Detention Pay Explained: Free Time, Terms, and Negotiation
Detention pay compensates carriers for facility waiting time beyond agreed free time. Free-time length, rates, and documentation rules vary by contract — verify your rate confirmation. Win claims with timestamped arrival/departure records, real-time communication, prompt submission, and negotiated terms before accepting the load.
Detention pay is the trucking industry's answer to a simple injustice: the carrier's time has value, and when a shipper or receiver keeps a truck waiting beyond a reasonable window, somebody should pay for those hours. In practice, detention is one of the most negotiated — and most disputed — accessorial charges in freight. Every carrier encounters it; too few manage it well.
The concept is straightforward. When you arrive for a scheduled pickup or delivery, the facility gets a window of 'free time' to load or unload you. Time beyond that window is detention, and it is billable — at a rate, under terms, and with documentation requirements that vary by contract. That variation is the whole story: detention terms live in rate confirmations and carrier agreements, not in universal industry tables.
This page explains detention pay conceptually: what free time is, when detention applies, how the billing and documentation work, and how carriers negotiate better terms. We state no universal dollar amounts or hour thresholds, because none exist — any page that quotes them as industry standard is inventing facts. The rule throughout: terms vary by contract, so verify your rate confirmation.
Free Time: The Window Before Detention Starts
Free time is the grace period a facility gets to load or unload your truck before detention billing begins. It starts when you arrive — or more precisely, when you check in and are ready to be loaded or unloaded, which is why documenting your arrival time matters. The length of free time is a contract term: it is whatever your rate confirmation or carrier agreement says it is.
Because free time varies, the first detention discipline is reading the paperwork. A rate confirmation that specifies free time and the detention rate is a workable document; one that is silent on both leaves you negotiating after the fact, from weakness. Before you roll to a facility known for slow turns, confirm the detention terms in writing.
Free time also has practical edges worth knowing. Some facilities count free time from appointment time rather than actual arrival; some exclude time spent waiting for an available door versus time being loaded. These distinctions matter when you dispute a detention claim, and they are exactly the kind of detail that belongs in your arrival documentation.
When Detention Applies — and When It Does Not
Detention applies when the facility's loading or unloading operation exceeds the agreed free time. The classic cases: the appointment was overbooked and trucks queue for hours; the warehouse is short-staffed; the product is not ready; or a live load turns into an extended sort-and-segregate exercise nobody warned you about.
Detention typically does not apply to delays the carrier causes. Arrive late for your appointment and the facility's obligation clock usually resets — you cannot bill for time lost to your own tardiness. Similarly, time spent on carrier-side issues (equipment problems, HOS breaks you chose to take at the facility) is generally not detention.
The gray zone is where disputes live: the facility claims you arrived late, you claim the appointment was moved; the lumper finished but the paperwork took another hour; you were 'worked in' between other trucks. This is why contemporaneous documentation — timestamps, names, photos of the queue — decides detention disputes far more often than contract language does.
How Detention Billing Works
Detention is billed as an accessorial charge, usually calculated per hour (or fraction thereof) beyond free time, at the rate stated in the rate confirmation or carrier agreement. Like the free time itself, the rate varies — it is a negotiated term, not a standard. Some agreements cap total detention per occurrence; some require pre-approval beyond a certain point.
The billing path runs through whoever tendered you the load — typically the broker. You submit the detention request with documentation to the broker, who bills the shipper. This chain is where detention claims die: brokers may resist passing through charges the shipper disputes, and shippers may deny that the delay was their fault. Your leverage is documentation quality and contract clarity.
Timing matters. Submit detention promptly — the same day or next day — with arrival and departure timestamps, the contact name at the facility, and a description of the delay. Stale claims with vague details get denied; fresh claims with specifics get paid. Build the habit of documenting every facility visit as if you will need to bill detention, because some days you will.
Documentation: The Difference Between Paid and Denied
Winning detention claims is a documentation game. The carrier who can show check-in time, check-out time, who they spoke with, and what caused the delay gets paid; the carrier who says 'I waited a long time' does not. Make timestamping automatic: photo the check-in paperwork, screenshot your arrival ping, note the guard's name.
Modern tools help. ELD location data, timestamped messaging with dispatch, and facility check-in apps all create independent records of when you arrived and left. When the facility's records disagree with yours — and in disputes they often do — corroborating evidence from multiple sources is persuasive.
Communicate during the delay, not after it. A message to dispatch at the two-hour mark ('still waiting, 14 trucks ahead of me, spoke with receiving') creates a contemporaneous record and alerts your team while options still exist — like rescheduling the next load or starting the detention conversation with the broker in real time rather than as a surprise invoice later.
Negotiating Better Detention Terms
Detention terms are negotiable before you accept the load, and that is when you have leverage. If you know a facility is slow — and experienced carriers and dispatchers keep mental lists — ask for better terms upfront: shorter free time, a higher detention rate, or a guaranteed minimum. The broker would rather adjust terms than lose a reliable truck.
Use your track record. Carriers with documented on-time performance can demand better detention terms because they arrive when promised — the facility's delay is unambiguously the facility's fault. Reliability is negotiating currency across every accessorial, and detention is no exception.
Know when to walk away. A load into a notoriously slow facility with no detention terms on the rate confirmation is a load priced without its true cost. Sometimes the right negotiation outcome is declining the load — or quoting a linehaul rate high enough to absorb the expected delay. The cheapest-looking load is often the most expensive once detention reality sets in.
Detention, Layover, and TONU: Related but Different
Detention covers waiting at a facility during a load. Layover covers longer delays — typically when a delay forces an extra day, such as a missed appointment that pushes delivery to the next day or a shipper-cancelled reload that strands the truck. TONU (truck ordered not used) covers the cancelled load: the truck was dispatched and the load evaporated. Each is a separate accessorial with separate terms.
The practical point is to claim the right one. Billing detention when the situation was really a layover understates your loss; billing layover for a three-hour facility delay overstates it and damages credibility. Read your agreement's definitions and match the claim to the event.
All three share the same foundation: written terms before the event, documentation during the event, and prompt submission after it. Carriers who systematize this — a standard detention/layover/TONU process rather than ad-hoc arguing — collect meaningfully more accessorial revenue over a year than carriers who treat each incident as a surprise.
Key takeaways
- Detention terms — free time, rate, documentation — vary by contract; verify your rate confirmation.
- Document arrival and departure with timestamps, names, and photos at every facility.
- Communicate delays to dispatch in real time, not after the fact.
- Negotiate detention terms before accepting loads to slow facilities.
- Late arrival generally voids detention — on-time performance protects the claim.
- Detention, layover, and TONU are distinct accessorials; claim the right one.
Questions carriers ask
What is detention pay in trucking?
Compensation for time a truck spends waiting at a shipper or receiver beyond the agreed free time. The free-time length, the detention rate, and the documentation requirements all vary by contract — they are terms in your rate confirmation or carrier agreement, not universal standards.
When does detention start?
After the agreed free time expires, measured from your documented arrival and check-in. The exact trigger — appointment time versus actual arrival, what counts as waiting — depends on your contract terms, which is why reading the rate confirmation matters.
How do I get detention pay approved?
Document arrival and departure times, who you spoke with, and the cause of delay; communicate with dispatch during the wait; and submit the claim promptly to whoever tendered the load, usually the broker, with all timestamps attached. Fresh, specific claims get paid; stale, vague ones get denied.
What if my rate confirmation says nothing about detention?
Then you are negotiating after the fact, from weakness. Ask for detention terms before accepting loads, especially to facilities known for slow turns. A confirmation silent on detention is a warning sign about the load's true cost.
Does detention apply if I arrive late?
Generally no — delays caused by the carrier, including late arrival, typically reset the facility's obligation. Detention covers the facility's delays, not yours. This is another reason on-time arrival protects your accessorial revenue.
What is the difference between detention, layover, and TONU?
Detention is waiting at a facility beyond free time during a load; layover is a longer delay, typically forcing an extra day; TONU is a cancelled load after the truck was dispatched. Each is a separate accessorial with its own terms — claim the one that matches the event.