Leon Software and FCC Aviation: One Seamless Path to Compliance

One Integration. Seamless Global Tax Compliance.

FCC Aviation represents airlines and business jet operators in 13 countries and manages compliance with 22 different aviation tax schemes. Its core offering is to take over the entire compliance process: from calculating taxes and filing returns to preparing documentation and acting as a single point of contact with authorities, so operators no longer need multiple representatives in different jurisdictions. With the new integration, operators can rely on Leon’s flight management software as the single entry point for operational data feeding directly into compliance workflows.

All-in-One Support for Emissions and ReFuelEU Compliance

Beyond tax compliance, FCC Aviation delivers a comprehensive CO₂ support service that covers all major schemes, including EU ETS, Swiss ETS, UK ETS, CORSIA, the French Offsetting Scheme, and ReFuelEU Aviation. This includes preparing monitoring plans, submitting emissions reports, arranging independent verification, opening and managing registry accounts, and procuring emission allowances. 

In addition, FCC Aviation provides monthly analytics to help operators track qualifying flights, emissions, and carbon costs. Operators can also monitor their fuel uplift position at Union airports in real time through the ReFuelEU Dashboard. The dashboard clearly shows how much additional fuel uplift is required by year-end to avoid penalties, tracks the number of non-exempt Union airport departures, and provides penalty estimates - offering full visibility of the financial exposure if any uplift deficit remains unaddressed.

Clients gain access to a secure online platform where all tax declarations, reports, statements, invoices, and payment details are stored in one place. The integration ensures that every document is linked to the operational data managed in Leon’s flight management software, keeping records consistent, accurate, and audit-ready.

How the Integration Works: From Flight Data to Compliance

The integration between Leon and FCC Aviation enables a secure and fully automated exchange of operational data, including aircraft details, flight records, and fuel consumption. Acting as the central data hub, Leon’s flight management software consolidates all critical operational information within one environment and ensures that only verified and up-to-date data is passed into FCC Aviation’s Gate C App (Global Aviation Tax & Emissions Compliance App). This eliminates the need for manual re-entry, minimizes the risk of errors, and guarantees consistency across all records.

Through this seamless connection, FCC Aviation can automatically prepare tax declarations, and verified emissions and ReFuelEU compliance reports, all stored in a protected, cloud-based environment. Operators maintain full visibility via FCC Aviation’s Gate C App, gaining real-time access to documentation, payment deadlines, and audit-ready reports. The result is a faster, safer, and more transparent compliance process that significantly reduces administrative workload for flight departments while ensuring adherence to complex multi-jurisdictional regulations.

About FCC Aviation

FCC Aviation is an international compliance services company with over a decade of experience in the aviation sector. Formed by a multilingual team of specialists, the firm has built a strong reputation as a trusted partner for both airlines and business aviation operators worldwide. Today, FCC Aviation supports around 230 flight departments across 50 countries, covering Europe, North America, South America, the Middle East, North Africa, Asia-Pacific, and Australia. With its global reach and expertise, the company continues to strengthen its position as a leading adviser in aviation compliance.

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