United Kingdom · employment

How to Appeal a Flexible Working Refusal in the UK

Having your flexible working request rejected by HR can derail your childcare, health, or work-life balance, but a refusal is rarely the final word. Under UK employment law and the Acas Code of Practice, employers cannot simply tick a box to dismiss your application without proper consultation. You have the right to challenge their reasoning, propose manageable compromises, and escalate the matter if their decision breaches statutory standards or equality legislation.

What UK Employment Law Requires from Your Employer

In the United Kingdom, your statutory right to request flexible working is governed by Sections 80F to 80I of the Employment Rights Act 1996, as amended by the Employment Relations (Flexible Working) Act 2023. Since 6 April 2024, flexible working is a Day 1 right, allowing employees to make up to two statutory requests within any 12-month period. Crucially, employers are legally prohibited from rejecting a request without first consulting with you.

An employer can only refuse a request on one or more of eight specific statutory business grounds set out in Section 80G(1)(b) of the Employment Rights Act 1996: the burden of additional costs; detrimental effect on ability to meet customer demand; inability to reorganise work among existing staff; inability to recruit additional staff; detrimental impact on quality; detrimental impact on performance; insufficiency of work during proposed periods; or planned structural changes. The employer must conclude the entire process—including any internal appeal—within two months of receiving your request, unless you formally agree to an extension.

Challenging Generic Refusals and Potential Discrimination

A common tactic used by management is citing a statutory ground—such as 'detrimental impact on performance' or 'burden of additional costs'—as a blanket justification without providing evidence or assessing your role. The statutory Acas Code of Practice on requests for flexible working makes clear that employers must handle requests reasonably, consider arguments objectively, and actively explore alternatives if the exact working pattern requested cannot be accommodated.

Furthermore, an unreasonable refusal often conceals unlawful discrimination under the Equality Act 2010. If you requested flexible hours to manage childcare responsibilities, a blanket refusal can constitute indirect sex discrimination under Section 19 of the Act, because rigid working patterns disproportionately impact women. If your request relates to a physical or mental impairment, failing to consider flexible hours may breach the employer's mandatory duty to make reasonable adjustments under Sections 20 and 21 of the Equality Act 2010.

Next Steps: Structuring Your Appeal and Escalation

While primary legislation does not contain an explicit statutory right of appeal, the Acas Code of Practice strongly recommends that employers provide an appeal mechanism, and Employment Tribunals take failures to follow the Acas Code into account. If your employer turned you down, submit a formal written appeal setting out why their business reasons are factually inaccurate, how your duties can be covered, or suggesting a time-limited trial period.

You do not have to fight a stonewalling HR department on your own. You can use Caunsel to research statutory grounds, store your correspondence and evidence in a structured case file, or list your situation to consult an independent UK employment solicitor who can review your leverage before deadlines expire.

Steps

• Scrutinise the written rejection letter against the eight statutory grounds under Section 80G of the Employment Rights Act 1996 and check whether HR consulted you before making their decision.
• Draft a formal notice of appeal within the company's internal appeal deadline (typically 5 to 14 days), systematically rebutting HR's commercial justifications with factual workload and coverage evidence.
• Offer practical alternatives in your appeal, such as a three-month trial period, core hours coverage, or a staggered schedule to neutralise their operational objections.
• If the appeal is dismissed or HR refuses to hear it, assess tribunal claims for procedural breach under Section 80H of the Employment Rights Act 1996 or discrimination under the Equality Act 2010, initiating Acas Early Conciliation within the strict three-month limitation period.

Common mistakes

• Treating the refusal merely as an HR disagreement rather than assessing whether it amounts to indirect sex discrimination or a failure to make reasonable adjustments under the Equality Act 2010.
• Missing the internal appeal deadline or the strict three-month minus one day limitation window for initiating Acas Early Conciliation from the date of the breach.
• Resigning in protest to claim constructive dismissal without obtaining legal advice, as the bar for repudiatory breach of contract is exceptionally high.
• Failing to document past performance reviews, remote working success, or peer arrangements that disprove HR's claims of operational disruption.

Questions people ask

Is my employer legally required to grant an appeal under UK law?

Although Section 80G of the Employment Rights Act 1996 does not explicitly mandate an appeal meeting, the Acas Code of Practice on flexible working requests explicitly states that employers should allow an employee to appeal. Tribunals consider compliance with the Acas Code when determining whether an employer handled a request reasonably.

What compensation can an Employment Tribunal award for a flexible working breach?

For a breach of the flexible working regulations under Section 80H of the Employment Rights Act 1996 (such as failing to consult or relying on incorrect facts), a tribunal can order reconsideration and award up to eight weeks' statutory pay, capped at the statutory weekly rate. However, if the refusal also constitutes unlawful discrimination under the Equality Act 2010, compensation is uncapped and includes injury to feelings.

How long does an employer have to decide on my flexible working appeal?

Under the Employment Relations (Flexible Working) Act 2023, the entire process—including any appeal and communication of the final outcome—must be completed within two months of your original request date, unless both parties formally agree to an extension in writing.

General information only, last updated 2026-10-12. Caunsel is not a law firm and does not practise law. AI answers and this guide are not legal advice. Verify filings, deadlines, and statutes with a licensed lawyer in United Kingdom.