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Chile Green Tax on Fixed Sources

Chile Green Tax on Fixed Sources: Imposes emissions taxation supported by MRV requirements, compelling covered facilities to measure, report and validate CO2

Maílis Carrilho
Written by Maílis Carrilho
Updated on February 12th, 2026

Summary

Chile’s Law 20,780 establishes an annual tax on emissions to the air of particulate matter (MP), NOx, SO2, and CO2 from qualifying fixed sources above defined thresholds. The regime relies on measurement, reporting, and verification (MRV) methods overseen through the environmental authority and SMA guidance, making emissions data a fiscal compliance dataset with enforcement consequences.

Details

Jurisdictions
  • Chile
Mandatory for

Facilities meeting thresholds and criteria in the law and implementing regulation.

Exemptions

Explicitly carved out sources (for example, smaller equipment) are defined in tax guidance and interpretations; facilities must documentthe basis for any non-applicability.

Deep dive

2 min read
Published Feb 12, 2026

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What’s Required

1) Determine tax applicability based on thresholds and source definitions
The law specifies thresholds such as 100+ tonnes/year of MP or 25,000+ tonnes/year of CO2 for affected establishments, with applicability logic that can capture multiple pollutants once thresholds are exceeded.

2) Implement MRV-grade emissions measurement and reporting
SMA guidance states it is responsible for methods for measurement, reporting, and verification (MRV) of emissions for the tax. Facilities must use approved methodologies, maintain monitoring evidence, and submit required emissions information.

3) Maintain evidence for auditability and dispute resolution
Tax regimes create audit and appeal risk. Companies should retain:

  • monitoring system outputs (CEMS, where used)

  • fuel and operational data supporting calculations

  • stack test reports, calibration, and QA/QC records

  • third-party verification where applicable.

4) Align with other environmental reporting systems
Emissions values may be cross-checked against permits, RETC, and corporate reporting. Companies should reconcile across all channels to avoid “multiple truths”.

Important Deadlines

  • Date of adoption: 2014 law enactment; article 8 provisions are reflected in the consolidated BCN version.

  • Annual cycle: reporting and tax calculation follow an annual cadence set by tax and environmental procedures.

Current Status

In force as part of Chile’s fiscal environmental instrument set, with ongoing MRV method updates referenced by SMA guidance.

Penalties for Non-Compliance

  • tax liabilities, interest, and penalties under tax enforcement

  • environmental enforcement exposure for false or misleading reporting

  • increased inspection and compliance orders.

Examples of Known Violations

  • using incorrect emission factors or fuel values.

  • missing calibration evidence for monitoring systems.

  • inconsistent annual totals between MRV submissions and other reporting systems.

  • failure to update methodology after regulatory changes.

Resources


Maílis Carrilho
Added by:
Maílis Carrilho
Sustainability Research Analyst
Maílis Carrilho is a Sustainability Research Analyst (Intern) at Net Zero Compare, contributing research and analysis on climate tech, carbon policies, and sustainable solutions. She supports the team in developing fact-based content and insights to help companies and readers navigate the evolving sustainability landscape.
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Added on Feb 12, 2026 by Maílis Carrilho ·