The Voluntary Carbon Market has surged in recent years, offering UK farmers and landowners potential new income streams for adopting climate-friendly practices. However, for many, the path to accessing this market remains unclear.
Farm Carbon Toolkit have produced a report that aims to demystify the Voluntary Carbon Market (VCM), providing an overview of carbon credit types, scheme integrity, and the risks involved, helping you weigh the potential benefits against the challenges before participating. Some of the topics in the report are summarised below, for more detail read the full report.
Click to download your copy of the report. © Farm Carbon Toolkit, 2025
The VCM: A Climate Finance Mechanism
The VCM is a decentralised platform where companies, individuals, and organizations can purchase carbon credits to offset their emissions. Each credit represents a reduction or capture of emissions equal to one metric tonne of CO2 equivalents (CO2e).
Since agriculture is currently excluded from the Compliance Carbon Market (CCM) in the UK (like the UK Emissions Trading Scheme), the VCM is the primary venue for activities that remove and store carbon in biomass and soils through sustainable agricultural activities or nature projects.
Types of Carbon Credits
To generate credits for most schemes, you’ll first need to accurately baseline your operations. Credits are generated based on the measurable change from that baseline. These credits typically fall into three categories:

Carbon removal projects tend to fetch higher payments per tonne of CO2e because they actively remove carbon. However, they demand a high level of monitoring and verification, often requiring direct soil measurements at five-year intervals to evidence the permanence of carbon stocks.
Process of setting up a VCM project

Offsetting vs. Insetting: Which Path is Right for You?
A scheme that generates carbon credits that are sold outside of your value chain is known as carbon offsetting. However, an alternative has emerged in recent years, whereby climate friendly farming is financed by actors within your value chain. This is known as carbon insetting and is not considered to be part of the VCM, however we discuss it within the report to provide a full picture of what initiatives are available to farmers and landowners. Therefore a key decision involves who buys your credits:
- Carbon Offsetting: This involves generating carbon credits and selling them outside of your value chain to unrelated buyers (e.g., a telecoms provider). This is considered ‘Beyond Value Chain Mitigation’ (BVCM).
- Carbon Insetting (or WVCM): This is where a farm’s supply chain (like a processor or retailer) finances carbon improvements on the farm. Although not technically part of the VCM, insetting projects are often thought to offer the most promising avenue for successful, transparent, and verifiable climate impacts. Some carbon insetting schemes will produce carbon credits, however most, particularly with your direct downstream supply chain, will not.
Insetting allows both the farmer (Scope 1) and the supply chain company (Scope 3) to reflect the reductions or removals in their GHG inventories. These projects are believed to strengthen supplier relationships and enhance credibility due to improved traceability. The set up of these schemes may not look like other carbon offsetting schemes and are likely to not produce credits but provide direct value, see section 1.4 in the report for more detail.
Navigating the Risks and Ensuring Integrity
Participation in offsetting schemes comes with crucial risks that farmers must assess:
| Risk | Description |
| Price Volatility | Fluctuating carbon credit prices may not always cover the costs of significant management shifts. |
| Long-term Contracts | Commitments can range from 3 to 50 years, potentially restricting future land-use choices. |
| Carbon Reversals | Carbon gains can be lost through natural disasters, unpredictable weather, or mismanagement. Schemes often use a central buffer pool to insure against these losses. |
| Additionality | Projects must prove that reductions/removals would not have happened without the project, which can often exclude early adopters of sustainable practices. |
| Leakage | An emissions reduction in one area causes an increase elsewhere (e.g., repurposing grain land leads to grain being grown elsewhere). |
| Reputational Risk | Farmers face potential reputational damage if their credits are linked to corporate ‘greenwashing’. |
To instill confidence and integrity in the VCM, farmers should look for schemes that adhere to the highest standards. The Integrity Council for the Voluntary Carbon Market (ICVCM) has developed the Core Carbon Principles to help buyers identify high-integrity credits. These principles ensure that credits create real, additional, and verifiable climate impact. The ICVCM publishes online what carbon standards and their methodologies align with the core carbon principles, however most are still undergoing review.
It is also vital to practice responsible reporting. If you sell a carbon credit, you can no longer claim that reduction or removal toward your own business’s net-zero targets, as this would constitute double counting.
UK Projects and Finance Alternatives
There are a number of schemes available in the UK agricultural sector for a diverse array of activities including; regenerative practices in arable farming, woodland creation, peatland restoration, feeding cows alternative natural feeds and directly measured increases in soil organic carbon (see Table 4 in the report for further details).
The established, government-backed standards like the Woodland Carbon Code (WCC) and the Peatland Carbon Code (PCC) provide clear methodologies for carbon removals and reductions associated with these land management activities. While there was investigation into a potential UK Farm Soil Carbon Code, we provide an update on why it is no longer under development, alongside other UK carbon codes such as the Hedgerow carbon code in Box 1.
Beyond the VCM, farmers can access other income streams for sustainable farming and environmental land stewardship:
- Government Schemes: Examples include the Improved Sustainable Farming Incentive (SFI) in England (set to open early 2026), Scotland’s Agri-Environment Climate Scheme (AESC), the Sustainable farming scheme (SFS) in Wales and Northern Ireland’s Farming with Nature Transition Scheme (FwNT).
- Biodiversity Net Gain (BNG): Developers pay land managers to create or enhance habitats to offset ecological impacts. An example of the type of finance available from a BNG project is provided in Box 3 in the report.
Key Takeaways for Farmers
Before entering the VCM, we advise the following recommendations:
- Scrutinise Schemes: Employ a high level of scrutiny and look for schemes that follow the ICVCM’s Core Principles or Oxford Offsetting Principles.
- Know Your Buyer: Ask who will purchase the credits to determine if it aligns with offsetting or insetting, and whether this aligns with your values.
- Investigate Full Costs: Determine the complete costs of participation, including monitoring and verification services, as these can impact your net revenue.
- Measure Now: Even if you are undecided about selling credits, there is no better time to start measuring the carbon in your soils.
- Avoid Double Counting: If you sell a carbon credit, you can no longer claim that reduction or removal towards your own business’s net-zero targets.
- Retain Credits: Consider retaining any generated credits to meet your own farm’s net-zero targets.

This work was funded by the Centre for High Carbon Capture Cropping (CHCx3). CHCx3 is a multi-partner research project helping UK farmers to increase carbon capture and farm resilience through diversified cropping, enabling new income sources and supporting enhanced value chains for industries.
CHCx3 is funded by Defra under the Farming Futures R&D Fund: Climate Smart Farming (project 10042535). It forms part of Defra’s Farming Innovation Programme, delivered in partnership with Innovate UK.
For more information about carbon credits and the Voluntary Carbon Markets in farming check out our popular piece on getting paid for carbon.





























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