Flexible Working Request UK: Your Day-One Right Explained

Flexible working has never been more relevant across every corner of the UK workforce. Whether you are a nurse looking to reduce shift hours, a teacher wanting term-time-only arrangements, a chef seeking compressed hours, an electrician balancing caring responsibilities, or an office worker hoping to split time between home and the workplace, the right to request flexible working now belongs to every employee from day one. This guide explains what flexible working actually means in UK law, how the rules changed in April 2024, how to write a compelling request, the grounds an employer can lawfully use to refuse, and what steps you can take if a request is turned down. This is general guidance, not legal advice — always verify current rules on GOV.UK and Acas.

What Does Flexible Working Actually Mean?

Flexible working is a broad term that covers any arrangement where the pattern, location, or volume of work differs from the standard contracted norm. It is not simply a shorthand for working from home. The main types recognised under UK employment law include:

• Part-time working — reducing contracted hours, for example from five days to three. Common among carers, parents, and anyone phasing into semi-retirement.
• Compressed hours — working the same total hours over fewer days, such as four ten-hour days instead of five eight-hour days. Popular in construction, logistics, and manufacturing where shift patterns already run long.
• Flexitime — varying start and finish times around a core period, widely used in professional services, finance, and public-sector office roles.
• Remote or hybrid working — performing some or all work from a location other than the employer's premises. Relevant for roles where the task is location-independent: data entry, call handling, design, accountancy, IT support, and many others.
• Job-sharing — two employees share the duties and pay of one full-time post. Common in teaching, nursing management, and senior civil service roles.
• Term-time working — working only during school terms, with unpaid leave in the holidays. A lifeline for parents employed in retail, administration, and support roles who cannot access affordable childcare.
• Annualised hours — agreeing a total number of hours per year rather than per week, with flexibility over when those hours are worked. Used frequently in agriculture, food processing, and hospitality.
• Staggered hours — different start, finish, or break times from other workers. Useful in warehousing, security, and healthcare where 24-hour cover is needed.

Understanding which type suits your role and personal circumstances is the first step before making a formal request.

The Legal Right to Request Flexible Working in 2024

Before April 2024, employees had to complete 26 weeks of continuous employment before they could make a statutory flexible working request. The Employment Relations (Flexible Working) Act 2023 changed this fundamentally. As of the April 2024 changes, the right to request flexible working is a day-one right — it applies from the very first day of employment, with no qualifying period required.

The reformed rules also strengthened the process in three other important ways:

1. Two requests per 12-month period. Employees may now make up to two statutory requests in any rolling 12-month period, up from one under the old rules. If a first request is refused and circumstances change — a caring responsibility shifts, a team restructure happens — a second request is available within the same year.
2. Employer must respond within two months. Once a formal request is submitted, the employer must deal with and communicate a decision within two months (unless both parties agree to extend this). Previously the time limit was three months.
3. Employer must consult before refusing. This is perhaps the most significant procedural change. Under the reformed rules, employers are required to hold a consultation meeting with the employee before turning down a request. They cannot simply reject in writing without discussion. This gives employees a meaningful opportunity to negotiate, propose variations, or address any concerns the employer has.

The statutory scheme applies to employees, not workers or the self-employed. Agency workers and some atypical arrangements may have different rights — check with Acas if you are unsure of your employment status. For employees on zero-hours contracts, the right still applies; see our related guide on zero-hours contracts in the UK for context on how those agreements work.

How to Write a Strong Flexible Working Request

A statutory request must be made in writing and must include specific information set out in legislation. Getting this right matters — a poorly drafted request makes it easier for an employer to delay or dismiss it on procedural grounds.

Your written request must state:

• The date of the request
• The change to working conditions you are requesting (be specific — days, hours, location)
• The date from which you want the change to take effect
• Whether you have previously made a statutory flexible working request and, if so, when

Beyond the bare legal minimum, a well-argued request dramatically improves your chances of a yes. Consider including:

• A clear explanation of how the arrangement will work in practice. If you are a retail supervisor requesting compressed hours, explain how the floor will still be covered on your days off. If you are an NHS administrator requesting term-time working, address how handovers and cover will be managed.
• The effect on colleagues and customers — and your proposed solution. Employers often refuse because they worry about service continuity. Anticipate this. A care worker asking for a later start time might note that a colleague on the opposite shift pattern would welcome the earlier finish.
• Any trial period offer. Proposing a three-month trial reduces the perceived risk for the employer and demonstrates good faith. Many successful flexible working arrangements begin as trials.
• Evidence of any existing informal flexibility. If you have already been working these hours informally and the team has coped fine, say so.

Send the request by email so you have a date-stamped record. Keep a copy. Remember that once received, the employer has two months to respond and must consult with you before refusing. If your role search involves looking for employers who already advertise flexible roles, our guide on notice periods is also useful background when evaluating a new offer alongside any flexibility discussions.

Grounds on Which an Employer Can Refuse

An employer does not have to agree to a flexible working request. However, they can only refuse on one or more of the eight statutory business grounds defined in the Employment Rights Act 1996 (as amended). These are:

1. The burden of additional costs
2. A detrimental effect on the ability to meet customer demand
3. An inability to reorganise work among existing staff
4. An inability to recruit additional staff
5. A detrimental impact on quality
6. A detrimental impact on performance
7. Insufficiency of work during the periods you propose to work
8. Planned structural changes

Critically, the employer must state which ground (or grounds) apply and explain why they apply to your specific request. A vague or generic refusal that does not reference one of these grounds is procedurally defective. Equally, an employer who refuses without holding the required consultation meeting before issuing the decision has failed to follow the correct statutory process.

It is worth understanding that these grounds are broad — particularly "detrimental effect on performance" or "ability to meet customer demand." Employers in hospitality, retail, healthcare, and emergency services have genuine operational constraints. However, broad grounds still need to be justified in relation to your particular role and proposed arrangement, not stated in the abstract.

If you are a teacher on a permanent contract requesting reduced hours, the school cannot simply say "we need full-time cover" without explaining why reorganisation or job-share is not feasible. If you are a warehouse operative asking for a different shift pattern, the employer must show why the rota cannot absorb the change. During the mandatory consultation meeting, ask questions about the specific concern and whether any variation of your proposal would address it.

What to Do if Your Request Is Refused

A refused request is not necessarily the end of the road. You have several options.

Appeal internally. Most employers have an appeal stage. Request it in writing, setting out why you believe the refusal was unreasonable or procedurally flawed. This creates a paper trail and shows good faith.

Raise a grievance. If the employer failed to follow the statutory procedure — for instance, refused without consultation, missed the two-month deadline, or cited a ground that does not apply — you can raise a formal grievance. Check your employer's grievance policy or the Acas Code of Practice on flexible working.

Acas early conciliation. Before making a claim to an employment tribunal, you are required to notify Acas and go through early conciliation. This is a free service that resolves many disputes without a formal hearing. See Acas for how to start this process.

Employment tribunal. If the employer dealt with your request in an unreasonable manner, failed to follow the correct procedure, or based the refusal on incorrect facts, you may have a claim. You must submit a claim within three months less one day of the date the employer's decision was communicated. Do not attempt to navigate a tribunal without first taking advice from Acas or a qualified employment solicitor. Do not rely on figures or compensation amounts from online sources — these change and your specific circumstances matter enormously.

It is also worth considering whether the refusal has any discriminatory dimension. If flexible working is disproportionately refused to employees with childcare responsibilities, disabilities, or certain religious obligations, there may be an indirect discrimination angle on top of the statutory flexible working claim. This is a separate legal question that a specialist adviser can assess.

For broader context about your employment rights, our guides on probation periods, redundancy pay, and employer reference checks cover adjacent topics that often arise when employees are navigating significant workplace changes.

FAQ

Can I make a flexible working request on my first day at a new job?

Yes. As of the April 2024 changes under the Employment Relations (Flexible Working) Act 2023, the right to request flexible working is a day-one right. There is no qualifying period. You may submit a formal statutory request from the moment your employment begins. Check GOV.UK for the latest rules in case further changes have been made since April 2024.

How many flexible working requests can I make in a year?

You can make up to two statutory flexible working requests in any rolling 12-month period. If your first request is refused and your circumstances change, you are entitled to submit a second request within the same 12 months. Once a request is withdrawn or decided, the count resets at the 12-month mark from the date of the first request.

Does my employer have to say yes to a flexible working request?

No. Your employer can refuse your request, but only on one or more of the eight statutory business grounds set out in the Employment Rights Act 1996. They must state which ground applies, explain why it applies to your specific role and request, and — crucially — hold a consultation meeting with you before issuing a refusal. A refusal without consultation or without citing a valid ground is procedurally defective and may be challenged.

What if my employer ignores my flexible working request or misses the two-month deadline?

If your employer fails to deal with your request within two months (unless you have both agreed an extension), or fails to follow the correct procedure, you may be able to raise a grievance or make a claim to an employment tribunal. You must contact Acas for early conciliation before lodging a tribunal claim. Always seek advice from Acas or an employment adviser before taking this step, as time limits are strict.

Does the right to request flexible working apply to shift workers, NHS staff, and retail employees — not just office workers?

Yes. The statutory right applies to all employees in all sectors, regardless of role or industry. Nurses, retail supervisors, warehouse operatives, chefs, teachers, cleaners, and tradespeople all have the same right as office-based employees. The employer's ability to refuse on operational grounds may be stronger in some roles, but the right to make a request and receive a lawful, consulted-upon decision is universal.

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