Retrospective FTC analysis

Last updated 11 September 2026

What it is

Retrospective fuel tax credit analysis reviews up to four years of your fleet data to support adjustments to past claims, or to claim eligible periods you missed. For many fleets this leads to a significant return, within the four-year time limit for claiming.

Who tends to benefit

  • Businesses that did not claim for historic eligible activity, for example no claims for light vehicles when the fleet has a material off-public-road portion.
  • Businesses that used a less accurate method, such as a fixed percentage applied for a long period, and under-claimed as a result.

How it works

Nuonic can process whatever historic data exists, and often works with registered tax agents to run a sample analysis that supports fair and reasonable extrapolation to periods where GPS data is not available. Good record keeping and an accurate on-road vs off-road split make retrospective claims stronger.

Getting started

Speak with our team about retrospective analysis options. Historic data availability and access vary by telematics provider.


This article is general information, not tax advice.