Fertility and IVF leave in the United Kingdom
Reviewed by Mellow Editorial Team, HR & payroll content team
Fertility and IVF treatment leave has no standalone statutory basis in UK law — there is no automatic, named right to "fertility leave" the way there is for maternity or paternity leave. However, employers have real legal obligations that apply during fertility treatment, and a growing number are choosing to go further with voluntary policies.
What the law actually says
No specific legislation grants paid or unpaid leave for fertility treatment, egg freezing or IVF cycles. That means employees have no automatic entitlement to time off solely because they are undergoing treatment.
That said, several existing protections do apply:
Pregnancy protections start from implantation. Once a fertilised embryo has been transferred, an employee is legally pregnant for the purposes of sex discrimination law, even before a confirmed positive test. Any detrimental treatment from that point — including dismissal or being passed over for promotion — can constitute unlawful pregnancy discrimination under the Equality Act 2010.
Disability discrimination may apply. Some fertility conditions, such as endometriosis or polycystic ovary syndrome, can qualify as disabilities under the Equality Act if they have a substantial, long-term effect on day-to-day activities. Where that threshold is met, employers have a duty to make reasonable adjustments, which could include flexible scheduling around clinic appointments.
Sex discrimination risk. Treating an employee unfavourably because they are having fertility treatment — refusing flexible working, dismissing them, or managing them out — can amount to direct sex discrimination, particularly where the treatment is more burdensome for the woman undergoing it.
Existing leave entitlements still apply. Employees can use annual leave (the statutory minimum is 5.6 weeks, or 28 days including bank holidays for a five-day week), sick leave, or agreed flexible working arrangements to attend appointments. There is no legal bar on taking sick leave where treatment side-effects genuinely prevent someone from working.
Why a voluntary policy makes sense
Because the law is patchy, relying on it alone creates uncertainty for both sides. A written fertility leave policy removes ambiguity, reduces the risk of inconsistent management decisions, and signals that the organisation takes employee wellbeing seriously.
A growing number of UK employers now offer:
- A set number of paid days per treatment cycle for medical appointments and recovery
- Paid or unpaid leave for partners or supporting spouses
- Flexibility to attend monitoring scans and clinic visits without using annual leave
- Confidential manager training so line managers know how to handle disclosures sensitively
None of this is required by law, but once a policy exists it must be applied consistently. Applying it differently to employees with similar circumstances risks discrimination claims.
Designing a policy that works in practice
A workable policy should cover a few practical questions clearly:
Who is eligible? Specify whether the policy covers all employees, or only those past a certain length of service. The Employment Rights Act 2025 strengthens day-one rights more broadly, so be cautious about service-length thresholds that could appear arbitrary or discriminatory.
What leave is offered? Be specific: number of days per cycle, per calendar year, or per lifetime of employment. Clarity reduces manager discretion and the disputes that come with it.
Does it cover partners? Treatment affects both people. Many employers extend a smaller entitlement — typically a day or two per cycle — to the non-gestational partner.
What evidence is needed? You can ask for appointment letters or a letter from a clinic, but be careful not to require more evidence than you would for other medical appointments. Sensitivity matters: not everyone wants their HR team to know the clinical details of their treatment.
What happens after a failed cycle? A miscarriage after embryo transfer carries full pregnancy loss protections. A failed cycle before transfer does not, but employees may need time to recover emotionally and physically. Building in discretionary compassionate leave for this scenario is good practice.
Managing disclosures sensitively
When an employee tells their manager they are undergoing fertility treatment, that information is sensitive health data under UK GDPR. It should be treated with the same confidentiality as any other medical information. Managers should be trained not to share it more widely than necessary, not to make assumptions about future performance or attendance, and not to make light of it.
It is also worth being clear with managers that an employee does not have to disclose fertility treatment to take sick leave. If someone is genuinely unwell from treatment side-effects, they are entitled to follow the normal sickness absence process without explaining why.
The practical upshot
Employers who wait for the law to require a fertility policy will likely find the gap between legal minimum and employee expectation continues to widen. Drafting a clear, fair policy now — even a simple one — means you are not making it up case by case, and that every employee is treated the same regardless of who their manager is.
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