Your Clients Will Ask for Your Carbon Plan in 2026 — Are You Ready?

The Supply Chain Ripple Effect

You may never bid for a government contract. You may not even know what PPN 006 stands for. But if your customers do — and if they are being asked about their supply chain emissions — then you will be hearing from them soon. Many businesses already have.

The logic is straightforward. When a large company reports its Scope 3 emissions, the biggest category is almost always purchased goods and services (Category 1). That means the emissions embedded in everything they buy from their suppliers — from IT services to cleaning contracts to raw materials. To reduce those emissions, they need their suppliers to reduce theirs. And that means asking you for your carbon data.

Who Is Already Asking?

This is not a hypothetical future scenario. Major UK organisations are already requiring carbon reduction plans from their supply chains:

• FTSE 100 companies — virtually all now have Scope 3 reduction targets, and supplier engagement is a key lever. If you supply a listed company, expect questionnaires
• NHS Supply Chain — healthcare procurement is increasingly weighted towards suppliers with environmental credentials
• Tier 1 government contractors — companies like Capita, Serco, and Fujitsu are flowing down CRP requirements to their subcontractors
• Construction — the Construction Leadership Council’s CO2nstruct Zero programme is driving carbon requirements through the construction supply chain
• Financial services — banks and insurers with Net Zero commitments are assessing financed and insured emissions, which means asking portfolio companies for data

The CDP Supply Chain Programme

The CDP (formerly the Carbon Disclosure Project) runs a supply chain programme through which large companies formally request environmental data from their suppliers. Over 280 major buyers — with a combined procurement spend of over US$6.4 trillion — use CDP to engage their supply chains on climate data.

If you receive a CDP questionnaire from a customer, it is not optional in the way it might seem. While there is no legal obligation to respond, failure to do so is noted. Customers can see which suppliers responded and which did not. Many use response rates as a factor in procurement decisions and supplier retention reviews.

What Your Clients Actually Want

When a client asks about your carbon credentials, they typically want to see:

• A published carbon reduction plan on your website
• A baseline footprint with Scope 1, 2, and 3 breakdown
• Measurable reduction targets
• Evidence of specific actions you are taking

They are not asking you to be carbon neutral tomorrow. They want to see that you have measured your impact, set targets, and have a plan. That is the difference between a business that is on the journey and one that has not started.

The Competitive Angle

Here is the part that most people miss: having a carbon reduction plan is not just a compliance burden. When your competitor does not have one and you do, you win. When two suppliers offer similar pricing and capability, the one with environmental credentials gets preferred. When a client needs to demonstrate Scope 3 progress to their own stakeholders, they will consolidate spend with suppliers who make that easy.

We are seeing this pattern across every sector. The businesses that act now — before their clients force the issue — are the ones positioning themselves for preferred supplier status in 2026 and beyond.

Get Ahead of the Request

Don’t wait for the email from your biggest client asking for your carbon data. Have it ready. A Carbonhogs plan gives you everything you need: a professional carbon reduction plan calculated using DEFRA 2024 factors, ready to publish on your website and share with clients. Just £99, it takes 10 minutes, and it could protect your most important commercial relationships.