How to Document Detention and Accessorial Charges So They Actually Get Paid

Detention happened. Everybody on the load knows it happened. The driver sat at the dock for three hours past the appointment, the carrier wants the accessorial, and your shipper is going to ask you to prove it. Six weeks later that charge is still sitting in dispute, your carrier is annoyed, and you are reconstructing a timeline from memory and a couple of text messages. The detention was real. The money still did not get paid. That gap, between a charge that is owed and a charge that is collectible, is where brokers quietly lose margin every month.

The charge is not the problem. The proof is. An accessorial only converts to cash when the timestamps behind it are clean, complete, and hard to argue with. That is exactly what timestamped tracking and geofence proof from LBOARD is built to capture, automatically, on every load, so the documentation exists before anyone thinks to dispute the bill. This piece walks through how to build a detention record that holds up, from the moment the truck approaches the gate to the moment the charge clears.

Why provable detention is a cash-flow problem, not a paperwork problem

Most brokers treat accessorials as a billing afterthought. The load delivered, the freight charge is clean, and detention is a footnote you sort out later. But “later” is where these charges die. Memory fades, the carrier’s account is in a hurry, and your shipper’s AP team will reject anything they cannot reconcile against a documented arrival and departure. An unprovable detention claim has only two endings: you eat it to keep the carrier happy, or you decline it and strain the relationship. Both come out of the same pocket.

Detention is also not rare. Drivers reported being detained in nearly four of every ten stops in 2023, according to the American Transportation Research Institute, which pegged the direct cost to the industry at $3.6 billion that year. If detention touches that many of your loads and you can only prove a fraction of it, you are not running an accessorial program, you are running a coin flip.

We made the broader case for visibility economics in our practical guide to load tracking for brokers; detention is the line item where that math gets most concrete.

A detention charge you cannot prove is not a charge. It is a hope, and AP departments do not pay hopes.

What a payable detention record actually needs

Before the workflow, get clear on what “documented” means to the party writing the check. A detention claim that gets paid almost always carries the same elements. Miss one and you have handed the disputing party a reason to deny.

• A verifiable arrival timestamp, ideally tied to a location, not just a driver’s phone call saying “I’m here.”
• A verifiable departure timestamp, so the dwell window has a hard start and a hard end.
• The agreed free-time terms, usually two hours, written into the rate confirmation before the load moves.
• The detention rate per hour or per fraction, also locked in the rate con, not negotiated after the fact.
• A clean record that the dwell exceeded free time, expressed as a number anyone can recompute.
• Supporting context for edge cases: appointment time, facility, and any communication trail.

Notice what is doing the heavy lifting here: timestamps you did not have to ask anyone to remember. When arrival and departure are captured automatically by the load itself, the rest of the claim is arithmetic. When they are not, every line above becomes a negotiation.

The documentation workflow, step by step

Here is the sequence that turns detention from a recurring write-off into a billable, payable charge. The goal is to build the record while the load is moving, not to reconstruct it after the dispute lands.

1. Set the accessorial terms in the rate confirmation. Before the truck rolls, the rate con should state free time and the detention rate explicitly. No free-time clause means no clean threshold, and a charge with no agreed threshold is the easiest kind to deny. This is paperwork you do once, up front, and never have to argue.
2. Capture a tracked arrival timestamp. The moment the truck reaches the facility, you want a timestamp tied to the location, not a voice call you logged by hand. A geofence around the pickup or delivery records the arrival the instant the truck enters the radius, with no one having to remember to mark it.
3. Let the geofence start the dwell clock. Free time should begin counting from a recorded event, not an estimate. When the arrival is a geofence entry, the dwell window starts on a fact everyone can see, which removes the most common point of dispute: when the clock actually started.
4. Capture the tracked departure timestamp. Just as important as arrival, and just as easy to lose. The geofence exit records when the truck actually left, closing the dwell window with a second hard data point instead of a guess.
5. Calculate dwell against agreed free time. Departure minus arrival, minus the free time from the rate con, equals billable detention. Because every input is a recorded timestamp or a signed term, the number is reproducible by anyone who looks at it.
6. Attach the proof to the invoice. Bill the accessorial with the timestamped dwell record attached, not as a standalone line item the shipper has to take on faith. A charge that arrives with its own evidence gets approved faster and disputed less.
7. Reconcile and follow up on the same record. If the charge is questioned, you are not reopening a memory, you are pointing back at arrival and departure events that have not changed. The conversation is short because the facts are fixed.

The difference between detention you eat and detention you bill is almost never the charge. It is whether the clock was running on something you can show, or something you remember.

Where geofence and timestamp data change the outcome

The reason this workflow holds is that it removes human memory from the chain of evidence. A check call that says “driver arrived around 8” is not proof, it is a recollection, and the disputing party knows it. A geofence entry logged at 8:04 with a location attached is a different kind of object: it is a record, and records are what AP departments reconcile against.

This is the same labor leak we covered in the hidden cost of check calls, viewed from the billing side. Every check call your dispatcher makes to confirm a status is a manual attempt to do what a geofence does automatically and more credibly. When arrival and departure are captured by the load itself, your team stops dialing for timestamps and starts billing with them.

The practical effect on cash flow is direct. Charges that used to sit in dispute for weeks get approved on the first pass because the proof rides along with the invoice. Charges you used to write off rather than fight become routine collections. And the carrier relationship improves, because you are no longer asking them to accept “we could not prove it, so we are not paying it” on detention they genuinely incurred.

Common mistakes that get accessorials denied

Even brokers who capture good data lose charges to a handful of avoidable errors. Most of them happen before the load ever moves.

• No free-time clause in the rate con, so there is no agreed line the dwell has to cross.
• Relying on the driver’s word for arrival and departure instead of a recorded event.
• Logging only arrival and forgetting departure, which leaves the dwell window open-ended.
• Billing detention as a bare line item with no supporting timestamps attached.
• Waiting weeks to submit, by which point the trail has gone cold and AP has every reason to defer.
• Inconsistent terms across loads, so each accessorial becomes a fresh negotiation instead of a policy.

None of these are about effort. They are about capturing the right record at the right moment, automatically, so the proof exists by default rather than on request.

Where LBOARD fits

LBOARD captures the two timestamps that decide every detention claim: a geofenced arrival and a geofenced departure, logged automatically on the load without anyone making a call or marking a time. That gives you a clean dwell window, tied to location, ready to attach to the invoice. It is not an enterprise TMS and does not pretend to be. It does the focused thing a broker actually needs to get accessorials paid, which is hard, timestamped proof of when the truck arrived and when it left, on transparent pay-as-you-go pricing with the first loads free and no contract.

Turn your next disputed charge into a paid one

Detention is going to keep happening on a meaningful share of your loads. The only variable you control is whether you can prove it when the bill comes due. Set your free-time terms in the rate con, let the load capture its own arrival and departure, and bill the accessorial with the timestamps attached. The charge that used to be a write-off becomes a routine collection, and the carrier who used to absorb it gets paid for the time they actually sat.

Stop negotiating detention from memory. Capture timestamped arrival and departure proof with LBOARD, turn it on this week, and make your next accessorial a documented, payable charge instead of a dispute you are bound to lose.

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