Short answer
UK employment status is determined by the governing statute and the real working relationship, not the contract's chosen label. An employee works under a contract of employment and ordinarily shows personal service, sufficient mutual obligations, control and other features consistent with employment. The wider worker category includes employees plus individuals contracted to perform work personally for someone who is not genuinely their client or customer. A genuinely self-employed contractor operates an independent business serving clients.
Platform technology does not change the test. Tribunals examine who sets pay, allocates and monitors work, controls communication, imposes ratings or sanctions, bears commercial risk, supplies equipment, builds customer goodwill and permits substitution. The practical exercise of these powers matters. A genuine, workable right to send any qualified substitute can negate personal service; a narrow or sham clause may not.
Office-holders and agency workers require additional analysis. Holding an office does not automatically create a contract, but a person may also qualify for particular statutory rights. An agency assignment may involve contracts with the agency, hirer or neither as employer, while the Agency Workers Regulations confer separate equal-treatment rights. Employment-rights status, tax status and vicarious-liability status use different rules and can produce different answers.
Start with the right being claimed
There is no universal status for every legal purpose. distinguishes:
- an employee, working under a contract of employment; and
- a worker, which includes an employee and the “limb (b)” personal-work category.
Employees receive the fullest statutory package, including unfair-dismissal and redundancy rights subject to applicable conditions. Workers receive important minimum protections such as minimum wage, paid annual leave, working-time limits, protection from unlawful wage deductions and whistleblowing detriment. Some statutes define coverage differently. The uses a broad personal-work concept; health and safety, pensions and trade-union legislation have their own wording.
Tax law generally asks whether the engagement is employment or self-employment for tax. PAYE treatment, IR35 or a CEST result does not determine employment-rights status. The same person may be an employee in one engagement, a worker in another and self-employed in a third.
Employee status requires a contract of service
The classic employee inquiry considers the whole relationship. Necessary foundations generally include:
- an obligation to provide work or pay and a corresponding obligation personally to perform accepted work;
- a sufficient contractual right of control over what, how, when or where work is done; and
- terms and circumstances consistent overall with employment rather than an independent business.
Control need not be exercised continuously, especially for skilled work; the right or framework may suffice. Relevant indicators include integration, regular pay, benefits, equipment, financial risk, ability to profit through management, exclusivity, disciplinary power and responsibility for correcting defective work. None is a universal checklist score.
Casual work can produce an overarching contract, a series of employment contracts for accepted assignments, or only worker contracts. In , the Supreme Court held that sufficient mutual obligations and control can exist in individual match engagements even without an obligation to offer or accept future matches. The remaining multi-factor assessment was for the fact-finding tribunal.
Worker status focuses on personal service and dependency
Under limb (b), the individual must undertake personally to perform work or services for the other contracting party, unless that party is a client or customer of the individual's independent profession or business. This creates an intermediate category: not an employee, but not truly dealing with the engager at arm's length as a business client.
Personal service is defeated by a genuine, sufficiently broad substitution right. A conditional ability to swap shifts with approved colleagues, find a substitute only when unable to work or obtain consent may remain consistent with personal service. The tribunal tests the legal right and how it operates, including whether written terms are genuine.
Client/customer analysis considers control, bargaining power, integration, marketing to the world, customer ownership, pricing, risk and whether the individual has an independent business organisation. Working for several engagers is relevant but not conclusive; dependency can exist engagement by engagement.
Written terms cannot contract out of protective statutes
In , car valeters signed terms describing self-employment and substitution, but the tribunal could examine whether those provisions reflected the true agreement. The unequal bargaining position and practical relationship mattered.
went further by emphasising the protective statute rather than treating written terms as the starting point. The Court explained:
“the task for the tribunals and the courts is to determine whether the claimants fall within the definition of a ‘worker’”
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Uber set remuneration, dictated contractual terms, constrained drivers' choices, controlled acceptance through monitoring and ratings, and restricted customer relationships. Drivers were workers when logged into the app in their licensed territory and ready and willing to accept trips, subject to the findings about competing apps. The decision did not classify every platform worker; it applied the statute to that control structure.
Platform cases turn on operational architecture
A status audit should preserve app versions, click-wrap terms, algorithmic allocation, price-setting, cancellation rules, acceptance metrics, ratings, geolocation, communication restrictions, substitution use, insurance, equipment and the route for discipline or termination. “Freedom to log on” may show flexibility between assignments but says little about control while working.
In , Deliveroo riders did not fall within the relevant personal-service category for statutory recognition. The Central Arbitration Committee had found a genuine, virtually unlimited right of substitution that operated in practice. The Court also held that Article 11 did not require a different result on those facts.
“The personal service obligation is an essential feature of the relationship of employer and worker.”
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Uber and Deliveroo are therefore consistent: close platform control supported worker status in one; genuine substitution defeated personal service in the other.
Office-holders may have statutory protection without ordinary employment
An office is a position existing independently of its current holder, usually created by statute, constitution or organisational rules with attached duties. Directors, judges, elected officials and certain appointees may be office-holders. Appointment and remuneration alone do not prove a contract of employment; an office-holder may separately have a service contract.
In , a district judge was an office-holder without a contract and therefore outside the ordinary worker definition. Excluding her from whistleblowing protection nevertheless unjustifiably infringed Article 14 with Article 10, so the legislation was read compatibly to extend protection. Office-holder status thus does not answer each statutory question.
Part-time judicial office also generated protection in . For company directors, separately examine office duties, service agreements, shareholder control, tax and insolvency rules.
Agency work involves at least two relationships
An agency worker is supplied by a temporary work agency to work under a hirer's supervision and direction. Identify contracts and payment flows among individual, agency, umbrella company and hirer. Day-to-day control by the hirer does not automatically imply a contract of employment with it; implication must be necessary from the parties' conduct, not merely desirable to confer rights.
The apply in Great Britain. From day one they provide specified access to collective facilities and vacancy information. After the 12-week qualifying period in the same role, an agency worker generally receives equal basic working and employment conditions, including relevant pay, duration of working time, night work, rest and annual leave, subject to the regulations. Anti-avoidance arrangements can aggregate assignments. The agency and hirer have responsibilities based on their roles and information.
Northern Ireland has separate agency-worker regulations and tribunal terminology. Status and territorial scope should be checked rather than importing the Great Britain instrument.
Evidence and consequences
Status is decided by the employment tribunal or court on evidence. Useful material includes all contract versions, onboarding, rotas, invoices, payslips, app data, substitutions, communications, performance measures, discipline, insurance, equipment and accounts. Analyse each period: a changed substitution term or platform workflow may change status.
Misclassification can produce arrears of wages, holiday pay, minimum wage, tax and contributions, penalties and collective liabilities. As of April 2026 the Fair Work Agency performs consolidated state-enforcement functions in relevant areas, but tribunals remain responsible for individual status and rights claims. Limitation and ACAS early-conciliation rules are short; Northern Ireland uses the Labour Relations Agency and industrial tribunals.
Conclusion
UK status analysis starts with the statute and tests the real bargain. Employees require a contract of service; limb-(b) workers require personal service without a genuine client/customer relationship; self-employed contractors run independent businesses. Platform controls and substitution must be proved operationally. Office and agency arrangements add legal relationships rather than replacing the core tests, and tax classification remains separate. A reliable assessment maps each right, engagement period, contracting party and practical control feature before assigning a label.
Sources
This article provides general legal information, not advice for a specific matter. Laws, facts and procedural deadlines may change the result. Follow the linked primary sources and obtain local advice before acting.