What are your key sponsorship duties as a UK licence holder?
Holding a UK sponsor licence requires continuous compliance with strict Home Office obligations, including record-keeping, reporting, and monitoring. Key duties include retaining Appendix D documents for all sponsored employees, reporting mandatory changes via the Sponsor Management System (SMS) within 10 working days, and conducting compliant right-to-work checks.
Being granted a sponsor licence is not a one-off approval. Sponsor licence holders must maintain ongoing compliance across five primary areas throughout the lifetime of their licence:
- Record-Keeping duties (Appendix D): Maintaining accurate, up-to-date records for all sponsored workers, including right-to-work checks, identification documents, contracts of employment, salary and payroll records, and detailed absence logs.
- Reporting duties: Reporting relevant changes via the Sponsor Management System (SMS) within statutory deadlines (typically 10 working days). This includes changes to company structure, work locations, sponsored worker duties or salary, and employment termination.
- Compliance and monitoring: Monitoring sponsored workers’ immigration status, visa expiry dates, and attendance, ensuring salary thresholds and pay-period rules are continuously met, and preventing illegal working.
- Recruitment and role eligibility: Ensuring that every sponsored position represents a genuine, eligible role that matches the correct SOC (Standard Occupational Classification) code and salary threshold.
- Key Personnel: Keeping details of Authorising Officers, Key Contacts, and Level 1 Users up to date on the SMS.
Failure to meet these obligations can result in licence suspension or immediate revocation.
What happens during an unannounced Home Office compliance visit?
During an unannounced compliance visit, Home Office compliance officers inspect business premises without prior warning to verify that operating practices match declared records. Officers will review a minimum sample of sponsored worker files (at least 10%), inspect payroll records, inspect physical working environments, and conduct unscripted interviews with Key Personnel and sponsored workers.
The Home Office revoked over 3,000 UK sponsor licences in 2025, driven by tighter compliance scrutiny and automated cross-matching between UKVI and HMRC payroll data.
Compliance officers conduct visits to determine whether a business maintains a genuine trading presence and adheres to statutory obligations. During an audit, officers routinely:
- Audit Personnel Files: Re-perform right-to-work checks and verify Appendix D document retention on sampled worker files.
- Reconcile Salaries: Compare historical payroll data against the minimum salary requirements specified on Assigned Certificates of Sponsorship (CoS).
- Conduct Direct Interviews: Interview sponsored workers and Key Personnel (Authorising Officer, Level 1 Users) to ensure actual day-to-day job duties align with the CoS.
Major vs. minor Sponsor Licence breaches: summary table
During compliance audits, the Home Office categorises compliance failures based on severity:
| Breach Classification | Legal Definition & Impact | Common Examples |
| Major Breaches | Serious failures that undermine immigration control, involve illegal working, or indicate deliberate non-compliance. Results in licence suspension or revocation. | • Non-genuine vacancies / inflated job titles • Underpaying sponsored workers below CoS thresholds • Employing illegal workers / failing RTW checks • Unreported changes in business ownership |
| Minor Breaches | Less serious administrative errors or procedural failures that may indicate weaknesses in compliance management. These can still lead to enforcement action if not addressed. | • Missing reporting deadlines on the SMS • Minor gaps in Appendix D record-keeping • Inadequate or informal absence-tracking systems • Outdated contact details for Key Personnel |
Even minor, unintentional oversights can trigger an extended Home Office investigation if multiple administrative errors are discovered.
How can employers prepare for a Sponsor Licence audit?
Employers prepare for Home Office compliance audits by conducting internal mock audits, reviewing HR record-keeping systems, and training key personnel. Maintaining audit-ready sponsored worker files and updating the SMS in real time ensures businesses can demonstrate full compliance during unannounced inspections.
Preparation should not be treated as a reactive exercise. To maintain an audit-ready state, sponsor licence holders should implement four core compliance safeguards:
- Maintain accurate records: Ensure all sponsored worker files contain current right-to-work verification, signed contracts, salary slips, and clear absence records. (See our comprehensive guide on UK Right to Work Checks).
- Train Key Personnel & HR teams: Ensure your Authorising Officer, Key Contact, and Level 1 Users understand their statutory duties and SMS reporting triggers.
- Conduct mock compliance audits: Periodically sample worker files and payroll records to identify record gaps, role mismatches, or salary underpayments before Home Office inspectors arrive.
- Audit supply chains & subcontractors: Verify that contractors and third-party workers operate under compliant right-to-work frameworks.
How Bridge Partners can help
At Bridge Partners, we help businesses navigate complex Home Office immigration rules, prepare for compliance audits, and minimise the risk of sponsor licence suspension or revocation. From licence application reviews to ongoing risk management, our business immigration specialists provide tailored legal support:
- Mock compliance audits
- Sponsored worker file reviews and process improvements
- Training for HR teams and key personnel
- Ongoing sponsor compliance support
Our aim is to help you remain compliant, audit-ready and confident in meeting your sponsorship obligations.
Frequently Asked Questions
Q: Can the Home Office visit our business premises without prior warning?
A: Yes. Home Office compliance officers have the statutory power to conduct unannounced compliance visits at any registered work location or third-party client site where sponsored workers are based.
Q: What happens if our sponsor licence is suspended following an audit?
A: If your licence is suspended, you cannot assign new Certificates of Sponsorship (CoS), and your business will be given 20 working days to respond to the Home Office’s statement of written reasons. Immediate legal intervention is required to prevent full revocation.
Q: Can a business appeal a sponsor licence revocation?
A: There is no statutory right of appeal against a Home Office decision to revoke a sponsor licence. The only legal remedy is challenging the decision via Judicial Review or submitting a formal re-application after a mandatory cooling-off period (typically 12 to 24 months).
