The 5 Most Commonly Missed Accessorial Charges in Freight Billing
The base freight rate almost always makes it onto the shipper invoice. It’s the number in the customer contract or load tender, it’s in the TMS, and the billing team knows to look for it. Accessorial charges follow a more complicated path, and along that path, they fall off.
We plan around 2-5% of billable revenue left uncaptured at freight companies operating without a structured pre-billing audit. On a $30 million book of business, that’s $600,000 to $1.5 million annually: not in bad debt, but in charges that were earned, documented somewhere in the load file, and never billed.
This post covers the five revenue leak types that get missed most often (four accessorial charges and contract rate discrepancies), explains the specific documentation failure behind each one, and describes what the capture process looks like.
Why Do Detention Charges Get Lost Between Dispatch and Billing?
Detention is the most commonly missed accessorial. The driver waits beyond the free time window at a shipper or receiver. The charge accrues per the customer’s detention terms. Dispatch knows: the driver called it in. But the detention information lives in dispatch’s world (in notes, texts, or verbal updates) and doesn’t always reach billing in a structured format.
The fix: a structured detention field in the TMS that dispatch populates at the time of the event, not a general note. The pre-billing audit checks every load for detention regardless of whether the field is populated, by reviewing dispatch notes and driver documentation against the customer contract’s detention terms.
Why Do Layover Charges Fall Through the Cracks?
Layover occurs when a driver can’t complete a pickup or delivery on the scheduled day and waits overnight. The customer contract typically specifies a flat daily rate. The documentation failure is that layover events often aren’t entered as structured TMS events: dispatch logs the delay as a note, but the billing team sees a standard delivery date and no layover indicator.
The fix: a structured layover field plus a pre-billing check that compares the actual pickup/delivery date against the originally scheduled date. A date mismatch triggers a layover review.
Why Does TONU Revenue Disappear from the Billing Workflow?
TONU (Truck Ordered Not Used) is charged when a load cancels after a carrier is dispatched. The unique problem: the billing workflow is built around loads that moved. A canceled load may be voided in the TMS and never enter the billing queue at all, even though the TONU fee was paid to the carrier and is billable to the shipper.
The fix: a separate TONU log maintained by dispatch, tracked independently from the standard billing queue. The pre-billing audit cross-references the TONU log against shipper invoices to ensure every TONU paid to a carrier has a corresponding charge to the shipper.
Why Do Lumper Fees Go Missing Between the Truck and the Invoice?
Lumper fees are charged when a driver pays a warehouse crew for loading or unloading. The documentation chain is physical: a paper receipt from the warehouse needs to travel from the driver’s truck to the billing team’s file. At scale, a percentage of those receipts never arrive.
The fix: same-day digital capture. The driver photographs the lumper receipt at the warehouse and uploads it through a mobile tool or texts it to a designated number. The receipt enters the system the same day as the transaction. Without digital capture, a weekly reconciliation of authorized lumper payments against documented receipts catches gaps before invoicing.
How Do Contract Rate Discrepancies Silently Erode Margin?
Contract rate discrepancies are the least visible missed charges because they involve a wrong number, not a missing event. The TMS auto-populates the rate from the last load on the same lane. If the rate changed since then, the invoice goes out at the old rate. The per-load difference is $20-$50. Across a few thousand loads a year, it adds up to five figures.
The fix: the pre-billing audit verifies the invoiced rate against the current customer contract rate on every load, not the TMS field (which may be stale). Base rate, fuel surcharge, and accessorial rates are each verified individually.
How Much Revenue Do These Five Charge Types Cost Annually?
The aggregate impact varies by brokerage, but a reasonable estimate at 3,000 loads per month:
Detention: $13,500/month ($162,000/year) at a 30% miss rate on loads with detention events. Layover: $12,000/month ($144,000/year). TONU: $7,500/month ($90,000/year). Lumper fees: $18,000/month ($216,000/year). Rate discrepancies: $4,500/month ($54,000/year).
Combined: roughly $55,500/month or $666,000 annually. At a $30 million brokerage (about $830 of revenue per load at this volume), that’s roughly 2% of revenue, at the low end of the 2-5% range we plan around.
| Charge | Where it gets lost | The paper that proves it |
|---|---|---|
| Detention | Between the driver’s in/out times and the billing queue | Timestamped arrival and departure, per the customer contract’s free-time terms |
| Layover | Dispatch knows, billing never hears | Dispatch note plus the reschedule record |
| TONU | No delivery means no load file to bill from | The cancellation record and the dispatched rate confirmation |
| Lumper fees | A paper receipt in a truck cab | The lumper receipt, photographed same day |
| Rate discrepancies | TMS default rate vs the negotiated rate | The customer contract or the load-specific rate confirmation |
The middle column is the pattern worth noticing: every one of these dies in a handoff. The charge is known to somebody, at some point, on some piece of paper. Full definitions for all 24 charge types, including the ones this post skips, are in the accessorial charge reference; the revenue at stake for your volume runs through the revenue leakage calculator.
How Does a Pre-Billing Audit Catch All Five?
The pre-billing audit sits between invoice preparation and invoice submission, the last quality gate before the invoice goes to the shipper. On every load, the audit checks:
Dispatch notes and driver documentation for detention, layover, and TONU events. The lumper fee documentation file for receipts that should be billed through. The invoiced rate against the current customer contract rate for all line items: base rate, fuel surcharge, and accessorial rates.
Charges caught by the audit get added to the invoice before submission. This is the best window to capture the revenue. Once the invoice goes out at the base rate, the accessorial charges are much harder to recover, especially after the invoice is paid.
ClearLane runs a pre-billing revenue recovery audit on every load as part of the full post-dispatch pipeline: the same team handling POD retrieval, accounts payable (AP) invoice verification, shipper billing, accounts receivable (AR) management, and bookkeeping.
Want to estimate your accessorial capture gap? Talk to our team to walk through the pre-billing audit. Or download the pre-billing audit checklist. Email us at info@getclearlane.com.
Frequently Asked Questions
Detention (driver wait time), layover (overnight delays), TONU (canceled loads after dispatch), lumper fees (warehouse loading/unloading), and contract rate discrepancies (TMS auto-populating old rates). Each has a different documentation failure that causes it to fall off the invoice.
We plan around 2-5% of billable revenue going uncaptured at companies without a structured pre-billing audit. At a $30 million brokerage, that’s $600,000-$1.5 million annually in charges that were earned but never invoiced.
A structured review of every load file before the shipper invoice goes out, checking for missed accessorial charges, rate accuracy, documentation completeness, and billing information correctness. It’s the last quality gate before the invoice leaves the building.
Sometimes, as a supplemental invoice, but recovery gets much harder once the original invoice is paid. Many customer contracts set a window for late accessorial charges, so bill them quickly. Catching them before the first invoice goes out is why the pre-billing audit exists.
Because the billing workflow is built around loads that moved. A canceled load may be voided in the TMS and never enter the billing queue, even though the TONU fee was paid to the carrier and is billable to the shipper.
Want every accessorial captured before the invoice goes out? Talk to our team to walk through it. Or email us at info@getclearlane.com.