Once the Home Office approves your sponsor licence, a parallel set of ongoing legal obligations begins immediately. You must monitor, record, and report on your sponsored workers throughout their employment — and you must be able to demonstrate full compliance the moment a Home Office compliance officer walks through your door. Get it wrong and the consequences range from a licence downgrade to permanent revocation.

Who This Guide Is For

This article is written for employers — HR managers, operations directors, and business owners — who hold or are about to receive a UK sponsor licence under the Skilled Worker route or another points-based system route. It covers what you must do after approval, not the application process itself. If you are still at the application stage, see How to Apply for a UK Skilled Worker Sponsor Licence and the Sponsor Licence Application Documents Checklist 2026 first.

This guide is for general information only. Nothing here constitutes immigration legal advice. Where your situation involves eligibility questions or compliance risk, consult a licensed immigration solicitor or an OISC-regulated adviser.

What "Ongoing Compliance" Actually Means

The Home Office does not issue a sponsor licence and then leave you alone. The licence comes with a permanent obligation to behave as a "genuine, trustworthy" sponsor, as the UKVI guidance puts it. That obligation has three pillars:

  1. Record-keeping — maintaining specified documents for every sponsored worker.
  2. Reporting — notifying UKVI of defined trigger events within strict deadlines via the Sponsor Management System (SMS).
  3. Co-operation — engaging fully with Home Office compliance visits, audits, and information requests.

Failing any pillar can result in your A-rated licence being downgraded to a B-rating, suspended, or revoked. Revocation triggers curtailment notices for every worker you have sponsored, meaning they must leave the UK or regularise their status within a short window. The reputational and operational damage is severe.

The Sponsor Management System: Your Primary Compliance Tool

The Sponsor Management System (SMS) is the online portal through which all post-licence activity is managed. Your Level 1 User — the person named on your licence who has the highest administrative access — is responsible for keeping the SMS accurate at all times. This includes:

  • Assigning and managing Certificates of Sponsorship (CoS)
  • Reporting trigger events
  • Updating your organisation's details, such as address changes or changes to Key Personnel
  • Renewing your licence before it expires

Your Level 1 User access is tied to the individual named during your application. If that person leaves your organisation, you must update the SMS promptly — their departure is itself a reportable event. Train a back-up Level 1 User so that no single person's absence creates a compliance gap.

Key Personnel Roles

Your licence application will have named specific individuals in compliance roles. In 2026, the main roles are:

Role Responsibility
Authorising Officer Senior person accountable for the licence; usually a director or senior manager
Key Contact Main point of contact with the Home Office
Level 1 User Full SMS access; can assign CoS and file reports
Level 2 User Restricted SMS access; cannot assign CoS without Level 1 sign-off

All Key Personnel must be based in the UK, must not have unspent criminal convictions for relevant offences, and must not be listed on the UKVI's register of non-compliant organisations. If any Key Person's circumstances change — for example, they receive a criminal conviction — you must update UKVI without delay.

Record-Keeping: What You Must Keep and For How Long

The sponsor guidance specifies a list of documents you must hold for every sponsored worker. The list is detailed and exact — you cannot substitute one document type for another. At a minimum, for most Skilled Worker sponsored employees, you will need:

  • A copy of the worker's current passport (and any previous passports if relevant to their immigration history)
  • Their current UK visa or Biometric Residence Permit (BRP), or from late 2025 onwards, their eVisa reference and evidence of their digital immigration status
  • Their National Insurance number
  • Their contact details, including UK address, telephone number, and emergency contact
  • Evidence of any qualifications you relied upon to satisfy the role's skill requirements
  • Details of their work location(s)

All records must be kept for the duration of the worker's employment plus two years after they leave. Store them in a format — physical or electronic — that can be retrieved at short notice during a compliance visit. A disorganised filing system is not an excuse the Home Office accepts.

Right to Work Checks

Right to work checks are legally separate from sponsor compliance checks, but they overlap in practice. Before a sponsored worker starts employment, you must conduct a compliant right to work check. For workers with eVisas, this means using the Home Office online right to work checking service and retaining a dated record of the result. Do not rely on a physical BRP for workers whose status is held digitally — the online check is the required method.

Conducting a check incorrectly — for example, accepting an expired BRP without completing an online verification — provides no statutory excuse against a civil penalty. Civil penalties for employing someone without the right to work can reach significant sums per worker; verify the current penalty scale at gov.uk before onboarding any sponsored employee.

Reporting Duties: What to Report and When

This is where many sponsors fall down. The Home Office requires you to report certain events within defined timeframes. Missing a deadline is a breach in itself, even if the underlying event was entirely lawful.

Events Requiring Reporting Within 10 Working Days

  • A sponsored worker does not turn up for their first day of work
  • A sponsored worker's employment ends for any reason (resignation, dismissal, redundancy, end of fixed term)
  • A sponsored worker is absent from work without permission for more than 10 consecutive working days
  • A sponsored worker's salary drops below the level stated on their Certificate of Sponsorship
  • A sponsored worker changes their work location to one not listed on their CoS
  • You become aware that a sponsored worker is breaching their visa conditions

Events Requiring Reporting Within 20 Working Days

  • A significant change to your organisation's circumstances — for example, a merger, acquisition, change of ownership, or insolvency event
  • A change of your organisation's address or the addition of a new trading name

How to Report

All reports are made through the SMS. Log in, navigate to the relevant worker's record, and select the appropriate reporting reason. Keep a dated record of every report you file — a screenshot with a timestamp is the minimum. If the SMS is unavailable, the Home Office's sponsor support helpline should be contacted immediately so the attempt is documented.

Certificates of Sponsorship: Ongoing Obligations After Assignment

Assigning a Certificate of Sponsorship (CoS) is not the end of your responsibility for that worker — it is the beginning of a monitoring relationship. For a full explanation of the CoS process, see Certificate of Sponsorship Explained for Employers 2026.

After assigning a CoS, you must:

  • Ensure the worker's actual role, salary, and working hours remain consistent with what was stated on the CoS
  • Monitor the worker's visa expiry date and, if you want to continue employing them, either facilitate their renewal application or assign a new CoS in good time
  • Record any change to the worker's circumstances that might affect their visa compliance

When a Worker's Role Changes

If a sponsored worker is promoted to a role with a different Standard Occupational Classification (SOC) code, or if their salary drops below the required threshold for their visa category due to reduced hours or a pay restructure, you may be required to assign a new CoS and ask the worker to make a new visa application. Do not make significant role changes without first checking whether a new CoS is needed — the cost of getting this wrong is higher than the cost of getting advice.

The Immigration Skills Charge

The Immigration Skills Charge (ISC) is payable when you assign a CoS for the Skilled Worker or Senior or Specialist Worker routes. It is charged per year (or part year) of sponsorship and is paid upfront through the SMS when the CoS is assigned. The rate differs depending on whether your organisation qualifies as a small sponsor or charitable organisation, or whether it is classified as medium or large.

The ISC is non-refundable in most circumstances, including if the worker's visa application is refused or if they leave before the end of their sponsorship period. Factor this into your recruitment budgeting. For a full breakdown of licence and CoS fees, see UK Sponsor Licence Cost and Fees Breakdown 2026. Always verify the current ISC rate on the official gov.uk fee page before assigning a CoS, as rates are subject to change.

Important: No legitimate employer passes the Immigration Skills Charge, visa application fees, or any other immigration-related cost on to the sponsored worker as a condition of employment or repayment clause. Doing so is contrary to Home Office sponsor guidance and may constitute a breach of employment law. Workers should never pay for their own visa sponsorship.

Compliance Visits: What to Expect and How to Prepare

The Home Office conducts both announced and unannounced compliance visits. Compliance officers have the authority to inspect your premises, interview sponsored workers, and examine your HR systems and personnel files. You cannot refuse entry.

A typical compliance visit will examine:

  • Your right to work records for all sponsored workers
  • Whether your HR systems can identify when a sponsored worker's visa is due to expire
  • Whether your reporting history on the SMS is accurate and timely
  • Whether the work sponsored workers are doing matches what was stated on their CoS
  • Whether your Key Personnel are still appropriate and based in the UK

Practical Steps to Stay Audit-Ready

Create a compliance folder — physical or digital — for each sponsored worker that mirrors the Home Office's own document checklist. Conduct an internal mock audit at least once a year. Assign a named person (not just the Level 1 User) to own the compliance calendar, tracking visa expiry dates and reporting deadlines for every sponsored worker.

If you sponsor workers across multiple sites — common in sectors such as care, construction, or logistics — ensure that each site manager understands what to do if a compliance officer arrives. The Home Office has visited satellite sites without notifying the head office.

The 10 Most Common Compliance Mistakes (And How to Fix Them)

  1. Missing the 10-working-day reporting deadline when a sponsored worker leaves. Fix: build an automated alert into your HR system triggered by any leaver process for a sponsored employee.

  2. Failing to conduct an online right to work check for eVisa holders. Fix: update your onboarding checklist to specify the check type by visa status; train HR staff on the current Home Office online service.

  3. Allowing a sponsored worker's salary to fall below their CoS threshold due to a pay review error. Fix: tag sponsored workers in your payroll system so that any salary change triggers a compliance review before it is processed.

  4. Not updating the SMS when Key Personnel change roles or leave. Fix: include SMS updates in your HR offboarding checklist for all Key Personnel roles.

  5. Assuming that a sponsored worker doing some remote work from a different city does not need a new CoS. Fix: check the sponsor guidance on work location requirements before approving any change to a sponsored worker's regular work address.

  6. Failing to report an unauthorised absence until it becomes a termination. Fix: set a calendar reminder for day 10 of any unexplained absence; report to the SMS on that day regardless of whether the employment has formally ended.

  7. Keeping records in a format that cannot be retrieved quickly (scanned documents buried in generic folders). Fix: adopt a named folder structure per worker, mirroring the Home Office's document list, and test retrieval speed annually.

  8. Sponsoring a worker in a role that does not match the SOC code on their CoS. Fix: involve HR and the line manager in the CoS drafting process; do not let the CoS be completed solely by an administrator unfamiliar with the actual role.

  9. Not renewing the sponsor licence itself. Fix: the licence must be renewed periodically; diarise the renewal date 6 months in advance and begin the renewal process at least 3 months before expiry.

  10. Passing immigration costs to the worker. Fix: ensure your employment contracts and offer letters contain no clauses requiring workers to reimburse visa fees, ISC, or legal costs. If such clauses exist, take immediate legal advice.

Illustrative Example: A Mid-Sized Care Provider

The following is a worked illustrative example. All figures are fictional and for educational purposes only.

Greenfield Care Ltd employs 180 staff across four sites in the East Midlands. It holds an A-rated sponsor licence and currently sponsors 22 workers on the Skilled Worker route, primarily in care assistant and senior care roles. If you are hiring in this sector, see Care Assistant Jobs in the UK with Visa Sponsorship 2026 for context on the candidate market.

In March 2026, a sponsored worker at one of Greenfield's satellite sites fails to attend work. The site manager reports the absence to head office on day 8 — two days before the reporting deadline. The HR compliance lead logs into the SMS and files the report on day 9. Greenfield is within the window and records the filing with a timestamped screenshot.

In the same month, Greenfield promotes a sponsored care assistant to deputy manager. The HR team checks the SOC code: the care assistant role was sponsored under SOC 6145; the deputy manager role falls under SOC 1242. Because the SOC code changes and the new salary, while higher, needs to be verified against the current threshold for the new code, Greenfield's immigration solicitor advises that a new CoS is required and the worker must make a further leave to remain application. Greenfield assigns the new CoS and covers the ISC for the additional sponsorship period. The worker makes her application in time and continues working while it is considered.

This example illustrates why having a named compliance owner and an immigration solicitor on retainer matters: catching the SOC issue before the promotion takes effect costs far less than the alternative.

Licence Downgrade, Suspension, and Revocation: What Actually Happens

If the Home Office determines that you have breached your sponsor duties, the response is graduated but can escalate quickly.

B-rating (downgrade from A): You are placed on an action plan administered by a Home Office-appointed assessor. You pay for this assessor's time. You cannot assign new CoS until you return to an A-rating. This is disruptive but recoverable.

Suspension: Your licence is suspended while the Home Office investigates. You cannot assign new CoS. Existing sponsored workers are not immediately removed, but the investigation can lead to revocation. You will receive a notice of suspension with a deadline to respond. This is the stage at which you must engage a licensed immigration solicitor immediately — the response window is short and the consequences of a poor submission are severe.

Revocation: Your licence is permanently removed. The Home Office issues curtailment notices to all workers you have sponsored, typically giving them 60 days to leave the UK or regularise their status independently. Rebuilding trust with the Home Office after revocation is a long and uncertain process.

When to Take Professional Advice

This guide covers the structural framework of sponsor compliance, but the detail of any specific situation — a difficult leaver, a worker whose role has evolved organically, a compliance visit with unexpected findings — requires qualified advice. Use a licensed immigration solicitor or an OISC-regulated adviser (Level 3 immigration adviser) for:

  • Drafting or reviewing your internal compliance policy
  • Deciding whether a role change requires a new CoS
  • Responding to a Home Office notice of suspension
  • Reviewing your right to work check processes if you have any doubt about their validity
  • Any situation where the worker's continued right to remain in the UK is at stake

The Law Society's solicitor finder and the OISC's register of regulated advisers are both publicly searchable. Do not rely on unregulated "visa consultants" for compliance decisions.

A Note on Sector-Specific Context

Compliance duties apply equally across all sectors, but some industries — care, construction, hospitality, agriculture — face heightened Home Office scrutiny because they have historically been associated with immigration abuse by a minority of operators. If you operate in one of these sectors, the bar for your internal record-keeping should be correspondingly higher, and the frequency of your internal audits should reflect that risk.

For employers in roles where sponsored international recruitment is particularly active in 2026 — such as accountancy — the principles in this guide apply in full. See Accountant Jobs in the UK with Visa Sponsorship 2026 for sector context relevant to sponsors in that space.

Summary Checklist for Post-Approval Compliance

  • Maintain compliant records for every sponsored worker from day one
  • Conduct online right to work checks for all eVisa holders before employment starts
  • Report trigger events via the SMS within 10 working days (or 20 for organisational changes)
  • Keep all Key Personnel roles filled and up to date in the SMS
  • Monitor visa expiry dates for every sponsored worker and act before expiry
  • Do not make significant role changes without checking whether a new CoS is required
  • Conduct an internal mock compliance audit at least annually
  • Diarise your licence renewal date and begin the process at least 3 months before expiry
  • Never pass immigration costs to sponsored workers
  • Engage a licensed immigration solicitor for any situation that carries compliance risk

The Home Office publishes its sponsor guidance in full at gov.uk — the document is lengthy but the definitive source. No internal policy, consultant briefing, or third-party guide (including this one) overrides the published guidance. Read it, keep a copy, and update your internal processes whenever it changes.