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The Most Common Freight Billing Discrepancies

Posted on April 7, 2026

Written by Mickey Powers

woman professional stressed over freight billing discrepancies

Understanding common freight billing discrepancies helps you maintain cost control and strengthen carrier relationships. It also improves clarity and accuracy in reporting, supporting smoother operations. This guide covers the 10 most typical discrepancies and how to dispute them.

1. Misclassification

Commodities are categorized in less-than-truckload (LTL) shipping based on density, handling, stowability and liability. This standardized system determines how easily a shipment can be handled, stacked and transported. Lower freight classes cost less to transport, while higher classes carry higher rates.

Incorrect density calculations, packaging differences, changes in product profiles and manual entry errors can all cause discrepancies. These can then lead to unexpected charges, inconsistencies between similar shipments and challenges in reconciling shipping costs with operational details.

2. Weight Variances

Carriers charge based on cargo’s weight, with heavier items costing more. A discrepancy arises when the billed weight differs from the expected or declared weight. It can happen because of:

  • Manual entry errors or outdated product details.
  • Scale differences across warehouses, terminals and carriers.
  • Packaging changes, such as adding or removing pallets and protective materials.
  • Moisture absorption or desorption during transit.
  • Repalletizing, splitting or consolidation during transit.

3. Routing and Service-Level Errors

Discrepancies can happen when shipments are billed under the wrong routing or service level. These freight bill errors often occur when carriers apply standard rates rather than negotiated agreements. Misinterpretation of delivery instructions or incorrect service codes can also cause inconsistencies.

Sometimes, changes in shipment routing are not reflected on the invoice. System updates may fail to capture special handling requirements. These can result in charges that differ from expectations and conflicting billing across similar shipments.

4. Accessorial Overcharges

Carriers apply accessorial charges for services beyond standard transport, such as residential delivery, inside delivery, limited-access delivery and liftgate usage. Overcharges occur when the amounts billed do not match contract terms or are applied without supporting records. Mismatches can also be caused by manual entry errors.

5. Fuel Surcharges

Fuel charges are variable fees that account for changes in fuel costs over time. They are typically calculated as a percentage of the line-haul rate using a published fuel index, like that of the U.S. Energy Information Administration (EIA), and an agreed-upon surcharge table. Invoices can become inflated when:

  • The applied percentage does not match the schedule.
  • The wrong fuel index or date is used.
  • The base amount used for calculation differs from contract terms.

Duplicate charges for freight bill

6. Duplicate Charges

Duplicate charges occur when the same shipment or service appears more than once on an invoice. This can include repeated line-haul rates, accessorials or administrative fees. Usually, this is triggered by system sync delays or overlaps and manual entry errors. Split shipments billed as full loads can also result in duplicate charges. Sometimes, adjustments and original entries are included without reconciliation, leading to discrepancies, as well.

7. Detention Errors

Detention is a fee carriers charge when shippers hold transportation equipment beyond the allowed free time. These charges are calculated based on agreed-upon time thresholds and hourly rates. Discrepancies transpire when free time is applied incorrectly, recorded handling times are inaccurate or detention is billed without supporting documentation, such as time logs or signatures.

8. Currency and Conversion Errors

International shipments require currency conversion between parties operating in different regions. Exchange rates are typically defined in contracts or based on agreed-upon reference points at a specific billing stage. Variances arise from outdated exchange rates, conversion applied at the wrong stage of billing or calculations that do not align with contract terms. Differences in rounding methods or system configurations can also create small but recurring gaps in billed amounts.

9. Tax and Duty Miscalculations

Taxes and duties apply to cross-border shipments based on product classifications, declared values, and origin and destination regulations. Each calculation depends on accurate tariff codes, correct valuation methods and current country-specific rates. Discrepancies occur when any inputs are misaligned. Here are some examples:

  • Errors in tariff classifications result in incorrect duty rates being applied.
  • Inaccurate declared values affect both duty and tax calculations, especially when valuation methods differ across jurisdictions.
  • Exchange rate differences influence the final amount when values are converted for customs purposes.
  • Country-specific rules, exemptions and thresholds require precise application, and variations in how these are interpreted across systems or partners can create inconsistencies.

10. Missing Discounts

Carriers offer discounts based on shipment volume, frequency or long-term agreements. These reductions are built into negotiated rate structures and should be reflected in invoicing. In practice, invoices may omit discounts, apply incorrect discount levels or apply reductions to the wrong base rate. This is often linked to contract misalignments, system configuration gaps or incomplete shipment data used during rating.

How to Dispute Discrepancies

To effectively dispute freight billing discrepancies, you need a clear process for reviewing charges, validating details and presenting corrections to your carrier. Freight bill audits provide that structure and help you maintain control over costs while keeping billing aligned with your agreements.

Audits can be carried out at different stages of the payment cycle:

  • Pre-audit: pre-audit reviews invoices before you release payment. Each charge is checked against the bill of lading, rate agreements and shipment records. This includes validating weights, classifications, fuel surcharges and accessorials. Any inconsistencies can be flagged early, so you can raise disputes and avoid paying incorrect amounts.
  • Post-audit: post-audit takes place after payment has been made. It focuses on identifying overcharges, preparing claims and recovering funds. Supporting documents, such as proof of delivery, time logs and carrier invoices, are used to substantiate each dispute and support resolution.
  • Ongoing audits: These audits give you continuous visibility into freight billing. They help you track recurring issues, strengthen your dispute process and maintain alignment with carrier agreements as shipment volume grows.

With the right audit process in place, you can manage disputes with clear documentation and consistent follow-through. As your shipment volume increases, you can rely on a freight bill audit service to handle tasks at scale without adding internal workload.

Audit Your Freight Bills With Broussard Logistics

Since 1978, we have delivered average savings of 10%-30% in eight out of 10 assessed companies identifying recoverable value. You can see what this looks like in your own data before making any commitment.

We will analyze your distribution to align shipment patterns with your contracts, benchmark your rates against the market and define your minimum savings based on your actual freight spend. You can walk away with clear insights and a practical path to recovery.

Call us at 346-910-9317 or fill out our online form to schedule a no-obligation three-part assessment.

Audit your freight bills with Broussard Logistics