fines and the potential loss of their sponsor licence. This is why legitimate employers are so careful about checking your right-to-work documents.

Grace Periods and Leaving the UK

As mentioned, if your current sponsored employment ends (either you resign, or you are dismissed), your visa will be curtailed. The Home Office will usually send you a letter (often by email) informing you of this curtailment and giving you a grace period, typically 60 days, to sort out your immigration status.

During this 60-day period, you are expected to either submit a new visa application with a new sponsor (which must be granted before you start work for them), switch to another eligible visa category (like a dependant visa if your partner has one), or make arrangements to leave the UK. You cannot continue working for your old employer once your notice period ends, and you cannot start working for a new employer until your new visa is granted. If you fail to take action within this grace period, you will become an overstayer, which is another serious immigration offence.

This period can be incredibly stressful, so it really highlights why it’s best to have your new CoS secured and your new visa application submitted before you officially leave your current role, if at all possible. This overlap provides a safety net and avoids any gaps in your legal right to remain and work.

Here’s a simplified breakdown of the steps involved:

Step	Description	Responsibility	Key Consideration
1. Secure New Job Offer	Find a new employer who holds a valid Skilled Worker sponsor licence and offers you a job that meets the skill and salary thresholds.	Applicant	Be transparent about needing sponsorship.
2. New CoS Issuance	New employer assigns a Certificate of Sponsorship (CoS) to you via the Home Office’s Sponsorship Management System (SMS).	New Employer	Ensure job details (SOC code, salary) match Home Office requirements. New employer pays Immigration Skills Charge.
3. Submit New Visa Application	Complete the online Skilled Worker visa application form, using your new CoS reference number. Gather all required documents.	Applicant	All information must be accurate and match your CoS. Apply before your current visa expires.
4. Pay Fees	Pay the new Skilled Worker visa application fee and the Immigration Health Surcharge (IHS) for the duration of your new visa.	Applicant	These are significant costs; budget accordingly.
5. Biometrics Appointment	Attend a UKVCAS service point to provide your fingerprints and a photograph.	Applicant	Book this appointment quickly after submitting your application.
6. Visa Decision & Grant	Receive confirmation of your new visa being granted. Your BRP card (or eVisa confirmation) will be sent.	Home Office	You can usually start work for your new employer once your new visa is granted, even if the physical BRP hasn't arrived.
7. Inform Current Employer	Once your new visa is granted, resign from your current job, adhering to your notice period. Your old employer will notify the Home Office of your departure.	Applicant	Do NOT resign or start new work before your new visa is granted.

Navigating the nuances of immigration, especially when you're already here and just trying to make a career move, can feel overwhelming. Remember, your previous experience meeting the English language requirement is usually sufficient, so no need for a repeat performance on that front. And for those moments when you're trying to adapt to new workplace jargon or simply want to improve your communication skills to excel in your new UK role, tools like iTalki can be fantastic for practising English with native speakers.

The key takeaway is preparation and understanding that while you're already an expat in the UK, a job change almost always resets the immigration clock for that specific employment and requires a new application. It’s an investment of time and money, but with careful planning, it’s entirely manageable. If you're planning your move, consider reading our guide on the complete visa and immigration guide for moving to the UK, or even how to get a Certificate of Sponsorship from a UK employer if you're helping a potential new hire. For those thinking about the long game, understanding the 5-year route to settlement in the UK could also be beneficial.

Disclaimer

Please note that immigration rules and fees are subject to change, often with little notice. The information provided in this article is for general guidance only and does not constitute legal advice. While we strive to keep information up-to-date, always verify current requirements and fees on the official UK government (GOV.UK) website or consult with a qualified immigration solicitor for advice tailored to your specific circumstances.