A freight bill is an invoice issued by a carrier or freight service provider after transporting goods, detailing every charge associated with that shipment. It functions as a billing statement sent to the shipper (or a third party responsible for payment) and serves as the primary document for settling transportation costs. If you’ve received one or need to issue one, understanding what’s on it and how the payment process works will help you avoid overpaying or missing deadlines.
What a Freight Bill Includes
A freight bill is centered around costs and payment. It typically references information from the bill of lading (the contract created when the carrier first picks up the goods) and then layers on all the financial details. You’ll generally see these line items:
- Base freight charges: The core cost of moving the shipment from origin to destination, usually calculated by weight, distance, freight class, or a combination of all three.
- Fuel surcharges: An additional percentage or flat fee that fluctuates with diesel prices. Carriers adjust this regularly, so the surcharge on one shipment may differ from the next.
- Accessorial fees: Extra charges for services beyond a standard pickup and delivery. Common examples include liftgate service (using a hydraulic lift to load or unload at locations without a dock), inside delivery, residential delivery, detention time (when a driver waits beyond a set window), and reweigh or reclassification fees.
- Duties or taxes: Applicable on international shipments or when government fees apply.
Beyond the charges themselves, the freight bill identifies the shipper, the consignee (the party receiving the goods), a description and quantity of what was shipped, the shipment date, and a reference or tracking number that ties back to the original bill of lading. This cross-referencing is what makes it possible to verify that you’re being billed for the correct shipment at the correct rate.
Freight Bill vs. Bill of Lading
People often confuse these two documents because they appear on the same shipment, but they serve different purposes. A bill of lading is created before or at the time of pickup. It acts as a receipt confirming the carrier received the goods in a stated condition, a contract defining each party’s responsibilities during transit, and a document of title that can transfer ownership of goods while they’re in motion. Without it, the carrier has no official record of receiving the shipment, and the consignee can’t prove ownership or request delivery.
The freight bill comes after the shipment is complete. It’s purely financial. Think of the bill of lading as the “what, where, and how” of a shipment, and the freight bill as the “how much.” The freight bill often pulls data directly from the bill of lading (shipment weight, origin, destination, freight class) to calculate charges, which is why discrepancies between the two documents are a common source of billing errors.
Federal Rules on Timing and Payment
For motor carriers operating under federal regulations, specific rules govern when a freight bill must be presented and how quickly it must be paid. Under 49 CFR Part 377, carriers must present their freight bill within 7 business days (excluding weekends and holidays). For prepaid shipments, that clock starts when the carrier picks up the goods. For collect shipments, it starts on the delivery date. If the carrier doesn’t yet have enough information to calculate charges, the 7-day window begins once that information becomes available at the billing point.
Once you receive the freight bill, the default credit period is 15 calendar days, including weekends and holidays. Carriers can publish tariff rules extending or shortening that window, but the maximum allowed is 30 calendar days. If a carrier later sends a supplemental freight bill for additional charges it missed initially, you get a fresh 30-day credit period for those added amounts.
Missing the payment deadline can trigger collection charges. Carriers are allowed to assess reasonable liquidated damages for overdue freight charges. However, they can’t impose those penalties when the late payment resulted from clear clerical errors, like the carrier mailing the bill to the wrong address, the shipper’s payment check getting lost in the mail, or the shipper simply never receiving the bill in the first place.
Why Freight Bills Get Audited
Freight bill auditing is standard practice for any business that ships regularly, and for good reason. Billing errors are common in an industry where charges depend on weight, dimensions, freight class, distance, and accessorial services, all of which can be recorded differently at various points in the shipping process. A shipment that gets reweighed at a terminal might come back at a higher weight than what was on the original bill of lading, triggering a larger charge. An accessorial fee for liftgate service might appear even though the delivery location had a loading dock.
The audit process works by comparing the freight bill against the contracted rates you negotiated with the carrier, the shipment details on the bill of lading, and any applicable tariff rules. Businesses that ship in high volume often use freight audit and payment software or third-party providers that automate this comparison. These systems collect invoices electronically (through EDI, web portals, or scanned paper invoices), match each line item to the contract on file, and flag discrepancies before payment goes out.
Beyond catching overcharges, regular auditing gives you data to evaluate carrier performance, improve budget forecasting, and spot patterns like a carrier that consistently applies incorrect fuel surcharges or bills for services that weren’t provided. Even small per-shipment errors add up quickly when you’re moving hundreds or thousands of loads a year.
How to Read and Verify a Freight Bill
When a freight bill arrives, start by matching it to the corresponding bill of lading. Confirm the shipment weight, origin, destination, and freight class are consistent across both documents. Then check the base rate against your carrier contract or rate agreement. If you negotiated a per-hundredweight rate or a flat rate for a specific lane, the math should be straightforward.
Next, review each accessorial charge. Ask whether you actually requested or received each service listed. Liftgate, detention, and residential delivery fees are the most commonly disputed accessorials because they depend on conditions at the pickup or delivery site that can be interpreted differently by the driver and the shipper.
Finally, verify the fuel surcharge. Most carriers publish their surcharge tables weekly or monthly, pegged to a national diesel index. The surcharge on your freight bill should match the rate that was in effect on your shipment date, not the date the bill was generated. If you find a discrepancy, contact the carrier’s billing department with your bill of lading number and the specific charge in question. Disputes over mailing dates are resolved by the postmark, per federal regulation.