TL;DR
UK employers wishing to sponsor international workers on the Skilled Worker visa must hold a Home Office sponsor licence. This article covers the application process, the duties and compliance requirements, fees, and the steps from initial licence to assigning Certificates of Sponsorship.
Key facts
- Sponsor licences are granted by the Home Office under sponsor guidance published on GOV.UK.
- Licences are graded; an A-rated licence allows the issue of CoS. A B-rated licence carries restrictions and is subject to an action plan.
- Licence applications include fee, supporting documents, named personnel and evidence of HR systems.
- Sponsor compliance is checked through audits and reports; serious breaches can result in licence suspension or revocation.
What a sponsor licence permits
A sponsor licence allows the employer to issue Certificates of Sponsorship for the routes it is licensed to sponsor. The Worker licence covers Skilled Worker, Health and Care Worker, Senior or Specialist Worker and other long-term work routes. The Temporary Worker licence covers short-term routes including the Charity, Religious, Government Authorised Exchange, Creative and other categories.
Most employers apply for the Worker licence for Skilled Worker sponsorship. Sponsors can hold both Worker and Temporary Worker licences if they need to sponsor across categories.
Applying for a sponsor licence
Applications are made via the Home Office sponsor portal. The employer submits: licence application form, fee, four mandatory and optional supporting documents (Companies House registration, VAT registration, employer's liability insurance, business bank statement, PAYE reference), and details of the Authorising Officer, Key Contact and Level 1 User.
Processing times vary; standard service is typically 8 weeks. Priority service is available for an additional fee and reduces this to about 10 working days. Decisions can be granted, refused with appeal route, or cooled-off (not allowed to reapply for a set period).
Sponsor duties
Sponsors must comply with reporting and record-keeping duties throughout the licence period. Reporting covers: changes to sponsored workers (job, salary, address), end of employment, unauthorised absences, sponsor's own changes (corporate restructuring, change of personnel).
Record-keeping covers: copies of the worker's right-to-work documents, evidence of the recruitment process, attendance records (where applicable), and payroll records showing payment at the salary stated on the CoS. Records must be available for audit.
Compliance audits and consequences
The Home Office conducts both announced and unannounced compliance visits. The audit examines records, interviews personnel, and verifies that sponsored workers are doing the role at the salary stated. Findings range from minor (administrative warning) to major (action plan, B-rating, suspension, revocation).
Licence revocation usually leads to all sponsored workers' visas being curtailed with the standard 60-day departure window. Workers in the UK at the time of revocation face significant disruption; the sponsor's reputation also takes lasting damage.
Costs of holding a sponsor licence
The initial application fee depends on whether the employer is small/charity or medium/large. The licence is renewed at a fee published on GOV.UK. Per CoS issued, the sponsor pays the CoS fee (per role sponsored) and the Immigration Skills Charge (per year of sponsorship).
Indirect costs include the HR systems for record-keeping, the immigration adviser fees commonly used to maintain compliance, and the time investment of named personnel. Many sponsors find the total cost per sponsored worker is meaningful before the role even starts.
Compliance obligations after licence grant
Sponsor duties under Workers and Temporary Workers guidance Part 3 cover: reporting changes to sponsored workers (within 10 working days), maintaining records of recruitment processes, right-to-work checks under the Immigration, Asylum and Nationality Act 2006, evidence of salary payments matching the CoS, monitoring of sponsored workers' attendance (where applicable to the role), and ongoing co-operation with Home Office compliance visits.
Records to maintain for each sponsored worker: right-to-work check evidence (passport, eVisa share code result, BRP record); recruitment evidence (advertising, shortlisting decisions, interview notes where required); employment contract and the CoS; payroll records showing payment matching CoS terms; attendance and absence records where relevant; details of any reported changes.
Compliance visits: the Home Office's compliance officers conduct both announced and unannounced visits. The visit examines: records of sponsored workers; interview of HR personnel; verification that sponsored workers are doing the role at the salary stated; physical inspection of the workplace where applicable. Findings range from administrative warnings to action plans, B-rating, suspension or revocation.
Licence revocation: serious or systematic breaches lead to revocation. Sponsored workers typically have their visas curtailed with a 60-day notice for departure or alternative arrangements. The revoked employer is barred from holding a sponsor licence for a defined cooling-off period (typically 12 months for first revocation, longer for repeat).
Renewing the licence and managing CoS allocations
Sponsor licences are valid for 4 years initially. Renewal requires application at the published renewal fee, evidence of continued compliance with sponsor duties, and any required updates to the licence (changes of address, personnel, ownership). The 4-year cycle means budgeting for renewal alongside operational sponsorship costs.
Annual CoS allocation: each sponsor receives an allocation of Undefined CoS at licence grant and at annual review. The allocation is based on the sponsor's projected hiring of international workers; sponsors hiring more than their allocation can apply for additional CoS during the year.
Defined CoS: pre-approved by the Home Office for specific overseas applicants in defined circumstances. Defined CoS are typically used for fresh overseas applications where Home Office pre-approval supports the route's policy purpose. The sponsor applies for the Defined CoS with case-specific evidence.
Sponsor priority services: applications for sponsor licences can be priority-processed for an additional fee (about £500-£600, reducing standard 8-week service to about 10 working days). Priority on CoS allocation requests and pre-licence priority are also offered. Each priority service is paid in addition to standard fees.
Cost calculations for sponsoring international workers
Initial sponsor licence cost: application fee (varying by employer size under the Companies Act 2006 small company definitions: turnover under £10.2m and balance sheet under £5.1m and employees under 50; small charities under similar size criteria). Standard fee for medium/large employers; reduced fee for small businesses and charities. Plus the priority fee if used.
Per-CoS cost: the CoS fee paid at assignment in the Sponsor Management System, plus the Immigration Skills Charge at the standard rate per year of sponsorship for medium/large sponsors, or the reduced rate per year for small businesses and charities. For a 5-year Skilled Worker CoS at the standard ISC rate, the total sponsor cost is typically £4,000-£6,000 before any HR overhead.
Pillar costs: sponsor licence renewal every 4 years; ongoing HR compliance time (record-keeping, reporting, audit preparation); legal and adviser fees for complex cases (sponsor licence renewals, compliance issues, defending audits). Many sponsors engage immigration solicitors or OISC-regulated advisers for ongoing compliance support.
Per-worker total cost from sponsor's perspective over a 5-year visa: typically £4,500-£7,000 in direct fees (CoS + ISC + priority where used). This is in addition to standard recruitment and onboarding costs. Some sponsors share these costs with workers contractually (subject to Home Office position that ISC is sponsor's cost).
When sponsorship is and is not the right choice
Sponsorship is suited to: roles meeting the going rate at the SOC code, employers with reliable HR systems for compliance, employers expecting to hire internationally over multiple years (the licence renewal cost is then amortised), and roles where the worker's expertise justifies the substantial upfront cost.
Not suited: very low-margin roles where the sponsor cost erodes the role's economics, employers without HR compliance capacity, one-off hires where the licence cost cannot be amortised. Some employers use intermediary sponsorship arrangements (umbrella employers) for short-term needs but these can carry their own risks.
The Sponsor Management System is the central tool. Effective use requires designated personnel (Authorising Officer, Key Contact, Level 1 User) who understand the system. Training and ongoing engagement with Home Office sponsor guidance is part of operational sponsorship.
Alternatives to direct sponsorship: hiring from the Global Talent, HPI, Graduate, family route, or other unsponsored work routes (where the worker brings their own visa) avoids the sponsor cost. Some employers structure recruitment to prefer candidates with their own work rights where possible, reserving sponsorship for hires where the candidate is the right fit and Skilled Worker is the only available route.
Choosing whether to apply for a sponsor licence
Business case for sponsor licence: justified where the employer plans to hire international workers across multiple years. The licence application cost, renewal, and ongoing compliance are amortised across the hires.
Alternatives to direct sponsorship: hiring workers with their own UK work rights (Graduate route holders, HPI holders, family route holders, Global Talent holders) avoids the sponsor cost. Some employers prefer this where candidates are available.
Sector-specific patterns: NHS bodies, large technology firms, financial services firms, and similar large employers typically hold sponsor licences as standard. Smaller businesses may sponsor selectively where the right candidate is not available domestically.
Umbrella sponsor arrangements: some employers use third-party sponsorship arrangements where another entity holds the sponsor licence and seconds the worker. These can carry compliance and contractual complexity; specialist advice is essential.
Recent changes affecting sponsors: the 2024 changes affecting care workers, the salary threshold increases, the Immigration Salary List replacement of SOL. Sponsors should monitor changes through GOV.UK and immigration practitioner publications.
Specialist support for sponsor compliance
OISC regulation: immigration advisers in the UK are regulated by the Office of the Immigration Services Commissioner under the Immigration and Asylum Act 1999. Levels 1, 2 and 3 cover different complexity of work; Level 3 covers the most complex cases including appeals and judicial review.
Solicitors authorised under the SRA: handle the most complex immigration matters, particularly cases involving Tribunal appeals, judicial review, and combination with other legal matters (family law, employment law, criminal law). The Law Society's Find a Solicitor service identifies specialists.
Specialist barristers: instructed by solicitors for Tribunal hearings and appeals. Chambers specialising in immigration (Garden Court, Doughty Street, Blackstone, Matrix among others) handle substantial volumes of immigration work.
Legal aid: available for some immigration matters. The scope has narrowed under LASPO; human rights challenges and asylum work remain in scope. The Legal Aid Agency administers funding.
Free advice services: Citizens Advice, JCWI (Joint Council for the Welfare of Immigrants), Right to Remain, Migrant Help, and many local charities provide free immigration advice for those who cannot afford private representation.
Long-term planning across the immigration journey
Long-term planning across the visa lifecycle: the journey from initial visa to ILR to British citizenship spans 6-8 years typically. Building the documentary record, maintaining lawful status, planning extensions and switches, and the eventual settlement application all benefit from a long-term view.
Career and family planning around immigration: visa requirements interact with career progression, education choices, family timing, and other life decisions. Where significant life events are planned, considering the immigration position is part of the planning.
Risk management: keep documents, maintain contact with UKVI through changes of address, comply with visa conditions, build a clean record. Issues that arise during the visa years are easier to address proactively than at the settlement application.
Backup routes: where the primary route encounters difficulties, alternative routes provide options. Skilled Worker holders can consider Global Talent, family route, Innovator Founder depending on circumstances. Long Residence (10 years) provides a backup settlement path.
Future return scenarios: where the applicant may return to the country of origin or move elsewhere, planning preserves options. Maintaining country-of-origin ties, financial records, and qualifications supports future flexibility.
Where to get help with UK immigration matters
Citizens Advice: a network of independent charities providing free, confidential and impartial advice across the UK. Local Citizens Advice offices handle immigration enquiries at level 1; specialist services in some locations cover more complex matters. The Citizens Advice website (citizensadvice.org.uk) has comprehensive guidance on UK immigration.
Joint Council for the Welfare of Immigrants (JCWI): an independent organisation campaigning for the rights of refugees, asylum seekers and migrants. JCWI provides advice, advocacy, and policy analysis on immigration matters. Their published guidance covers all major UK routes.
Migrant Help: works with people seeking asylum, victims of human trafficking, and others affected by immigration. Provides advice on UK immigration matters and works with the Home Office on asylum support arrangements.
Right to Remain: provides advice and resources for people navigating the UK immigration system. The Right to Remain Toolkit is a comprehensive online resource covering the main routes and procedures.
Free Movement: a leading immigration law blog providing updates and analysis on UK immigration. The site is widely used by practitioners and informed applicants for current developments.
Specialist immigration solicitors: handle the most complex matters. The Law Society's Find a Solicitor service lists firms specialising in immigration. The Immigration Law Practitioners' Association (ILPA) maintains a directory of member firms.
Disclaimer
This article provides general information about UK immigration, tax and consumer matters and is not legal, financial or tax advice. Rules, fees and thresholds change. Always check GOV.UK and the relevant UK regulator before acting, and consider taking professional advice tailored to individual circumstances.
Frequently asked questions
How long does it take to get a UK sponsor licence?
Standard service is typically 8 weeks. Priority service is about 10 working days for an additional fee. Allow more time at peak periods. Some employers apply months in advance of needing to issue CoS.
How much does a UK sponsor licence cost?
The licence application fee depends on whether the employer is small/charity or medium/large. Per-CoS fees and the Immigration Skills Charge are paid on each CoS issued. Current fees are published on GOV.UK and updated periodically.
Can a small business get a UK sponsor licence?
Yes. Small businesses (under a defined turnover or employee threshold under the Companies Act 2006 definitions) pay reduced fees and a reduced Immigration Skills Charge but must still meet the licence's HR and record-keeping requirements.
What happens if a sponsor licence is revoked?
All sponsored workers' visas are typically curtailed with a 60-day notice window. Workers in the UK must find a new sponsor, switch route or leave. The revoked employer is barred from holding a sponsor licence for a defined cooling-off period.
Can I sponsor my own family member on a Skilled Worker visa?
The route does not prohibit sponsoring family members but the role must be genuine, at the required skill level and paid at the going rate. Suspicions of sham employment are a key audit focus. Genuine roles for relatives are sponsored regularly but receive additional scrutiny.
Frequently asked questions
How long does it take to get a UK sponsor licence?
Standard service is typically 8 weeks. Priority service is about 10 working days for an additional fee. Allow more time at peak periods. Some employers apply months in advance of needing to issue CoS.
How much does a UK sponsor licence cost?
The licence application fee depends on whether the employer is small/charity or medium/large. Per-CoS fees and the Immigration Skills Charge are paid on each CoS issued. Current fees are published on GOV.UK and updated periodically.
Can a small business get a UK sponsor licence?
Yes. Small businesses (under a defined turnover or employee threshold under the Companies Act 2006 definitions) pay reduced fees and a reduced Immigration Skills Charge but must still meet the licence's HR and record-keeping requirements.
What happens if a sponsor licence is revoked?
All sponsored workers' visas are typically curtailed with a 60-day notice window. Workers in the UK must find a new sponsor, switch route or leave. The revoked employer is barred from holding a sponsor licence for a defined cooling-off period.
Can I sponsor my own family member on a Skilled Worker visa?
The route does not prohibit sponsoring family members but the role must be genuine, at the required skill level and paid at the going rate. Suspicions of sham employment are a key audit focus. Genuine roles for relatives are sponsored regularly but receive additional scrutiny.
Sources
- https://www.gov.uk/uk-visa-sponsorship-employers
- https://www.gov.uk/government/publications/workers-and-temporary-workers-guidance-for-sponsors-part-1-apply-for-a-licence
- https://www.gov.uk/government/publications/workers-and-temporary-workers-guidance-for-sponsors-part-2-sponsor-a-worker
- https://www.gov.uk/government/publications/workers-and-temporary-workers-guidance-for-sponsors-part-3-sponsor-duties-and-compliance
- https://www.gov.uk/uk-visa-sponsorship-fees