Detention pay is one of those line items everybody agrees should exist and almost nobody collects cleanly. The driver knows he sat three hours at a distribution center. The dispatcher knows it too, because the check call came in at 6:40 and the driver didn’t get loaded until almost 10. But when the invoice goes out, the detention line gets challenged, discounted, or quietly dropped because nobody can prove the clock.
The gap between “we know it happened” and “we can prove it happened” is where carriers lose real money every week. This post is about closing that gap before the load even delivers, not after the shipper’s AP department starts asking questions.
The short answer: detention gets paid when three timestamps (arrival, start of free time, release) are documented at the dock, the RateCon spells out free time and the hourly rate, and the invoice shows the math with the supporting documents attached on the first submission.
Why Detention Gets Written Off
Most detention and accessorial disputes aren’t about whether the charge is fair. They’re about whether the paperwork backs it up. A shipper’s or broker’s AP team isn’t trying to shortchange you out of spite — they’re following a policy that says “no timestamp, no pay.” If your arrival time lives in a driver’s memory instead of on paper, you’ve already lost the argument.
The same goes for layover, stop-off pay, lumper fees, and reconsignment charges. Every one of these gets contested at a higher rate when the only support is a driver’s word and a dispatcher’s notes. Rate confirmations (RateCons) almost always spell out the detention terms — free time, the hourly rate after that, and sometimes a cap — but the RateCon terms only matter if you can show the clock started and stopped when you say it did.
The Three Timestamps That Matter
For any accessorial claim to hold up, you need three points captured in a way that isn’t just a dispatcher’s memory:
- Arrival at the facility — when the truck physically got to the gate or the yard, not when the driver called it in from the truck stop down the road.
- Start of free time — usually tied to appointment time or arrival, whichever the RateCon specifies. This is where most disputes start, because shippers will argue the clock starts at check-in, not at the gate.
- Departure or load complete — when the trailer was sealed, doors closed, and the driver was released.
If you have all three, on paper, with something other than a verbal check call behind them, you have a collectable claim. If you’re missing one, you’re negotiating from a weaker position no matter how legitimate the delay was.
Building the Habit at the Dock
The fix isn’t complicated, but it has to happen at the dock, not at the office three days later when someone’s building the invoice. Drivers need a simple, repeatable habit: photograph the gate log or check-in slip on arrival, note the time on the BOL or a driver app, and get a signature or timestamp at release. That’s it. No special forms, no extra software beyond what most fleets already have — a phone.
Carriers that collect detention consistently usually aren’t running more sophisticated ops than everyone else. They just made the timestamp habit non-negotiable. Every driver knows: no photo of arrival, no detention claim gets filed. That single rule does more for accessorial collection than any amount of arguing with a broker’s billing department after the fact.
Where the POD Fits In
The proof of delivery does more work than most carriers give it credit for. A clean POD (see the same-day POD collection workflow) with a legible signature, a timestamp, and notes on delay or damage isn’t just closing out the load — it’s the backbone of every accessorial claim tied to that stop. If the POD shows a 2:15 PM signature and the appointment was for 10:00 AM, that gap tells the story before you write a single word of explanation.
That’s why the POD should live on the load, next to the invoice, not in a separate filing system. In Techvia TMS, PODs, BOLs, and rate confirmations are stored per load, and GPS history from the driver’s phone (or a Samsara ELD, on higher plans) gives you an independent record of when the truck arrived and left. No digging through email three weeks later trying to find the paperwork before a shipper’s dispute deadline passes — which matters most when a broker’s AP team asks for backup on a $400 detention line six weeks after the fact.
Making the Case Before the Invoice Goes Out
Once you have the timestamps and the POD, the invoice itself needs to make the case, not just state a number. Instead of a flat “detention: $150,” break it down: arrival time, free time per the RateCon, hours over, rate per hour, total. Example (illustrative numbers): arrived 8:00 AM for an 8:00 appointment, released 1:00 PM, two hours free, $75 per hour after that — 3 billable hours × $75 = $225. Attach the supporting documents — gate photo, BOL notation, POD — right to that invoice line. A broker or shipper reviewing accessorials is far more likely to approve a claim that reads like a short, factual timeline than one that reads like a demand.
Settlements downstream depend on this too. If a driver is getting a cut of detention pay (how detention fits into driver settlements), that number needs to match what actually got invoiced and collected, not what dispatch estimated at the time. Loose accessorial tracking creates drift between what the carrier billed, what got paid, and what the driver was told — and that drift is where trust with your drivers erodes fastest.
Treat Accessorials Like Freight, Not Afterthoughts
The core shift here is attitude as much as process. Detention, layover, and lumper fees aren’t a bonus you hope to get — they’re earned revenue tied to a specific, provable event. Treat the documentation with the same seriousness you’d give a RateCon, and the collection rate follows. Skip it, and you’re negotiating goodwill instead of collecting money you’re owed.
Frequently Asked Questions
How is detention calculated in trucking?
Detention = (time from arrival or appointment until release − free time) × hourly rate, using whichever start point and free-time allowance the RateCon or customer contract specifies. Two hours of free time is a common default, but the contract governs.
When should you bill detention?
On the original invoice, with the timestamps and supporting documents attached. Adding it later invites a dispute, and some customers have short windows for accessorial claims.
What other accessorials should carriers bill?
The common ones are layover, stop-off (extra stop) pay, lumper reimbursement, TONU (truck ordered, not used), driver assist, and reconsignment. Each needs the same thing detention does: agreed terms on the RateCon and proof of the event.
Keep the Proof and the Bill Together
If your fleet or brokerage is still chasing detention paperwork after the load has already delivered, look at how invoicing and documents work together in your current setup. In Techvia TMS, invoices draft automatically when a load delivers and the POD, BOL, and RateCon sit on the same load, so the proof and the billing don’t end up in separate places. It’s $49 a month with unlimited users and trucks, and the 30-day free trial doesn’t require a credit card.