UK Sponsor Licence Compliance for HR Directors and Employers

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OISC-regulated immigration advisors supporting UK businesses with sponsor licence compliance duties, right-to-work checks, CoS assignment management, and Home Office audit preparation.

For any UK business holding a sponsor licence, strict adherence to UK sponsor licence compliance is not a recommendation – it is a mandatory and continuous legal obligation. The Home Office expects every licensed sponsor to maintain robust systems for record-keeping, reporting via the Sponsor Management System (SMS), and cooperating with compliance visits. Failure to meet these duties can result in severe consequences, including sponsor licence suspension or revocation, civil penalties, and direct disruption to your international workforce. At Conroy Baker Ltd., our OISC-regulated immigration advisors in London provide proactive, end-to-end sponsor licence compliance support for HR Directors, Company Secretaries, and in-house legal teams across the UK.

If you hold the role of Authorising Officer, Key Contact, or Level 1 User within your organisation’s Sponsor Management System (SMS), the weight of UK sponsor licence compliance rests directly with you. The Home Office will assess the suitability and compliance of your organisation’s key personnel, including the Authorising Officer, Key Contact, and Level 1 Users, as well as those responsible for day-to-day immigration compliance within the business such as the HR directors and company secretaries. Understanding your obligations – and having expert support in place – is not optional.

This page is written specifically for HR professionals and company officers who manage sponsored workers on a daily basis. It covers every compliance duty your organisation must fulfil, including CoS assignment management, right-to-work checks, SMS reporting obligations, and Home Office audit preparation. If you arrived here from our homepage, you are in the right place.

A UK sponsor licence carries a clear and ongoing set of duties that extend well beyond the initial application. The Home Office monitors compliance continuously, and it can act at any time if a licensed sponsor falls short of its obligations.

Every licensed sponsor must maintain accurate and up-to-date records for each sponsored worker. These records must be readily accessible in the event of a Home Office compliance visit. Required documents include copies of passports and visas, Certificates of Sponsorship (CoS), employment contracts and job descriptions, salary payment evidence, attendance records, and UK contact details for each sponsored individual. Failure to maintain these records in the correct format is one of the most common reasons for sponsor licence downgrade or suspension.

Sponsors are required to report specific changes and events relating to their sponsored workers through the Sponsor Management System (SMS) within strict timeframes – typically 10 working days. Reportable events include a sponsored worker failing to start their role, being absent from work without authorisation for more than 10 consecutive working days, resigning or being dismissed, receiving a criminal conviction, or experiencing a change in job duties, salary, or work location that falls outside the parameters of their Certificate of Sponsorship. Our team at Conroy Baker Ltd. provides tailored SMS reporting guidance to ensure your organisation never misses a reportable event.

Beyond sponsor-specific duties, licensed employers must operate in full compliance with wider UK immigration law at all times. This includes verifying that every worker has the right to work in the UK before employment begins, and conducting follow-up right-to-work checks for workers on time-limited visas.

Licensed sponsors must cooperate fully with any Home Office request for information, documentation, or access during a compliance visit. Obstructing or delaying a Home Office compliance officer is treated as a serious breach and can trigger immediate licence suspension.

The Certificate of Sponsorship (CoS) is the digital record that authorises a specific worker to apply for a Skilled Worker Visa or other sponsored route. As an HR Director or Level 1 User, you are responsible for the accurate assignment, tracking, and management of all CoS records within your organisation.

To assign a CoS, you must log into the Sponsor Management System (SMS) and complete the assignment for the specific worker and role. The CoS must accurately reflect the job title, Standard Occupational Classification (SOC) code, salary, work location, and start date. Any inaccuracy at this stage is a direct compliance risk and can result in a visa refusal for the worker or a compliance flag against your sponsor licence.

Your organisation is responsible for monitoring all active CoS records and ensuring that sponsored workers remain employed in the role and at the salary stated on their CoS. If a worker moves to a different role, receives a pay increase that changes their visa compliance status, or leaves your employment, you must report and update the CoS accordingly via SMS.

Changes to a sponsored worker’s role, salary, or work location that exceed the permitted parameters of their original CoS must be reported to UKVI within 10 working days. In some cases, a new CoS assignment will be required. Our team provides ongoing CoS assignment compliance support so your HR function is never left managing this alone.

Right-to-work compliance is a parallel obligation that runs alongside your sponsor licence compliance duties. UK employers have a legal duty to check and verify the right to work of every individual before their employment begins – regardless of whether that person is sponsored or not. For sponsored workers, additional obligations apply.

For most workers, a manual right-to-work check involves reviewing original documents from List A or List B as defined by the Home Office. For a manual right-to-work check, the employer must be in physical possession of the original documents and verify them in the presence of the individual, either in person or via live video link. Where an online right-to-work check is used, the employer must access the Home Office service and confirm that the individual matches the photograph, either in person or via video call. Carrying out this check correctly provides a statutory excuse against a civil penalty in the event of an illegal working investigation.

Where a worker has an outstanding immigration application or appeal with the Home Office, their documents may not be sufficient on their own to evidence right to work. In these cases, you must use the Home Office Employer Checking Service (ECS) to obtain a Positive Verification Notice before allowing the individual to work. Employers may face civil penalties of up to £45,000 per illegal worker for a first breach, rising to up to £60,000 per worker for repeat breaches.

For time-limited visa holders – including Skilled Worker Visa holders – you must conduct a follow-up right-to-work check when their current leave expires. This follow-up check must be recorded and retained in the same way as the initial check. Our team can support your HR function in setting up compliant right-to-work check processes and reminder systems for expiry dates.

A Home Office compliance visit – also known as a sponsor audit – is one of the most significant events your organisation can face as a licensed sponsor. These visits can occur at any time, with or without advance notice, and they assess every aspect of your sponsor licence compliance against the Home Office’s published guidance.

In some cases, the Home Office will notify you in advance of an upcoming compliance visit. This gives you a limited window to ensure all records are in order, all Level 1 Users are briefed, and any outstanding reporting duties via SMS are completed. However, pre-arranged visits are not always the norm – particularly where there is an existing concern.

Unannounced compliance visits are increasingly common. In these cases, a Home Office compliance officer will arrive at your premises without notice. They will request access to records, interview key personnel, and assess whether your organisation is fulfilling its sponsor licence compliance duties. Being unprepared for an unannounced audit is one of the fastest routes to sponsor licence suspension.

Conroy Baker Ltd. provides comprehensive mock compliance audit preparation services. Our OISC-regulated advisors will conduct an internal review of your records, SMS management, and HR processes – identifying any weaknesses before the Home Office does. We then work with your team to remediate those gaps and ensure your organisation is audit-ready at all times.

The consequences of non-compliance are severe and can affect both your organisation and your sponsored workforce.

A licence downgrade from an A-rating to a B-rating restricts your ability to assign new Certificates of Sponsorship. A B-rated sponsor must agree to an action plan with the Home Office and demonstrate improvement within a specified period.

During a suspension, you cannot assign any new CoS or take on any new sponsored workers. Existing sponsored workers may also be affected. A suspension is often the precursor to a full revocation if issues are not resolved.

Revocation permanently removes your organisation’s ability to sponsor workers under the current licence. All existing sponsored workers will have their leave curtailed and will be required to leave the UK or find alternative sponsorship. Revocation is the most serious outcome of a sponsor licence compliance failure.

Employers who are found to have employed illegal workers – or who have failed right-to-work check obligations – can face civil penalties of up to £60,000 per worker. Serious cases can result in criminal prosecution for company directors and HR officers. OISC immigration compliance support from Conroy Baker Ltd. can help your organisation avoid both.

When a sponsor licence is revoked, sponsored employees have their leave curtailed – meaning their UK visa is cancelled and they must leave the UK within a short period (typically 60 days) unless they can obtain alternative sponsorship. This can cause significant harm to your workforce and your reputation as an employer.

Led by Hemang Laaheru, an OISC-registered advisor with over 15 years of experience in UK business immigration, Conroy Baker Ltd. provides specialist sponsor licence compliance support for HR Directors, Company Secretaries, and in-house legal teams across London and the UK.

Our comprehensive services include:

Pre-Audit Compliance Checks – Regular internal reviews of your SMS usage, record-keeping, and HR processes to identify and close compliance gaps before a Home Office visit.

Tailored SMS Reporting Guidance – Clear, role-specific advice for your Authorising Officer, Key Contact, and Level 1 Users on how to use the Sponsor Management System correctly and on time.

CoS Assignment Compliance Support  – Hands-on guidance for HR teams managing the full CoS lifecycle, from assignment to expiry and change reporting.

Right-to-Work Check Process Review – A full review of your existing right-to-work procedures and the implementation of a compliant, auditable system.

Key Personnel Training – Structured training sessions for all SMS users within your organisation, ensuring every individual with access to the Sponsor Management System understands their responsibilities.

Compliance Visit Preparation – Thorough mock audit preparation, including document reviews and guidance on how to interact with Home Office compliance officers.

Ongoing Legal Support – Up-to-date advice as Home Office guidance evolves, ensuring your organisation remains compliant even when rules change.

Defence Against Sanctions – Expert legal representation if your licence is suspended, downgraded, or revoked, or if you face civil penalties under the Immigration, Asylum and Nationality Act 2006.