Freight audit and payment services do two separable jobs. The audit half reads your freight bills and finds the errors. The payment half takes your money, holds it, and pays your carriers on your behalf, usually producing the GL coding, the accruals and the spend reporting on the way through. You can buy the first without the second. Most shippers under about 1,000 loads a month should at least ask whether they need the second at all, because the payment half is where the switching cost, the float and most of the price live.
The industry sells them as one product, right down to the name: the incumbent category page is literally Cass’s freight audit and payment, a single offering with no published pricing and no unbundled option described. They were built as one product in an era when consolidating hundreds of paper carrier invoices into a single weekly disbursement was itself the service. That problem is smaller than it used to be if you already run a functioning AP department.
This post separates the two, says what the payment half genuinely buys, and gives the conditions under which it is worth it.
What each half actually does
Audit only. The provider receives your invoices and supporting documents, reconciles the charges against your rate confirmations, contracts and tariffs, and hands you exceptions. You approve, you dispute, you pay your carriers yourself out of your own bank account. Money never leaves your control.
Audit and payment. All of the above, plus: the provider becomes the payment agent. You fund an account or wire a weekly settlement amount, the provider disburses to each carrier, remits the remittance advice, codes each charge to your GL, produces accrual entries for invoices in flight, and delivers spend reporting off the payment data.
The second bundle sounds like more value, and for some operations it is. The thing to notice is that only one of those items is about billing accuracy. The rest are accounting operations you may already have.
What the payment half is really selling
Four things, in rough order of how often they matter.
1. Disbursement volume. If you pay 400 carriers a month across LTL, truckload, parcel and drayage, each with its own remit-to, terms and portal, consolidating that into one weekly funding event is real work removed. If you pay 12 carriers on ACH, it is not.
2. GL coding and allocation. A payment provider codes each charge line (linehaul, fuel, accessorial, claim) to your chart of accounts and can allocate freight cost to business unit, customer or SKU. This is genuinely useful and genuinely hard, and it is the thing finance teams miss most when they unbundle. Ask whether your audit-only provider can deliver a coded export instead; many can.
3. Accruals. At month-end a chunk of your freight has moved and not yet billed. A payment provider that holds the shipment data can estimate the accrual. This is the strongest single argument for the bundle if your close is tight.
4. Reporting off clean data. Spend by lane, by carrier, by mode, derived from paid amounts rather than quoted rates. Real value, and also the piece most easily replicated from an audit-only export.
Notice what is not on the list: catching errors. The payment half does not improve detection. It changes who moves the money.
The comparison
| Audit only | Audit and payment | |
|---|---|---|
| Who holds your money | You | The provider, between funding and disbursement |
| Who pays the carrier | You | The provider, as your agent |
| GL coding | Usually an export you post | Typically included |
| Accruals | Your team, from open shipment data | Typically included |
| Errors caught before payment | Depends on turnaround vs credit period | Structurally yes, since the same party pays |
| Switching cost | Low. Stop sending documents | High. Every carrier remit-to changes back |
| Float | Stays with you | Ask who earns it, and for how long |
| Failure blast radius | You get worse reporting | Your carriers do not get paid |
| Typical pricing | Per invoice, or flat subscription | Per invoice, often with float economics behind it |
The float question, asked properly
When a third party holds funds between the moment your cash leaves and the moment it lands at the carrier, someone earns interest on that money for those days. That is not a scandal, it is a business model, and it can legitimately subsidize a lower stated fee. What is not acceptable is not knowing.
Three questions:
- How many days elapse between our funding and carrier disbursement, on average and at the tail?
- Who earns interest on funds in transit, and is any of it credited back to us?
- Where are the funds held, in what kind of account, and what happens to them if the provider fails?
The last one is the one nobody asks. Money in a payment agent’s operating account is a different risk from money in a segregated or trust-style account. Get the answer in writing, and get your counsel to read it, because we are describing a question to ask rather than giving legal advice about how any particular arrangement is structured.
The clock the payment half is supposed to protect
The real argument for bundling is timing. Catching an error before the money leaves is worth more than recovering it afterward, and the freight billing rules make that concrete.
Under 49 CFR 377.203, the standard credit period is 15 days beginning the day after the freight bill is presented, extendable by published tariff to no more than 30 calendar days. Under 49 CFR 377.205, the carrier must present its freight bill within 7 days of receiving a prepaid shipment or 7 days from delivery on a collect shipment, and the bill must state the credit time limit, the late payment penalty, any service or collection charge, and the discount terms.
So the audit has a deadline, and it is short. A bundled provider controls both ends of that window, which is a real structural advantage: the party doing the checking is the party writing the check. An audit-only arrangement has to close the same loop through your AP process, which works fine as long as the findings arrive before the payment run and someone is empowered to hold a line item.
After payment, the path narrows. An overcharge claim is governed by 49 CFR 378, which requires the claim to be accompanied by the freight bill, the rate, classification, weight or tariff authority relied on, and payment information, and under 49 CFR 378.8 the processing carrier must pay, decline or settle a written claim within 60 days of receipt. And under 49 U.S.C. 13710 a shipper must contest a bill within 180 days of receiving it to preserve the right to challenge it. All of these clocks, and the rest, are collected in our freight billing deadlines reference.
Duplicate payments: the failure mode unique to the payment half
The single most expensive thing that goes wrong on the payment side is paying the same load twice. A duplicate invoice that gets caught in audit is a non-event. One that clears disbursement is cash out the door, and recovering it means chasing a carrier that now has your money.
49 CFR 378.2 defines a duplicate payment as two or more payments for transporting the same shipment. 49 CFR 378.9 places affirmative duties on the carrier: when the carrier itself discovers an overpayment, duplicate payment or overcollection, it must refund within 30 days; for unidentified payments it must notify the payor within 60 days and may treat the funds as its own after 90 days without a response; and on receiving payor information it must refund or respond within 14 days.
Read that carefully, because the useful version is narrower than the headline. The 30-day refund duty runs when the carrier discovers the overpayment. It is not a self-executing refund button you press when you discover it, and it does not substitute for filing a claim. The practical takeaway is that the duty exists and is worth citing in your letter, not that the money comes back automatically.
Two questions for a bundled provider, then:
- What duplicate detection runs before disbursement, and does it look across invoice numbers, rebills and corrected bills rather than for exact matches?
- If a duplicate clears through you, who chases the refund, and who carries the cash gap in the meantime?
If the answer to the second is “we file it and you wait,” you are paying for a payment service that has externalized the payment risk back to you.
When the bundle is worth it
Buy audit and payment when several of these are true:
- You pay more than a few dozen distinct carriers a month and the disbursement work is a real job.
- Your close is tight and freight accruals are a recurring pain point.
- Nobody in-house owns freight GL coding, and freight cost allocation to business unit or customer is something finance keeps asking for and never getting.
- You want one vendor accountable for the whole chain, and you are willing to accept the switching cost that concentration creates.
- The provider will answer the float questions in writing.
When to buy audit only
Buy audit only when several of these are true:
- You have functioning AP. Payments go out on time, you know who approves what, and adding a disbursement layer solves a problem you do not have.
- Your carrier count is modest and already on ACH.
- You want the errors and the evidence, and you want to keep the carrier relationship in your own hands.
- You care about switching cost. Unbundling later means changing remit-to instructions at every carrier, which is a project. Not bundling in the first place costs nothing.
- Your volume is in the range where a flat or per-invoice audit fee is small and the payment layer is most of what you would be paying for. The full model at 200, 500 and 1,000 loads a month is in what freight audit actually costs.
That is the model we sell, so treat the list above as a position rather than a neutral finding. The honest counterweight: if your AP function is genuinely under water, a service that takes the whole thing off your desk is worth real money, and no software subscription replaces staff.
Questions to ask before you bundle
- What is the all-in fee, and how much of it is the payment half? Ask for the audit-only price separately, even if you intend to bundle. If the provider will not quote it, that tells you where the margin is.
- Who earns the float, over how many days, and where are the funds held?
- What runs before disbursement: duplicate check, rate match, accessorial validation against the rate confirmation?
- What is the exception workflow? Does a flagged invoice get held from payment automatically, or paid and clawed back later?
- Who is on the remit-to instruction at the carrier, and what does it take to change it back?
- What happens on termination to funds in transit and disputes in flight?
- Can we get the coded GL export and the accrual file without the payment service?
- What is the recovery rate on disputes filed, not the findings total?
Question 7 is the one that most often collapses the whole decision. A surprising number of buyers want the accounting outputs and assume the only way to get them is to hand over the money.
The short version
The audit and the payment are two products. The audit is the one that finds money. The payment is an accounting and disbursement service that happens to be sold alongside it, priced partly on float, and expensive to reverse.
If your AP function works, start with audit only, keep the money in your own account, and buy the payment layer later if the disbursement and accrual work turns out to be the real constraint. If your AP function does not work, be honest about that, and buy the service. What you should not do is accept the bundle because a provider presented it as one indivisible thing. It never was. Before you commit either way, it is worth knowing what a freight audit provider should show you before you sign, and how to run a pilot on your own invoices without a sales cycle.
Sources
- 49 CFR 377.203 (15-day standard credit period, extendable by published tariff to no more than 30 calendar days)
- 49 CFR 377.205 (7-day bill presentation and the terms a freight bill must state)
- 49 CFR 378.2 (definitions of overcharge, duplicate payment and overcollection)
- 49 CFR 378.4 (documentation that must accompany an overcharge claim)
- 49 CFR 378.8 (60-day clock to pay, decline or settle a written overcharge claim)
- 49 CFR 378.9 (carrier refund duties on duplicate payments and unidentified payments)
- 49 U.S.C. 13710 (180-day window to contest a freight bill)
- Cass Information Systems, freight audit and payment (no published pricing, fee structure or pricing model)