Chile’s Ministry of the Environment (MMA) has recognised the Paris Agreement Crediting Mechanism (PACM) as an eligible standard to generate credits that companies can use to offset the country’s carbon tax, Carbon Pulse reported. The decision matters for taxpayers under the levy and for project developers because it connects the UN’s newest crediting system, built under Article 6.4 of the Paris Agreement, to a national compliance scheme that has been openly hunting for more offset supply.
A Compliance Scheme Looking for Supply
The recognition lands at a moment when Chile is actively widening the pool of credits available under its green tax. The government has ruled out carbon tax hikes and is instead seeking new alternatives to attract more project developers, Quantum Commodity Intelligence reported on 25 September 2026.
The scheme’s recent record explains that posture. The environment ministry’s annual carbon tax results, released in May 2026, showed mixed outcomes for the system, with companies reducing their use of credits under the scheme, per Quantum. Earlier, the first ever auction of carbon credits under the tax was cancelled in February 2025, according to the same outlet’s coverage.
Against that backdrop, admitting PACM credits is a supply side fix rather than a price signal: it enlarges the menu of eligible units without touching the tax rate itself.
The Article 6 Build-Out Behind the Decision
Chile has spent the past year assembling the machinery to authorise and trade credits under the Paris Agreement. In December 2025 it published a regulatory framework to fully operationalise the sale of carbon credits abroad under Article 6, Quantum reported. A first authorisation followed in October 2025, and in January 2026 the government approved new Article 6 projects spanning methane, power and renewables, enabling the sale of credits via ITMOs, per Quantum.
Officials are now eyeing a significant increase in the issuance of Letters of Authorisation, the approvals that allow credits to be traded internationally, with up to 18 expected by December, Quantum reported on 24 September 2026. Chile also already features in bilateral cooperation: Singapore lists Chile among its implementation agreement partners for international carbon credit transfers, per the Singapore Economic Development Board.
PACM recognition gives this build-out a second destination. Alongside the export channel, where authorised credits leave the country as ITMOs, credits generated under the UN mechanism now have a domestic compliance outlet against the carbon tax.
What PACM Eligibility Signals About Integrity
PACM is overseen by a UN Supervisory Body whose 23rd meeting is running in Bonn from 5 to 9 October 2026, Discovery Alert reported. The body is currently weighing integrity questions, including whether cookstove credits should carry a reversal-risk buffer, a debate that could cut credit volumes by between 6% and 60% under scenarios cited by the same report.
That context cuts both ways for Chilean taxpayers. On one side, PACM is a centrally supervised standard with an active rule-making process, which supports the credibility of units surrendered against a national tax. On the other, the rulebook is still being tightened, so the supply and characteristics of PACM credits remain in motion even as Chile admits them.
What to Watch
The first marker is operational detail: which PACM activities and methodologies will actually feed credits into tax compliance, and how quickly the first units are surrendered. The ministry’s next annual results will show whether eligibility translates into real usage after the May 2026 decline.
The second marker is the Bonn meeting outcome. Decisions on reversal-risk buffers would reshape the economics of a major credit category just as Chile opens its tax scheme to the mechanism. The third is the LoA count by December: if Chile approaches 18 authorisations, the country will be running both legs of Article 6 participation, exporting ITMOs abroad and importing UN-standard supply into its own compliance market.
