Fourth quarter is budget season for many shippers, and often renewal season for freight audit and payment contracts too. The renewal review often compares two numbers from your parcel audit provider: what they recovered, and what they charged to recover it.
The more useful comparison sits one level down. An audit can only catch what differs from its own reference for what a shipment should have cost, so the most important thing to know about any provider is where that reference comes from. A vendor's rate table is a model of your contract, built after the fact from your contract and the carrier's files.
A renewal deck can lead with a recovery percentage and never say what the audit actually checked.
Key highlights:
- A parcel audit compares each carrier charge against an expected cost, so the source of that expected cost sets the ceiling on what the audit can catch.
- The eight questions below test that source, the unit of audit, coverage, the error types an invoice can't show, and how dispute evidence is produced.
- Post-invoice audit recovers real money for many shippers; the questions show where its view ends.
- Shipium's Always-On Audit compares each invoice line against the rating, label and scan records created when the shipment moved.
Why does the reference record decide what an audit can catch?
An audit flags a charge when it differs from the expected cost of that shipment. If the expected cost is wrong, or missing a fact the charge depends on, the audit can't see the error.
Think of it as the difference between checking a bill against a purchase order and a receipt, and checking it against the receipt alone. An auditor working from the invoice and a rate table has the receipt and a reconstruction of the order. An audit built into shipping execution has the order as it was placed: the carrier, service, zone, billable weight and contracted rate used when the label printed.
Penny Allen, Shipium's SVP of AI Product and Engineering, described the design goal to FreightWaves: "Every step needs to write to the same record in real time." The eight questions below test whether an audit has that record.
8 questions to ask your parcel audit provider before you renew
Ask these in writing and compare the answers side by side. Each one includes what a strong answer sounds like.
- What do you compare each invoice line against? A strong answer names a record created when the label printed, with the carrier, service, zone, billable weight and contracted rate used at that moment. A rate table the provider maintains is a reconstruction, and every gap in it becomes a gap in the audit.
- What is the unit of audit: the invoice line or the shipment? An invoice line exists once, on one invoice. A shipment has a life that runs from label to delivery to invoice, and an audit that follows it can check each stage as new facts arrive. Shipium describes that span as promise to payment, from the rate chosen at checkout to the invoice paid.
- What share of invoice lines and shipments do you examine? Ask for the number, then ask how lines outside it are handled. Complete coverage means every line is compared against its expected cost, with people reviewing only the exceptions.
- Can you catch a shipment billed correctly for the wrong decision? If a rule or setting chose the wrong service, the invoice will match the label, and an invoice-only audit will pass it. A strong answer traces each finding back to the decision that produced the charge.
- Can you see refunds whose window closes before the invoice arrives? Service refunds start with the delivery scan. An audit that waits for the invoice spends part of the claim window before it begins.
- How quickly do contract amendments and rate increases reach your reference? FedEx's 2027 increase takes effect January 4, according to Supply Chain Dive. Ask how long it takes for a new contract term or rate to reach the audit, and what happens to charges billed in the gap.
- What evidence comes with each dispute, and who assembles it? A strong answer attaches shipment-level facts from the original record, such as the rate, service, dimensions and scans, ready to send to the carrier.
- How does your cost change as parcel volume grows? Ask what happens to the price and the staffing behind it if volume doubles or you add a facility. The answer shows whether the audit is built on analyst hours or on automated comparison.
Questions 1 and 4 matter most. In practice, question 4 looks like this: a rule picks an overnight service an order didn't need, the carrier bills exactly what the label says, and the invoice is accurate while the money is still spent. If the reference is a reconstruction, or if findings can't be traced to a decision, the rest of the answers rest on a narrower view of your shipping than you're paying for.
For the error types behind questions 4 and 5, see carrier billing errors: where they start.
What does post-invoice audit do well?
For decades the carrier invoice was the only record a third-party auditor could get, so building a rate table and checking invoices against it was the best available method. It still recovers real money for many shippers, especially on duplicate charges and clear rate mismatches.
The questions above test the method's reach: where its view ends, which is wherever the error never reaches the invoice or the reference was never captured. Shipium's Always-On Audit launch post covers the three ways shippers handle carrier billing today.
How Shipium's Always-On Audit maps to each question
Always-On Audit runs inside the platform that rates, labels and ships each parcel, so the reference for every charge is the record created when the shipment moved. Here's how it maps to each question, using only what Shipium documents publicly. The documented answers to questions 4 and 6 are partial: rates are confirmed against your contract before each label prints, and Shipium's public pages don't say how quickly contract changes are loaded.
For more on how the audit works, see Shipium's parcel audit software page. For side-by-side comparisons, see Always-On Audit vs. Reveel and Always-On Audit vs. Enveyo.
Book a demo before your renewal, and bring your current provider's answers to the eight questions. We'll show how Always-On Audit answers each one against your own invoices.
