🇪🇺EU ETSJune 21, 2026·6 min read

EU ETS Aviation in 2026: Free Allowances Ending, Non-CO₂ Reporting, and What Comes Next

Explore the major changes shaping aviation compliance in 2026, including the phase-out of free allowances, sustainable aviation fuel incentives, and new Non-CO₂ monitoring requirements.

#EU ETS#Non-CO₂#SAF#Fit for 55#ReFuelEU Aviation

By Emissence

The European Union’s aviation climate regulations are evolving rapidly. For aircraft operators, compliance is no longer limited to annual CO₂ reporting. The industry is now facing higher carbon costs, increased sustainability requirements, and the introduction of Non-CO₂ monitoring obligations.

Understanding these changes is essential for managing both compliance risks and operational costs.

The End of Free Allowances

Historically, aircraft operators received a portion of their emission allowances free of charge. This approach is now ending.

Under the European Union’s Fit for 55 package, aviation free allocation has been progressively phased out:

  • 1Free allocation was reduced in 2024
  • 2Further reductions occurred in 2025
  • 3From 2026 onward, aviation free allocation has effectively ended

As a result, aircraft operators must increasingly obtain allowances through auctions or the carbon market. For many airlines, carbon costs are becoming a significant operational expense that requires active management and forecasting.

Sustainable Aviation Fuel Incentives

Recognising the higher cost of Sustainable Aviation Fuel (SAF), the European Union has introduced support mechanisms through the EU ETS.

The objective is to encourage operators to adopt SAF while reducing the financial burden associated with transitioning away from conventional jet fuel. These incentives are intended to complement the obligations introduced under ReFuelEU Aviation and accelerate the aviation sector’s decarbonisation efforts.

Non-CO₂ Aviation Effects

One of the most significant recent developments is the introduction of monitoring requirements for Non-CO₂ aviation effects.

These effects include:

  • 1Nitrogen Oxides (NOx)
  • 2Contrails
  • 3Aviation-induced cirrus clouds

Although these effects are not yet subject to carbon pricing, aircraft operators must begin monitoring and reporting relevant information under the European Union’s Monitoring, Reporting and Verification (MRV) framework.

For many organisations, this represents an entirely new compliance challenge that requires additional operational data collection, quality assurance procedures, and internal reporting processes.

The Future of Aviation Climate Regulation

The regulatory landscape continues to evolve as policymakers seek additional measures to reduce aviation’s environmental impact.

Future developments may include:

  • 1Expanded environmental reporting requirements
  • 2Increased use of sustainable aviation fuels
  • 3Enhanced monitoring of climate impacts beyond CO₂
  • 4Further integration of aviation into broader climate policies

Operators that invest in strong data management systems, robust monitoring procedures, and proactive compliance programmes today will be better prepared to respond to tomorrow’s regulatory requirements.

Preparing for the Next Phase

The transition from basic emissions reporting to comprehensive sustainability compliance is already underway. Regulatory obligations are expanding beyond carbon accounting and increasingly require organisations to demonstrate transparency, data quality, and environmental performance.

Aircraft operators that proactively assess regulatory changes, strengthen internal controls, and improve emissions data quality will be best positioned to manage future obligations efficiently while minimising compliance risks and costs.

How Emissence Can Help

Emissence provides specialist support for EU ETS, UK ETS, CH ETS, CORSIA, ReFuelEU Aviation, and Non-CO₂ MRV requirements.

From monitoring plan development and emissions reporting to verification readiness assessments and regulatory advisory services, we help aircraft operators navigate an increasingly complex compliance landscape.

Contact us at [connect@emissence.com](mailto:connect@emissence.com) to discuss your compliance needs.

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