Moon Fish: High Court Quashes a Sponsor Licence Revocation

A Home Office decision to revoke a sponsor licence may have serious consequences for a business and the workers it sponsors. But even where UKVI believes a breach requires revocation, it must still follow a fair process and properly assess the facts.

In R (Moon Fish Ltd) v Secretary of State for the Home Department [2026] EWHC 2289 (Admin), the High Court quashed a sponsor licence revocation after finding that the Home Office had not given the company a fair opportunity to answer the specific concerns relied on. The Court also found that the Secretary of State had misdirected herself about the relevant sponsor guidance.

The judgment was handed down on 4 September 2026 and was reported on 7 October. It is a reminder that sponsors should respond carefully to compliance concerns, and that a sponsor licence revocation appeal may not be the right legal description or route when a decision needs to be challenged.

Read the judgment and case commentary.

What happened in Moon Fish?

Moon Fish Ltd sponsored three workers. In October 2025, UKVI asked the company for employment and salary records. The company provided the documents, which showed that one worker had received £3,560.51 less than the salary recorded on his Certificate of Sponsorship.

The difference arose because the worker had taken about eight weeks of unpaid compassionate leave. Although the leave and reduced pay were lawful, the company had not reported the extended absence to the Home Office. The Court accepted that this was a breach of the sponsor’s reporting duties.

The Home Office treated the lower payment, together with the failure to report the absence, as triggering a mandatory revocation ground under the sponsor guidance. It revoked the licence without first putting its specific case to Moon Fish.

Why did the Court quash the revocation?

The Court found two important problems with the decision.

First, Moon Fish had not been given a fair chance to respond. The general request for documents and references to salary compliance did not clearly tell the company which worker’s pay was in issue, how UKVI viewed the unpaid leave, or that the information might lead to revocation.

The Court held that, ordinarily, a sponsor should be told the substance of the concerns, or the “essential charges”, and given a reasonable opportunity to make representations before its licence is revoked. That opportunity should allow the sponsor to address not only whether a breach occurred, but also its seriousness and any relevant mitigation.

Second, the Home Office misinterpreted the guidance. The Court considered whether a lawful, temporary reduction in payments due to unpaid leave necessarily amounted to a change in salary for the relevant mandatory revocation ground. It concluded that the Secretary of State had applied the guidance too broadly.

Moon Fish does not mean that unpaid leave, salary discrepancies or reporting failures can be ignored. The company had breached its reporting duties. The decision is instead about the need to identify the correct rule, examine the circumstances and give the sponsor a fair opportunity to answer the case.

What procedural fairness means for sponsors

The precise process depends on the circumstances and the letter UKVI sends. But the practical principles from Moon Fish are clear:

• The concerns should be specific. A sponsor needs enough detail to understand what UKVI says happened, which worker or records are involved and what requirement may have been breached.
• There should be a meaningful opportunity to respond. A sponsor should have a reasonable chance to provide an explanation, documents and relevant context before a final decision is made.
• The response should address the substance of the allegations. It may be necessary to explain why payments differed from a Certificate of Sponsorship, whether leave was authorised, what reporting was completed and when, and what steps have been taken to correct any shortfall.
• Relevant mitigation should not be overlooked. The sponsor may need to explain the nature and duration of the issue, how it arose, whether it was repeated, and what controls have been introduced to prevent recurrence.

A sponsor should not assume that a general compliance visit or document request amounts to notice of every concern UKVI may later rely on. Equally, it should not assume that a procedural argument will erase an actual breach. The facts and records still matter.

What if the Home Office gives you a response window?

Where UKVI suspends a licence and invites representations, take the deadline in the letter seriously. The published Compliance Casework guidance describes the representations process, including the usual response period in applicable cases. Check the current guidance and your own notice: the deadline and procedure may depend on the circumstances, and any request for an extension should be made promptly with reasons.

Use the response window to deal with each allegation directly. Organise the evidence so it is easy to follow, identify any factual or legal disagreement, and explain the steps taken to remedy a problem. If UKVI’s letter does not make the concern clear, consider asking for clarification while still working to meet the deadline.

Human rights considerations may also be relevant to the wider consequences of revocation, particularly for sponsored workers and their families. But Moon Fish is principally a decision about procedural fairness in the sponsor-licence process; it does not establish that every revocation requires a separate hearing on each worker’s Article 8 circumstances. The position of individual workers may require separate advice. In R (Pathan) v Secretary of State, the Supreme Court considered the importance of procedural fairness where a sponsor’s licence withdrawal could affect a worker’s immigration application. The legal issues are distinct, but the case underlines why the effects on workers should not be treated as irrelevant.

What to do after a compliance visit or revocation letter

If a Home Office visit or letter raises discrepancies, take these steps promptly:

1. Keep the correspondence and note deadlines. Record when the letter was received, what it says you must do and any response date.
2. Preserve the relevant records. This may include payroll and timesheet data, contracts, absence records, communications with the worker, right-to-work records and SMS reporting history.
3. Check the allegation against the documents. Identify the exact worker, period, salary or reporting duty at issue. Do not rely on assumptions about what UKVI means.
4. Prepare a factual, evidenced response. Explain the timeline, provide supporting documents and acknowledge any genuine breach. If you disagree with UKVI’s interpretation, explain why.
5. Address corrective action. Set out what you have done to resolve the issue and how your organisation will reduce the risk of it happening again.
6. Get advice before the deadline where possible. A response can affect the outcome and the options available if the Home Office makes a final decision.

For a structured compliance review, see our sponsor licence self-audit checklist and our article on the new SMS rules. If a separate Certificate of Sponsorship issue is involved, our guide to what to do when a CoS is refused covers that topic.

Is a sponsor licence revocation appeal the right route?

The word “appeal” is often used informally, but a sponsor may not have a standard appeal route against a revocation decision. Depending on the facts, the available options may include making representations within the Home Office process or challenging the decision by judicial review.

Judicial review may be relevant where, for example, the decision was procedurally unfair, the Home Office misunderstood or misapplied its guidance, or it failed to take relevant matters into account. Moon Fish illustrates how those issues can arise, but it does not mean that every revocation can be overturned. A challenge depends on the decision, the evidence, the applicable rules and the steps already taken.

Time limits can be strict. If your licence has been suspended or revoked, seek legal advice urgently rather than waiting for the effects on recruitment or sponsored workers to become more difficult to manage.

Practical support for sponsors

Moon Fish is a significant reminder that the Home Office must give sponsors a fair opportunity to answer specific allegations before revocation in the circumstances described by the Court. It is not a licence to disregard reporting or record-keeping duties. Sponsors should respond carefully, preserve evidence and take compliance concerns seriously from the outset.

Tyndel Solicitors advises employers on sponsor licence compliance, Home Office visits, representations and challenges to immigration decisions. Visit our immigration law service page to learn more.

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If your organisation has received a compliance letter, suspension notice or sponsor licence revocation decision, contact Tyndel Solicitors to discuss your options.

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