Short answer
Freight audit and payment (FAP) is the process of checking every freight invoice against the agreed rate and the shipping paperwork, fixing or disputing the errors, and then paying the carrier. Shippers either run it in-house or hire a FAP provider. If you broker freight, you are on both sides of it. Shippers audit your invoices, and you pay your carriers.
Freight audit and payment sounds like something only big shippers worry about. It is not. If you run a brokerage and one of your customers is a manufacturer or a retailer, there is a good chance your invoice never lands on a person’s desk at that company. It goes to a third party whose whole job is to check it, kick it back if something is off, and only then cut the check.
This guide walks through how the process works, what it costs when you outsource it, what to ask a provider, and what it means for a broker who has to get paid by these companies and also pay carriers on time.
What freight audit and payment actually is
Strip away the vendor language and FAP is two jobs. The audit job asks one question. Does this freight bill match what we agreed to and what actually moved? The payment job makes sure the right amount goes to the right party, once, and on the agreed terms.
Ship4wd describes the audit as a review of freight bills against contracts and shipping documents, and notes it “can occur either before payment (pre-audit) or after payment (post-audit)”. A pre-audit stops a bad invoice before money goes out. A post-audit goes back through bills already paid to find overcharges and recover them as refunds or credits on future bills.
The audit compares the invoice to a handful of documents. These are the usual ones:
- The contract or tariff, or for spot freight the rate confirmation
- The bill of lading, for weight, pieces, origin, destination and reference numbers
- The proof of delivery, to confirm the load actually delivered and when
- Any approval for extra charges like detention or lumper fees
The freight audit and payment process, step by step
Most providers describe some version of the same six steps. Sheer Logistics, a 3PL that sells this service, lays them out like this:
- Collect the invoices. Bills come in by email, EDI or even fax.
- Verify the invoice. Check it against the BOL, delivery receipts and the shipping order.
- Validate the rate. Confirm the base rate, fuel surcharge, accessorials and any discounts match the contract.
- Resolve disputes. Work with the carrier on adjustments, credits or refunds. This is the slow, labor-heavy part.
- Approve and pay. Clean or corrected invoices get paid.
- Report. Roll the data up to see shipping costs, carrier performance and error trends.
The errors they hunt for are the same ones any broker has seen on a carrier invoice. Duplicate bills, wrong weights, a fuel surcharge figured on the wrong base, and accessorial charges nobody approved. If you want a refresher on how fuel surcharges get calculated, our fuel surcharge calculator shows the math.
In-house vs outsourced freight audit and payment
A shipper can do this with its own accounts payable team. That works when invoice volume is small and the carrier list is short. Someone checks each bill against the paperwork and keys it into the accounting system.
It stops working when volume climbs. Every dispute takes phone calls and emails, and AP clerks are not freight people. That is why so many shippers hand it off. Sheer’s guide says many shippers bring in a 3PL or 4PL for exactly this reason, though keep in mind they sell the service.
Outsourcing usually means a provider that does three things:
- Receives the invoices directly from carriers and brokers, on paper, by EDI or through a web portal
- Runs the audit with its own software and people
- Pays the carriers out of a funded account, often consolidating many bills into one payment
The big players are large. Cass Information Systems says on its freight audit and payment page that it processes and pays $37 billion in freight spend a year across 35 million freight invoices, with more than 15,000 carriers in its payment network. Those are Cass’s own numbers.
How freight audit and payment services charge
| Pricing model | How it works | What to watch |
|---|---|---|
| Percentage of spend | The fee is a percentage of the freight spend that gets audited. | Your cost rises with freight rates, even if invoice count stays flat. |
| Per invoice or per BOL | A flat fee for each bill audited, so cost tracks activity. | Ask whether parcel, LTL and truckload bills are priced the same. |
| Subscription | A flat software fee for broad coverage and predictable cost. | Find out who works the disputes. Software alone does not call the carrier. |
| Contingency | The provider keeps a percentage of the overcharges it recovers. | Lowers your risk, but you keep less of each recovery. |
Sources: Lojistic, Racklify. Neither source publishes actual fee rates, and Cass and TranzAct do not post prices either.
Freight audit and payment companies, and what to ask them
There are a lot of these companies. Gartner’s peer review section for freight audit and payment providers lists 44 products, including Cass, TranzAct, Trax, Intelligent Audit, nVision Global, U.S. Bank Freight Payment, Orca and Loop. TranzAct’s site says it has been working for shippers since 1984 and now pairs its audit work with its own TMS.
Since nobody posts a price list, you will be comparing quotes. Here is what we would ask before signing:
- Is the audit done before payment, after payment, or both?
- Which modes do you cover? Truckload, LTL, parcel, ocean?
- How do carriers send invoices to you? Mail, EDI, a portal, an API?
- Who works disputes, and how long does a typical one take?
- When do carriers get paid after we approve, and can they get paid early?
- What happens to our money between when we fund the account and when the carrier is paid?
- What reports do we get, and can we export the raw data?
That last one matters more than it sounds. The reporting is often where the real value sits, because it tells you which lanes and carriers keep generating errors.
Where a freight broker sits in freight audit and payment
This is the part most FAP explainers skip. A broker is in the middle. Your shipper customer, or its FAP provider, audits your invoice. Then you turn around and check and pay the carrier’s invoice.
When a shipper’s FAP provider audits you
When a shipper uses a provider, your invoice goes to that provider, not to the shipper. The provider has rules, and if your invoice does not follow them, it sits.
Look at the carrier billing guide 3M Canada published for its carriers. Invoices go to 3M Canada in care of ORCA, an audit firm. The shipper’s BOL number has to be on the invoice in a set format. Extra charges like detention belong on the original invoice, and a later balance-due bill needs a letter or email from a 3M representative approving the charges. The guide warns that invoices using the wrong BOL reference will be delayed.
Cass works the same way. Its carrier help center says invoices can go in by mail to the client in care of Cass, through its CassPort portal, or by EDI 210. It also says an invoice has to be approved and fully processed before it can be paid, and that once you submit an invoice there is no way to pull it back. So a sloppy invoice costs you time you cannot get back.
Practical takeaways for brokers:
- Get the customer’s billing instructions in writing when you set them up, including which reference numbers go where
- Put every approved accessorial on the first invoice with the approval attached, not on a balance-due bill weeks later
- Make sure the signed BOL and the POD are clean and attached before you bill
- If the customer wants EDI invoices, ask about it at setup, not after the first load delivers
When you are the one paying carriers
On the other side, you are doing your own small version of freight audit and payment every day. A carrier sends an invoice. You check it against the rate con you both signed, the BOL and the POD, plus any detention or lumper you approved. Then you pay, or the carrier’s factoring company collects. If freight factoring is new to you, start with the glossary entry.
Most brokers do not hire a FAP provider for this. They need clean paperwork attached to each load, a habit of matching invoices to the rate con, and a way to see which delivered loads are still missing something before anyone bills or pays.
Where FreightVero fits
FreightVero is a TMS for brokers, not a FAP provider. Its billing queue holds every delivered, unbilled load and checks it against that customer’s paperwork rules, so a load missing a required document gets flagged before you invoice. It does not send invoices or pay carriers today. Carrier pay is not built, and the QuickBooks Online integration is built but waiting on Intuit’s approval, so nothing syncs yet.
Final thoughts
Freight audit and payment is just the discipline of checking the bill before you pay it, done at scale. Shippers outsource it because the volume gets away from them. Brokers mostly live with its effects. Your invoices get audited by someone else’s rules, and your carriers’ invoices need the same scrutiny from you.
The brokers who get paid fastest are not the ones with the fanciest software. They are the ones whose paperwork matches on the first try. Get the customer’s billing rules, attach the right documents, and bill approved extras up front. That is most of the battle.