Renewing Your Skilled Worker Visa and Switching NHS Employers

Most internationally recruited NHS staff arrive in the UK on a Health and Care Worker visa (a category within the wider Skilled Worker visa system) sponsored by a specific NHS trust or health/care employer. That visa isn't a one-off event — it needs renewing before it expires, and if you want to move to a different NHS employer while still sponsored, that's a separate, deliberate process too, not something that happens automatically because you're still "working for the NHS." This guide walks through both, plus the genuinely serious scenario of what happens if your employment ends before a new sponsor is in place.

The visa you're renewing, in outline

The Health and Care Worker visa is a category of the UK's Skilled Worker visa route, created specifically for eligible health and care occupations, many of which sit within the NHS. Whichever exact category you hold, the underlying mechanics work the same way: your permission to work is granted for a defined period, tied to a specific sponsoring employer and role, and it needs formally extending — not simply "continuing" — once that period is up. It also isn't tied to "the NHS" as a single entity; it's tied to whichever specific trust, board, or approved employer is named as your sponsor on your Certificate of Sponsorship.

That distinction — sponsored by a specific employer, not by the NHS in general — is the single most important thing to understand before either renewing or switching, because it explains why both processes exist as formal steps rather than administrative formalities you can skip.

Renewing (extending) your visa with your current employer

If you're staying with the same NHS employer, renewal follows a broadly consistent shape:

Switching to a different NHS employer while sponsored

This is the part people most often get wrong, usually by underestimating it. Moving to a different NHS trust, or to a different health/care employer altogether, while you're on a sponsored visa is not the same as an ordinary job move for a British or settled worker. Because your permission to work is tied to your specific sponsor, a new employer generally can't simply "take over" your existing sponsorship — they need to issue their own new Certificate of Sponsorship for the role they're offering you, and current mechanisms require you to make an application to the Home Office to update your permission before you start working for them, rather than relying on your existing visa to cover the new role.

In practical terms, that means a genuine change-of-employer move on a sponsored visa typically involves:

Because the exact application category, evidence requirements and current processing expectations for this kind of change can be adjusted by the Home Office over time, treat the checklist above as the shape of the process rather than a fixed procedure — always confirm the current mechanism (and what it's officially called at the time) on gov.uk, or with your prospective employer's international recruitment team, before resigning from your current role.

Get notified when we publish more NHS international recruitment guidance

We'll email you when new visa, registration and relocation guides go live in this cluster.

Notify me

Timing: why "well before expiry" matters more than it sounds

The single biggest practical risk in both renewing and switching isn't usually the immigration rules themselves — it's running out of runway. A few reasons the timeline is tighter than people expect:

• • Trust HR and international recruitment teams often handle sponsorship requests in batches alongside many other staff, and raising a new CoS isn't always instant
• • A Certificate of Sponsorship is generally only valid for use within a limited window once it's assigned, so requesting one too early relative to your actual start date or extension date can also cause problems
• • If you're switching employer, your notice period with your current employer, the new employer's own recruitment and onboarding checks (DBS, occupational health, references), and the visa application itself all need to line up — and none of them can be meaningfully compressed at the last minute
• • Home Office processing times, while generally published, are estimates rather than guarantees, and can extend during busier periods

Because of this, starting the conversation with your employer's HR or international office as early as your trust's own process allows — commonly recommended as several months ahead of an expiry date or planned move — gives you the most room to absorb delays without ending up in a genuine crunch as your current visa's expiry approaches.

If your employment ends before you've secured a new sponsor

This is the scenario worth taking most seriously, and we're not going to soften it: if your sponsored employment ends — whether through redundancy, dismissal, resignation, or your employer losing its sponsor licence — before you've secured a new sponsor and had an application approved, your right to remain in the UK on that basis is directly at risk.

In broad terms, the mechanism generally works like this: your employer is required to report the end of your sponsored employment to the Home Office within a set number of working days. You'll then typically be notified that your permission has been curtailed (cut short), along with a period during which you can find a new sponsor and apply to update your permission, switch to a different immigration route you qualify for, or make arrangements to leave the UK. That period has commonly been reported as around 60 days in recent guidance — but treat that figure as indicative, not guaranteed, because it can be shorter (or not apply at all) depending on the circumstances of how your employment ended, and because Home Office practice in this area has reportedly moved faster in some recent cases than people have been used to.

During whatever window applies to you, your realistic options are generally some combination of: finding a new NHS or health/care sponsor quickly and getting a fresh Certificate of Sponsorship issued before applying to update your permission, checking whether you're eligible to switch to a different visa category you qualify for on some other basis (for example, through a partner or family route, if applicable to you), or making arrangements to leave the UK if neither of the above is realistic in the time available. Which of these is actually open to you depends entirely on your personal circumstances, and this is exactly the kind of decision a qualified adviser should be involved in, not something to work out alone from general guidance.

Watch out for exploitative recruitment practices

People in this kind of vulnerable position — whether facing an ordinary renewal, a genuine employer switch, or the sharper edge of a lost sponsor — are sometimes targeted by unregulated intermediaries or agencies promising a "guaranteed" new sponsor or fast-tracked visa outcome in exchange for an upfront fee. No legitimate route works this way; a real outcome always depends on an actual employer offering an actual role and a Home Office decision, neither of which any agency can honestly guarantee. NHS Employers' code of practice for the international recruitment of health and social care personnel sets out what ethical recruitment in this space is supposed to look like — use it as a reference point if something feels off about an offer you've received.

Keeping the right paper trail throughout

Both renewal and switching-employer applications tend to go more smoothly when you can produce a clean, complete record on request, rather than reconstructing your history from memory under time pressure. It's worth building this habit from the start of your sponsorship, not only when a renewal or a move is imminent:

• • Every Certificate of Sponsorship you've ever been assigned, including ones from previous renewals or a previous employer, not just your current one
• • Every visa decision letter or digital status confirmation the Home Office has sent you, in date order
• • Payslips covering your entire sponsored employment, since salary compliance is a live requirement of the route, not just a one-off eligibility check at the start
• • Contracts, offer letters, and any correspondence about role changes, secondments, or changes to your working hours, since these can all be relevant to whether your CoS still accurately reflects your job
• • A simple personal timeline of your own — dates of each visa grant, extension, employer, and any gaps — that you keep updated as things happen, rather than trying to rebuild it retrospectively

None of this is about distrust of your employer or the Home Office — sponsorship compliance is audited on both sides, mistakes and administrative delays do happen, and having your own clean record is simply the most reliable way to resolve a query quickly if one arises, rather than waiting on someone else's filing system.

How this fits within the wider Skilled Worker system

It's worth remembering that the Health and Care Worker visa is a category within the Skilled Worker system as a whole, not a fully separate scheme with entirely its own rulebook. That matters practically in a couple of ways. First, some of the mechanics covered in this guide — the general shape of extension applications, and of change-of-employment applications — are common across Skilled Worker categories generally, even though the Health and Care Worker route has some of its own distinct features (which is why gov.uk maintains a dedicated Health and Care Worker visa section rather than folding it entirely into the general Skilled Worker pages). Second, if your circumstances change in a way that moves you between categories — for example, a role that no longer qualifies as a Health and Care Worker occupation but does qualify under the standard Skilled Worker route, or vice versa — that's a more significant change than an ordinary renewal or employer switch, and is exactly the kind of scenario where you should get individually tailored advice rather than assume the general process described here applies unmodified.

Practical checklist either way

• ✓ Start early — treat several months before any expiry date or planned employer move as the point to begin the conversation, not the deadline itself
• ✓ Confirm your prospective sponsor's licence status directly rather than assuming every NHS trust can sponsor every role
• ✓ Never resign from your current role, or start a new one, before your application to update your permission is actually approved — a signed contract or informal go-ahead from a new employer is not the same as an approved application
• ✓ Keep your own copies of Certificates of Sponsorship, decision letters, and correspondence with the Home Office and your employer's HR/international team
• ✓ Get individually tailored advice for anything unusual — a gap in employment, a previous refusal, a change in personal circumstances — rather than assuming general guidance like this page covers your exact situation

Related guides

The bottom line

Renewing a Health and Care Worker or Skilled Worker visa with your existing NHS employer is a routine, repeatable process built around a fresh Certificate of Sponsorship and a timely application — the main risk is leaving it too late, not the mechanism itself. Switching to a different NHS employer is a genuinely separate, deliberate process that needs a new CoS and a fresh application before you start the new role, not something that happens automatically because you're moving within the wider NHS. And if your sponsored employment ends before a new sponsor is in place, you're in a time-sensitive situation that calls for prompt, qualified immigration advice — not something to navigate alone from a general guide like this one. Whatever stage you're at, gov.uk's own Skilled Worker and Health and Care Worker visa guidance is the only source that's guaranteed to reflect the current rules, and a regulated immigration adviser is the right source for advice tailored to your actual circumstances.

Frequently asked questions

Frequently asked questions

Can I renew my Health and Care Worker visa with the same NHS employer indefinitely? +

In general terms, yes — as long as you and your employer continue to meet the requirements of the route each time, there's no fixed cap on the number of times you can extend a Skilled Worker/Health and Care Worker visa with the same sponsor. Each extension needs a fresh Certificate of Sponsorship covering the new period, and your employer needs to remain a licensed sponsor in good standing. After enough continuous qualifying residence you may also become eligible to apply for indefinite leave to remain instead of extending again — see our <a href="/international-recruitment/indefinite-leave-to-remain-nhs-staff/">ILR for NHS staff guide</a> for that, including important detail on a currently-proposed change to how long that takes.

Do I need a new visa, or just a new Certificate of Sponsorship, when I renew? +

Both, in effect. Your current employer issues you a new Certificate of Sponsorship covering the extended period, but the CoS on its own isn't a visa — you then make a separate visa extension application to the Home Office that references it. Skip the second step and the new CoS achieves nothing on its own.

Can I switch NHS employers without changing anything on my visa? +

No — this is one of the most consequential misunderstandings people have about sponsored visas. Your permission to work is tied to your specific sponsor and role, not to the NHS as a general employer. Moving to a different trust or a different sponsoring organisation, even for a very similar job, generally requires the new employer to issue a new Certificate of Sponsorship and requires you to apply to the Home Office to update your sponsorship before you start working for them. Turning up for your first shift at a new trust without having done this is a serious compliance problem, not a paperwork technicality.

How long before my visa expires should I start the renewal process? +

Earlier than feels necessary. Gov.uk allows Skilled Worker extension applications from a set number of days before expiry, but the real constraint is usually your employer's internal lead time to raise a new Certificate of Sponsorship, not the Home Office's own application window. Multi-month timelines for the CoS request, any supporting checks, and the application itself are common in busy trust HR/international teams, so starting the conversation with your employer as early as your trust allows — many recommend three to six months out — gives you the most room to absorb delays.

What happens if my current visa expires while my extension application is still being decided? +

If you submit a valid extension (or change of employment) application before your current permission expires, your existing rights are generally protected under what's sometimes called '3C leave' while the Home Office decides — meaning you don't automatically become an overstayer just because a decision hasn't landed yet. This is a genuinely technical area with real consequences if you get the timing wrong, so treat the exact conditions and any exceptions as something to confirm with gov.uk or a qualified immigration adviser rather than something to assume applies to your exact situation.

If my job ends and I haven't found a new sponsor, how long do I have? +

Sponsors are required to report when your employment ends, and the Home Office then typically writes to you setting out a period to either leave the UK, switch to another basis of stay you qualify for, or secure a new sponsor and apply to update your permission — a period that has commonly been reported around 60 days, though the exact length, and whether one applies at all, depends on your specific circumstances and can change. Some situations (for example, if you were involved in the reason your employment ended) can result in a much shorter or non-existent grace period. Don't plan around a specific number of days without confirming it applies to you — get advice immediately if this happens.

Can a recruitment agency or NHS trust guarantee me a new sponsor if I lose my job? +

No legitimate agency or employer can honestly guarantee a sponsorship outcome, because ultimately a new Certificate of Sponsorship and a successful Home Office decision both depend on factors outside any one party's control. Be very wary of anyone — an agency, an individual contact, or an unregulated 'consultant' — who offers a guaranteed placement or visa outcome in exchange for an upfront fee. This is a known pattern used to exploit people in a genuinely vulnerable position. NHS Employers' code of practice for international recruitment exists partly to protect against this kind of exploitation.

Does moving from one NHS trust to another count as 'switching employer' even though it's still the NHS? +

Yes. Each individual NHS trust, board or foundation trust that holds its own sponsor licence is a distinct sponsoring organisation in immigration terms, even though all of them sit within the wider NHS. Moving from Trust A to Trust B is a change of sponsor exactly the same as moving to a private employer would be, and needs the same new-CoS-plus-application process. 'It's all still the NHS' is not a basis for skipping the formal switch.

Will switching employer affect my progress toward indefinite leave to remain? +

Generally, changing sponsored employer on the same overall visa route doesn't reset your accumulated qualifying residence, provided you keep continuous, lawful leave throughout the switch and don't have a gap in your permission to be in the UK. However, this is exactly the kind of detail where a gap, an error in timing, or an unusual personal circumstance can create a real problem, and the qualifying period itself is currently the subject of a live government reform proposal (see our <a href="/international-recruitment/indefinite-leave-to-remain-nhs-staff/">ILR guide</a>). Get this confirmed for your specific case rather than assuming continuity.

Where should I go for help if my situation doesn't fit neatly into this guide? +

Start with your current or prospective NHS employer's HR or international recruitment team, who deal with sponsorship mechanics routinely and can often flag problems early. For anything with real stakes — a job loss, a refused application, an unusual gap in status, or genuine confusion about your options — a solicitor or adviser regulated by the Office of the Immigration Services Commissioner (OISC) or the SRA/Law Society for immigration matters is the right source of individually tailored advice, which nothing on this page is a substitute for. Gov.uk's own Skilled Worker and Health and Care Worker visa pages remain the single most current source for the mechanics themselves.