Detention Pay ROI — Real vs Advertised
"$20/hour after 2 free hours" looks like $10,000+/year at 5 loads/week. After detention frequency, free-window carve-out, and the driver share of collected billing, the real number is usually 25-40% of that. Run honest math on your carrier's detention policy before signing.
Run the honest math
Typical OTR: 4–6. Regional: 5–10. Local: 8–20.
Fraction 0.0–1.0. OOIDA: 35–55% OTR dry-van, 50-70% reefer, 10-25% well-run private fleets. Review your last 30 days of trip sheets.
Industry standard 2.0. Some shippers 1.0, some 3.0.
Beyond the free window. Typical 2.0. Bad docks 4.0+.
Common $15–$25. Private fleets sometimes $40–$50.
Company driver pass-through + collection rate. Typical 0.60–0.85. Ask for 90-day detention-collected rate in writing.
FMCSA max is 60 in 7 days. 60 is a legal-ceiling default.
- Detention events / year
- Detention hours / year
- Pay per detention event
- Gross billed detention
- Effective $/hour across on-duty time
- Real vs advertised-naïve math
How detention actually works in a settlement
Every freight broker contract has a detention clause. The standard pattern: the shipper (consignee) gets a free window — typically 2 hours for loading or unloading — after which the carrier can bill detention at a stated hourly rate against the shipper. That bill is what the driver sees as "$20/hour detention pay after 2 free hours" on the recruiting page.
Three frictions sit between the stated rate and the driver's pocket:
Friction 1 — Detention only pays past the free window
A 4-hour stop at a produce dock that guarantees 2 free hours generates 2 billable detention hours, not 4. If the shipper only gives 1 free hour and the stop runs 3 hours, you get 2 billable hours. Many drivers anchor on "I was there 4 hours so I'm owed 4 × $20 = $80" when the real bill is 2 × $20 = $40 — before the next two frictions.
Friction 2 — Not every load detains
OOIDA Foundation detention surveys and ATRI's "Economic Costs of Driver Detention" study both put OTR dry-van detention frequency at 35-55% of loads past the free window — meaning roughly half of all stops never trigger detention billing at all, because the shipper unloads quickly enough. Reefer and produce lanes run higher (peak-season detention can hit 60-70%); well-run private-fleet dedicated lanes run lower (10-25%). Your actual rate is lane-specific. The most honest input is your own trip-sheet history from the last 30-60 days.
Friction 3 — Driver share ≠ billed amount
Even when the carrier bills detention to the shipper, the driver's take is gated by two things:
- Pass-through percentage. Company drivers on most reputable carriers get 100% of collected detention. Owner-ops under a carrier authority typically 80-100%. Some lease-purchase programs retain part of detention against a maintenance escrow. Some carriers pay detention as a flat per-stop fee ($50/stop after 2 hours, for example) regardless of dwell time, which caps the benefit on long delays.
- Collection rate. Even with a 100% driver-share policy, the carrier has to actually collect from the shipper for the driver to see it. Shipper disputes, missing POD paperwork, missed billing windows, or carriers who simply don't chase detention on small broker spot loads all reduce the effective collection rate to somewhere in the 60-85% range for most carriers.
Multiply those three frictions and the typical real-world detention revenue is 25-40% of what the stated rate would suggest. A carrier advertising $20/hour who also runs strict detention tracking and collects reliably might hit 50-65%. A carrier with a $25/hour headline but no collection discipline can fall to 15-20%.
How to use this calculator to negotiate
- Ask the recruiter for the last 90 days of collected-detention per driver. Not the advertised rate — the actual collected revenue averaged across drivers at your target experience tier. If they can't or won't provide it, plug in conservative numbers (40% frequency × 70% driver share) and see the real number.
- Ask how detention is tracked. Automatic via ELD + auto-invoice is the only reliable system. If the driver has to request detention on each load, assume 30-40% collection (drivers forget, get busy, skip the friction).
- Ask about flat detention. Some carriers pay $50/stop after 2 hours regardless of dwell time. For short detentions that's generous; for bad 6-hour dwells it's a cap that under-pays you by 60%. Model both scenarios.
- Model your specific lanes. If you know you'll run mostly reefer or produce, use 55-65% detention frequency. If dedicated Walmart private fleet, use 15-25%.
Our assumptions and sources
| Assumption | Default | Source |
|---|---|---|
| Free hours per load | 2.0 | Industry-standard shipper contract term |
| Detention frequency (OTR dry van) | 40% | OOIDA Foundation detention surveys; ATRI "Economic Costs of Driver Detention" |
| Avg detention hours per event | 2.0 | OOIDA / ATRI detention duration benchmarks (beyond free window) |
| Stated carrier rate | $20/hr | Typical carrier recruiting-page midpoint; private fleets often higher |
| Driver share of billed detention | 75% | Accounts for carrier pass-through % × realistic collection rate |
| Loads per week | 5.0 | Typical OTR; regional + local run higher load counts |
| On-duty hours / week | 60 | FMCSA HOS 60/7 or 70/8 legal ceiling |
Frequently asked questions
Why is my friend's detention pay so much higher than mine?
Your friend probably runs lanes with high-detention shippers (reefer/produce), at a carrier with automatic ELD-based tracking, with a 100% driver pass-through policy. You might run dedicated private-fleet lanes with well-run docks (low frequency), at a carrier with driver-request detention tracking (low collection), with a carrier that retains 30% as a "collection fee" (low share). Three levers with three different answers — 6x difference in annual detention pay between drivers at "the same CPM."
Is flat detention ($50/stop) better or worse than hourly?
Flat detention is better for short detentions (you get $50 for 2 hrs 15 min past free — $22/hr equivalent). Worse for long bad dwells (you get $50 for 6 hrs past free — $8/hr equivalent, if you would have been billed $120 hourly). Carriers prefer flat detention because it caps their dispute surface with shippers. Drivers should ask what the cap is and whether there's an escalation tier.
Can I bill detention directly if I'm an owner-op?
Under your own authority, yes — detention is part of the rate confirmation you negotiate with the broker or shipper. Under a carrier's authority, no; detention flows through the carrier's dispatcher and billing department. Owner-ops negotiating spot loads should make detention terms explicit in writing on every rate con, not assume the broker's default.
Does detention count as a "bonus" for tax purposes?
No. Detention is ordinary W-2 wages for company drivers (or Schedule C revenue for owner-ops). It's regular income, not a bonus, not a per-diem, not a reimbursement. It does add to your Social Security earnings base.
Does detention reduce my paid miles?
No — detention hours are off-duty or on-duty-not-driving, not driving time. Detention payment is independent of mileage pay. The indirect cost: long detentions eat into your 14-hour driving window, which can force a shorter next run or a restart you wouldn't otherwise take. That indirect cost isn't modeled here; it shows up in your weekly paid miles being lower than you'd otherwise hit.
Should I avoid reefer because of detention?
Detention on reefer/produce is real, but so is the pay premium — reefer drivers often earn $0.05-$0.10 per mile more than dry van at the same carrier, and the specialty pay usually more than compensates for the extra detention time. Run this calculator against your reefer CPM differential to check that specific tradeoff for your lanes.