Since 6 April 2024, every employee in the UK has the statutory right to request flexible working from day one of employment. Previously, employees needed 26 weeks of continuous service before making a request. The changes, introduced by the Employment Relations (Flexible Working) Act 2023, also allow employees to make two requests in any 12-month period (up from one) and require employers to respond within two months (down from three).

Types of Flexible Working

Flexible working covers any change to the employee’s working pattern. Common arrangements include:

TypeDescription
Part-timeReducing total hours worked per week
Compressed hoursWorking full-time hours over fewer days (e.g. four 10-hour days)
FlexitimeEmployee chooses start and finish times around core hours
Remote workingWorking from home or another location outside the office
Hybrid workingSplitting time between the office and a remote location
Job sharingTwo employees share the responsibilities of one full-time role
Staggered hoursDifferent start, break and finish times from other employees
Annualised hoursTotal annual hours are fixed but distributed unevenly across the year
Term-time workingWorking only during school term times

The Statutory Process

Making a Request

The employee must make their request in writing (including email). The request must:

  • State that it is a statutory request under section 80F of the Employment Rights Act 1996
  • Specify the change requested and the proposed start date
  • Explain what effect the change might have on the employer and how this could be managed
  • State the date of any previous request (employees can make two requests in 12 months)

Employer’s Obligations

Under the 2024 rules, the employer must:

  1. Consult with the employee before refusing a request — this is a new mandatory requirement
  2. Respond within two months of the request being made (unless an extension is agreed with the employee)
  3. Only refuse on one or more of the eight statutory grounds listed below
  4. Notify the employee in writing of the decision, including the business reason if refusing

Grounds for Refusal

An employer can only refuse a flexible working request for one or more of these eight statutory reasons:

GroundExample
Burden of additional costsHiring additional staff to cover reduced hours would be disproportionately expensive
Detrimental effect on ability to meet customer demandKey client-facing role requires presence during standard hours
Inability to reorganise work among existing staffNo other employee has the skills or capacity to absorb the work
Inability to recruit additional staffSpecialist role with limited candidate pool
Detrimental impact on qualityQuality control requires on-site presence
Detrimental impact on performanceMeasurable drop in output or productivity
Insufficiency of work during proposed periodsEmployee wants to work hours when there is no work to do
Planned structural changesUpcoming reorganisation would make the arrangement impractical

The employer must demonstrate a genuine business reason — blanket refusals without proper consideration are not permitted.

Changes from April 2024

FeatureBefore April 2024From April 2024
Eligibility26 weeks continuous serviceDay one — no qualifying period
Number of requests1 per 12 months2 per 12 months
Response deadline3 months2 months
Consultation requirementNot mandatoryMust consult before refusing
Employee statement of impactRequiredRemoved — employee no longer needs to explain how the change could be dealt with

Handling Requests in Practice

Step-by-Step

  1. Acknowledge the request promptly and confirm the two-month deadline
  2. Arrange a consultation meeting — discuss the request, explore alternatives if the exact request cannot be met
  3. Consider the request against the eight statutory grounds
  4. Decide and communicate — approve, propose a modification or refuse with clear reasons
  5. Confirm in writing — include the decision, the start date (if approved) and the right to appeal

Trial Periods

Where there is uncertainty about whether an arrangement will work, the employer can agree a trial period with the employee. This allows both parties to assess the impact before making a permanent change. The trial should have a defined duration and review criteria.

Varying the Contract

If a flexible working request is approved, it constitutes a permanent change to the employment contract unless otherwise agreed. The employer should:

  • Issue a written statement of the new terms (or an amendment to the contract)
  • Update payroll to reflect any changes to hours, pay or working pattern
  • Adjust holiday entitlement proportionally for part-time arrangements

Impact on Other Employment Terms

Pay and Hours

Reduced hours normally mean pro-rated pay. The employee’s annual salary, pension contributions and other pay-related benefits are adjusted in proportion to the new working hours.

Notice Period

The employee’s notice period is typically unaffected by a flexible working arrangement, as notice is usually expressed in weeks or months rather than linked to working hours. However, if the contract ties notice to length of service and the flexible arrangement involves a break in continuity (which is rare), this should be checked.

Holiday Entitlement

Part-time employees are entitled to pro-rated holiday. A full-time employee working 5 days per week receives 28 days (including bank holidays). An employee moving to 3 days per week receives:

28 × (3 ÷ 5) = 16.8 days

Bank holidays falling on non-working days do not need to be given as additional leave, provided the total entitlement meets the statutory minimum.

Employer Risks

  • Indirect discrimination — refusing flexible working disproportionately affects women (who make more requests) and could constitute indirect sex discrimination under the Equality Act 2010
  • Failure to follow the statutory process — the employee can bring a claim to an employment tribunal if the employer fails to deal with the request properly
  • Compensation — tribunals can award up to 8 weeks’ pay (capped at the statutory weekly limit) for procedural failures, plus any discrimination award if applicable

Record-Keeping

Employers should retain records of all flexible working requests and decisions, including:

  • The written request
  • Notes from the consultation meeting
  • The written decision (with reasons if refused)
  • Any agreed trial period arrangements
  • Contract amendments issued