Employment Rights Bill 2025: 7 Changes Hitting UK Businesses Before Christmas

The Employment Rights Bill 2025 is the biggest overhaul of UK employment law in a generation. It's not a single change — it's a rolling programme of reforms that will reshape how every UK business hires, manages, and parts ways with staff.

Seven of those changes land before Christmas 2026. Some are already in force. Others have firm deadlines in the next six months. All of them carry real costs if you miss them.

This guide covers each one — what it is, when it applies, and what you need to do.

1. Day-One Unfair Dismissal Rights — 1 July 2026

This is the biggest single change in the Bill. From 1 July 2026, employees will have the right not to be unfairly dismissed from their first day of employment — not after two years as is currently the case.

The two-year qualifying period that employers have relied on to manage out underperforming new starters is gone.

What changes in practice:

• You can still dismiss in the first year, but you must follow a fair process and have a genuine reason
• There will be a statutory probationary period (likely nine months) with a lighter-touch dismissal process — details are still being confirmed in secondary legislation
• Employment tribunals will start receiving day-one unfair dismissal claims from July onwards

What to do now: Review your probationary period process. Make sure line managers know they cannot rely on the two-year rule anymore. Document performance concerns from day one, not month 23.

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2. Zero-Hours Guaranteed Hours Rights — October 2026

Workers on zero-hours or irregular-hours contracts who work regular hours over a reference period will have the right to be offered a contract that reflects those hours.

The exact reference period is expected to be 12 weeks. Workers don't have to accept the offer — but employers must make it.

Who's affected: Any business using zero-hours workers — hospitality, retail, care, cleaning, logistics, events. Roughly 750,000 workers are estimated to be in scope.

What to do now: Audit your zero-hours workforce now. Identify workers with genuinely regular hours. Consider whether their contracts need updating before October, or whether you need to restructure how you schedule shifts.

3. Shift Notice and Cancellation Pay — October 2026

Alongside the guaranteed hours rights, workers will get new rights to:

• Advance notice of shifts — employers must give reasonable notice before scheduling shifts
• Cancellation pay — if a shift is cancelled at short notice (the threshold is still being set), workers will be entitled to compensation

This directly affects any business that cancels shifts when it gets quiet — pubs sending staff home early, retailers reducing hours during slow periods, care agencies cutting visits.

What to do now: Review your shift scheduling practices. Build in buffer time. Train managers on the incoming notice requirements before October.

4. Strengthened Collective Redundancy Rules — In Force Now

The protective award for failure to collectively consult has already doubled. Previously capped at 90 days' pay, the maximum award is now 180 days' pay per affected employee.

If you make 20 or more redundancies at one establishment within 90 days, you must consult employee representatives for a minimum of 45 days (for 100+ redundancies) or 30 days (for 20–99). Getting this wrong is now twice as expensive.

What to do now: If redundancies are on the horizon, take legal advice before announcing anything. The consultation must be meaningful, not a box-tick.

5. SSP from Day One — Already in Force (April 2026)

Statutory Sick Pay now starts from the first day of illness — the three waiting days have been abolished. This applies to all employers, regardless of size.

The lower earnings limit for SSP eligibility is also being reformed, meaning more lower-paid workers will qualify.

Cost impact: If you have staff who regularly take single-day absences, your SSP bill will increase. Factor this into your payroll modelling.

What to do now: Update your absence policy to remove references to the three waiting days. Make sure your payroll software reflects the change.

6. Paternity and Parental Leave Changes — Already in Force (April 2026)

Fathers and partners can now take paternity leave from day one of employment — no more 26-week qualifying period. They can also take it in non-consecutive blocks, and can take it any time in the first year after birth (previously the first eight weeks).

Neonatal care leave of up to 12 weeks is also now in law for parents whose babies receive neonatal care.

What to do now: Update your parental leave policy. Make sure HR and line managers know that paternity leave is now a day-one right.

7. Fair Work Agency Enforcement — Now Active

The Fair Work Agency (FWA) launched in April 2026 with powers to enforce National Minimum Wage, SSP, and holiday pay — all under one roof. It replaces HMRC's National Minimum Wage enforcement team and has broader powers, including unannounced site visits.

Hospitality, retail, and construction are the primary enforcement targets. Non-compliance with NMW carries a penalty of 200% of the underpayment, plus public naming.

What to do now: Audit your payroll. Check that every worker — including apprentices, tipped staff, and those paid by output — is receiving at least the correct National Living Wage (£12.71/hr from April 2026). Keep your holiday pay records for at least six years.

The Bottom Line

Taken individually, each of these changes is manageable. Taken together — across a business with 10, 20, or 50 employees — they represent a significant compliance load in 2026.

The businesses that stay ahead of them aren't necessarily bigger or better resourced. They're the ones that monitor changes as they land rather than catching up after an enforcement visit.

Key dates to remember:

• April 2026 (now in force): SSP day one, paternity leave day one, protective award doubled, FWA active
• 1 July 2026: Day-one unfair dismissal rights
• October 2026: Zero-hours guaranteed hours, shift notice, cancellation pay

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Frequently Asked Questions

When do day-one unfair dismissal rights start?

1 July 2026. From that date, employees can claim unfair dismissal from their first day of work. There will be a statutory probationary period process, but employers can no longer rely on the two-year qualifying period.

Does the Employment Rights Bill affect small businesses?

Yes. Most provisions apply to all employers regardless of size. The zero-hours guaranteed hours rights and day-one unfair dismissal rights in particular will affect any business with staff on flexible or zero-hours arrangements.

What is the Fair Work Agency?

The Fair Work Agency is a new government enforcement body that launched in April 2026. It enforces National Minimum Wage, Statutory Sick Pay, and holiday pay. It has powers to conduct unannounced visits to business premises.

How do I stay up to date with Employment Rights Bill changes?

ComplianceAlert monitors UK employment law changes across 16 regulators and sends plain-English alerts when something new is confirmed. Try it free for 7 days.