Employment Rights changes 2026: What PE-backed leaders need to know 

Twenty-eight separate changes to UK employment law are landing within twelve months, and unlike previous reforms, which tended to focus on one issue at a time, this wave cuts across hiring, firing, pay, trade unions and enforcement all at once. Employment Rights changes (2026-2027) are still moving, too: the ban on fire and rehire has already slipped from an October 2026 start date to January 2027. 

For most businesses, this is a compliance exercise HR can absorb quietly. For PE-backed businesses, it isn’t. These changes reach the P&L, surface in due diligence, and belong on the board agenda, because the things that make PE distinctive – fast decision-making and integration programmes running alongside tight growth targets – are exactly what make this legislation harder to absorb than it would be for a typical business. 

This is the widest-reaching employment legislation in five decades. We recently partnered with PepTalks to brief PE-backed leaders on what’s coming, and we know the pressure first-hand: we’re PE-backed ourselves, and have completed 19 acquisitions in the last three years. Here’s where the risk concentrates, and what good preparation looks like. 

Employment rights changes 2026: 6 areas of exposure

1. Collective redundancy risk.

From April 2026, protective awards for failing to properly consult on a collective redundancy doubled from 90 to 180 days’ pay per affected employee. Post-acquisition restructuring is exactly where this bites: headcount rationalisation collides with budget deadlines that push teams to compress consultation timelines, and tribunals don’t accept commercial urgency as an excuse. For a 200-employee business, a failed process now carries a liability of £3m–£6m, before legal costs, and before it surfaces in a live deal.

2. Fire and rehire.

Dismissal and re-engagement become automatically unfair from January 2027, except in narrow cases of genuine financial distress. This matters because fire and rehire has historically been the fallback PE deals leaned on to harmonise terms after an acquisition, offer new terms, and hold dismissal in reserve if someone refuses. From January, that fallback disappears. Negotiation periods expected to run six months could stretch to twelve or eighteen, and boards should revisit synergy forecasts built around faster harmonisation timelines.

3. Unfair dismissal and day-one rights.

The headline change: the unfair dismissal qualifying period drops from two years to six months. Because it’s based on length of service, anyone hired from July 2026 is already accruing toward protection that takes full legal effect in January 2027. Combined with the removal of the compensation cap earlier this year, this hits PE hardest of all; businesses that hire at pace (often 20–40+ people a year) now have an assessment window eighteen months shorter to work out if a hire isn’t right.

4. The Fair Work Agency and holiday pay.

A new enforcement body became operational in April 2026, with power to investigate without waiting for a complaint, and civil penalties that include imprisonment in serious cases. Records must now be kept for six years, not two. Complex, multi-payroll portfolios inherited through acquisition are exactly the conditions this agency is built to find, and holiday pay errors, typically £500–£2,000 per employee, add up fast across a workforce.

5. Trade union access.

From October 2026, trade unions get a statutory right to access a business, in person or via internal email, regardless of whether it’s currently unionised. Refusal isn’t viable: penalties start at £75,000 and rise to £500,000 for repeated non-compliance. The stronger play is proactive employee voice and transparent communication before a union shows up, since resistance tends to accelerate interest rather than head it off.

6. Preventing sexual harassment.

From October 2026, employers carry a proactive duty to take all reasonable steps to prevent sexual harassment, including from third parties like clients and contractors. Failing to meet that duty adds a 25% uplift to any compensation awarded. PE environments carry specific exposure here: client entertainment, investor events, off-sites, and seniority gaps between senior leaders and junior staff.

Why PE gets hit hardest with employment rights changes 2026

None of this is really about any single change. Workforce restructuring needs the same governance discipline as financial or regulatory risk, not a process HR runs quietly in the background. 

The Institute of Directors has found that 86% of business leaders expect these changes to hurt UK growth, and 63% expect to hire fewer staff as a result. For PE-backed businesses specifically, the sharper cost usually isn’t the direct penalty; it’s what happens in the deal itself: diligence issues that chip away at price, integration delays that hit EBITDA, and culture or governance gaps that reduce exit attractiveness. 

employment rights changes 2026: What does good preparation look like?

Faced with 28 changes on staggered deadlines, the instinct to freeze is understandable, but the response that will help in the long run is to prioritise. Our advice would be: 

• Audit payroll and holiday pay: standardise records and document how calculations are reached, especially across acquired businesses, ahead of Fair Work Agency scrutiny. 
• Strengthen management capability: trained managers who can have early, honest performance conversations are the front line of a defensible dismissal process. 
• Report workforce risk to the board: with the same regularity as financial and regulatory risk, so exposure is visible before it surfaces in a deal. 
• Watch the European angle: groups with EU operations should track the incoming EU Pay Transparency Directive alongside the UK changes. 

The businesses that get ahead of this now will spend the next eighteen months managing the detail. The ones that wait will spend it managing the consequences. 

How AAB can help

To find out more about how these Employment Rights changes (2026-2027) will affect PE-backed businesses, or how to best prepare your business for the remaining changes, please do not hesitate to get in contact with Natalie O’Hare, Louise McCosh, a member of our People team, or your usual AAB contact.  

This article draws on a masterclass we held in partnership with PepTalks.