Sponsor Licence Compliance in the UK After March 2026 (HC1691): Employer Checklist

Last reviewed: 17 May 2026

The Statement of Changes to the Immigration Rules published on 5 March 2026, known as HC1691, has reshaped sponsor licence compliance UK obligations for every organisation that employs overseas workers. New sponsor duties, mandatory digital pre-departure checks and stricter grounds for refusal took effect between 25 and 26 March 2026, with a further payroll-related change enforced from 8 April 2026. Employers that fail to adapt risk licence suspension, downgrading or outright revocation, outcomes that can halt international recruitment overnight. This article provides a practical, audit-ready checklist designed for HR directors, compliance managers and in-house counsel who need to translate the new immigration rules HC1691 into day-to-day operational processes.

Quick Summary: What Changed in March 2026 (HC1691) and Why Employers Must Act

HC1691 represents one of the most significant overhauls to the UK sponsorship framework in recent years. The Statement of Changes was laid before Parliament on 5 March 2026, with the majority of measures coming into force on 25–26 March 2026. A targeted payroll amendment followed on 8 April 2026. Below is a summary of the key changes every licence holder must understand.

• New and expanded sponsor duties. The Home Office introduced additional record-keeping and monitoring obligations, requiring sponsors to demonstrate active oversight of each migrant worker’s employment conditions, as set out in the updated Guidance for Sponsors Part 3.
• Digital pre-departure checks. Employers must now ensure that digital status verification is completed before certain sponsored workers travel to the UK, bringing employer responsibilities closer to those previously held only by carriers.
• Skilled worker changes. Tightened salary thresholds, role-eligibility criteria and, from 8 April 2026, a requirement that Skilled Workers be paid in monthly or less frequent pay periods.
• Stricter grounds for refusal. HC1691 broadened the circumstances under which the Home Office can refuse, curtail or cancel leave, and introduced additional triggers for compliance action against sponsors who fail to meet their duties.
• Settlement and ILR pathway adjustments. Changes to earned-settlement timelines and English-language requirements affect long-term workforce planning for sponsored employees.

Industry observers expect enforcement activity to intensify throughout the remainder of 2026 as the Home Office embeds these rules into its compliance-visit programme. The practical effect for employers is clear: reviewing and updating internal processes is no longer optional, it is an immediate operational priority.

At-a-Glance Sponsor Licence Checklist: Priority Actions in the First 30, 60 and 90 Days

Translating HC1691 into action requires a phased approach. The following sponsor licence checklist breaks the work into three time-bound stages, allowing compliance teams to prioritise the most urgent tasks while building longer-term resilience against audits and enforcement.

First 30 Days, Immediate Actions

• Circulate a compliance briefing. Notify every authorising officer, key contact and Level 1 user named on your sponsor licence of the HC1691 changes. Ensure they understand their personal responsibilities under the updated rules.
• Audit your Sponsorship Management System (SMS) access. Confirm that all named users still work for the organisation, that their contact details are current, and that leavers have been removed. The Home Office treats stale SMS records as an indicator of poor compliance.
• Review active Certificates of Sponsorship (CoS). Cross-reference every assigned CoS against the updated role-eligibility and salary requirements. Flag any assignments that fall below the new thresholds.
• Update right-to-work check procedures. Integrate digital pre-departure check requirements into your onboarding workflow for workers who have not yet arrived in the UK.
• Confirm payroll alignment. Speak to your payroll team or provider to verify that all Skilled Workers are paid in monthly (or less frequent) pay periods, effective from 8 April 2026.

Days 31–60, Operational Embedding

• Revise employment contracts. Ensure contracts for sponsored workers specify the correct pay frequency, job title matching the CoS, and the reporting obligations the employee owes to the employer.
• Build or update a reporting log. Create a centralised incident register to track every reportable event (see Reporting Obligations table below), including timestamps, SMS reference numbers and supporting evidence.
• Train HR and line managers. Deliver targeted training sessions covering new reporting triggers, digital check procedures and the consequences of non-compliance.
• Engage your immigration adviser. Commission a mock compliance audit to identify gaps before the Home Office visits. This is especially important for SMEs without dedicated immigration compliance teams.

Days 61–90, Policy and Audit Readiness

• Publish an updated immigration compliance policy. Document your organisation’s end-to-end process for sponsoring workers, from vacancy advertising through to leaver reporting.
• Test your document pack. Assemble a complete set of the documents the Home Office may request during a compliance visit (see the Document Pack table in the audit-preparation section below) and verify that every item is accessible within 24 hours.
• Schedule recurring reviews. Set quarterly calendar reminders to re-audit SMS records, payroll data and CoS usage against evolving Home Office guidance.
• Benchmark against HC1691. Use the detailed comparison table in the next section to confirm that every new obligation has a corresponding internal process.

Sponsor Duties After HC1691, Practical Steps to Meet Your Obligations

The updated Guidance for Sponsors Part 3 details the full scope of sponsor duties UK employers must discharge. Post-HC1691, these duties fall into four operational categories: record keeping, reporting, recruitment practices and internal auditing. Falling short in any one area can be enough to trigger enforcement action, so employer immigration compliance now demands a holistic, cross-functional approach.

Record Keeping and Document Retention

Sponsors must maintain up-to-date records for every migrant worker they employ. Since March 2026, the Home Office has emphasised that records must be not only accurate but also readily accessible, ideally within one working day of a request. Key records include copies of passports, biometric residence permits (or digital immigration status screenshots), employment contracts, job descriptions matching the CoS, payslips and evidence of right-to-work checks. Industry observers expect the Home Office to place particular emphasis on whether employers hold timestamped evidence of digital pre-departure checks for workers recruited from overseas after 25 March 2026.

Reporting Obligations and Example Reports

Sponsor reporting obligations have always been onerous, but HC1691 introduced additional triggers and shortened the window in which certain events must be reported via the SMS. The table below summarises the core reporting obligations, what must be reported and the expected timeline.

Each SMS report should be logged internally with a unique reference number, the name of the person who submitted it and any supporting correspondence. This internal reporting log is a critical piece of evidence during a compliance visit.

Recruitment and Advertising Requirements

Sponsors must be able to demonstrate that they conducted a genuine recruitment exercise, including advertising the role in accordance with the Resident Labour Market Test (where still applicable) or, for roles assigned under the Skilled Worker route, that the position meets the updated occupation code and salary criteria. Post-HC1691, the Home Office has signalled increased scrutiny of whether job titles on CoS documents align with the actual duties performed by the worker, a point highlighted by Bevan Brittan’s analysis of the changes. Employers should retain copies of job advertisements, shortlisting criteria and interview notes for a minimum of two years after the end of sponsorship.

Employer Internal Audit Checklist

A robust internal audit programme is the single most effective defence against enforcement action. At a minimum, quarterly internal audits should cover the following:

• CoS accuracy. Does every active CoS match the worker’s current job title, salary and location?
• SMS timeliness. Were all reportable events logged within the prescribed deadlines?
• Payroll alignment. Does payroll data confirm that each Skilled Worker received the correct salary in the correct pay frequency?
• Document completeness. Can the compliance team produce every required document within one working day?
• User access. Are all SMS users still employed and authorised?

The comparison table below maps the key post-HC1691 obligations to the practical evidence an employer should hold:

Digital Pre-Departure Checks and Carrier Responsibilities, What Employers Need to Know

One of the most operationally significant introductions under HC1691 is the formalisation of digital pre-departure checks. Previously, responsibility for verifying a traveller’s immigration status before boarding rested almost exclusively with carriers. The March 2026 changes now require employers to participate in pre-departure verification for certain categories of sponsored worker, particularly where the worker is being recruited from outside the UK and holds a digital-only immigration status, as outlined in the MSR Solicitors guide to digital compliance checks.

Step-by-Step for Remote Onboarding

1. Issue the CoS and confirm digital status. Once the CoS is assigned, instruct the worker to apply for their visa and share confirmation of their digital immigration status (eVisa).
2. Conduct a digital right-to-work check. Use the Home Office online checking service to verify the worker’s right to work before they travel. Save a dated screenshot or PDF of the result.
3. Confirm travel date and carrier details. Record the worker’s intended travel date and airline or carrier. If required, coordinate with the carrier’s advance passenger information system.
4. Log the pre-departure check internally. Record the date of verification, the name of the HR team member who completed it and the SMS reference linked to the CoS.
5. Repeat the right-to-work check on arrival. Complete a face-to-face or video right-to-work check on the worker’s first day, using the prescribed document list or the online checking service.

Sample Policy Language for Contracts and Recruit Communications

Employers should consider adding a clause to offer letters and employment contracts that requires the worker to cooperate with pre-departure verification. An example clause might read: “You agree to provide evidence of your digital immigration status and to participate in any pre-departure or right-to-work check required by the Home Office before travelling to the UK. Failure to cooperate may result in the withdrawal of your Certificate of Sponsorship.” This language protects the employer’s position and ensures the worker understands their obligations before travel.

Payroll, Salary and Payment Frequency Changes (Skilled Worker Updates)

Among the most discussed skilled worker changes introduced by HC1691 is the requirement, effective 8 April 2026, that Skilled Workers must be paid their required salary in monthly or less frequent pay periods. This seemingly straightforward rule has significant operational implications for employers who previously operated weekly or fortnightly payroll cycles for certain cohorts. The HC1691 explanatory memorandum makes clear that this change is designed to simplify Home Office salary-verification processes and reduce the risk of salary manipulation.

For employers, the key actions are as follows:

• Identify affected workers. Run a payroll report filtering for all Skilled Worker visa holders paid more frequently than monthly.
• Transition payroll cycles. Where weekly or fortnightly pay exists, work with your payroll provider to migrate affected workers to a monthly cycle. Ensure the transition does not create a gap in pay that could be misinterpreted as underpayment.
• Amend contracts. Update employment contracts to reflect the new pay frequency. Both employer and employee should sign the variation.
• Reconcile historical records. Retain copies of the old and new payroll arrangements, together with a brief explanation of the change. This evidence demonstrates proactive compliance if queried during an audit.
• Set up ongoing monitoring. Add a payroll-compliance checkpoint to your quarterly internal audit: confirm that every Skilled Worker’s most recent payslip reflects the required salary paid at the correct frequency.

A simple reconciliation process involves comparing the CoS-stated annual salary against the cumulative gross pay shown on the most recent payslip run, divided by the number of pay periods elapsed. Any shortfall should be investigated and rectified before the next scheduled payroll run.

New and Stricter Grounds for Refusal and Enforcement Risks, What Triggers Audits or Revocation

HC1691 expanded the grounds for refusal UK employers may encounter, both at the point of a new visa application and during the ongoing life of a sponsor licence. The Dac Beachcroft analysis identifies three broad risk categories: administrative non-compliance, suspected fraud and structural ineligibility. Understanding these categories is essential for any organisation seeking to maintain its sponsor licence UK status.

• Administrative non-compliance. Failure to report changes within prescribed timescales, inaccurate CoS data, stale SMS user records or missing right-to-work evidence. These issues are the most common triggers for compliance visits and can result in an action plan, a reduction in CoS allocation or licence downgrading.
• Suspected fraud or deception. Issuing a CoS for a role that does not genuinely exist, inflating salaries on paper while paying less in practice, or submitting false documents. These are treated as the most serious breaches and can lead to immediate licence revocation and referral for criminal investigation.
• Structural ineligibility. Operating from premises that do not meet the required standards, employing an authorising officer who is not suitably senior or using the sponsor licence for immigration purposes unconnected to genuine employment. These grounds were broadened under HC1691 to capture a wider range of organisational failings.

Examples and Anonymised Mini Case Studies

Industry observers report a pattern in recent enforcement actions that underscores the importance of day-to-day vigilance:

• Case A, delayed reporting. A mid-sized technology company failed to report via SMS that a Skilled Worker had been absent without authorisation for 15 consecutive working days. The Home Office discovered the gap during a routine compliance visit and imposed an action plan requiring the employer to report fortnightly on all absenteeism for the next 12 months.
• Case B, salary discrepancy. A hospitality employer listed a salary of £30,000 on the CoS but paid the worker weekly at a rate that annualised to £27,500 once unpaid training days were excluded. The licence was downgraded from an A-rating to a B-rating, triggering an action plan and a temporary freeze on new CoS allocations.
• Case C, stale SMS users. A healthcare provider’s authorising officer had left the organisation 18 months earlier but remained listed on the SMS. The Home Office treated this as evidence of inadequate compliance management and required the employer to undergo a full re-licensing process.

The consistent theme across all three scenarios is that the breach was avoidable. A structured internal audit programme, supported by the checklists in this article, is the most cost-effective way for employers to stay ahead of enforcement risk, as ClarksLegal’s 2026 audit guidance also recommends.

How to Prepare for a Home Office Sponsor Compliance Visit or Audit

Compliance visits can be announced or unannounced. In either scenario, preparation is key. The Home Office visiting officer will typically request a specific set of documents, interview the authorising officer and, in some cases, speak directly with sponsored workers. The following steps will help your organisation respond confidently.

1. Appoint a visit lead. Designate one person, usually the authorising officer or HR compliance lead, as the single point of contact for the visiting officer.
2. Assemble the document pack in advance. Do not wait for a visit notification. Keep a pre-built folder (digital and physical) containing the documents listed in the table below.
3. Brief relevant staff. Ensure line managers and sponsored workers understand that they may be asked questions about their role, duties and working conditions.
4. Prepare the premises. The visiting officer may inspect the workplace. Confirm that the sponsored worker is based at the location stated on the CoS and that the working environment matches the job description.
5. Record the outcome. After the visit, document any feedback, action points or requests. Set deadlines for remediation and track completion in your compliance log.

Employer Templates and Tools

Operationalising sponsor licence compliance UK requirements is significantly easier with standardised templates. The following tools are designed to sit alongside the Home Office’s own sponsorship guidance and provide a practical framework that HR and compliance teams can adopt immediately.

• SMS Reporting Log. A spreadsheet template with columns for event type, worker name, CoS reference, date reported, SMS reference number, reporting officer and supporting documents attached. Use one row per event and keep the log in a shared, access-controlled drive.
• Payroll Reconciliation Worksheet. A monthly checklist comparing each Skilled Worker’s CoS-stated salary against their actual gross pay, pay frequency and any deductions. Flags discrepancies for immediate investigation.
• Onboarding Checklist (Sponsored Workers). A step-by-step form covering CoS assignment, digital pre-departure check completion, right-to-work verification, contract issuance, IT/building access and first-day induction. Each step has a checkbox, a responsible-person field and a date-completed field.
• Compliance Visit Document Pack Index. A cover sheet listing every document in your audit-readiness folder, its location, the date it was last verified and the name of the custodian. Allows the visit lead to confirm completeness within minutes.
• Refusal Risk Register. A tracker for recording any sponsor-related refusal, curtailment or Home Office query, together with root-cause analysis and corrective actions taken. Useful for demonstrating a culture of continuous improvement if your licence is ever reviewed.

When to Get Legal Help, Referral and Escalation Matrix

Not every compliance question requires external legal advice, but there are clear trigger points at which engaging a specialist immigration solicitor is strongly advisable. Employers should escalate to legal counsel whenever any of the following situations arise:

• Receipt of a Home Office notification that a compliance visit is scheduled or that your licence is under review.
• Discovery of a material discrepancy, such as a salary shortfall or unreported leaver, that could constitute a breach of sponsor duties.
• A worker’s visa application has been refused and the refusal cites sponsor non-compliance as a factor.
• A structural change to the business (merger, acquisition, change of ownership or TUPE transfer) that affects the sponsor licence.
• Any allegation of fraud or deception connected to a CoS or sponsored worker.

Engaging specialist counsel early, rather than after enforcement action has begun, is almost always more cost-effective and dramatically improves outcomes. Employers seeking immigration law expertise can find an immigration lawyer through the Global Law Experts directory.

Conclusion

Sponsor licence compliance UK is no longer a background administrative task, it is a front-line operational responsibility that demands cross-functional coordination between HR, payroll, legal and line management. The March 2026 HC1691 changes have raised the compliance bar significantly, introducing digital pre-departure checks, stricter payroll rules and broader grounds for refusal that together create a more demanding environment for employers of overseas workers. Organisations that invest in structured checklists, standardised templates and regular internal audits will be best placed to retain their sponsor licence, avoid costly enforcement action and continue recruiting the international talent their business needs. Those that delay risk finding themselves on the wrong side of a compliance visit with no remediation plan in place.

Sources

1. GOV.UK, Explanatory Memorandum to HC1691 (Statement of Changes)
2. GOV.UK, Workers & Temporary Workers: Guidance for Sponsors Part 3 (Sponsor Duties & Compliance)
3. GOV.UK, Sponsorship Collection & Guidance Pages
4. Bevan Brittan, HC1691: Key Points for Sponsors
5. Free Movement, New Sponsor Compliance Duties
6. DavidsonMorris, Sponsor Licence Compliance Guide
7. Dac Beachcroft, March 2026 Statement of Changes & Sponsorship Updates
8. MSR Solicitors, Sponsor License & Digital Compliance Checks
9. ClarksLegal, Sponsor Licence Compliance in 2026: Increased Scrutiny, Increased Risk