Accessorial

Carrier note

Use this term in context with the rate confirmation, broker communication, facility instructions, and billing paperwork. A short definition is useful, but the written load terms control the actual freight decision.

Carrier example

A carrier sees accessorial mentioned during dispatch and checks whether the rate confirmation says how approval, documentation, and billing should work.

Common mistake

Assuming accessorial is approved because it was discussed by phone.

Paperwork note

For accessorial, keep written approval, timestamps, receipts when relevant, BOL, POD, revised confirmation, and invoice notes.

Why accessorial approval matters

An accessorial charge is easier to bill when the rate confirmation or written broker approval explains the event, amount or method, and required proof. A phone conversation may be useful for dispatch, but the billing file usually needs something written.

Carriers should look for approval language before the event happens when possible. Detention, lumper, layover, stop-off, driver assist, redelivery, and TONU can each require different proof.

Accessorial versus ordinary linehaul work

Linehaul covers the basic transportation move. An accessorial addresses added service or cost outside that base movement, but the label alone does not establish that it is payable. The carrier still needs to identify the event, the written term, any approval requirement, and the proof named by the broker or customer.

When reviewing a confirmation, separate known extras from possible future events. A scheduled stop may be priced before dispatch, while detention depends on what happens at the facility. Keeping those categories separate makes both the booking calculation and the final invoice easier to audit.

Questions to ask in context

• Is the charge listed on the original confirmation or approved later in writing?
• What records support the event: timestamps, receipts, facility notes, revised confirmation, BOL, or POD?
• Does the broker require approval before the cost is incurred?

References and methodology

• Accessorial documentation editorial methodology - LaneMath Editorial Desk. Used here for: Detention, lumper, layover, TONU, revised confirmation, and post-delivery document workflow examples.Used for documentation workflows and example scenarios, not for legal claims about collectability. Last checked 2026-06-29.
• Industry terminology and editorial explanation - LaneMath Editorial Desk. Used here for: Plain-English definitions, checklists, and example-only calculations.Editorial explanations are not official guidance, legal advice, or market data. Last checked 2026-06-29.