Small fleet truck insurance cost drivers

Search for truck insurance cost and you will find price ranges that disagree with each other by tens of thousands of dollars per truck. Most are estimates. Here is what public data shows, what moves your number, and how to read any figure you see.

What public data shows

$0.106 per mile. The average cost of liability and cargo premiums in 2025, up 3.9% from $0.102 in 2024, outpacing inflation by 1.2 points (ATRI, 2026 update).
Small fleets pay more per mile. In specialized sectors, the three smallest fleet size groups improved from 2024 to 2025 but still had the highest average per-mile costs in the industry.
The large-fleet edge is shrinking in truckload. The per-mile gap between fleets of 26 to 100 trucks and fleets of more than 1,000 trucks narrowed from 4.8 cents in 2024 to 3.1 cents in 2025.
Increases are slowing. Renewal premium increases across all commercial auto slowed each quarter of 2025 and in the first quarter of 2026, from 10.4% to 5.8% (Council of Insurance Agents & Brokers, cited by ATRI).
Claim costs drive it. Commercial auto insurers lost money in all but one of the last ten years (AM Best, cited by ATRI). Our Wire tracks new verdicts and claim cost reports.

ATRI's premium figure covers liability and cargo only. Physical damage, general liability and workers' compensation are on top of it.

What sets your price

Each insurer uses its own rules, but these are the items fleet applications ask about:

Factor	Where it shows up
Safety record	Your public inspections, out-of-service rates and crashes, by USDOT number. See our CSA BASICs guide.
Loss history	Loss runs from your past insurers, usually several years.
Drivers	Each driver's age, experience and driving record. See hiring drivers.
Miles and radius	Local, regional or long haul, and where trucks are parked.
Cargo	What you haul and its value. Hazmat and high-value loads change limits and markets.
Equipment	Truck and trailer age and value, for physical damage.
Limits and deductibles	Federal minimums, plus what brokers, shippers and lenders require.
Years in business	Newer authorities have less history for an insurer to read.

The limits you must carry

For-hire property carrier	Minimum liability
Non-hazardous, under 10,001 lbs	$300,000
Non-hazardous, 10,001 lbs or more	$750,000
Certain hazardous materials	$1,000,000
Explosives, poison gas, radioactive	$5,000,000

Source: FMCSA filing chart, 49 CFR 387.303. Federal rules require no cargo coverage for general freight, but many broker contracts do. Read the insurance section of each contract.

Michigan adds no-fault

Trucks registered in Michigan also carry no-fault coverage: personal protection insurance (PIP), property protection and residual liability. For commercial policies, Michigan's PIP medical choices are unlimited, $500,000 or $250,000 per person per accident (DIFS commercial selection form). The PIP premium reductions in the 2019 reform do not apply to commercial policies (DIFS FAQ). More in our Michigan guide.

Telematics and dash cams

A camera alone does not change your price. An insurer's telematics program can. One public example is Progressive Commercial's Snapshot Pro:

A 15% participation discount for the first enrollment term, where available.
Up to 15% more with approved AI dash cams.
All eligible vehicles on the policy must take part.
Later rates are personalized from driving data and can go up as well as down.

Source: Progressive Commercial, Snapshot Pro FAQ, checked Oct 22, 2026. We name it only as a public example. We are not affiliated with or appointed by Progressive. Other insurers run their own programs with different rules. Ask before you buy hardware.

How to read a per-truck number

Per-mile data turns into a per-truck figure only when you add your own miles. As arithmetic only: a truck running 100,000 miles a year at ATRI's 2025 average of $0.106 per mile would be about $10,600 in liability and cargo premium. That is an illustration of an average, not a price for any fleet. Your record, drivers and cargo can put you well above or below it.

Before you compare any number, look at your public record the way an underwriter will. DOTView reads it by USDOT number.

FAQ

How much does insurance cost for a 5 truck fleet?

There is no fixed price. Public ranges online vary widely because each insurer prices your record, drivers, miles, cargo and limits. One public benchmark is ATRI's: $0.106 per mile for liability and cargo premiums in 2025, averaged across carriers of all sizes.

Do small fleets pay more per truck than large fleets?

On average, yes. ATRI's 2026 study found the three smallest fleet size groups in specialized sectors still had the highest average per-mile insurance costs in 2025, even after an improvement from 2024.

Why do premiums rise when crash rates fall?

Claim costs are rising faster than crashes are falling. ATRI reports heavy truck injury and fatal crash rates fell from their 2019 highs, while the most expensive half of trucking litigation awards rose about 5.7% a year, and commercial auto insurers lost money in all but one of the last ten years.

What is the minimum liability for a for-hire truck?

$750,000 for non-hazardous property in vehicles of 10,001 pounds or more, $1,000,000 for certain hazardous materials and $5,000,000 for explosives, poison gas or radioactive materials (49 CFR 387.303). Many brokers ask for more by contract.

Do dash cams lower truck insurance?

Only through an insurer's program. As of Oct 22, 2026, Progressive's Snapshot Pro, for example, gives a 15% first-term participation discount and up to 15% more with approved AI dash cams, and later rates can go up or down with driving data.

This guide is general information, not legal advice or an offer of insurance. Rules and programs change, so check the sources below. Helm Partners is a trucking-only insurance agency being formed in Michigan. Our Michigan license is pending. We do not quote or sell insurance until licensed.

What drives truck insurance cost for a small fleet