What Is a Fleet Invoice Recovery Audit?

A fleet invoice recovery audit is a line-by-line check of the repair invoices a fleet has paid, measured against the contracts, warranties and repair-time standards the fleet already holds. Where a charge does not match what was agreed, it becomes a documented recovery. It is a familiar idea from freight and accounts payable, applied for the first time to vehicle maintenance.

The one question the audit answers

Every repair invoice makes a claim: this work was done, these parts were used, this many hours were spent, this is what you owe. A fleet invoice recovery audit asks one question of every line on it.

Was this charge authorised by what we already agreed?

That is the whole discipline. Not "is this expensive," which is a matter of opinion, but "does this match the rate card we signed, the warranty that applied, the hours the job actually takes, the scope we approved." Those are facts, not judgements, once you have the agreements to check against.

What it is not

It helps to be precise, because two things get confused with it.

It is not a cost-reduction consulting exercise. A consultant looking at your total maintenance spend will find that better preventive-maintenance discipline could lower it by a fifth. That is real, but it is operational, and most of it is not recoverable money. It is future behaviour.

It is not fraud investigation. The overwhelming majority of what an invoice audit finds is not fraud. It is drift: a markup a few points above contract, a labour line rounded up, a warranty repair nobody flagged, the same invoice paid twice. Ordinary, systematic, and entirely recoverable.

The audit sits between those two. It finds real money, already spent, that the agreements say you should not have paid.

What it checks, and what it finds

An invoice audit runs each line through the agreements the fleet holds:

• Rate and price-list breach. A part or labour rate billed above the contracted figure.
• Parts markup. Margin applied above what the contract allows. Shops mark up parts anywhere from a quarter to well over half; the contract usually says otherwise.
• Labour padding. More hours billed than the job takes, or inspection lines for work never done.
• Warranty leakage. Repairs billed to the fleet that an active warranty already covered. Usually the single largest and cleanest recovery.
• Unauthorised scope. Work billed that was never approved.
• Duplicates, tax and arithmetic errors. The same residue every accounts-payable book carries.

Why it needs your agreements to work

Here is the part that makes fleet different from freight, and the reason this audit did not exist until recently.

A freight bill can be checked with arithmetic, because a tariff times a weight times a zone has one right answer. A repair invoice cannot, unless you have the thing that says what was allowed. That thing is your paperwork: the master service agreement, the rate exhibit, the warranty terms, the work order that authorised the job.

When those agreements are turned into rules software can read, the fuzzy question ("was this fair") becomes a precise one ("this billed line versus the authorised line"). That is what makes the audit possible, and it is exactly what Korrex does. It reads the agreements you already have and checks every invoice against them, before payment and after.

How you actually engage one

The model is borrowed from recovery audit, because it works and because it removes all the risk from the fleet.

You send a sample of paid invoices, typically the last 90 days. The audit runs against your contracts and warranties and returns each finding priced and cited to the exact clause it breaches. You recover the money. The fee is a capped share of what is actually recovered. Find nothing, and you owe nothing.

That structure means the audit pays for itself out of the money it finds, and never costs you if the money is not there.