SAF revenue certainty mechanism: levy design

From:: Department for Transport
Published: 16 October 2025
Last updated: 22 June 2026 — See all updates

Read the full outcome

SAF revenue certainty mechanism: levy design – government response

PDF, 446 KB, 44 pages

This file may not be suitable for users of assistive technology.

Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email webmasterdft@dft.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Detail of outcome

We have considered responses to our first consultation on the design of the sustainable aviation fuel (SAF) revenue certainty mechanism (RCM) levy.

Our response sets out government positions on:

exemptions
levy collection frequency
reconciliation processes
mitigations against supplier default
compliance and enforcement measures

We have launched the sustainable aviation fuel revenue certainty mechanism: levy design consultation to:

provide further clarity on how the levy could work
consider other design options suggested by respondents

Original consultation

Summary

Seeks views on the aviation fuel supplier levy design, which will fund the sustainable aviation fuel (SAF) revenue certainty mechanism.

This consultation ran from
10am on 16 October 2025 to 11:59pm on 8 January 2026

Consultation description

Government has previously confirmed that industry should fund the revenue certainty mechanism through a variable levy on aviation fuel suppliers.

This consultation seeks views on specific design features of the aviation fuel supplier levy, which will fund the sustainable aviation fuel (SAF) revenue certainty mechanism.

The design features of the levy include:

how it could be calculated
the length, frequency and sequence of when the levy is calculated, collected and paid
the use of forecasts to provide certainty for industry
actions to address over-collection, surpluses and under-collection of the levy

Documents