The Employment Rights Act 2025 (the “Act”) marks the biggest shift in UK workplace rules in over a decade. It received Royal Assent on 18 December 2025 and will be phased in through 2026 and 2027, giving employers and employees time to adjust to the new framework. The Act amends and adds to existing legislation, including the Employment Rights Act 1996, and covers everything from zero-hours contracts and flexible working to sick pay, family leave, dismissal, sexual harassment and enforcement. At its core, the Act is part of the government’s wider “Make Work Pay” agenda, aiming to tackle one-sided flexibility, improve job security, modernise the employment rights framework to suit the economy of today and strengthen protections for vulnerable workers while still preserving flexibility for employers. For all employers, this means both new obligations and new opportunities to rethink how work is organised.
The Government has indicated that most reforms will be implemented during 2026, with further guidance and consultations expected to continue through to 2027 as the implementation timetable progresses. For employers, this phased approach provides a valuable window to review policies, update employment practices and prepare managers for the changes ahead.
Implications for Small and Medium-Sized Enterprises (“SMEs”)
For SMEs that often rely on informal practices, lean HR functions and flexible staffing, the Act is a clear signal that the bar on compliance and documentation is rising. The Act introduces new rights for workers on zero and low-hours contracts, expands family-related leave, strengthens flexible working rules, and tightens expectations around harassment and dismissal.
This is not just a legal update; it’s a cultural nudge. Businesses that continue to rely on last-minute rota changes, vague contracts or ad-hoc decision-making will be more exposed to disputes, tribunal claims and regulatory scrutiny. SMEs that get ahead of the changes can use the opportunity to improve retention, attract talent and build a stronger employer brand.
Addressing One-Sided Flexibility
A major focus of the Act is to tackle “one-sided flexibility” in order to ensure that all jobs provide a baseline of security and predictability. Although these measures have not yet come into force, the government is currently consulting on the detailed operation of the new rights, which will be set out in secondary legislation. Following the consultation, the government will finalise its policy position before the measures are implemented.
The Act will put an end to exploitative zero and low-hours arrangements by introducing new measures that will give employees the right to:
- guaranteed hours, where the number of hours offered reflects the hours worked by a qualifying worker during a reference period (expected to be around 12 weeks);
- reasonable notice of shifts and changes made to guaranteed hours; and
- compensation paid for cancelled, moved or curtailed shifts at short notice.
For SMEs in hospitality, retail, logistics, care and other shift-based sectors, this will mean more structured workforce planning and less reliance on last-minute scheduling. While this may feel restrictive, predictable hours can reduce churn, improve morale and make recruitment easier – especially in tight labour markets.
The Act will also work to prevent employers from using ‘fire and rehire’ or ‘fire and replace’ tactics by automatically classifying dismissals as unfair where employees are terminated for not agreeing to changes to key contractual terms, except where businesses are in severe financial difficulties and genuinely have no alternative. This makes it particularly important for SMEs to think carefully about their employment policies and contractual terms at the outset, ensuring that contracts are robust enough to avoid future variations that may create legal exposure.
Flexible Working: From “Nice to Have” to Structured Duty
Employees already have a day-one right to request flexible working, but the Act is expected to strengthen the framework by making refusals more transparent and subject to a clearer reasonableness test. The Government consulted on these reforms in 2026, with the changes expected to take effect in 2027.
The Act is expected to require employers who cannot agree to a flexible working request to:
- follow a clearer consultation process before refusing a request;
- consider whether alternative arrangements are possible, rather than moving straight to refusal;
- explain why any refusal is reasonable, by reference to one or more of the existing statutory business reasons; and
- set out the basis for the decision, creating greater transparency for employees.
For SMEs, this means that informal responses such as “that won’t work for the business” will no longer be enough. Employers should be ready to show that requests have been properly considered, alternatives explored and decisions documented. This is likely to require updated template letters, clearer internal procedures and practical training for managers on how to handle flexible working requests consistently.
Handled well, the changes could be a real opportunity for SMEs. A fair and transparent approach to flexible working can support retention, widen access to talent and make smaller businesses more attractive to parents, carers and candidates seeking more adaptable working patterns.
Sick Pay and Family-Friendly Rights
The Act also reshapes sick pay and family-related leave by:
- making Statutory Sick Pay (SSP) a day-one right, with the waiting period removed and the lower earnings limit scrapped, making SSP accessible to more low-paid and irregular workers;
- turning Paternity Leave and Unpaid Parental Leave into day-one rights, with more flexibility in how and when they are taken. Parents are now enabled to take their paternity leave and pay after their shared parental leave and pay;
- offering a new entitlement to Unpaid Bereavement Leave, including for pregnancy loss before 24 weeks, is introduced; and
- creating new protections against dismissal for pregnant employees, mothers on maternity leave and mothers for at least six months after their return to work, except in limited circumstances.
For SMEs, this means revisiting policies, contracts and payroll systems. It also means planning for more varied leave patterns and ensuring managers understand that mishandling a dismissal involving pregnancy or family leave now carries higher risk.
Harassment, NDAs and Culture
The Act strengthens protections around harassment, discrimination and workplace wellbeing. Key changes include:
- requiring employers to take “all reasonable steps” to prevent sexual harassment;
- introducing employer liability for third-party harassment, including harassment by clients, customers and contractors;
- strengthening whistleblowing protections for workers who report sexual harassment; and
- restricting the use of NDAs that seek to prevent workers from speaking out about harassment, discrimination or an employer’s response to such issues.
For SMEs, this means moving beyond “we’ve never had a complaint” as reassurance. SMEs will need:
- clear and accessible anti-harassment policies;
- practical training for managers and employees;
- a credible process for raising and handling concerns;
- a review of NDA and settlement agreement wording; and
- appropriate measures to manage risks arising from third-party interactions.
This is not just about compliance. A safe, transparent and respectful workplace can improve retention, strengthen reputation and help attract talent in an increasingly values-driven labour market.
Dismissal, Redundancy and Enforcement
The Act also reforms dismissal and enforcement rules by:
- making changes to unfair dismissal qualifying periods and compensation caps (in certain circumstances), which will raise the stakes for poorly handled exits;
- extending and clarifying collective redundancy rules, with a wider range of scenarios triggering consultation duties; and
- creating a new Fair Work Agency that will act as the single enforcement body for minimum workplace standards. The Fair Work Agency will promote compliance of employment law and ensure the enforcement of minimum wage, agency rules, and holiday pay. It will also investigate suspected breach of employment law and other alleged labour exploitation, and will have powers to investigate, issue penalties and bring tribunal claims.
For SMEs, this means that the assumption that ‘we’re too small to be on the radar’ is becoming increasingly difficult to justify. Record-keeping, consultation and fair process will matter more, not less.
Risk, Reward and Next Steps for SMEs
The Act brings positive opportunities for SMEs: better retention, stronger recruitment, fewer disputes and a more resilient culture. But there are also clear risks if they do not prepare adequately, including:
- legal risks with increased exposure to tribunal claims and regulatory action;
- operational risks, such as rota and staffing disruption if you don’t adapt to predictable hours and new leave rights; and
- a reputational risk, when being seen as a non-compliant or uncaring employer in a market where values matter.
Practical steps for SMEs include:
- reviewing contracts, handbooks and policies against the Act;
- mapping where you use zero or low-hours arrangements and how you schedule shifts;
- putting a simple, documented process in place for flexible working requests;
- updating sick pay, family leave and bereavement policies; and
- training managers on harassment, dismissal and handling sensitive conversations.
The Motion Paradox team of start-up business and legal consultants can work with you to review contracts, policies and HR practices to ensure they align with the Act and accurately reflect your business’s culture and values. Done thoughtfully, compliance with the new regime can become part of your value proposition – not just a box-ticking exercise.