The Carbon Credit Market in 2026: What Changed

After the credibility crises of the early 2020s, the obituaries for the voluntary carbon market were premature. 2026 is shaping up as the year the market grew up: demand is hitting records, the United Nations is finally issuing its own credits, and buyers are holding purchases to standards that would have been unthinkable three years ago. The supply of genuinely high-quality credits is still constrained, prices still swing wildly between credit types, and the first UN-issued credits are already mired in controversy. But the direction of travel is unmistakable.

How big is the market, exactly

Ask four analysts and you get four answers, all pointing up. Roots Analysis puts the 2026 market at about $1.7 billion, growing from $1.6 billion in 2025 toward nearly $47.5 billion by 2035. The Business Research Company estimates $2.29 billion for 2026 on 21.5 percent annual growth, reaching $4.92 billion by 2030. Mordor Intelligence sees $2.83 billion in 2026 rising to $7.06 billion by 2031. Regreener lands at $3.04 billion, still expanding above 20 percent a year. The methodologies differ, but nobody is forecasting shrinkage.

The activity data backs the optimism. Bloomberg reports that companies retired more credits in the first half of 2025 than in any previous period, and over $10 billion was committed to new credit generation, three times the 2024 level. More than 6,200 companies are now pursuing science-based climate targets, forming a buyer base that treats offsets as a line item rather than a PR exercise. Capital is flowing into project pipelines at record levels even as buyers get pickier about what they will actually purchase.

What buyers actually get

A carbon credit is a certificate for one metric ton of CO2 equivalent, either removed from the atmosphere or prevented from entering it. When a company buys and retires a credit, it is taken out of circulation so it cannot be resold or double counted. That is the theory. In practice, what a buyer gets depends enormously on the credit type.

The market now sorts credits along a durability spectrum, and prices follow it. Short-lived removals like reforestation trade around $10 to $30 per ton. Biochar, a long-lived removal, sits near $135. BECCS averages about $220, enhanced rock weathering about $350, and direct air capture with storage averages about $516 across disclosed deals, per CDR.fyi data compiled in October 2026. Avoidance credits, such as protecting forests that might otherwise be cleared, can trade for single digits, which is why the cheapest credits attract the most skepticism.

How buyers purchase is changing too. Instead of picking up cheap spot credits, serious buyers increasingly sign multi-year offtake agreements directly with removal projects, locking in supply and giving developers the revenue certainty to build. Microsoft's 45-million-plus tons of contracted removal is the extreme example, but the pattern runs through the whole market: forward contracts for high-durability removal are where the growth is.

The market is becoming more selective, more credible, and more competitive, all at once. The era of the $3 mystery ton is ending.

The integrity overhaul

The market's near-death experience came from scandals over credits that did not represent real climate benefit: inflated baselines, phantom forests, double counting. The response has been a slow rebuild of the plumbing. The Integrity Council for the Voluntary Carbon Market and its Core Carbon Principles now give buyers a quality benchmark that did not exist a few years ago, and registries have tightened verification.

The bigger shift is the arrival of the Paris Agreement Crediting Mechanism under Article 6.4, a UN-supervised market a decade in the making. Its Supervisory Body has set rules requiring baselines to start below business as usual, with minimum annual tightening, plus a dedicated buffer pool against reversals for nature-based projects. In February 2026 it issued its first credits, to a biomass cookstove program in Myanmar, and the honeymoon lasted about eight months: in October 2026, at least 130 civil society organizations urged the Supervisory Body to suspend those credits over environmental integrity, verification, and human rights concerns, given conditions in Myanmar since the 2021 coup. High-integrity process does not guarantee high-integrity outcomes, and the mechanism is learning that in public.

Governments are voting with procurement. Germany launched a tender for up to 1.1 million Paris Agreement-compatible credits to cover federal travel and institutions, with offers due November 3, 2026, and the mechanism added a methodology for grid-connected renewable electricity this year. The compliance and voluntary worlds are converging, but on compliance's terms.

What changed for buyers this year

The most telling shift of 2026 is who sets the quality bar. Voluntary buyers increasingly borrow standards written by governments rather than registries. When the European Commission proposed Article 6 eligibility as the quality bar for credits that airlines buy under CORSIA, the aviation offsetting scheme, eligible prices rose roughly 30 percent within a week, and buyers with no aviation obligation at all started using Article 6 eligibility as their own floor. Nature-based credits are feeling the new rules first, as methodologies for cookstoves and forests absorb reversal-risk deductions that developers warn will materially cut the credits they receive.

For a buyer entering the market today, the practical advice writes itself. Cut your own emissions first, because no framework lets credits substitute for decarbonization. Pay for durability and verification, not the cheapest ton. And expect the rules to keep tightening: the market that emerges will look less like a donation and more like a regulated commodity. That is precisely what is attracting institutional capital that avoided the sector for years. The carbon credit of 2026 is not the carbon credit of 2021, and buyers who price it like the old one are buying the wrong thing.

References

Roots Analysis, Mordor Intelligence, Regreener, and The Business Research Company market forecasts via OneTribe, Global Carbon Fund, CarbonCredits.com, and PR Newswire; Bloomberg retirement and capital data via OneTribe; CDR.fyi and Puro.earth pricing via Regreener; ICVCM Core Carbon Principles and Article 6.4 Supervisory Body rules via Energy Connects and Fastmarkets; Myanmar cookstove credit suspension call via Global Forest Coalition; Germany tender via Europesays; CORSIA eligibility pricing via ClearBlue Markets; Article 6.4 market analysis via Markets NXT.