Carbon Credit Red Flags (2026): 7 Warning Signs of Over-Credited Projects for Indian Buyers
A carbon credit is only worth what it actually removes or avoids. For an Indian sustainability lead or CFO, that makes the purchase decision less about the headline price and more about whether the project behind the credit is real. Independent research has shown that the gap between credits issued and emissions actually reduced can be large. This guide gives you seven red flags to check before you sign, and what to ask for in each case.
Why red flags matter more than price
A 2024 study in Nature Communications by Probst and colleagues, summarised by the Max Planck Institute for Innovation and Competition, reviewed 2,346 crediting projects across 14 studies. It found that less than 16% of the credits issued to the evaluated projects represented actual emission reductions. The share varied by project type: 11% for clean cookstoves, 16% for SF6 abatement, 25% for avoided deforestation and 68% for HFC-23 reduction.
A cheap credit that does not deliver a real tonne is the most expensive purchase on your books: you pay for it, and you still carry the claim risk.
These are averages across the studies reviewed, not a verdict on every project. They do show why buyers need a screening routine. Our guides on how verification works and on what makes a credit high integrity cover the underlying framework; this post is the quick-scan version.
Seven red flags to check before you buy
Weak additionality. Ask whether the project would have happened without carbon revenue. Projects that were already commercially viable or legally required are the classic case. In August 2024 the Integrity Council for the Voluntary Carbon Market (ICVCM) decided that credits from the current renewable energy methodologies it assessed are ineligible for its CCP label because they failed additionality tests. If you are looking at grid-connected wind or solar, read our guide to buying wind and solar credits in India.
Inflated baselines. Over-crediting often starts with an assumption: how much wood would have been burned, how much forest would have been cut, how many hours a stove would have been used. Ask to see the baseline, the data behind it and whether the methodology has been revised recently.
Unclear issuance and retirement trail. Every credit should have a serial number on a recognised registry, with project, vintage and status visible. A seller who only sends a PDF certificate is not giving you proof. See our checks for double counting.
Permanence gaps. For tree-based and soil projects, ask how reversal risk is handled and whether a buffer pool backs the credits. Our note on buffer pools and reversal risk explains what to look for.
Thin or missing co-benefit evidence. Claims of community benefit should rest on documented monitoring, not brochures. For cookstoves in particular, ask for usage-monitoring data; our cookstove buyer checklist lists the questions.
No independent view of quality. Third-party ratings from agencies such as BeZero, Sylvera and Calyx can add a second opinion. They do not replace your own diligence, and agencies can differ. See how the rating agencies compare.
Price far below the market for that project type. A quote well under comparable credits deserves questions about vintage, methodology, buffer share and whether the seller actually holds the credits. Ask for the registry account holding them.
A quick screening routine for your team
You do not need a large team to apply this. A procurement lead and a sustainability analyst can screen a shortlist in a few days if the questions are standard.
Ask each seller for the registry project page, methodology name and version, vintage and serial-number range.
Check whether the credits carry a CCP label or are in a CCP-eligible category; confirm this against the ICVCM site, since decisions are updated over time.
Request the latest verification report and the name of the validation and verification body.
Ask whether a corresponding adjustment or Article 6 authorisation applies, and whether the credits are exposed to double claiming.
Write the findings into a one-page note for your approval committee, using the structure in our RFP template.
What to put in the contract
Screening reduces risk, but the contract is where you allocate what remains. Ask for a warranty that the credits are validly issued and not sold twice, a replacement or refund clause if a registry cancels or invalidates them, delivery only on retirement in your name or your nominee's name, and the right to audit supporting documents. The eight clauses we outline in our purchase agreement guide are a good starting point.
Be careful about what you claim
Even a strong credit does not make an unlimited claim safe. Describe what you did in plain terms, for example that you retired a stated number of verified credits against residual emissions, and avoid language that suggests your products or operations are neutral unless you can fully support it. Regulatory details around India's carbon market and claims rules continue to evolve, so please confirm current requirements against the official notifications and the registry rules before you finalise a purchase.
Where Csquare fits
Csquare helps Indian companies screen projects, compare registries and ratings, and structure purchases so that the paperwork stands up to audit. If you would like a second pair of eyes on a shortlist before you commit budget, get in touch with our team.
Comments