Unpaid trial shift entitlement

Short answer

There is no simple yes or no. Whether you must be paid for a trial shift depends on whether, during that trial, you are legally a “worker” doing “work” for the employer. If you are, you are entitled to at least the National Minimum Wage or National Living Wage for the hours worked, and any agreement to work for free does not remove that right. If the trial is genuinely a short, task-based assessment of your ability as part of recruitment, an employer may lawfully leave it unpaid.

The legal position

The right to be paid comes from the National Minimum Wage Act 1998. It applies to anyone who counts as a “worker” for any hour they actually work. The difficulty is that the law does not define a “trial work period” or say exactly when a trial crosses the line into paid work. The question is therefore whether what you did amounts to genuine work with real value to the employer, or a genuine assessment of your suitability.

Importantly, you cannot validly agree to give up the minimum wage. Even if you signed something, or agreed verbally, that the trial would be unpaid, that agreement is not binding if you were in fact working. So the label “trial shift” does not settle the matter.

Factors that decide whether a trial should be paid

Government guidance on the minimum wage sets out the main factors that indicate whether a trial is genuine recruitment or is really unpaid work that must be paid. These include:

Length. The government’s view is that anyone doing work in a trial lasting longer than one day is likely to be entitled to the minimum wage in all but very exceptional circumstances. A trial spanning several shifts or days is a strong sign it should be paid.

Whether the trial length exceeds what the employer reasonably needs to test your ability for the job. A brief observed task is different from a full shift’s worth of productive labour.

Whether the trial is genuinely for recruitment. If it is not really about recruitment, it will generally be treated as work.

Whether the tasks have value to the employer beyond testing you. If you are serving real customers, producing real output, or covering a rota gap, the work has commercial value and points towards pay. Tasks done in a simulated or artificial setting point away from pay.

Whether the employer uses trial periods routinely as part of how it runs the business, for example repeatedly bringing in “triallists” to get free labour during busy periods. That pattern strongly suggests the trials are really work.

How this applies in practice

A genuine, short assessment, for example being asked to make a coffee, do a short till exercise, or demonstrate a skill for an hour in a simulated way, can lawfully be unpaid.

By contrast, being asked to work a full shift, serving real customers during a busy period, producing real work for the business, or trialling across more than one day, points firmly towards you being a worker who should be paid at least the minimum wage. The fact you were later not offered the job does not change your entitlement for the hours you actually worked.

A separate exception to be aware of

There is a narrow statutory exception for certain government-backed schemes. Under the National Minimum Wage Regulations 2015, someone on a trial period of up to six weeks as part of a specific approved scheme (broadly, government employment or work-experience programmes aimed at helping people into work) does not qualify for the minimum wage for that period. This is a limited exception for formal schemes and is quite different from an ordinary employer running its own “trial shift.” An ordinary private trial shift will not fall within it.

Missing facts that affect the answer

To reach a firm view, the key details are: how long the trial lasted, whether it was more than a single day, whether you were doing real productive work or a simulated exercise, whether you served or dealt with real customers, whether the employer regularly runs such trials, and what you were told about pay beforehand. If you were doing genuine work of value for a meaningful period, the case for payment is strong.

Practical next steps

1. Write down the details now while they are fresh: the date, the hours you worked, what tasks you did, who supervised you, and anything you were told about pay. Keep any texts, messages, adverts or rota entries.

2. Ask the employer in writing (email or message) to pay you the minimum wage for the hours worked, briefly explaining that the trial involved real work of value to the business. Keep it polite and factual, and set a short deadline for a reply. Many disputes are resolved at this stage once an employer realises the position.

3. If they refuse, you can report the matter to HMRC, which enforces the National Minimum Wage and can investigate and recover arrears. You can do this online through GOV.UK or via the Acas helpline, and it can be done confidentially.

4. Alternatively or in addition, you can bring a claim for unpaid wages. This is usually pursued as an unlawful deduction from wages or unpaid minimum wage claim in the employment tribunal. Before starting a tribunal claim you must first notify Acas to go through early conciliation, which is free and often resolves matters without a hearing. Be aware there are strict time limits for tribunal claims, generally three months less one day from the date the wages should have been paid, so do not delay if this route matters to you.

5. Acas and Citizens Advice both offer free guidance and can help you decide between the HMRC route and a tribunal claim, and help you assess the strength of your case on the specific facts.

Bottom line

You do not automatically have to be paid for every trial shift, but the “trial” label does not let an employer avoid the minimum wage where you were genuinely working. A short, genuine, task-based assessment can be unpaid. A full working shift, especially over more than one day, doing real work of value to the business, should almost always be paid at least the minimum wage, and you can pursue that money if it is refused.