How to Price Carbon Credits for Sale

Setting an asking price is the decision sellers ask us about most. Price too high and a good lot sits unsold while its vintage ages. Price too low and you leave money behind that the project may need for its next monitoring round.

There is no exchange that publishes one official price for voluntary carbon credits. Each lot is valued on its own features, and two projects of the same type can trade far apart. What follows is the way we suggest sellers think it through. We deliberately give no figures: prices move, and a number in an article goes stale faster than the principles do.

Start with what the buyer is paying for

A buyer is not paying for a tonne in the abstract. They are paying for a tonne they can defend to an auditor, a board, a regulator or the press. Every factor below is a variation on one question: how easy is it for the buyer to use this unit for their purpose and stand behind it later?

The factors that move your price

Project type: removal, reduction or avoidance

Each listing records whether the project removes carbon (a mangrove restoration, say), reduces emissions (a methane capture unit at a sugar mill), or avoids them (grid-connected solar displacing coal power). Many corporate buyers now prefer removals for net-zero claims and will pay more for them. Avoidance credits from large renewable projects face more questions about additionality, the test of whether the project would have happened anyway, and usually sit lower.

If your project is a reduction or avoidance project, you are not out of the market. You compete on other factors instead.

Vintage

Newer vintages generally command more than older ones. Buyers worry that older reductions reflect outdated baselines, and many have a policy cut-off year. For CORSIA, units must fall inside an eligible vintage window, so a vintage outside it is simply not an option for an airline, whatever the price.

If you hold several vintages, price them separately as different lots. A single blended price for all years makes the older units look better than they are and the newer ones look cheaper than they should.

Standard and methodology

The standard behind the units and the methodology version both affect demand. Some buyers accept only certain programmes. A methodology that has been revised or questioned recently can weigh on price even if your project followed it correctly. Be ready to explain why your project's application of the methodology is sound.

Co-benefits and SDG evidence

Listings show the UN Sustainable Development Goals a project supports. A cookstove programme that cuts indoor smoke for rural women, or a forestry project that provides income to tribal communities, can earn a premium from buyers who want a story beyond carbon. The premium depends on evidence: a certified label or measured outcomes count for much more than a claim in the project description. Our page on SDGs and co-benefits covers how buyers weigh these.

CORSIA eligibility and authorisation

Units that meet CORSIA's rules, including a host-country authorisation and corresponding adjustment for the current phase, are in a separate and narrower market. Airlines need them to meet a legal obligation, and supply has been limited. These units generally trade above otherwise similar voluntary units.

If your units are authorised, say so clearly and price accordingly. If authorisation is pending, do not price as though it is granted. You can list now at a voluntary-market price and revisit the lot once the letter arrives.

Volume and lot size

Large lots attract large buyers, who expect a volume discount. Small lots suit buyers with modest needs, who are often less price-sensitive per tonne. Splitting a big holding into a few lots of different sizes lets you serve both.

Delivery type

Spot units, ready to transfer now, carry no delivery risk and are priced accordingly. Forward units, which do not exist yet, carry the risk that issuance comes late or short, so buyers expect a discount for taking it on. How large that discount is depends on how far away issuance is and how solid the project's track record looks. See forward sales and offtake agreements for more.

A simple way to work through it

1. Look on the marketplace for listings of the same category, project type and delivery. Where prices are public, note them as a rough reference point, remembering they are indicative.
2. List where your lot is stronger (newer vintage, authorisation, better SDG evidence) and where it is weaker.
3. Set a figure that reflects that comparison, and decide the lowest price you would accept before any buyer asks.
4. Decide whether to show the price publicly or keep it on request. Public prices draw quicker enquiries; on-request suits lots where you expect to negotiate.
5. Revisit the price if a lot has had no serious interest after a reasonable period.

Price is confirmed later, not at listing

Whatever you enter, the price on a listing is indicative. It becomes firm only when the desk confirms availability, vintage, registry details and eligibility in writing with the buyer. That gives both sides room to adjust once due diligence has been done, and protects you from committing to a price before you know who the buyer is and what they need.

Mistakes that cost sellers

• Pricing CORSIA-eligible when the authorisation has not been granted.
• Anchoring to a headline price seen in the news for a very different project type.
• Refusing to discount older vintages until they become hard to sell at all.
• Showing a public price that is well above what you would accept, which puts off buyers who would have paid a fair figure.

If you would like a second opinion on a lot before you list it, speak to the desk; when you have settled on a number, add it on the seller intake form.