The NHS has committed to reaching net zero by 2045. From April 2027, enhanced ESG reporting requirements will apply to contracts worth £5 million or more. If you supply goods or services to the NHS, this is not just about compliance. It is about protecting your revenue, staying eligible for future tenders, and building competitive advantage. Here's what you need to know to prepare.
The NHS has committed to reaching net zero by 2045 for the emissions it influences through purchasing decisions, and supplier sustainability requirements have been steadily increasing since 2022. If you supply goods or services to the NHS, these changes already affect your business and will become even more significant over the coming years.
The next major milestone arrives in April 2027, when enhanced ESG reporting requirements will apply to higher-value contracts. However, this is not simply another compliance requirement. It is about protecting revenue, maintaining eligibility for future tenders and strengthening competitive advantage in a market where sustainability expectations continue to grow.
The good news is that organisations that start preparing now have time to establish governance, engage suppliers, improve data collection processes and identify cost and carbon reduction opportunities before the new requirements take effect.
In this guide, we explain what is changing, who will be affected, and the practical steps NHS suppliers can take to prepare.
April 2027 marks a significant shift in NHS sustainability requirements. But the NHS is introducing this change proportionately, not with a one-size-fits-all approach.
Enhanced reporting requirements will apply to:
Lower-value contracts above the relevant procurement thresholds will generally continue to use the existing 2024 Carbon Reduction Plan requirements.
If your contract meets the higher threshold, you will need to publish a Carbon Reduction Plan that covers global Scope 1, Scope 2 and Scope 3 emissions, set clear reduction targets and commit to net zero by 2050 or earlier.
The enhanced 2027 requirements go further than the 2024 baseline. You will need to assess all 15 Scope 3 categories defined by the GHG Protocol, not just the five most common ones. For most organisations, Scope 3 emissions account for 80 to 90 per cent of total emissions, making this the biggest challenge in your reporting.
Organisations that prepare now will have a significant advantage. You will establish the governance and data collection systems you need, rather than scrambling at the last minute.
The April 2027 requirements sit within a structured roadmap that spans from 2022 through to 2030 and beyond. Understanding which milestones have already passed, and which are still to come, will help you assess whether your organisation is on track and identify any gaps that need addressing.
Completed milestones:
Upcoming milestones
This roadmap demonstrates that NHS sustainability requirements are not new. They have been evolving for several years and will continue to develop over the coming decade. Suppliers that have not yet started preparing should review previous requirements alongside future obligations to understand where action may already be needed.
A Carbon Reduction Plan is not simply an emissions inventory. It is a strategic document that demonstrates your commitment to reducing greenhouse gas emissions and managing climate risk.
Your plan must include:
One of the most significant shifts in the 2027 requirements is the move towards global reporting boundaries. If your organisation has international operations or global supply chains, you must include relevant emissions connected to your NHS supply activity, even if that activity happens outside the UK.
Many organisations currently focus on five Scope 3 categories. The enhanced requirements ask you to assess all 15 categories defined by the GHG Protocol. You must report on every category that is relevant to your business. Where you exclude categories, you must provide clear justification.
This is where most organisations face their biggest challenge. Scope 3 data is dispersed across suppliers, logistics providers, manufacturers and service partners. It often arrives in different formats. Some of your suppliers may not yet measure emissions. Responses can take months. Supplier engagement becomes the critical path in delivering your ESG programme.
Complying with a 2027 NHS Carbon Reduction Plan also ensures you meet the requirements of PPN 006 (Procurement Policy Note 006), taking you further ahead of the curve.
The NHS guidance on net zero commitments is clear: suppliers must demonstrate a genuine strategic commitment to achieving net zero by 2050 or earlier. This is not a tick-box exercise.
Your commitment should be supported by:
If you operate within a larger corporate group, review your reporting structure early. In some circumstances, parent-company Carbon Reduction Plans can satisfy NHS requirements. However, the NHS-supplying entity must be clearly covered by the commitment, reporting boundary and reduction measures.
Ambiguity creates risk. Clarify your position early so you do not face challenges from NHS procurement teams later.
Carbon emissions are a major focus of NHS requirements, but the NHS is increasingly looking at broader sustainability performance. Organisations should also consider how they are addressing:
The NHS expects to see clear decision-making structures, accountability and senior leadership engagement in sustainability performance.
Demonstrate that you manage supply chain risks responsibly, including modern slavery due diligence, responsible sourcing and fair labour practices.
Show how your organisation creates positive outcomes for communities and society, not just financial returns.
Be open about both progress and challenges. The NHS values suppliers that communicate honestly about their sustainability journey.
Transparency around supply chains, labour practices and risk mitigation measures is becoming increasingly important within procurement processes.
Suppliers that approach sustainability holistically will be better positioned for future NHS procurement expectations. The goalposts are continuing to move, and organisations that prepare now will be better equipped to respond.
The Evergreen platform is the NHS’s standardised online tool for suppliers to share sustainability information and receive a sustainability maturity assessment.
Evergreen is not currently a scored requirement across all NHS contracts. However, it is required in certain procurement routes, including NHS Supply Chain Frameworks and some medicines tenders. As the market evolves, expect it to become more widely used.
Level 1 focuses on the basics: Carbon Reduction Plans, emissions reporting and a net zero commitment.
Level 2 introduces broader global reporting expectations and more comprehensive Scope 3 assessment.
Level 3 includes independently validated targets and modern slavery assessment requirements.
Level 4 represents advanced sustainability maturity, with enhanced supply chain transparency and robust risk management.
Consider where your organisation sits on this maturity curve. Even if Evergreen is not currently required for your contract, improving your score will strengthen your sustainability credentials and competitive position.
To help you plan, here is what happens when.
Designate a clear ESG project owner with cross-functional authority. Build the data collection infrastructure you need. Engage your suppliers and partners to understand their emissions. Begin establishing your baseline emissions inventory.
Publish your first enhanced Carbon Reduction Plan. Assess all 15 Scope 3 categories relevant to your business. Meet the global reporting boundary requirements.
Product-level environmental data becomes a requirement. This requires deeper supply chain engagement and more granular data collection.
The NHS will expect to see that you are making real progress towards your net zero targets. Annual updates, published targets and transparent reporting become the norm.
Most organisations understand the requirements. The challenge is execution.
Scope 3 emissions data is dispersed across your supply chain. Your logistics provider has some of it. Your manufacturers have more. Your service partners have other pieces. Data arrives in different formats. Some suppliers do not yet measure emissions. Coordination takes time and patience.
This is why clear ownership matters.
Every organisation should designate a clear ESG project owner with cross-functional authority. However, operational ownership alone is not enough. The NHS expects board-level oversight and approval.
This is a business leadership issue, not just a sustainability team responsibility. Engaging your Board early, securing their commitment and their approval of your Carbon Reduction Plan sends a clear signal internally that this is strategic.
The NHS recognises that smaller suppliers and voluntary, community and social enterprises (VCSEs) may face barriers when collecting emissions data and developing reporting capabilities.
Guidance and proportionate approaches are available. However, early preparation remains essential. Smaller suppliers should begin building their reporting capability now, rather than waiting until 2027.
The good news is that suppliers of all sizes can prepare. The challenge is not understanding the rules. The challenge is execution. Starting early gives you the runway you need.
Your Carbon Reduction Plan is not a one-off document. You must review it annually, update your emissions data, refresh your reduction initiatives and maintain public availability on your company website.
Sustainability reporting should form part of your wider governance and bid-readiness processes. Make it routine, not reactive. Build it into your annual planning and reporting cycles.
The NHS will return to your plan and check that you have made progress. They will want to see that your targets are credible, your reduction initiatives are delivering results, and you are communicating openly about your journey.
Some organisations have mature sustainability teams and the capability to manage ESG reporting internally. Others may benefit from external support.
Consider external specialists if:
External specialists can help you establish methodologies, coordinate supplier engagement, verify your emissions calculations and ensure alignment with NHS requirements. They can also provide the governance and assurance that strengthens your board-level commitment.
The choice is yours. But preparing now, whatever route you choose, is what matters.
Start a conversation with your leadership team about who will own ESG reporting. Make it a formal responsibility with clear time allocation.
The best candidates are typically:
Give them the authority to access data across the organisation and coordinate with external suppliers and partners.
Consider whether you have sufficient resource available to meet NHS requirements alongside existing day-to-day responsibilities. Even where the necessary expertise exists within the organisation, ESG reporting can place significant demands on teams that are already managing competing priorities.
Ask yourself:
Being realistic about resource requirements now will help avoid delays as reporting requirements become more demanding.
If you need support, we work with NHS suppliers to develop customised ESG reporting strategies. We help you collect and verify emissions data, implement reporting frameworks and identify carbon and cost reduction opportunities.
We start with a conversation. We want to understand your specific situation: which ESG requirements apply to your business, what is your timeline, what is your current maturity level and what are your biggest challenges?
From there, we build a plan that works for you.
Speak to our specialists about developing your ESG reporting strategy. We help NHS suppliers navigate these requirements with confidence.
Enquire about our ESG reporting support service.
ESG Lead