Freight Invoice Audit Against Contracted Rates
Carrier invoices rarely match the contracted rate exactly — a base rate applied wrong, a fuel surcharge calculated off an outdated index, a lane priced at the wrong mileage tier — and someone in AP is supposed to catch these against the rate contract before paying, but with hundreds of invoices a week from a dozen carriers, that comparison mostly doesn't happen line by line. The errors are rarely dramatic on any single invoice, a few percent here and there, but they compound across a freight spend that runs into the millions, and once an invoice is paid, recovering an overcharge means chasing the carrier for a credit that takes weeks and often just doesn't happen.
STARTING PRICE
From €299
Standard tier · Multi-step workflow with AI extraction/decisioning and 2-3 integrations.
Get a quote →Saves roughly 6-10 hrs/week for an AP or freight audit team.
How the automation works
We match every carrier invoice line against the contracted rate table for that carrier, lane, weight break and service level, flagging any charge that deviates beyond a configurable tolerance before the invoice is approved for payment. Fuel surcharges are recalculated against the index and formula in the contract rather than trusted at face value, and accessorial charges are checked against what actually applied to the shipment. Invoices that match are approved automatically; ones with discrepancies are routed with the specific line item and expected vs billed amount attached, so whoever resolves it isn't starting from a blank invoice trying to figure out what's wrong.
Process flow
- 01
Carrier invoice received trigger
An incoming carrier invoice, EDI or PDF, triggers audit automatically against the shipment record it references.
- 02
Match to shipment and contract integration
The invoice is matched to its originating shipment and the applicable rate contract for that carrier, lane, weight break and service level.
- 03
Recalculate expected charges ai
Base rate, fuel surcharge and applicable accessorials are recalculated from the contract terms and current fuel index rather than accepted as billed.
- 04
Flag discrepancies beyond tolerance ai
Any line item that deviates from the recalculated expected charge beyond a configurable tolerance is flagged with the expected amount, billed amount and the specific contract clause it should follow.
- 05
Auto-approve clean invoices output
Invoices matching the contract within tolerance are approved for payment automatically, without a manual line-by-line review.
- 06
Route disputes with evidence output
Flagged invoices are routed to AP or the carrier relationship owner with the specific discrepancy and supporting contract reference attached, ready to dispute with the carrier.
Inputs
- Carrier invoices (EDI/PDF)
- Rate contracts by carrier and lane
- Fuel surcharge index
- Shipment weight and service records
Outputs
- Auto-approved invoice queue
- Flagged discrepancy report with dollar variance
- Carrier dispute packet
- Freight spend leakage summary by carrier
Works with
Prefer a fully custom build instead of an off-the-shelf integration? We scope both options during your free consultation — most jobs like this one work fine on standard connectors, but higher-volume or non-standard systems sometimes need bespoke API work, reflected in the complex tier.
Where this goes wrong if you get it wrong
- Fuel surcharge formulas vary by carrier and contract and change with the published index weekly — auditing against a stale or generic surcharge assumption produces false-positive flags on invoices that are actually correct, which erodes trust in the audit faster than the overcharges it was meant to catch.
- Weight and dimension discrepancies between what was quoted and what the carrier actually billed need a tolerance band, not exact-match logic — carrier reweighs and dimensionalizer scans routinely differ from shipper-declared weight by a small margin that isn't itself an error.
- Accessorial charges (liftgate, residential delivery, inside delivery) are only valid if the service was actually requested or required for that shipment — auditing only the rate applied to an accessorial without checking whether the accessorial itself was warranted misses a common overcharge pattern.
- Overcharges caught after an invoice is already paid become a recovery problem instead of a prevention one — audit logic needs to run before payment approval, not as a post-payment reconciliation exercise that depends on the carrier agreeing to issue a credit.
Frequently asked questions
How much of a discrepancy triggers a flag?
The tolerance is configurable per carrier or lane — tight enough to catch real errors, loose enough to avoid flagging normal weight-reweigh variance that isn't actually a billing mistake.
Does this replace a freight audit vendor?
It can run as your first-line audit before invoices reach a third-party auditor, or independently — either way it catches the routine rate and surcharge errors before payment rather than after.
What happens when a carrier disputes a flagged discrepancy?
The flag includes the exact contract clause and recalculation the discrepancy is based on, so the dispute conversation starts from evidence rather than a general complaint about the invoice.
Can it handle multiple contracts per carrier for different lanes?
Yes — rate matching applies the specific contract in effect for that carrier, lane, weight break and effective date, not a single blended rate per carrier.