Semi Truck Insurance Cost: Average Rates & What Drives Them

Semi truck insurance is a bundle of policies, not one. Primary liability, physical damage on the tractor, cargo coverage and non-trucking liability each carry their own premium. Published averages usually cover only some of these, which is the main reason sources disagree.

The monthly figure you see quoted depends on what is in it. MoneyGeek's average assumes a liability limit of 1 million dollars. Other sources price a full package for an owner-operator running under their own authority, which is a larger bill. Knowing which one a number describes makes it easier to compare.

MoneyGeek lists semi-trucks at $639/mo on average, and semi-trucks hauling hazardous materials at $1,181/mo. Other truck types fall on either side: flatbeds average $569/mo and tankers $709/mo.

MoneyGeek also shows these averages as yearly totals. A standard semi averages $7,672/yr, and a hazmat semi $14,169/yr.

FreightWaves Checkpoint prices the cost by how the truck operates. An owner-operator with their own authority carries primary liability and usually physical damage. A driver leased to a carrier may be covered by the carrier for primary liability, so the bill is lower. The FreightWaves page shows no publication date, so treat its ranges as general guidance.

The physical damage line is based on a tractor valued at 120,000 dollars. A cheaper or older truck would generally cost less to cover.

The sources below describe different things. MoneyGeek averages by truck type at a fixed liability limit. Its second page looks at the cheapest insurer, Progressive Commercial, for a non-hazmat semi. Progressive Commercial reports its own average for for-hire transport trucks, which are usually heavy freight trucks like semis, and the figure comes from 2025 new policies. FreightWaves quotes a monthly range for a full owner-operator package.

Each of these has a different scope, so the gap between them is not a contradiction. A package that includes cargo and physical damage will exceed a liability-only average. Insurers that set their own rates also see different customers, which can pull their averages apart.

• Authority status. Own authority usually costs more than leasing to a carrier.
• Cargo. MoneyGeek's hazmat figure is far above the standard semi average.
• State and garaging location. Rates vary widely by state, and urban garaging tends to cost more.
• Driver record and experience. A clean motor vehicle record helps, and new ventures often pay more.
• Truck value. Physical damage premiums follow the stated value of the tractor.
• Coverage limits and deductibles. A higher liability limit raises the premium, and a higher deductible can lower the physical damage cost.

When you compare quotes, ask each agent to price the same limits. Primary liability, physical damage, motor truck cargo and non-trucking liability can each be quoted separately. Confirm what your motor carrier or broker contracts require, since cargo and liability minimums often come from those contracts. Ask whether the quote is for a new authority or an established one.

A licensed commercial trucking agent can price the whole package against your lanes and equipment. The averages here are reference points, not quotes.