Detention, TONU, Layover, and Trucking Accessorial Charges Explained

Keep the event, agreement, expense, and claim separate

An operational event is what happened: the truck waited, a load was canceled, delivery moved to another day, or an additional service was performed. The agreement states whether and how that event is compensable. An expense is a cost the carrier incurred. A claim or invoice line is the documented amount requested. Those four things may relate, but they are not interchangeable.

For example, a driver can incur time and fuel during a delay even when the agreement provides no collectible detention. Conversely, an agreed hourly detention amount is not calculated from the carrier’s fuel receipt. Keeping each layer separate makes the record easier to explain and avoids turning an internal loss estimate into an unsupported customer charge.

Detention: calculate billable time after free time

Start with total wait and subtract the free period stated in the terms. The result cannot be less than zero. Multiply qualifying billable hours by the agreed hourly rate. The agreement may define rounding increments, caps, minimums, exclusions, notice requirements, or different rules for pickup and delivery; a basic calculator does not infer them.

Suppose a hypothetical truck waits 4.25 hours, the entered free period is 2 hours, and the stated hourly rate is $55. Billable time is 4.25 − 2 = 2.25 hours. With no separate contractual rounding rule entered, the simple estimate is 2.25 × $55 = $123.75.

TONU: model a stated amount without inventing one

A TONU calculation should begin with an amount supported by the applicable terms or written agreement. Torz Freight’s quick tool can show that entered claim amount and subtract direct expenses to estimate economic recovery. The direct-cost comparison is an internal planning view; it does not change the amount actually authorized for invoicing.

If the stated TONU amount is $300 and modeled direct expense is $85, the entered claim remains $300 while net recovery is $215. Do not add lost linehaul revenue, an assumed industry standard, or every overhead item to the customer charge unless the agreement supports it.

Layover and other accessorials: define quantity and rate

A layover estimate can multiply entered days by an entered daily rate. An additional expense should be added to a customer-facing amount only when it is authorized for reimbursement. If two days are entered at $250 per day and $60 of authorized expense is included, the quick estimate is 2 × $250 + $60 = $560.

The word “day” may be defined differently across agreements, and a partial period may not automatically earn a full rate. For another accessorial, use the same discipline: identify the service, record the quantity and unit, preserve the agreed rate, and add only authorized expense or reimbursement. An entered three stops at $45 each plus $20 authorized reimbursement would produce $155, but the agreement decides whether those inputs are valid.

A documentation sequence that supports review

1. Read the accessorial language before accepting the load and note any notice, document, time, or approval condition.
2. Record appointment, arrival, check-in, loading or unloading, release, cancellation, and departure times using a consistent time zone.
3. Notify the appropriate party when the stated threshold or event occurs, using the channel required by the agreement.
4. Preserve the rate confirmation, messages, names or reference numbers, receipts, electronic records, and signed paperwork relevant to the event.
5. Calculate from the authorized quantity, rate, free period, and reimbursement terms; keep internal economic loss separate.
6. Record claim status such as draft, submitted, approved, denied, invoiced, paid, or disputed without presenting an unapproved amount as revenue.

How accessorials affect load economics and cash flow

Delay can reduce the practical value of a load even before a claim is decided. It can consume hours that were expected for another pickup, create parking or fuel costs, and change the truck’s next position. Compare the load’s revised time and cost with the original analysis instead of assuming an accessorial makes the operation whole.

An approved accessorial can increase invoice revenue; an unsubmitted or disputed request is not the same thing. An invoice then creates a receivable, and only a recorded payment creates cash receipt. Torz Money Desk keeps these states separate so projected, approved, billed, and paid amounts are not collapsed into one number.

Common mistakes and important limits

• Using a remembered “standard rate” instead of the governing written terms.
• Failing to subtract the agreed free period before calculating detention.
• Rounding time in the carrier’s favor without a contractual rounding rule.
• Adding internal operating expenses to an invoice without authorization.
• Recording a requested amount as approved revenue or paid cash.
• Losing time-zone, appointment, notice, or release evidence needed to explain the event.
• Assuming a calculator result establishes legal entitlement or collectability.