Parcel Audit Services

Recover Hidden Shipping Costs with Comprehensive Parcel Auditing
Shipping invoices are complex and often contain billing errors, incorrect surcharges, and missed refund opportunities. Without a detailed auditing process, these issues can go unnoticed and increase overall shipping costs.
Our parcel audit services analyze every line item on your carrier invoices to identify discrepancies, recover refunds, and ensure billing accuracy. By auditing each shipment against your carrier contracts and service commitments, we help your business maintain complete visibility into shipping expenses while preventing costly billing mistakes.
PMAC’s auditing services are among the most thorough in the industry. While many auditors review only one or two billing criteria, our system evaluates more than 50 different variables, checking every code on your invoice. This ensures your parcel carrier bills you correctly and gives you peace of mind.
Best of all, we perform our detailed line-item audit at no upfront cost to you.
Why Parcel Auditing Is Essential for Modern Shippers
Many companies assume that carrier invoices are always accurate. In reality, shipping bills frequently contain errors due to the complexity of modern logistics systems.
Parcel carriers process millions of shipments every day, which makes billing discrepancies more common than many businesses realize.
Without regular auditing, companies may unknowingly pay for billing discrepancies. A very abbreviated list is below:
- Billing inaccuracies are not limited and can occur in many forms beyond these.
- Duplicate charges
- Incorrect residential delivery surcharges
- Misapplied dimensional weight pricing
- Incorrect fuel surcharge calculations
- Billing for unavailable delivery services
- Late deliveries that qualify for refunds
These issues can accumulate quickly, especially for businesses shipping high volumes of packages each week.
Parcel auditing helps ensure your organization only pays for the services actually delivered and that all charges comply with your negotiated carrier contracts.


What Are Parcel Audit Services?
Parcel audit services review carrier invoices and shipment data to confirm billing accuracy and identify refund opportunities.
Each shipment is evaluated against multiple criteria including:
- Carrier contracts
- Service guarantees
- Surcharge rules
- Dimensional weight calculations
- Delivery performance data
When errors are detected, refund claims are submitted to the carrier so the overcharges can be credited back to your account. In certain instances, the billing errors are so extreme that customer and representative involvement are required.
For companies with significant shipping volume, this process often uncovers thousands of dollars in recoverable costs every year that are impossible for companies to find and reconcile on their own. PMAC is a cost-free extension of your logistics team.
In addition to recovering refunds, parcel auditing provides valuable insights into shipping patterns, carrier performance, and operational inefficiencies.
Benefits of Parcel Audit Services
Recover Missed Refunds
Ensure Carrier Billing Accuracy
Improve Shipping Cost Visibility
Reduce Long-Term Shipping Expenses
Monitor Carrier Performance
How Our Parcel Audit Process Works
from your team while ensuring every invoice is reviewed thoroughly.
Invoice Collection
Refund Claim Submission
Secure Data Import and Storage
Contract Compliance Monitoring
Data Reporting and Visibility
All invoice data and performance data (tracked data) is uploaded into our web-based reporting application. This platform provides:
- Hundreds of reports and many more can be created through our Ad-hoc features.
- BI and AI driven
Quarterly Carrier Performance Reporting
Detailed Audit Analysis
Performance-Based Billing
What Our Parcel Audit Reviews
Billing and Rate Verification
- Duplicate billings
- Rate variance (published rates charged)
- Fuel surcharge validation by transaction date
- Weight variation reports
- Quarterly reports on net and after freight charges (rebate validation)
Address and Delivery Classification Checks
- Residential adjustments and rate differences
- Commercial adjustments
- Commercial/Residential delivery area surcharges (DAS)
- Extended commercial delivery charges
Package Dimension and Size Validation
- Oversize charges and large package surcharges
- Dimensional weight verification
- Exorbitant dimension charges for small parcels
- Entered weights vs. billed weights
Service and Delivery Verification
- Saturday delivery charge validation
- Service downgrades billed at manifested levels
- Billed for unavailable services
- Transit hours and average transit hours by carrier, zip code, and service type
Billing and Manifest Accuracy
- Manifest error reconciliation
- Manifest and ship date discrepancies
- Inactive account reports
- CADJ “package not previously billed” tracking number validation
- Multiple delivery scans for duplicate tracking numbers
Accessorial Charge Audits
- COD charges
- CBS charges and unauthorized CBS charges
- Chargebacks
- Bill option charge reports
- Undeliverable returns
Carrier Guarantee and Refund Checks
- Guaranteed Service Refund (GSR) reconciliation
- NPB/CLB adjustments validation
- Residential incentive validation
Operational Monitoring
- Customer pickup time monitoring
- Late payment fee visibility reports
- Weekly reporting of the Top 5 Accessorial Charges
Frequently Asked Questions
Capture Every Refund Opportunity
By reviewing each shipment through these detailed checks, our parcel audit services ensure that every potential refund opportunity is identified and claimed. At the same time, the process provides ongoing visibility into carrier performance, billing accuracy, and contract compliance.
This systematic auditing approach helps businesses reduce shipping costs, improve operational transparency, and maintain stronger control over parcel carrier billing.


