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Agency Worker Rights in the UK: The 12-Week Rule Explained

Your rights as a UK agency worker under the Agency Workers Regulations 2010 — day-one rights, the 12-week qualifying period for equal pay and holiday, the end of the Swedish derogation, umbrella pay, and how it differs from being a direct employee.

Updated 28 June 2026 · by Atlas Job

If you work through a recruitment or staffing agency — whether you are a care assistant, warehouse operative, delivery driver, hotel housekeeper, office temp, or factory hand — you have a specific set of agency worker rights that are separate from those of permanent employees and separate from the general rules around zero-hours contracts. These rights are largely set out in the Agency Workers Regulations 2010 (AWR), which implemented a European Directive into UK law and have remained on the statute book after the UK left the EU. Understanding what you are entitled to — and from when — can make a real difference to your pay, your working conditions, and your ability to plan your finances.

Disclaimer: This article is general information only and does not constitute legal advice. Agency work arrangements can be complex and vary in their detail. If you are unsure about your specific situation, speak to Acas, a Citizens Advice bureau, a trade union, or a qualified employment solicitor. Statutory figures (such as national minimum wage rates and holiday pay calculations) change regularly; always check GOV.UK for the current rates before relying on any number.

Agency Worker Rights in the UK: The 12-Week Rule Explained

Day-One Rights: What You Are Entitled to Immediately

From the very first day you start an assignment through a temporary work agency, you have certain rights that do not require any qualifying period. These are sometimes called "day-one rights" under the AWR:

These rights apply regardless of how long you have been on an assignment and regardless of whether your agency has put you on a pay-between-assignments contract. They are enforceable from day one and cannot be contracted out of.

The 12-Week Qualifying Period: Equal Treatment Rights

The more significant set of protections kicks in once you have completed 12 calendar weeks in the same role with the same hirer. After this qualifying period, you are entitled to the same basic working and employment conditions as a comparable worker employed directly by the hirer. This principle is known as equal treatment.

What "equal treatment" covers after 12 weeks:

What equal treatment does not cover even after 12 weeks:

How the 12-Week Qualifying Clock Works

The 12-week clock is calculated in calendar weeks, not working days or hours. A week counts even if you only worked one hour in it. The clock runs from the first day you begin an assignment at a particular hirer in a particular role.

What continues the clock (does not break or reset it):

What breaks and resets the clock to zero:

The rules around the clock can feel complicated in practice, especially if you move between multiple hirers or take breaks of varying lengths. If you are unsure whether your clock has reset, contact Acas.

The Swedish Derogation — Abolished Since 6 April 2020

Before April 2020, agencies could use a legal structure known as the "Swedish derogation" (or pay-between-assignments model) to exempt agency workers from the right to equal pay after 12 weeks. Under these contracts, the agency paid the worker a minimum amount of pay between assignments in return for giving up the equal pay entitlement. This loophole was widely criticised because it was frequently used to keep agency workers on lower pay than their permanent colleagues indefinitely.

The Swedish derogation was abolished on 6 April 2020 by the Agency Workers (Amendment) Regulations 2019. Any pay-between-assignments clause in a contract signed after that date is void. If you are on a contract that still contains such a clause, it has no legal effect and you are entitled to the full equal pay protections after your 12-week qualifying period, just like any other agency worker. If you were told otherwise by an agency after April 2020, you may have an underpayment claim. Check with Acas or an employment solicitor.

Note that pay-between-assignments contracts themselves are not illegal — agencies may still offer to pay workers between assignments as an optional benefit — but they cannot be used to strip away equal pay rights.

Umbrella Companies and How Pay Works

Many agency workers, particularly in construction, IT contracting, nursing banks, and other sectors, are paid not directly by the agency but through an umbrella company. Under an umbrella arrangement, the umbrella company acts as your employer. It invoices the agency or hirer, deducts its own margin, and then pays you as an employee — handling PAYE income tax and National Insurance contributions before your money arrives.

Key points for umbrella company workers:

How Agency Worker Rights Differ from Being a Direct Employee or on a Zero-Hours Contract

Agency work is a distinct employment category with its own rules. It is worth understanding how it compares to direct employment and to zero-hours working, since workers in sectors like hospitality, care, and retail often move between all three arrangements.

Agency worker vs. direct employee: A direct employee has a contract of employment with the company they work for. They generally get unfair dismissal rights after two years, occupational sick pay if the employer offers it, occupational pension, redundancy pay from the employer, and access to internal grievance procedures. Agency workers work for the hirer but are employed (in a loose sense) by or through the agency. After 12 weeks they get equal basic pay and conditions, but not the full suite of employment rights. See our guide on how to use temp agencies in the UK if you want a practical guide to finding and working with agencies.

Agency worker vs. zero-hours contract worker: A zero-hours contract worker is employed directly by the company (not through an agency) but has no guaranteed hours. They may have limited or full employee status depending on their contract. Agency workers have a triangular relationship — worker, agency, hirer — with specific AWR protections. Zero-hours workers have different protections: they cannot be required to work exclusively for one employer, and the Employment Rights Act 2025 introduced a right to request a guaranteed-hours contract after a qualifying period. See our guide on zero-hours contracts in the UK for detail on those rules.

Agency worker vs. fixed-term contract employee: A fixed-term employee is employed directly on a contract of a defined length. They have the right not to be treated less favourably than comparable permanent employees from day one. Agency workers have to wait 12 weeks for the equivalent equal treatment right. See our guide on fixed-term contracts in the UK for more on that.

Frequently Asked Questions

What is the 12-week qualifying period for agency workers?

After 12 calendar weeks working in the same role at the same hirer, agency workers become entitled to equal treatment on basic pay, working time, rest breaks, and annual leave compared to what a comparable directly employed worker receives. The clock runs in calendar weeks (not working days), is tied to the specific role and hirer rather than the agency, and is not broken by short absences of up to six weeks, sick leave, annual leave, jury service, or maternity and paternity leave.

Does the 12-week qualifying period reset if I switch agencies?

No — not automatically. The qualifying clock is tied to the role and the hirer, not the agency supplying you. If you carry on doing the same job at the same company through a different agency, the weeks you have already accumulated count towards the 12 weeks. The clock only resets if you move to a substantially different role, move to a new hirer, or take a break of more than six weeks for a reason that is not one of the protected reasons (sick leave, annual leave, maternity leave, etc.).

Am I entitled to sick pay as an agency worker?

Yes — you are entitled to Statutory Sick Pay (SSP) if you meet the qualifying conditions (earnings above the lower earnings limit and four or more consecutive sick days). The AWR's 12-week equal treatment right does not automatically give you the hirer's enhanced occupational sick pay scheme; equal treatment on pay covers your basic working pay, not benefit schemes like occupational sick pay. Check GOV.UK for current SSP rates. Our guide on statutory sick pay in the UK explains the full eligibility rules.

What happened to the Swedish derogation?

The Swedish derogation — a mechanism that allowed agencies to use "pay-between-assignments" contracts to opt agency workers out of equal pay rights after 12 weeks — was abolished on 6 April 2020. Any such clause in a contract is now void. If you are on an agency contract that still contains this clause, it has no legal effect and you are entitled to equal pay after 12 weeks regardless. If your agency told you otherwise after April 2020, you may have an underpayment claim and should contact Acas.

What can I do if I think my agency worker rights have been breached?

First, raise the issue informally with your agency — explain what you believe you are owed under the AWR and ask for an explanation of how your pay or conditions are calculated. If that does not resolve it, you can raise a formal grievance with the agency. If the matter is still not resolved, you can bring a claim to an Employment Tribunal; the time limit is generally three months less one day from the date of the breach, and you must go through Acas Early Conciliation first. Both the hirer and the agency can be respondents to an AWR claim depending on which right was breached.

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