Complete UK Right to Work Checks Guide 2024: Employer Compliance & Immigration Requirements

To comply with UK immigration law, every employer must verify that a prospective worker has the legal right to work in the United Kingdom before they undertake any employment duties. Conducting a compliant check in accordance with published Home Office guidance establishes a statutory excuse against civil penalties of up to £60,000 per illegal worker. Employers must use one of three prescribed verification routes: a manual document check, the Home Office online right to work checking service, or an Identity Service Provider utilising digital identity document verification technology.

The Statutory Framework and Civil Penalty Regime

Employment verification in the United Kingdom is governed primarily by Sections 15 to 25 of the Immigration, Asylum and Nationality Act 2006, as amended by the Immigration Act 2016. The law places a strict legal duty on all employers to prevent illegal working. Under this framework, an employer who hires an individual without permission to work in the UK commits a civil breach, and potentially a criminal offence, unless they can demonstrate they carried out a prescribed check prior to the start of employment.

The Statutory Excuse

A statutory excuse is an employer's legal defence against a civil penalty. It is established when an employer correctly verifies and records acceptable right to work documentation before an individual begins work. If an employee is later discovered to be working illegally despite having presented documentation that appeared genuine, the statutory excuse protects the business from financial penalties, provided the employer did not know the work was unauthorised.

A statutory excuse can be either continuous or time-limited:

• Continuous statutory excuse: Established when an employee provides acceptable documentation from List A (such as a British passport or evidence of Indefinite Leave to Remain). This lasts for the entire duration of the individual's employment, with no follow-up checks required.
• Time-limited statutory excuse: Established when an employee provides documentation from List B (such as a time-limited visa or a Positive Verification Notice). This excuse expires on the date the individual's immigration permission ends or after a specified statutory period, requiring a follow-up check before expiry.

Civil Penalties versus Criminal Offences

The Home Office distinguishes between civil non-compliance (negligence or process failures) and criminal wrongdoing (deliberate or knowing employment of illegal workers).

• Civil Liability (Section 15, Immigration, Asylum and Nationality Act 2006): Applies on a strict liability basis if an employer hires someone without right to work and fails to establish a statutory excuse. The employer is issued a Civil Penalty Notice.
• Criminal Liability (Section 21, Immigration, Asylum and Nationality Act 2006, as amended): An offence is committed if an employer knows, or has "reasonable cause to believe", that an employee does not have the right to work in the UK. This carries an unlimited fine and a custodial sentence of up to five years for company directors or managers involved.

Civil Penalty Tiers and Mitigation

The Home Office increased the civil penalty maximums significantly for breaches occurring on or after 13 February 2024. The penalty structure operates on a tiered system based on the employer's compliance history over the preceding three years.

If an employer can prove they conducted a compliant pre-employment check, the penalty is reduced to zero because the statutory excuse applies. Where a check was defective, the starting penalty applies, subject to the mitigation discounts detailed above.

The Three Prescribed Verification Methods

Employers must use the correct verification method corresponding to the employee's nationality and immigration documentation type. Carrying out a manual check when an online check is legally mandated does not confer a statutory excuse.

                          [ Prospective Employee ]
                                     |
        +----------------------------+----------------------------+
        |                                                         |
[ British or Irish Citizen ]                             [ Non-UK / Non-Irish National ]
        |                                                         |
   +----+----+                                              +-----+-----+
   |         |                                              |           |
[ Manual ] [ IDSP / IDVT ]                            [ eVisa / BRP / Status ] [ Paper List A/B ]
(Original  (Digital Identity                          (Home Office Online Check  (Original Manual Check
Passport)   Check)                                     via Share Code)            where permitted)

Method 1: Manual Physical Document Checks

Manual verification requires the employer to physically examine original documents in the presence of the document holder. This method is restricted to:

• British citizens holding UK passports or specific combinations of birth certificates and National Insurance evidence.
• Irish citizens holding Irish passports or passport cards.
• Individuals holding physical non-digital immigration documents, such as wet-ink passport endorsements, vignettes, or paper certificates of registration or naturalisation.

Crucial restriction: Since 6 April 2022, employers cannot use manual document checks for holders of Biometric Residence Permits (BRPs), Biometric Residence Cards (BRCs), or Frontier Worker Permits (FWPs). These individuals must be verified exclusively through the Home Office online right to work checking service. Retaining a physical copy of a BRP does not provide a statutory excuse.

Method 2: The Home Office Online Right to Work Checking Service

The online service is mandatory for anyone holding an electronic visa (eVisa), status under the EU Settlement Scheme (EUSS), a BRP, a BRC, or a digital Frontier Worker Permit.

The process requires two distinct actions:

1. The employee generates a share code: The individual logs into the GOV.UK "Prove your right to work to an employer" service and generates a 9-character alphanumeric share code. The share code begins with the letter "W" and is valid for 90 calendar days.
2. The employer verifies the share code: The employer must log into the separate employer-facing portal on GOV.UK ("View a job applicant's right to work details"). The employer enters the share code and the applicant's date of birth.

Viewing the profile directly on the official employer service produces the legal record. Simply viewing a screenshot, printout, or PDF supplied by the applicant does not establish a statutory excuse.

Method 3: Identity Service Providers (IDSPs) and Digital Identity Verification (IDVT)

Employers can use certified Identity Service Providers (IDSPs) to conduct digital right to work checks on British and Irish citizens who hold valid, in-date passports or passport cards.

• Technology framework: IDSPs use Identity Document Validation Technology (IDVT) aligned with the UK Digital Identity and Attributes Trust Framework (GPG 45).
• Required level of confidence: Employers must ensure the IDSP conducts checks to a Medium Level of Confidence or High Level of Confidence.
• Employer legal responsibility: The employer remains strictly liable for the check. To secure the statutory excuse, the employer must obtain the IDSP output report, confirm that the photograph and biographical details match the individual presenting themselves for work, and retain a secure copy of the verification output for the duration of employment plus two years.

IDSPs cannot be used for individuals who hold expired British or Irish passports, British nationality without citizenship, or any non-British/non-Irish immigration permissions.

Acceptable Document Lists: List A and List B Breakdown

When conducting manual checks, employers must ensure documents align precisely with the Home Office's published List A and List B criteria.

List A: Permanent Statutory Excuse Documents

Any document or specified combination of documents from List A confirms that the holder has no time limits on their stay in the UK. Once checked correctly prior to employment, no repeat checks are required throughout the individual's continuous employment.

1. UK Passport: A current or expired British passport showing that the holder is a British citizen or a citizen of the United Kingdom and Colonies having the right of abode in the UK.
2. Irish Passport: A current or expired Irish passport or Irish passport card showing the holder is an Irish citizen.
3. Crown Dependency Passport: A current or expired passport issued by Jersey, Guernsey, or the Isle of Man, endorsed to show the holder has the right of abode in the UK.
4. Immigration Status Document (Indefinite Leave): A current document issued by the Home Office confirming that the holder has Indefinite Leave to Remain, right of abode, or no time limit on their stay, when presented alongside an official document showing the person's permanent National Insurance number and name issued by a government agency or previous employer.
5. Birth or Adoption Certificate Combination: A full UK or Crown Dependency birth or adoption certificate specifying the names of at least one of the holder's parents, presented alongside an official document issued by a government agency or previous employer stating the holder's permanent National Insurance number and name.
6. Certificate of Registration or Naturalisation Combination: A certificate of registration or naturalisation as a British citizen, presented alongside an official document showing the holder's permanent National Insurance number and name.

Note on National Insurance numbers: A National Insurance number alone (such as an NI card, payslip, or P45/P60) never confers a statutory excuse on its own. It must be accompanied by the specified qualifying primary document.

List B: Time-Limited Statutory Excuse Documents

List B applies to individuals who have limited permission to enter or remain in the UK. These are separated into Group 1 and Group 2.

List B: Group 1

Documents providing a statutory excuse up to the expiry date of the individual's leave:

• Current Foreign Passport Endorsement: A current passport endorsed to show that the holder is allowed to stay in the UK and is currently allowed to do the type of work in question.
• Current Frontier Worker Permit: Verified online via the checking service.

List B: Group 2

Documents providing a temporary statutory excuse valid for six months from the date specified in the notice:

• Positive Verification Notice (PVN): Issued by the Home Office Employer Checking Service (ECS) when an employee has an outstanding, in-time application, administrative review, or appeal.
• Application Registration Card (ARC): Issued to an asylum seeker or appeal applicant stating that the holder is permitted to take employment, accompanied by an ECS Positive Verification Notice.
• Certificate of Application (CoA): Issued to an individual who made an application under the EU Settlement Scheme on or before 30 June 2021, or a valid late application, accompanied by an ECS Positive Verification Notice (unless the CoA can be verified digitally online).

Summary of Verification Routes and Statutory Excuse Durations

Step-by-Step Procedure: Conducting a Compliant Check

To establish a statutory excuse, employers must follow a rigid three-step process: Obtain, Check, and Record. Each step has distinct verification criteria that caseworkers and enforcement officers audit.

   +-------------------------------------------------------------+
   | Step 1: OBTAIN                                              |
   | - Original List A/B documents OR                            |
   | - 9-character share code + Date of Birth OR                 |
   | - IDSP identity verification submission                     |
   +-------------------------------------------------------------+
                                  |
                                  v
   +-------------------------------------------------------------+
   | Step 2: CHECK                                               |
   | - Verify presence (in-person or live video link)            |
   | - Inspect authenticity, photographs, DOB, names             |
   | - Verify visa permissions, hour caps, role limits           |
   +-------------------------------------------------------------+
                                  |
                                  v
   +-------------------------------------------------------------+
   | Step 3: RECORD & RETAIN                                     |
   | - Copy all relevant pages / Save online PDF profile         |
   | - Apply compliant date stamp: "Date check completed: DD/MM/YYYY" |
   | - Store securely: Retain during employment + 2 years        |
   +-------------------------------------------------------------+

Step 1: Obtain the Documents or Access Data

The check must be performed before the worker executes any contractual work or training. The employer must obtain:

• Original documents from List A or List B for manual checks; or
• A share code and the candidate's date of birth to access the online system; or
• An IDVT verification report from a certified IDSP.

Step 2: Check the Documentation

The employer must review the documentation in the physical presence of the employee or via a live video link where the physical document is in the employer's hands (for manual checks).

The employer must confirm:

1. Identity: Photographs and dates of birth match across documents and correspond with the physical appearance of the candidate.
2. Name consistency: Any name differences (such as due to marriage, civil partnership, or deed poll) are supported by primary documentation (marriage certificate, change of name deed).
3. Document integrity: Documents show no signs of tampering, substitution, page removal, or physical alteration.
4. Work restrictions: For List B holders, the visa conditions permit the specific role, working hours, and industry. For Student visas, ensure working hour limits (10 or 20 hours during term time) are not breached.

Step 3: Record and Retain Evidence

The employer must make an unalterable copy of the documentation and retain it securely (in electronic or hard copy format) for the duration of the individual's employment, plus an additional two years after the employment ends.

• Manual documents: Copy the front cover and any page containing the holder's personal details, photograph, nationality, date of birth, signature, leave expiry date, biometric details, and visa endorsements showing work conditions. For biometric passports, copy the biographical page.
• Online checks: Download and save the official PDF profile generated by the Home Office "View a job applicant's right to work details" portal. The document must display the candidate's photo, date of check, and work permissions.
• Date stamping requirement: The copy must be marked with the date the check was conducted. The Home Office recommends the following explicit phrasing: "The date on which this right to work check was made: [DD/MM/YYYY]". A date generated automatically by a document scanner or computer filing system without verification notation may not satisfy an enforcement officer during an audit.

Decision Points and Failure Pathways

                      [ Run Right to Work Check ]
                                   |
               +-------------------+-------------------+
               |                                       |
       [ Check Passes ]                        [ Check Fails ]
               |                                       |
   [ Retain Date-Stamped Record ]          [ Identify Failure Cause ]
               |                                       |
    [ Statutory Excuse Active ]       +----------------+----------------+
                                      |                                 |
                                [ Fraud/Tampering ]            [ Pending Application ]
                                      |                                 |
                               [ Cease Hiring / ]              [ Request ECS Check / ]
                               [ Terminate Work ]              [ Obtain PVN Notice ]

• Document appears forged: If an employer suspects fraud or document tampering, they must reject the document. Knowingly accepting a false document invalidates the statutory excuse and exposes the company to criminal charges under Section 21 of the 2006 Act.
• Share code returns "No right to work": The applicant cannot be permitted to work. If this is an existing employee undergoing a follow-up check, the employer must explore whether an in-time application was made before taking steps toward contractual termination.
• Work condition mismatch: If a candidate holds a visa limited to a specific occupation code or sponsor (such as a Skilled Worker visa sponsored by a different employer), they cannot start work on that visa, except under strict supplementary employment provisions.

Complex Employment Scenarios and Edge Cases

Standard recruitment workflows frequently encounter edge cases that require specialised compliance procedures.

Student Visa Holders: Term-Time Restrictions and Work Conditions

Students holding Student (formerly Tier 4) visas have strict legal limits on their right to work. A Student visa does not permit unrestricted employment.

• Permitted hours:
  • Degree-level study or above: Maximum 20 hours per week during term time.
  • Below degree-level study: Maximum 10 hours per week during term time.
  • Full-time work: Permitted only during official university vacation periods and after the official course completion date (for the remaining duration of the visa).
• Definition of a week: The Home Office defines a week strictly as "a period of 7 days starting on a Monday and ending on a Sunday". Employers and employees must calculate cumulative hours across all employers within this Monday-to-Sunday window.
• Mandatory supplementary evidence: To establish a statutory excuse for a student employee, the employer must obtain, check, and retain both the right to work share code confirmation and written evidence from the education sponsor confirming:
  1. The student's term and vacation dates for the specific academic year.
  2. The exact course dates.

Acceptable written evidence includes an official term date schedule published on the university website, a formal letter on institution letterhead, or an email directly from the university's academic registrar.

Prohibited student work: Students cannot be self-employed, engage in business activity, fill a permanent full-time vacancy (except during the transition period between course completion and a Skilled Worker application under specific rules), work as a professional sportsperson or sports coach, or work as an entertainer.

Section 3C Leave and Pending Home Office Applications

Under Section 3C of the Immigration Act 1971, an individual's existing immigration leave and associated work rights are automatically extended if they make an in-time application to extend or vary their visa before their current leave expires.

• The verification challenge: While Section 3C leave is active, the applicant's existing physical or digital status will appear expired. The applicant cannot generate a normal online share code showing an active visa.
• The ECS solution: Employers must submit a request to the Home Office Employer Checking Service (ECS). The employer must input the applicant's Home Office reference number or unique application number (UAN).
• Positive Verification Notice: If the application is confirmed as pending and in-time, the ECS issues a Positive Verification Notice (PVN). The PVN grants a time-limited statutory excuse for exactly six months from the date of the notice.
• Follow-up obligation: Before the six-month PVN expires, the employer must conduct a fresh right to work check. If the visa has been granted, an online check must be completed. If the application or an administrative review is still pending, a new ECS check must be submitted.

The 28-Day Rule for Expired Leave

There is no general grace period allowing an employee to work if their visa has expired without an in-time application. If an employee's leave expires and no application was submitted prior to the expiry date, their right to work ceases immediately. Section 3C does not apply to late applications unless the Home Office exercises discretion to accept the late application, which is confirmed only if an ECS check returns a PVN.

Business Transfers Under TUPE

When a business or service contract is transferred under the Transfer of Undertakings (Protection of Employment) Regulations 2006 (TUPE), the transferee employer inherits the employment liabilities of the transferor.

• The 60-day statutory grace period: Transferee employers are granted a statutory grace period of 60 calendar days from the date of the transfer to conduct fresh right to work checks on all newly acquired employees.
• Inherited checks: If the transferor employer performed compliant checks, the statutory excuse transfers. However, if the prior employer failed to conduct compliant checks, the transferee employer becomes liable for civil penalties if an employee is working illegally. Employers should always use the 60-day grace period to re-verify every transferred individual under current compliance standards.
• No extensions: The 60-day window cannot be extended. Any transferred employee who has not undergone a compliant right to work check by the 60th calendar day creates an immediate compliance exposure.

Remote Workers, Overseas Employees, and Cross-Border Working

Right to work checks are legally required for any individual physically performing work within the United Kingdom, regardless of company domicile or contract type.

• Workers physically outside the UK: An individual living and working wholly outside the UK (with no duties performed on UK soil) is not subject to UK immigration control. An employer is not required under the Immigration, Asylum and Nationality Act 2006 to establish a statutory excuse for fully overseas staff. However, local tax, employment, and immigration laws in the worker's host country will apply.
• Remote workers located in the UK: A worker residing in the UK and carrying out duties remotely for a UK or overseas entity must hold valid UK right to work permissions. Employers must perform standard pre-employment verification before remote duties begin.

Sponsoring Skilled Workers vs Non-Sponsored Roles

Hiring an individual under the Skilled Worker route involves dual compliance obligations: right to work compliance and sponsor licence compliance under the Worker and Temporary Worker guidance.

• Role restriction: A Skilled Worker's right to work is strictly tied to the occupation code, salary level, and employer entity listed on their Certificate of Sponsorship (CoS).
• Supplementary employment: A Skilled Worker can undertake supplementary employment without notifying the Home Office, provided that the supplementary work meets all of the following conditions:
  1. It is in an eligible occupation code listed in Appendix Skilled Occupations or on the Immigration Salary List.
  2. It does not exceed 20 hours per week.
  3. It takes place outside the working hours contracted under their sponsored employment.
  4. The employee remains working in their primary sponsored job.

An employer hiring a supplementary worker must perform a full right to work check, obtain a letter from the primary sponsor confirming the worker's standard hours, and obtain a written statement from the worker confirming their secondary hours do not conflict with their primary duties.

Voluntary Workers, Interns, and Self-Employed Contractors

• Volunteers: Genuine volunteers (who receive only reasonable out-of-pocket expenses and have no contractual obligation to attend work) do not fall under the statutory definition of an employee or worker. Right to work checks are not mandatory, though many organisations perform them as best practice.
• Voluntary workers and unpaid interns: If an individual receives remuneration, benefits in kind, or has contractual obligations (such as fixed hours or duties), they are legally classified as a "worker". Standard right to work checks are mandatory before they commence tasks.
• Self-employed independent contractors: Genuine business-to-business self-employed contractors do not trigger employer statutory excuse obligations under Section 15. However, if HMRC or an employment tribunal reclassifies the contractor as a worker or employee, the lack of a pre-engagement right to work check leaves the business exposed to civil penalties. Establishing right to work verification at the point of onboarding contractors is an effective risk mitigation practice.

The Transition to eVisas

The Home Office is replacing physical immigration documents (including BRPs, BRCs, and passport vignettes) with digital records called eVisas. All legacy physical BRP cards were issued with a maximum expiry date of 31 December 2024, regardless of the individual's actual underlying leave duration.

• Evidencing status: Holders of BRPs must create a UK Visas and Immigration (UKVI) account to access their digital eVisa profile.
• Checking validity: Employers must verify eVisa status using the online checking portal. The online system outputs the candidate's actual leave expiry date, which overrides the calendar date shown on the physical BRP.
• No physical renewals: Employers must not request a renewed physical card from workers whose underlying leave extends beyond 2024. Verification must be completed using the online share code system.

Common Compliance Traps and Refusal Triggers

Home Office audits frequently expose standard administrative failures that invalidate an employer's statutory excuse. The table and detailed triggers below highlight critical errors.

Primary Procedural Defects

1. Conducting checks post-commencement: A right to work check conducted on Day 1 after the worker has started their shift, or any day thereafter, is legally invalid. The statutory excuse only applies if the check was completed prior to the employee commencing work.
2. Accepting candidate-facing share code screens: Employers who accept a PDF, screenshot, or printout presented by the candidate via the "Prove your right to work" service do not hold a statutory excuse. The check is only valid if the employer accessed the separate "View a job applicant's right to work" portal directly.
3. Accepting expired List B documents: Unlike List A British and Irish passports, which can be accepted when expired, non-British and non-Irish travel documents containing visa stamps or vignettes must be strictly current and valid at the time of the check.
4. Failing to date-stamp documentation: Archiving a document copy without an explicit, verifiable date notation confirming when the physical check took place voids the statutory excuse during an inspection.
5. Neglecting List B follow-up checks: Allowing an employee's time-limited visa to expire without conducting a re-verification check prior to the expiry date results in immediate loss of the statutory excuse and establishes civil liability.

Discrimination Traps Under the Equality Act 2010

While enforcing immigration compliance, employers must avoid race, nationality, or ethnic origin discrimination under the Equality Act 2010. The Home Office publishes a statutory "Code of practice for employers: Avoiding unlawful discrimination while preventing illegal working".

• Universal checking policy: Employers must conduct right to work checks across 100% of prospective employees. Assuming that an applicant with a British-sounding name or UK accent does not need a check is direct racial discrimination.
• Mandating specific document formats: Employers must not reject an applicant because they present acceptable List A paper documents instead of a digital share code, or vice versa. An employer cannot demand that a British citizen use an IDSP if the citizen prefers to provide a physical passport for a manual check.
• Refusing job offers prematurely: Employers must not refuse to hire an individual simply because their immigration leave is time-limited (List B). If the candidate has the legal right to work at the point of recruitment, refusing employment on the basis of a future expiry date constitutes unlawful indirect discrimination.

What Home Office Inspectors Look For During Audits

The Home Office Immigration Compliance and Enforcement (ICE) team and Sponsor Compliance units conduct announced and unannounced inspections. When investigating right to work compliance, caseworkers examine specific evidence.

+-------------------------------------------------------------------------+
|                   HOME OFFICE AUDIT FOCUS AREAS                         |
+-------------------------------------------------------------------------+
| 1. Chronology:       Timestamp vs Offer Date vs First Work / Payroll    |
| 2. Verification:     Presence proof (In-person / Live video logs)       |
| 3. Copy Quality:     Legible biographical data, photos, endorsements    |
| 4. Endorsement Match: Role, SOC code, and weekly hours match parameters |
| 5. Calendar System:  Automated alerts active for List B follow-ups      |
| 6. Systemic Process: Documented, non-discriminatory universal policy    |
+-------------------------------------------------------------------------+

Responding to an Illegal Working Notice or Information Request

If the Home Office suspects illegal working within an organisation, it initiates formal enforcement steps:

1. Request for Information (RFI): The employer is issued an information request regarding named individuals, requiring production of the original date-stamped copies and proof of verification within a specified response window (usually 10 to 14 days).
2. Civil Penalty Notice (CPN): If the evidence provided does not substantiate a statutory excuse, the Home Office issues a formal CPN detailing the assessed fine per worker and setting a 28-day response deadline.
3. Form PN2 (Notice of Objection): If the employer disputes the penalty, they must lodge a formal objection within 28 days using Form PN2. The grounds for objection are:
   • The employer is not liable (for example, the individual was not an employee or already had right to work);
   • The employer has established a valid statutory excuse;
   • The penalty amount was miscalculated under published mitigation guidance.
4. County Court Appeal: If the objection is dismissed or the penalty upheld, the employer may lodge an appeal with the County Court within 28 days of the objection outcome notice.

Practical Next Steps for Employers

To ensure complete compliance with UK right to work requirements, employers should audit their internal systems immediately:

• Audit current personnel files: Review existing employee records to confirm every worker has a date-stamped right to work document on file, distinguishing clearly between List A (permanent) and List B (time-limited) permissions.
• Update recruitment onboarding protocols: Ensure that offer letters and employment contracts state clearly that commencement of work is conditional upon completing a verified right to work check before the first day of employment.
• Implement an expiration diary system: Establish automated calendar reminders at 90, 60, and 30 days prior to the expiration of any List B employee visas or Positive Verification Notices.
• Train HR and hiring managers: Provide targeted training on the distinction between the applicant-facing and employer-facing GOV.UK portals, the correct verification of student term dates, and the mandatory digital checking rules for biometric status holders.

Reviewed by Wesbridge Associates team on 31 August 2026. We check our published guidance against GOV.UK and current Home Office rules.

Frequently asked questions

Common questions on this topic, answered by our advisers.

What happens if I hire someone with an expired UK visa?

Can I accept a Biometric Residence Permit as proof of right to work in 2024?

How do I verify EU nationals' right to work after Brexit?

What's the difference between List A and List B documents?

Do I need to check British citizens' right to work?

How long before visa expiry should I conduct follow-up checks?

Can I employ someone remotely without seeing their documents in person?