How to Sponsor an Employee for a Work Visa: Step by Step

To sponsor an overseas worker for a UK Skilled Worker visa, you must first hold a valid sponsor licence issued by the Home Office, then assign a Certificate of Sponsorship to the individual, and ensure the role and salary meet the current eligibility thresholds. The process involves several distinct stages — each with its own fees, documents and compliance obligations — and getting any stage wrong can delay your hire or cost you your licence.

Who This Guide Is For

This article is written for employers: HR managers, in-house recruiters, operations directors and small business owners who are considering or actively pursuing the ability to hire workers from outside the UK and Ireland. It covers the Skilled Worker route, which is the main sponsored work visa for most sectors.

This is a practical walkthrough, not legal advice. Where your situation involves eligibility uncertainty or compliance risk, you should consult a licensed immigration solicitor or an adviser regulated by the Office of the Immigration Services Commissioner (OISC). We are not a recruiter, an employer, or an immigration adviser.

Step 1: Confirm the Role Is Eligible Before You Do Anything Else

The single most common source of wasted time and money is discovering — after applying for a licence — that the role you want to fill does not qualify. Before you begin, check:

• Occupation code eligibility. The Skilled Worker route covers roles listed in Appendix Skilled Occupations, published by UKVI. Each role maps to a Standard Occupational Classification (SOC) code. If your role is not on that list, the Skilled Worker route does not apply.
• Minimum salary threshold. As of 2026, the general threshold for new Skilled Worker applications is indicatively £38,700 per year, but the applicable threshold is whichever is higher between the general rate and the going rate for the specific SOC code. Some codes — particularly in health and care — have different rules. Always check Appendix Skilled Occupations for the live going rate.
• Genuine vacancy test. The Home Office expects that sponsored roles are genuine, that you are not creating a post solely to bring someone in, and that the duties match the stated SOC code. Inspectors look at this closely during compliance visits.

If the role is borderline — for instance, if the salary sits just above threshold or the duties span two SOC codes — take legal advice before committing. A refusal or compliance finding at this stage is far harder to recover from than the cost of a professional opinion up front.

Step 2: Apply for a Sponsor Licence

If you do not yet hold a sponsor licence, this is your critical path item. Without it, you cannot assign a Certificate of Sponsorship, and without a CoS, your prospective employee cannot apply for their visa.

Who needs to apply?

Any UK employer wishing to hire a worker from outside the UK and Ireland on the Skilled Worker route (or most other work routes) must hold a sponsor licence issued by the Home Office. There is no exemption for size: a two-person partnership and a FTSE 100 company both go through the same process.

What the Home Office assesses

UKVI will assess whether your organisation is:

• A genuine, legally operating UK business
• Honest — no unspent criminal convictions for relevant offences among key personnel
• Capable of meeting sponsor duties (record-keeping, reporting, monitoring)

They will check Companies House records, HMRC records and may conduct a pre-licence compliance visit, particularly for new businesses or sectors with a history of abuse.

The application itself

Applications are submitted through the Sponsorship Management System (SMS) on GOV.UK. You will need to:

1. Create an SMS account
2. Complete the online application form
3. Upload supporting documents (corporate structure, evidence of trading, HR systems evidence)
4. Pay the application fee

For a detailed checklist of exactly which documents to prepare, see our Sponsor Licence Application Documents Checklist 2026.

Fees (indicative — verify before applying)

The application fee depends on your organisation's size. As of the time of writing:

Size is determined by the Companies Act definition (broadly: turnover, headcount, balance sheet). Fees are set by secondary legislation and change; always verify the current rate on the GOV.UK sponsor licence guidance before submitting.

For a complete breakdown of all costs across the sponsorship lifecycle, including the Immigration Skills Charge, see our UK Sponsor Licence Cost and Fees Breakdown 2026.

Step 3: Understand Processing Times

Standard sponsor licence applications currently take around eight weeks to process, though this is not guaranteed. A priority processing service is available for an additional fee; it aims to return a decision within ten working days, subject to capacity.

This has real hiring implications. If you have a candidate who needs to give notice at their current employer, factor eight-plus weeks into your timeline before you can even assign a CoS — let alone the time the worker then needs to apply for and receive their visa. See our article on the UK Sponsor Licence Application Timeline for a stage-by-stage timeline model.

Step 4: Assign a Certificate of Sponsorship

Once your licence is approved, you will be able to assign Certificates of Sponsorship (CoS) through the Sponsorship Management System. A CoS is not a physical certificate — it is a unique reference number tied to a specific role and a specific worker.

Defined vs. undefined CoS

• Defined CoS are requested from UKVI before assignment and are required for workers applying from outside the UK, or for switching into certain routes. You must request these in advance and UKVI may ask questions about the role.
• Undefined CoS are allocated to your account in a bank and can be assigned directly to a worker switching from a different visa inside the UK, for most Skilled Worker applications.

What information must appear on the CoS?

The CoS must accurately reflect:

• The job title and SOC code
• The salary (which must meet both the general threshold and the going rate for the code)
• The start date and duration
• The worker's personal details

Errors on the CoS are a leading cause of visa application delays and refusals. A misspelled name, incorrect SOC code, or salary that does not match the offer letter will require a correction — and correcting a CoS after it has been used can be complex. For a full walkthrough, read our dedicated Certificate of Sponsorship Explained for Employers guide.

The Immigration Skills Charge

At the point of assigning a CoS, you must pay the Immigration Skills Charge (ISC). This is a mandatory levy paid by the employer — it must never be charged to or deducted from the worker. Current indicative rates:

For a three-year visa, a large sponsor would pay approximately £3,000 in ISC alone, on top of the CoS assignment fee and any visa application fees. Verify current rates on GOV.UK.

Step 5: The Worker Applies for the Visa

Once you have assigned the CoS and given the reference number to your worker, the application process moves to them. You are not the applicant for the visa — the worker is. Your responsibilities at this stage are:

• Provide the worker with the CoS reference number
• Confirm the job offer in writing, with salary and start date matching the CoS
• Be prepared to supply supporting documents if UKVI requests them

The worker applies via the UKVI online application portal, pays their visa application fee and Healthcare Surcharge (both of which are the worker's costs, not yours — though some employers voluntarily reimburse them as part of a relocation package), and submits biometrics at a Visa Application Centre.

Processing times vary by country and application type. The worker should not resign from their current role or make irrevocable travel plans until a decision has been received.

Step 6: Conduct Right to Work Checks Before the First Day

Before your new employee starts work, you are legally required to conduct a right to work check. For sponsored workers, this typically means:

• Checking the worker's vignette (entry clearance sticker) or Biometric Residence Permit (BRP) or eVisa
• For workers with an eVisa (now the standard format), using the Home Office online right to work checking service and retaining a record of the check

A right to work check does not confirm immigration status with certainty — it establishes your statutory excuse against a civil penalty. If you employ someone who does not have the right to work and cannot show you conducted a valid check, the civil penalty is up to £60,000 per illegal worker (indicative; verify against Home Office civil penalty guidance).

The check must happen before day one, not after. Retrospective checks do not provide a statutory excuse.

Step 7: Maintain Ongoing Compliance Duties

This is where many employers underestimate the commitment they have made. Holding a sponsor licence is not a one-time administrative task — it carries continuous legal obligations for as long as you sponsor workers.

Core ongoing duties

• Record-keeping: Maintain up-to-date records for each sponsored worker including contact details, copies of right to work documents, payslips and attendance records.
• Reporting: Report certain changes to UKVI within defined timeframes (typically ten working days). Reportable events include: a worker not showing up on their start date, a worker's salary changing, a worker leaving or being dismissed, or changes to the role.
• Monitoring: Track visa expiry dates and absences for each sponsored worker.
• Cooperation with Home Office inspections: You must allow UKVI compliance officers access to your premises, records and key personnel at reasonable notice or, in some cases, without notice.

Failure in any of these areas can result in your licence being downgraded, suspended or revoked. For a complete checklist, see our guide on Sponsor Licence Compliance Duties After Approval 2026.

Common Mistakes Employers Make — and How to Fix Them

1. Applying for a licence before the role is confirmed. Fix: identify the role, SOC code and salary before you begin. A licence without a genuine vacancy to fill achieves nothing and may invite scrutiny.

2. Assigning a CoS with the wrong salary. Fix: cross-check the offer letter, payroll and CoS before submission. The salary on all three documents must match and must meet both the general threshold and the going rate for the occupation code.

3. Not assigning a Level 1 User in the SMS before the Level 2 User tries to assign a CoS. Fix: ensure your SMS account hierarchy is set up correctly from day one. The Level 1 User (typically HR or a director) must be an employee, not a third-party agent.

4. Assuming compliance duties end when the worker arrives. Fix: build a tracking system — a spreadsheet at minimum, dedicated software ideally — that flags reporting deadlines and visa expiry dates automatically.

5. Passing sponsorship costs to the worker. Fix: never do this. Charging a worker — directly or through deductions — for the sponsor licence, CoS fee, Immigration Skills Charge, or visa application fee is a breach of sponsor duties and may expose the business to criminal liability.

6. Letting the licence lapse because renewal was overlooked. Fix: diarise your licence expiry date (licences are typically granted for four years) at least six months in advance. If your licence lapses, any workers you sponsor may be left without valid leave.

Illustrative Example: Sponsoring an Accountant

The following is an illustrative scenario — not a real case, not a prediction of outcomes.

Greenbridge Accounting Ltd is a medium-sized firm with 85 employees. They wish to hire a qualified accountant from overseas. The role maps to SOC code 2421 (Chartered and Certified Accountants).

They do not hold a sponsor licence, so they apply. As a medium/large sponsor, their indicative application fee is £1,476. Processing takes approximately seven weeks on the standard service.

Once the licence is granted, they assign a CoS for a three-year Skilled Worker visa at a salary of £48,000 — above both the general £38,700 threshold and the going rate for SOC 2421. The Immigration Skills Charge for a three-year visa at the medium/large rate is indicatively £3,000 (3 × £1,000). The CoS assignment fee itself is a further £239 (indicative).

The worker applies for their visa, pays the visa application fee and Healthcare Surcharge, and receives a decision within three weeks. Total elapsed time from deciding to sponsor to the worker starting: approximately 12–14 weeks.

Total employer costs (indicative, excluding legal fees): approximately £4,715 in government fees alone. Legal and HR costs would be additional.

For employers hiring across multiple roles or sectors — including in healthcare, logistics or skilled trades — the same process applies. See, for instance, how this plays out for businesses looking to fill roles in care: Care Assistant Jobs in the UK with Visa Sponsorship 2026 gives a useful sector perspective from the candidate side.

Similarly, if you operate in accountancy and are weighing whether to sponsor or recruit from the existing local market, the Accountant Jobs in the UK with Visa Sponsorship 2026 article sets useful context on what sponsored candidates in that sector typically expect.

A Note on Costs vs. Benefits

The total government fee cost to sponsor one worker for a three-year Skilled Worker visa — combining the licence application (amortised), CoS fee and Immigration Skills Charge — commonly runs to several thousand pounds for a medium or large employer, before any legal or HR costs. That is a meaningful investment.

It is worth setting against the cost of a vacancy that cannot be filled from the domestic market, or the cost of losing a team to skills shortages. For sectors facing persistent shortages — health and social care, engineering, construction, logistics — sponsorship is not a last resort but a structured talent pipeline. The compliance burden is real but manageable with proper systems.

When to Involve a Licensed Immigration Solicitor

You do not need a solicitor for every step. Many employers manage their SMS access, CoS assignments and record-keeping in-house once the licence is granted. However, professional advice is strongly recommended in these situations:

• Your first-ever licence application, particularly if your business is new, has a complex ownership structure, or operates in a sector with elevated compliance risk
• Any role where the salary or SOC code eligibility is uncertain
• If UKVI issues a Request for Additional Information (RfAI) during your licence application
• Before and after a compliance visit
• If your licence is suspended, downgraded or revoked
• Where a worker's personal circumstances (previous visa refusals, gaps in immigration history) add complexity to the CoS assignment

A licensed immigration solicitor or OISC-regulated adviser will give you advice specific to your circumstances. We cannot do that here. To find a regulated adviser, check the OISC public register or the Law Society's solicitor search.

Quick-Reference: The Sponsorship Process at a Glance

Further Reading for Employers

The sponsorship process has several sub-topics that warrant their own deep dives. We have dedicated guides on:

• How to Apply for a UK Skilled Worker Sponsor Licence
• Sponsor Licence Application Documents Checklist 2026
• UK Sponsor Licence Cost and Fees Breakdown 2026
• Certificate of Sponsorship Explained for Employers
• Sponsor Licence Compliance Duties After Approval 2026
• Why Sponsor Licence Applications Get Refused (2026)

All fees, thresholds and processing times cited in this article are indicative as of 2026. The authoritative source for current figures is the UKVI sponsor guidance on GOV.UK. Rules change; always verify before you act.

This article is for informational purposes only and does not constitute immigration legal advice. For advice specific to your organisation's circumstances, consult a licensed immigration solicitor or OISC-regulated adviser.