Two-tier workforce

Learn how UNISON is working to reduce unequal pay for workers doing the same job
Last updated: 13 April 2026

A two-tier workforce may be created when employees are transferred from the public sector (local government, the NHS etc) to the private sector (a profit-making company) and new employees get worse pay and conditions than those workers transferred from the public sector – leading to two tiers of pay and conditions.

This means there are effectively two classes of workers, working together on the same contract, one of whom gets less favourable pay and benefits.

Workers are often moved from the public to the private sector when the services they provide are outsourced.

If you think you are part of a two-tier workforce, there are steps you can take to address this with the help of UNISON. 

On this page

The disadvantages of a two-tier workforce

UNISON believes a two-tier workforce is divisive and unfair. The disadvantages include:

  • Workers performing the same tasks being treated differently by employers.
  • Worse morale which may have affect service quality.
  • Wages being driven down for everyone.
  • Turnover of staff, particularly among less well paid, newer employees. 

Who is most commonly affected?

While all kinds of workers in all kinds of jobs can find themselves part of a two-tier workforce, women and low-paid workers are two groups that are most frequently affected.

UNISON wants to reduce differences in the wages of workers doing similar jobs. The union has proposed a fair wages resolution as a solution to the two-tier workforce, which could define national rates of pay for different types of work. 

The two-tier workforce and the law

Local and central government employees transferring from the public sector have their pay and conditions protected by regulations known as TUPE, or the Transfer of Undertakings (Protection of Employment) Regulations of 2006 to give them their full name.

In Northern Ireland, there are additional provisions called the Service Provision Change (Protection of Employment) Regulations (Northern Ireland) 2006.

In 2010, the government got rid of the Code of Practice on Workforce Matters in Public Service Contracts, better known as the two-tier workforce code. and replaced it with six Principles of Good Employment Practice. These principles are supported by government, but they are voluntary.

One principle states that when a ‘supplier’ – or private sector company – employs new recruits who work alongside former public sector workers, they should have fair and reasonable pay, terms and conditions.

The principles encourage consultation with trade unions on workforce training and development issues.

They also highlight that contracting organisations should make sure that supplier policies and processes are compliant with the Equality Act (similar issues are addressed in Northern Ireland by section 75 of the Northern Ireland Act 1998). 

However, following UNISON’s campaigning, the Employment Rights Act 2025 aims to strengthen the position by re-introducing the guiding principles behind the ‘Two-tier workforce code’. 

The Government now has powers to make regulations specifying the provisions to be included in outsourcing contracts. 

While we are awaiting the specific regulations to be set out, the intention is that where public services are outsourced, the contractor’s workers and the public sector workers are not treated any less favorably than each other.   

What to do next

  • 1 If you are being paid less than a colleague doing the same job, contact your UNISON rep for advice and support. They may also be able to help you raise a grievance.
  • 2 If a workplace is subject to the Transfer of Undertakings (Protection of Employment) Regulations (TUPE), UNISON can help members who find that their new employer is offering them different terms and conditions than they had previously.
  • 3 UNISON encourages members who are part of a two-tier workforce to organise and recruit new members to strengthen their voice and increase their bargaining power.

Frequently asked questions

Legal disclaimer 


The information contained within this article is not a complete or final statement of the law and is based on the laws of England, Wales, Scotland and Northern Ireland. 


While UNISON has sought to ensure that the information is accurate and up to date, it is not responsible and will not be held liable for any inaccuracies and their consequences, including any loss arising from relying on this information. If you are a UNISON member with a legal problem, please contact your branch or region as soon as possible for advice, or for non-employment matters call UNISONdirect.