What Driver Turnover Actually Costs Small Trucking Carriers

A 12-truck reefer carrier loses one driver in March. Replaces him in seven weeks. By the time the new hire is running solo, the owner has spent more in cash and lost revenue than he cleared on his three best loads of the quarter. Then the new driver clips a parked car at a receiver in week six. The insurance call is the one that ends the year.

That is the part of turnover the spreadsheets miss.

Most small carrier owners can quote the headline number. The American Trucking Associations has averaged 92.7 percent annualized turnover at large truckload carriers and 77.6 percent at smaller TL carriers from Q3 1996 through Q1 2023, the figure documented in the National Academies of Sciences, Engineering, and Medicine 2024 report on long-distance trucking pay and conditions. ATRI's 2025 Operational Costs of Trucking, working from a different sample of fleets that submitted line-item cost data, pegs industry-average turnover at 48 percent in 2024, up from 46.6 percent in 2023. ATRI's prior cycle showed something more interesting for anyone running under 100 power units: fleets with fewer than 26 trucks ran 27.1 percent turnover in 2023, while fleets above 1,000 trucks ran 72.3 percent. Smaller carriers churn less. They also bleed harder per loss. National Academies + 2

This piece is about that second part.

Why the standard $8K to $15K estimate undersells what small fleets lose

The $8,234 per-hire figure that has circulated in trucking trade press for two decades traces back to a single Upper Great Plains Transportation Institute study from 2001. Adjust for inflation and you land near $12,000 in 2026 dollars. Two more recent fleet-level numbers line up close to that. The National Private Truck Council's 2024 benchmarking survey put driver replacement at roughly $12,000. Conversion Interactive Agency and PDA's 2024 driver market snapshot landed at $12,799. Driveteks + 2

Those numbers are useful as a starting line. They are also built on private-fleet and large-carrier datasets, where a replacement driver typically slides into an existing dedicated lane within a week or two. For a five-to-fifty-truck for-hire operation working spot freight or a small book of contracted lanes, the structure of the loss is different. The cost lines stack differently. The percentage of the fleet that the missing driver represents is bigger. And the consequences of a bad first hire compound in ways a 1,000-truck fleet never feels.

Five real cost lines do most of the damage.

The five cost lines, with the primary sources

1. Recruiting and advertising

Tenstreet's marketing team has published cost-per-application ranges anywhere from $20 per application to $400 per hired driver, depending on the carrier and channel mix, with some carriers paying third-party recruiters $1,000 to $2,000 per hire on top. Conversion Interactive Agency's 2024 carrier data shows AI-assisted lead funnels cutting cost-per-hire by about 27 percent in Q4 2024 versus their prior baseline, which puts a typical fleet's all-in CPH somewhere in the low-to-mid four figures when you count ad spend, recruiter wages, ATS subscriptions like Tenstreet or DriverReach, MVR pulls, drug screen, DOT physical, and orientation pay. TenstreetConversionia

Call it $4,000 to $7,000 for a small carrier doing this honestly. Not the $1,500 you booked in QuickBooks under "Indeed."

2. Training and orientation

The FMCSA Entry-Level Driver Training rule that took effect February 7, 2022 set a floor, not a ceiling. ATA's own guidance on ELDT confirms there is no minimum hour requirement and no mandated curriculum cost, which means small carriers without an in-house training department either send new hires to a registered Training Provider Registry school, run their own informal ride-along, or hand the driver a truck and a route. Each path has a real number behind it. CmslawTrucking Association

Send-out training costs vary widely, but third-party finishing programs and short-haul mentorship rides typically run $3,000 to $6,000 per driver when you include the trainer's pay, the trainee's pay during ride-alongs, and the lost utilization on whatever truck the trainer is driving. HUB International's published guidance on driver finishing programs describes a typical structure of two weeks classroom plus several weeks driver shadowing with a mentor. That structure is what the loss column is paying for whether you do it formally or not. HUB International

3. Lost productivity during ramp-up

ATRI's 2025 report puts average annual truck mileage at 82,677 miles, with trucks operating 268 days per year. Divide that out and a seated truck does roughly 308 miles per operating day. At ATRI's 2024 industry-average revenue assumptions, that is meaningful gross revenue per day not earned while a seat is empty. Heavy Duty TruckingHeavy Duty Trucking

A new hire does not run 308 miles a day in week one. Or week three. The ramp-up curve in trucking is usually six to eight weeks before a green driver is hitting fleet-average miles, longer if they came out of a CDL mill rather than a real apprenticeship. During that window, the truck is either parked, running fewer miles with a trainer in the right seat, or running short loads while the driver learns the dispatch system, the customer base, and the equipment. Conservatively, that is 15 to 25 percent of normal revenue lost across six weeks. On a single truck doing 80,000 miles a year at typical for-hire rates, the lost revenue on that ramp alone clears $7,000 to $9,000.

4. Equipment idle time during the gap

The cost line nobody likes to look at. Between when the old driver leaves and the new driver runs solo, the truck either sits or runs short. ATRI's 2025 numbers show non-fuel marginal costs at $1.779 per mile, including truck and trailer payments at a record $0.39 per mile, insurance at $0.102 per mile, and repair and maintenance at $0.198 per mile. Those costs do not stop because the seat is empty. Truck payment, insurance, parking, and registration all continue. Heavy Duty Trucking + 2

A two-week gap between drivers, which is best-case for a small carrier, parks roughly $4,500 to $5,500 in fixed costs against zero revenue. A six-week gap, which is more realistic when the first hire washes out at day 30, doubles that.

5. The insurance differential, which is the line that quietly ruins small fleets

This is the line that has changed most since the older numbers on the scorecard were written.

ATRI's 2025 Operational Costs report shows insurance premiums hit a record $0.102 per mile in 2024, after a 12.5 percent spike in 2023 and another 3.0 percent rise in 2024. Q1 2025 carriers reported a further 5.8 percent year-over-year increase in premiums. ATRI's prior insurance research found that small fleets pay more than three times as much per mile in premiums as very large fleets, and that 2021-to-2023 trend split the market further: small fleet insurance went from 10.2 to 13.6 cents per mile while large fleets went from 8.2 down to 7.2. AtoB + 3

Layer onto that the practical reality of the new-CDL premium. New-authority and inexperienced-driver coverage in the current market sits in the $8,000 to $18,000 per truck per year range depending on state, radius, and equipment, per published 2026 commercial trucking insurance benchmarks. Reliance Partners' own new venture guidance notes that drivers running under someone else's authority might pay $1,000 to $5,000 per year, while a brand-new authority pays multiples of that. Drivers with under two years of CDL experience are the highest-rated tier on most underwriting tables, with rates typically dropping 20 to 30 percent after the first clean year. Reliance Partners + 2

The math: every time you replace an experienced driver with a new CDL holder, you are paying a premium delta of roughly $3,000 to $6,000 per year per seat, on top of all the other costs. And that is before any first-year accident pushes you into a non-standard market.

If you want to see what this looks like with your own fleet numbers, the cost scorecard at holyrecruit.com/carriers-2 walks through it line by line.

The first 90 days, where most of the loss concentrates

Stay Metrics, now part of Tenstreet, has been the most-cited source on this. Their Stay Days Table found that only 64.9 percent of drivers hired in Q1 2019 made it to 90 days. Roughly 35 percent of new hires were gone in three months, and only about 36.5 percent made it a full year with the carrier they started with. The reasons, ranked by Stay Metrics' analysis of more than 24,000 active drivers across 80 carriers: 93.4 percent of drivers who quit early reported being home less than expected, 77.3 percent had inexperience flagged, 72.3 percent were dissatisfied with their dispatcher, 60.2 percent reported high work-family conflict, and 56.4 percent had low recruiter satisfaction. Heavy Duty Trucking + 2

Read that list again. Almost all of it is fixable in onboarding. Almost none of it is fixed by paying more per mile.

The accident piece compounds the cost. The Virginia Tech Transportation Institute's 2020 study, Commercial Motor Vehicle Driver Risk Based on Age and Driving Experience, analyzed 9,000 truckers and found that drivers with under five years of CDL experience were significantly more likely to be assigned the critical reason for a crash, with the first year on the job being the highest-risk window regardless of the driver's age. The FMCSA's Large Truck Crash Causation Study analysis brief found that drivers with less than five years of truck driving experience had 1.41 times the odds of being assigned the critical reason for a crash compared to more experienced drivers, a 41 percent higher risk. Gray Ritter Graham + 4

So the new hire is the most likely to leave, the most likely to crash, and the most expensive to insure. That is not a coincidence. It is one problem with three faces.

Why a single bad hire is more catastrophic for a 5-truck fleet than a 500-truck fleet

A 500-truck fleet that loses one driver loses 0.2 percent of capacity. The loss is real but absorbed.

A 12-truck fleet that loses one driver loses 8.3 percent of capacity. If that truck was on a dedicated lane with a shipper that has no patience for service failures, the loss is closer to 100 percent of that customer relationship. Three-truck fleets that lose a driver to a contract-running customer often lose the contract along with the driver.

Then there is the insurance cliff. ATRI's prior research documented that one-third of motor carriers cut wages or bonuses to absorb rising insurance costs, and 22 percent cut equipment and technology investment. For a 1,000-truck carrier, an at-fault new-driver accident that adds 15 percent to the renewal premium is a line-item rounding error. For a 10-truck carrier, the same percentage hike on a $90,000 annual premium is $13,500 in cash that has to come from somewhere, usually from owner take-home or driver pay. Heavy Duty Trucking

Lawsuit abuse reform and insurance cost/availability ranked second and third in ATRI's 2025 Top Industry Issues survey of motor carriers, behind only the economy. That ranking is not abstract for small fleets. It is the line that decides whether you renew at the same carrier or get non-renewed and shopped into the surplus market. TruckingresearchTruckingresearch

What actually cuts this

The mechanism that works on the first-90-days problem is straightforward. Stay Metrics' research showed the questions that most predict a driver leaving in 90 days are about whether the recruiter accurately described the work, accurately explained settlement, and accurately explained the kind of runs the driver would make. The fix is not more advertising. It is making sure the picture the driver was sold matches the picture they live. Commercial Carrier JournalTT News

Mentorship-based onboarding is the second mechanism. The U.S. Department of Labor's registered apprenticeship framework, opened to trucking when ATA was approved as a sponsor in March 2022 and expanded under the FMCSA's Safe Driver Apprenticeship Pilot, requires a paired-mentor structure precisely because the data on solo new-CDL drivers is bad. Carriers like Roehl Transport, which runs a DOL-registered two-year apprenticeship, have publicly tied that structure to their retention numbers. HUB International's own guidance on driver finishing programs cites mentorship as the single most consistent reducer of new-driver crash frequency. Trucking AssociationRoehl Transport

Mentorship works because it solves three things at once. It lowers crash risk in the first year, which protects insurance. It catches the home-time and dispatch friction in week two instead of week six, which protects retention. And it gives the new driver a peer who has actually sat in their seat, which is the one thing a recruiter on the phone cannot give them.

Vetted matching is the third mechanism, and the most underused. The mismatch problem Stay Metrics documented, where 93.4 percent of 90-day quitters reported being home less than expected, is almost always a recruiting failure rather than a carrier failure. The driver was sold a job that did not exist. Carriers running tight regional or dedicated lane work that get matched with drivers whose actual home-time needs fit those lanes do not have this problem at the same rate. The selection has to happen before the hire, not after.

Monday morning, what you can actually do

If you run between 3 and 100 power units, the practical move is not to drive recruiting cost down. Recruiting cost is real but recoverable. The move is to drive 90-day attrition down, because everything else follows. A 90-day retention rate of 85 percent instead of 65 percent cuts your annual hires roughly in half on the same headcount, which cuts every cost line described above by something like 40 to 50 percent.

Three things a small carrier can do this week without spending money. Audit your last five hires that did not make 90 days and write down the actual reason each one left, by name, in their own words if you can get it. Compare what your recruiter is telling drivers about home time and run length to what your dispatcher is actually scheduling. Write down what your insurance differential looks like between the experienced driver you lost in March and the new CDL holder you replaced him with, and add that delta to whatever you previously thought turnover was costing you.

Then run those numbers against the fleet you actually operate. The Cost Scorecard at holyrecruit.com/carriers-2 is built around the line items in this article and calibrated to the small-fleet end of the market.

The honest takeaway is that the $8,000-to-$15,000 per turnover number you have heard for fifteen years is roughly half of what it actually costs a small fleet today, and almost none of that gap is recruiting spend. It is insurance differential, idle truck cost, and the compounding probability that the driver you just hired is gone in 90 days. Fix the 90 days and the rest of the math changes.