Connie Cliff
PSL Principal Associate
Article
Recent months have brought a wave of legal cases and legislative updates that are shaping the employment law landscape.
In this article, we explore the key rulings on topics such as the definition of sex under the Equality Act, trade union activity, discrimination, and employee entitlements. These cases provide valuable insights into how the courts are interpreting employers' responsibilities and the protections available to employees.
We'll also examine the current legislative developments, including the progress of the Employment Rights Bill and key statutory changes introduced in April 2025.
The Supreme Court has held that the terms 'woman', 'man' and 'sex' in the Equality Act 2010 refer to a person's 'biological sex' (being the sex of a person at birth). Therefore, a person with a Gender Recognition Certificate (GRC) in the female gender does not come within the definition of a 'woman' under the Equality Act 2010 (EqA).
Although the Gender Recognition Act 2004 (GRA) provides that a trans person with a GRC is entitled to have their acquired gender recognised 'for all purposes' this is subject to exceptions including 'provision made by…any other enactment or any subordinate legislation'. The Supreme Court concluded that the exception contained in the GRA applies where there is a clear incompatibility with other legislation making that other legislation's provisions incoherent or unworkable. It concluded that a 'certificated sex' interpretation of the EqA would:
The Court rejected the suggestion that 'woman' and 'sex' could refer to biological sex in some sections of the EqA and certificated sex in others. The meaning of these terms had to be consistent throughout the EqA.
As pointed out by the Supreme Court, this interpretation does not remove protection from trans people (with or without a gender recognition certificate). Trans people are protected from discrimination on the ground of gender reassignment and are also able to claim direct discrimination, indirect discrimination and harassment on the ground of perception or association with their acquired gender.
This case involves issues subject to intense and often heated debate in recent years over which individuals and organisations may hold firm views. It should be remembered that the Supreme Court has not been asked nor addressed the sociological question of 'who is a woman'. The issue the Court had to address did not relate to a fundamental sociological question or even a question of social policy. Instead, it is a question of statutory construction: How are 'women', 'men' and 'sex' defined for the purposes of the EqA 2010. The Court has answered with a clear 'biological sex' being the sex of a person at birth.
This judgment aims to provide a coherent and predictable meaning of the words 'woman', 'man', and 'sex' within the EqA 2010. The clear judgment of the Supreme Court should allow employers and service providers to apply the EqA 2010 with a confident understanding of these words.
However, while we have a clear meaning of "sex", "woman" and "man" for EqA purposes, there remains practical difficulties for some employers over shared toilets and changing facilities.
On 25 April, the Equality and Human Rights Commission (EHRC) published an interim update on the practical consequences of the Supreme Court's decision. The EHRC states:
Point five of the interim guidance reflects the showering/toilet facilities provisions under The Workplace (Health, Safety and Welfare) Regulations 1992 which require (among other things) that separate rooms containing conveniences must be provided for men and women, except where and so far as each convenience is in a separate room, the door of which is capable of being secured from inside [emphasis added].
Despite having described its interim update as a guide to the "practical implications" of judgment, the EHRC does not address many of the difficult issues that organisations are likely to face as a result, such as how to communicate and enforce revised policies on single-sex spaces while balancing and respecting the rights, safety and dignity of all those who are affected. It is worth noting that the interim update is non-statutory guidance and courts and tribunals will not be required to take it into account, although they may choose to consider it.
The EHRC is currently updating its Code of Practice on services, public functions and associations and accompanying guidance. A consultation on the revisions to this Code of Practice is expected to be published shortly and to 30 June. As employers are left to grapple with sensitive issues, the revised guidance for service providers may also prove useful for employers once it is available.
The Employment Rights Bill (ERB) introduced in Parliament on 10 October 2024 completed the House of Commons Stage in March and is now before the House of Lords. Detailed scrutinization of the Bill by a Committee of the Lords began on 29 April 2025.
When first introduced in Parliament, the Bill was 158 pages long. Following numerous amendments at the House of Commons stage the Bill has approximately doubled in size to 310 pages! And more amendments are likely once the House of Lords stage is completed. Indeed, on 29 April the Government put forward 27 more amendments at the first sitting of the House of Lords Committee stage.
The ERB contains a number of highly significant reforms to employment law. These sweeping changes are set to reshape the employment law landscape. The areas covered by the ERB include:
The significance of the ERB should not be underestimated. The Bill itself is hoped to be passed before the summer recess. However, much of the detail on many of the policies in the Bill will be provided through implementing regulations which will require further consultation. As for coming into force, a small number of the changes relating to trade union law reform, are to come into force two months after the Bill is passed. However, the majority of the changes will not be brought into force before 2026 with the changes to unfair dismissal qualifying periods not before autumn 2026. With the amount of outstanding detail, 2026 may prove a challenge.
One area that had previously been expected to be included in the ERB but has now been shelved altogether, is the introduction of a legal right to "switch off" outside working hours.
For more on the provisions of the ERB and the latest amendments, see our tracker Employment Essentials: Employment law changes 2025 and beyond
We expect there to be more changes coming for employment law in the next few months as the new governmental policies and legislation take shape.
Our dedicated landing page, Employment Essentials: Employment law changes 2025 and beyond, will help keep you abreast of the changes, challenges and opportunities that will affect your business.
To ensure you do not miss an update from our team, sign up to our employment updates, or contact a member of our Employment team for more guidance.
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