Employment Rights Act 2025: What Employers Must Know

The Employment Rights Act 2025 represents the most significant overhaul of UK employment law in a generation. Receiving Royal Assent in late 2025, this landmark legislation introduces sweeping changes to workers’ rights — from day-one protection against unfair dismissal to fundamental reforms of zero-hours contracts.

For employers, the message is clear: the rules of the game are changing, and preparation must start now. This guide breaks down every key change, explains when each provision takes effect, and sets out practical steps to ensure your organisation is ready.

Why the Employment Rights Act 2025 Matters

The Act delivers on the government’s Make Work Pay agenda, aiming to rebalance the relationship between employers and workers. It touches nearly every aspect of the employment relationship — hiring, contracts, pay, leave, dismissal and trade union rights.

The changes do not all come into force at once. Most provisions are being introduced in phases between April and October 2026, giving employers a window to prepare. But that window is narrowing, and some of the reforms require fundamental changes to HR policies, contracts and management practices.

Key Changes: What Is Changing and When

Day-One Unfair Dismissal Rights

Effective: April 2026

This is perhaps the most significant change in the Act. Currently, employees must have two years’ continuous service before they can bring an unfair dismissal claim. The Act replaces this with day-one protection against unfair dismissal.

However, the legislation introduces an initial period of employment — set at six months — during which a lighter-touch process applies for dismissals. During this initial period:

• Employers can still dismiss employees who are genuinely not suitable for the role
• A simplified procedure applies, rather than the full statutory disciplinary process
• The employer must still act reasonably and provide a basic explanation for the dismissal
• Dismissals that are automatically unfair (e.g. for whistleblowing, pregnancy or asserting statutory rights) remain fully protected from day one, as they always have been

What this means in practice: You can no longer rely on the two-year qualifying period as a safety net for poor hiring decisions. Your recruitment processes, probation management and performance review systems all need to be robust from the outset.

Statutory Sick Pay From Day One

Effective: April 2026

The three-day waiting period for Statutory Sick Pay (SSP) is being abolished. Employees will be entitled to SSP from the first day of sickness absence. Additionally, the lower earnings limit is being removed, meaning approximately 1.3 million more workers will become eligible for SSP.

For a detailed breakdown of all SSP changes, see our complete guide to SSP changes in April 2026.

Zero-Hours Contract Reforms

Effective: October 2026

The Act does not ban zero-hours contracts outright, but it introduces significant new rights for workers on such arrangements:

• Right to guaranteed hours: Workers who regularly work more than their contracted hours over a 12-week reference period must be offered a contract reflecting their actual working pattern
• Right to reasonable notice of shifts: Employers must provide reasonable notice of shifts and any changes to scheduled shifts
• Right to compensation for cancelled shifts: If a shift is cancelled at short notice, the worker is entitled to compensation

These reforms also apply to workers on low-hours contracts where they regularly work above their contracted hours.

What this means in practice: If you rely on zero-hours or flexible contracts, you need to review your scheduling practices, monitor actual working patterns and be prepared to offer guaranteed-hours contracts where the criteria are met. A digital employee scheduling system will be essential for tracking patterns and demonstrating compliance.

Enhanced Parental and Bereavement Leave

Effective: April 2026

The Act makes several improvements to family-related leave:

• Paternity leave: Available from day one of employment (removing the current 26-week qualifying period)
• Unpaid parental leave: Available from day one (removing the one-year qualifying period)
• Bereavement leave: A new statutory right to bereavement leave, extending protections beyond the existing right to parental bereavement leave
• Protection from dismissal: Enhanced protection for pregnant employees and those returning from maternity, adoption or shared parental leave

Fire and Rehire Restrictions

Effective: October 2026

The practice of dismissing employees and re-engaging them on less favourable terms — known as “fire and rehire” — is being heavily restricted. The Act makes it automatically unfair to dismiss an employee for refusing to agree to a variation of their contract, unless:

• The employer can demonstrate that the variation was necessary to avoid serious financial difficulties that threatened the viability of the business
• The employer has consulted the affected employees and explored all reasonable alternatives
• The new terms are reasonable in the circumstances

This is a high bar to meet. Employers who have historically used fire and rehire as a negotiating tactic will need to find alternative approaches.

Trade Union Access and Rights

Effective: October 2026

The Act introduces several changes to trade union law:

• Simplified union recognition: The threshold for union recognition ballots is being lowered, and the process simplified
• Right of access: Trade unions will have a new statutory right of access to workplaces to meet, recruit and organise workers
• Facility time: Enhanced protections for trade union representatives undertaking union duties
• Industrial action: Reforms to ballot requirements and notice periods for industrial action

Single Enforcement Body

Effective: To be confirmed

The Act provides for the creation of a Fair Work Agency — a single enforcement body that will bring together the enforcement functions currently spread across multiple agencies, including:

• The Employment Agency Standards Inspectorate
• The Gangmasters and Labour Abuse Authority
• HMRC’s National Minimum Wage enforcement
• Parts of the Equality and Human Rights Commission’s enforcement role

The Fair Work Agency will have powers to inspect workplaces, investigate complaints and take enforcement action. Its creation date has not yet been confirmed, but employers should anticipate a more co-ordinated and proactive enforcement regime.

Timeline: When Changes Take Effect

Understanding the phased implementation is critical for planning:

Change	Effective Date
Day-one unfair dismissal rights (with initial period)	April 2026
SSP from day one / removal of lower earnings limit	April 2026
Enhanced paternity and parental leave (day one)	April 2026
Bereavement leave	April 2026
Enhanced pregnancy/maternity dismissal protection	April 2026
Zero-hours contract reforms	October 2026
Fire and rehire restrictions	October 2026
Trade union access and recognition changes	October 2026
Fair Work Agency	To be confirmed

What Employers Need to Do Now

1. Audit Your Current Contracts and Policies

Review all employment contracts, handbooks and policies against the new requirements. Key areas to check:

• Probation clauses: Ensure your probation procedures align with the new initial period of employment framework
• Zero-hours and low-hours contracts: Identify all workers on such arrangements and begin tracking their actual working patterns
• Sick pay policies: Update company sick pay schemes to reflect the removal of the waiting period
• Family leave policies: Update paternity, parental and bereavement leave provisions

2. Strengthen Your Recruitment and Onboarding

With day-one unfair dismissal protection, getting recruitment right becomes even more important. Consider:

• More rigorous selection processes, including structured interviews and skills assessments
• Thorough reference checking
• Clear, documented probation objectives with regular review points
• Effective onboarding programmes that set employees up for success

3. Upgrade Your HR Systems

Many of these changes require better tracking and record-keeping. A modern HR management system should be able to:

• Track probation periods and trigger review reminders
• Monitor working patterns for zero-hours and low-hours workers
• Manage absence records and SSP eligibility from day one
• Maintain audit trails for disciplinary and dismissal processes

4. Train Your Managers

Line managers are your front line for compliance. They need to understand:

• The new rules around dismissal during the initial period
• How to conduct fair and documented probation reviews
• Shift scheduling obligations for workers on flexible contracts
• Enhanced protections for pregnant employees and new parents

5. Review Your Scheduling Practices

If you use zero-hours contracts or variable shift patterns, you need to:

• Implement systems to track actual hours worked over rolling 12-week periods
• Set up processes to identify when guaranteed-hours offers are triggered
• Ensure shift notifications meet the new reasonable notice requirements
• Plan for compensation obligations when shifts are cancelled at short notice

An employee scheduling tool that automatically tracks patterns and flags compliance triggers will be invaluable.

6. Budget for the Financial Impact

Several changes have direct cost implications:

• SSP from day one will increase sickness costs, particularly for employers with high short-term absence rates
• Guaranteed hours for zero-hours workers may increase labour costs
• Enhanced leave entitlements may require additional cover arrangements
• Investment in HR systems and manager training

Preparing for a New Era of Employment Rights

The Employment Rights Act 2025 marks a fundamental shift in UK employment law. While the changes are significant, employers who start preparing now will be well-placed to comply when each provision takes effect.

The key is not to view these changes as a burden, but as an opportunity to strengthen your people management practices. Organisations with robust HR processes, fair contracts, effective scheduling and good record-keeping will find the transition far smoother than those relying on outdated practices and informal arrangements.

Start by auditing your current position, invest in the right systems and training, and build compliance into your everyday operations. Explore how our HR Management and Employee Scheduling features can help your organisation prepare for the changes ahead.