What Freight Audit and Payment Does
Freight audit and payment (FAP) is a service that reviews shipping invoices from carriers, checks them for errors, and processes payment on your behalf. The service sits between you and the trucking company or shipping provider. Instead of you paying each invoice as it arrives, the FAP provider collects the invoices, verifies the charges against what you actually ordered and received, flags overages or mistakes, and then pays the carrier.
The core work is catching billing errors before money leaves your account. A carrier might charge you for weight that was never shipped, apply the wrong rate, double-bill a shipment, or add fees that weren't in your contract. An FAP service catches these before payment goes out. They also consolidate payments, which can reduce the number of transactions you process each month and give you better visibility into what you are spending on freight.
Most FAP providers also generate reports showing your shipping costs by lane, carrier, weight, and time period. This data helps you negotiate better rates with carriers and spot patterns—like whether certain routes are consistently overpriced or whether a carrier is padding invoices.
Key Takeaways
- Freight audit and payment services review carrier invoices for billing errors, overcharges, and duplicate charges before paying the carrier.
- The service typically catches 2 to 5 percent of invoices with errors, though the percentage varies by carrier, industry, and invoice volume.
- You receive reports on shipping spend by route, carrier, and weight, which you can use to renegotiate rates or identify cost patterns.
- Payment timing depends on your contract with the FAP provider, but most hold invoices for 5 to 10 business days to complete the audit before paying the carrier.
- FAP providers charge either a percentage of the invoices they process, a flat fee per invoice, or a monthly subscription, depending on the vendor and your volume.
How the Audit Process Works
When a carrier sends you an invoice, it goes to the FAP provider instead of directly to your accounting department. The provider scans the invoice against your freight contract terms, your purchase orders, and the actual shipment records from your warehouse or logistics system.
The audit checks for common errors: weight discrepancies (the invoice says 5,000 pounds but your scale recorded 4,800), rate mismatches (the carrier applied a higher rate than your contract allows), duplicate line items, fuel surcharges that exceed the contract cap, and accessorial charges (fees for lift-gate service, inside delivery, or residential delivery) that you did not request or authorize.
If the invoice passes the audit, the FAP provider approves it for payment. If errors are found, the provider either corrects the invoice and pays the reduced amount, or flags it for you to dispute with the carrier directly. Some FAP services will negotiate the correction with the carrier on your behalf; others send you a report and let you handle the dispute.
The entire audit cycle typically takes 5 to 10 business days from invoice receipt to payment. During this window, the FAP provider holds the money, which gives you a small amount of float—the carrier does not get paid immediately, but you also do not have to pay until the audit is complete.
What Errors FAP Services Usually Find
The most common billing errors are weight overages. A carrier might weigh the shipment at their facility and record a higher weight than what your scale showed at pickup or delivery. If your contract specifies that your weight is the controlling weight, the invoice should reflect your number, not the carrier's. FAP services catch this by comparing the invoice weight to your shipment records.
Rate errors are also frequent. A carrier might apply a standard rate when your contract includes a volume discount, or apply a regional rate to a shipment that qualifies for a lower lane rate. FAP providers cross-reference the shipment details (origin, destination, weight, commodity) against your rate card to verify the correct rate was used.
Duplicate charges happen less often but are expensive when they do. A shipment might be invoiced twice—once by the carrier's main billing system and once by a regional office. An FAP service catches duplicates by tracking invoice numbers and shipment identifiers across all invoices received in a period.
Unauthorized accessorial charges are another category. A carrier might bill for inside delivery or lift-gate service that was not requested. Your contract may cap fuel surcharges at a certain percentage; if the invoice exceeds that cap, the FAP service flags it. Some carriers add environmental fees or administrative charges that your contract does not allow.
Payment Methods and Timing
Once an invoice passes audit, the FAP provider pays the carrier using the method specified in your contract with them. Most FAP services offer ACH (automated clearing house) transfers, which take 1 to 2 business days to clear. Some also offer check payment, wire transfer, or credit card payment, though credit card typically costs more because of processing fees.
The timing of payment to the carrier depends on your agreement with the FAP provider. Some services pay within 1 business day of audit completion. Others batch payments and pay once per week or twice per month. A few offer same-day payment for an additional fee. Your contract with the FAP provider will specify the payment schedule.
You, as the shipper, typically do not pay the FAP provider until after they have paid the carrier. This means you are not funding the payment yourself; the FAP provider is advancing the money and collecting their fee from the savings they generate or from the invoices they process. Some FAP providers charge you upfront and then credit back their fee if they find errors; others deduct their fee from the amount they pay the carrier.
How FAP Providers Charge for Their Service
Freight audit and payment services use three main pricing models: percentage of invoices processed, per-invoice flat fee, or monthly subscription.
Percentage of invoices processed: The provider charges a percentage (typically 1 to 3 percent) of the total dollar amount of all invoices they audit and pay. If you process $100,000 in freight invoices per month and the FAP provider charges 2 percent, you pay $2,000 per month. This model aligns the provider's fee with your shipping volume.
Per-invoice flat fee: The provider charges a fixed amount per invoice, usually $2 to $5. If you receive 500 invoices per month at $3 per invoice, you pay $1,500 per month. This model works better if your invoices are small and numerous, or if your total spend is low.
Monthly subscription: You pay a flat monthly fee regardless of volume, usually $500 to $2,000 per month depending on the provider and your expected invoice count. This model works best if your shipping volume is predictable and high enough to justify the fixed cost.
Some FAP providers also offer a hybrid: a base monthly fee plus a percentage of savings found. For example, they might charge $500 per month plus 50 percent of any overcharges they recover. This incentivizes the provider to find errors on your behalf.
When FAP Makes Sense for Your Business
Freight audit and payment is most useful if you ship frequently and receive invoices from multiple carriers. If you process fewer than 20 freight invoices per month, the cost of FAP service may exceed the savings. If you ship with only one carrier and have a simple rate structure, the risk of billing errors is lower, and FAP may not be necessary.
FAP is valuable if your freight spend is high (typically $50,000 or more per year) because even a 1 to 2 percent error rate translates to meaningful savings. It is also useful if you lack internal resources to audit invoices yourself or if your accounting team is overwhelmed with invoice processing.
FAP can also improve your negotiating position with carriers. The data reports from an FAP service show you exactly what you are paying per lane, per carrier, and per weight class. This transparency makes it easier to request rate reductions or to switch carriers if a competitor offers better pricing for the same service.
What Information You Need to Provide
To set up a freight audit and payment service, you will need to provide your freight contracts with each carrier, your rate cards, and your shipment records or a way for the FAP provider to access them. Most FAP providers integrate with your transportation management system (TMS) or your accounting software to pull shipment and invoice data automatically.
You will also need to specify your payment preferences: which carriers to pay, how often to pay them, and which payment method to use (ACH, check, wire). If you have special billing rules—for example, if certain shipments should be billed to a customer rather than paid from your account—you will need to document those as well.
The FAP provider will ask for contact information for your carriers so they can verify invoices or dispute charges if needed. Some providers also request your company's tax ID and banking information to set up the payment accounts they will use to pay carriers on your behalf.
Frequently Asked Questions
Does the FAP provider hold my money, or does the carrier get paid right away?
The FAP provider holds the money during the audit period, typically 5 to 10 business days. Once the audit is complete and the invoice is approved, the provider pays the carrier according to your payment schedule—usually within 1 to 3 business days. You do not pay the FAP provider until after they have paid the carrier, so you are not funding the service upfront.
What happens if the FAP provider finds an error and the carrier disputes the correction?
Most FAP providers will attempt to resolve the dispute with the carrier directly. If the carrier refuses to accept the correction, the FAP provider will either pay the full invoice and credit you the disputed amount, or flag it for you to handle. Your contract with the FAP provider should specify who bears the cost if a dispute cannot be resolved.
Can I use FAP if I have a contract with a 3PL or freight broker instead of directly with carriers?
Yes, but the audit process is slightly different. The FAP provider will audit the invoice from your 3PL or broker against your contract with them, rather than against individual carrier contracts. The savings potential is usually lower because the 3PL has already marked up the carrier's rate, but FAP can still catch billing errors or unauthorized charges.
How long does it take to set up freight audit and payment?
Setup typically takes 2 to 4 weeks. You will need to provide your freight contracts, rate cards, and shipment records, and the FAP provider will need to integrate with your systems or establish a process for receiving invoices. Once integration is complete, the service begins processing invoices immediately.
What if I stop using a carrier—do I need to notify the FAP provider?
Yes. You should update your carrier list and contracts with the FAP provider so they stop processing invoices from that carrier. If invoices continue to arrive after you have stopped shipping with a carrier, the FAP provider should flag them as unusual. This prevents accidental duplicate payments or invoices from old shipments.