What it means
A manufacturer receives a freight bill that includes linehaul, fuel and a waiting-time charge, and its accounts team compares those lines with the agreed rate, shipping record and time evidence. A discrepancy becomes an exception for investigation before payment.
The starting point is the contract, since rates, lane definitions, discounts and effective dates establish the expected charge. Identify the shipment by matching the invoice to the bill of lading, booking, tracking reference or other actual movement record, and verify the carrier, because a genuine invoice must come from the right contracted party and payment details should follow the company's controls.
Check linehaul by comparing route, equipment, service level, weight or volume with the applicable tariff or rate confirmation. Recalculate the arithmetic as well, including units, quantities and extensions, not only the final total.
Review fuel by recalculating any surcharge using the agreed index, date and charge base, because a correct percentage applied to the wrong base can still be wrong. Test accessorials, since waiting, storage and special handling fees need both an agreed rate and evidence that the event occurred.
A changed freight class or weight may be valid if supporting measurement exists, so request the evidence rather than dismissing it automatically. Find duplicates, because one shipment can receive an original invoice and a corrected bill with different numbers, so match references beyond invoice number.
Check proof of delivery by confirming the shipment status and noting shortages or damage when relevant to billing or claims. Cross-border bills may also have conversion and tax treatment that differ from the underlying freight rate, so review tax and currency separately.
Separate disputes, because an exception may be a carrier error, a missing contract amendment or incomplete internal data, so investigate before deciding. Avoid blanket holds, since paying undisputed amounts according to contract can preserve relationships while a specific charge is contested, subject to agreed terms.
Mind deadlines, as some contracts have dispute windows or early-payment discounts, and keep an audit trail of the invoice, supporting documents, calculation, correspondence and final resolution. If a wrong rate recurs, fix the tariff setup or contract data rather than contesting each invoice from scratch, and watch data capture, since automated extraction may misread a decimal or charge code and a system is only as good as its inputs and review rules.
Measure recovery honestly, because money identified as disputed is not recovered until the credit or corrected payment is confirmed, and preventing a wrong payment can be simpler than seeking a later refund, though both are audit work. Parcel, truckload, less-than-truckload and ocean invoices use different rating mechanics, so design checks for each mode.
In practice
Real-world examples.
Example
A manufacturer's accounts team checks a waiting-time charge against appointment logs and the contract before paying the bill. The driver's arrival and departure times show the wait was shorter than the charged period, so the line is queried with the carrier. The undisputed rest of the invoice is paid on time.
Example
A distributor receives a corrected invoice for a shipment that was already paid under an earlier bill with a different number. The team matches the corrected invoice to the original shipment reference to prevent duplicate payment. Only the genuine difference, if any, is paid.
Example
A retailer recomputes a fuel surcharge against the agreed index and date and finds the percentage was applied to a charge base that included non-fuel extras. The carrier is asked for a corrected invoice. The retailer also updates its own rating file so the same error does not repeat.
Formula
Calculation
Illustrative recovery rate = confirmed overcharges credited or repaid / freight spend audited in the same period x 100. If $60,000 is recovered from $3,000,000 of audited spend, the rate is $60,000 / $3,000,000 x 100 = 2%. Flagged disputes are not recovered money until resolved.
Suppose the same audit flagged $90,000 of disputed charges in the period. The flagged rate would be $90,000 / $3,000,000 x 100 = 3%, but only $60,000 of the $90,000 (two thirds) has been confirmed as a credit, so the honest recovery figure is 2%.Case study
Seen in the real world.
Fictional case: Cedar Products found repeated fuel charges calculated on the wrong rate base. Logistics and finance checked the contract, obtained corrected invoices and updated their rating file. They recorded the credit only when it appeared, not when the discrepancy was first flagged. Procurement, which knows negotiated rates, worked with logistics, which knows what happened, and accounts payable, which controls the payment.
The audit also showed that some valid charges pointed to a route or packaging problem worth addressing, and it examined transport bills only, not customs clearance of goods. Vendor guides from Loop (invoice receipt, rate and accessorial checks, duplicate detection, exceptions and approval) and Navix (a line-item checklist) are process examples, because the actual contract governs each invoice. For the owner, the audit created confidence that freight spending reflects real, agreed service and that exceptions are resolved with evidence. This fictional case is not evidence of a typical audit recovery rate.
Watch out
Common mistakes.
- Approving an invoice total without checking individual charges and contract dates.
- Counting unresolved disputed amounts as recovered savings.
- Relying on invoice numbers alone to catch corrected duplicate bills.
Questions
People also ask.
Is a freight audit done only after payment?
No. It can prevent errors before payment or seek corrections afterward.
What documents help?
Contract or rate confirmation, shipment record, invoice and relevant delivery or event proof.
Does an exception always mean an overcharge?
No. It may reveal missing information or a valid service needing verification.
From the founder's library
Take it further with the book.
Build your financial confidence beyond this definition. Shihan's full-length guide, Accounting Fundamentals, takes the same plain-English approach and turns it into a complete, practical playbook for non-finance managers, business owners and students - with chapter-end quiz answers and presentation slides included.
25% off with code MMHQ25, applied at checkout. Priced in USD - checkout may show the equivalent in your local currency.
View the book and save 25%