Iowa Truck Accident Lawyer Guide: Laws, Deadlines and Rights

Iowa sits on the I-80 corridor, one of the country's busiest east-west freight routes, and on I-35, I-29, I-380 and I-74. Farm, grain and livestock trucks add to long-haul traffic on rural highways, and winter storms, wind and long distances raise the risk. The Iowa Department of Transportation recorded 351 traffic deaths in 2024, down from 378 in 2023, and the Iowa State Patrol reports that about two-thirds of fatal crashes happen in rural areas. Iowa also changed its trucking liability rules in 2023, so older advice online may be out of date. This guide explains the laws that matter most after a truck crash in Iowa, the evidence to protect and how to choose an Iowa truck accident lawyer. We do not recommend or rank any individual firm.

Iowa truck accident laws at a glance

• Filing deadline: two years for personal injury and wrongful death under Iowa Code § 614.1(2). Property damage claims have a five-year limit.
• Government claims: claims against a city, county or the State follow special notice and filing rules, which can be much shorter than two years.
• Fault rule: modified comparative fault under Iowa Code § 668.3. You are barred if your fault is greater than the combined fault of the defendants, third-party defendants and released persons. Otherwise your damages are reduced by your share.
• Joint liability: under Iowa Code § 668.4, a defendant who is less than 50% at fault is not jointly liable. A defendant who is 50% or more at fault is jointly and severally liable only for economic damages, not for non-economic damages.
• Trucking cap: under Iowa Code § 668.15A, non-economic damages against owners and operators of commercial motor vehicles are capped at $5 million for personal injury or death, adjusted annually for inflation, regardless of the number of defendants or theories.
• Employer liability: under Iowa Code § 668.12A, if the employer meets the statute's conditions, the claim against it is based solely on respondeat superior, and negligent hiring, training or supervision claims are barred.
• Punitive damages: require clear, convincing and satisfactory evidence of willful and wanton disregard for the safety of others. In commercial vehicle cases, the full punitive award goes to the claimant.
• Insurance system: at-fault. Minimum liability limits for ordinary vehicles are $20,000 per person, $40,000 per accident and $15,000 for property damage.

Iowa's $5 million trucking cap: what it means

Senate File 228, signed in 2023, created Iowa Code § 668.15A. It limits non-economic damages against the owner or operator of a commercial motor vehicle, meaning a vehicle that requires a commercial driver's license, to $5 million for personal injury or death. The cap is adjusted yearly for inflation, does not limit economic damages such as medical bills and lost income, and by its terms does not cover vehicles that carry passengers, such as buses. Bills have been introduced in the legislature to repeal the cap, so confirm the current law with an Iowa attorney. For most truck crash victims, the practical effect is that very large non-economic awards are limited, while economic losses remain fully recoverable.

The respondeat superior rule and negligent hiring claims

In many states, an injured person can sue a trucking company both for its driver's negligence and for its own mistakes, such as hiring an unqualified driver, poor training or lax supervision. Under Iowa Code § 668.12A, if the employer stipulates that the driver was acting within the scope of employment and meets the statute's other conditions, the claim is based solely on respondeat superior. That generally prevents separate negligent hiring, training, supervision and entrustment claims, which can limit the evidence a jury hears about a carrier's practices. Ask a lawyer how the rule applies in your case, including whether punitive damages remain available.

The 51% rule and the 50% joint liability rule

If a jury finds you 30% at fault and your damages are $500,000, you can recover $350,000. If it finds you more than 50% at fault, you recover nothing. Separately, Iowa's joint liability rule helps or limits collection depending on the defendants' percentages. A defendant who is 50% or more at fault can be required to pay all of the economic damages even if another defendant cannot pay. A defendant under 50% pays only its own share. In a truck crash, a thorough investigation to identify every responsible party can affect how much is collectible.

Truck crashes in Iowa: what the data shows

The Iowa DOT counted 351 traffic deaths in 2024 and 378 in 2023. These figures cover all vehicle types, not only trucks. For 2026, the Iowa DOT reported 75 deaths through April 14, compared with 60 in the same period of 2025. Nationally, NHTSA counted 5,340 deaths in large-truck crashes in 2024, and about 70% of those killed were in other vehicles. For the latest Iowa figures, check the Iowa DOT facts and statistics page.

Who may be responsible for an Iowa truck crash

• The truck driver, for speeding, distraction, fatigue, impairment or driving too fast for icy conditions.
• The motor carrier, for its employee's actions, and in some cases for its own conduct, subject to the respondeat superior rule above.
• A cargo loader or shipper, if freight, grain or livestock was overloaded or unsecured.
• A repair shop or parts maker, if brakes, tires or other equipment failed.
• A public entity, in some cases involving road design or maintenance, subject to special rules.

Insurance in an Iowa truck crash

Iowa's minimum limits for ordinary vehicles are far below the cost of a serious truck injury. Under federal rules, interstate carriers hauling general freight must carry at least $750,000 in liability coverage, with higher minimums for some hazardous cargo. Many carriers carry more. Your own uninsured and underinsured motorist coverage and medical payments coverage may also apply.

Evidence that matters in an Iowa truck case

• The crash report from the investigating agency, often the Iowa State Patrol, a county sheriff or city police
• Photos and video of the scene, the truck, its markings and the USDOT number, and notes on weather and road surface
• Driver logs and electronic logging data. Hours-of-service rules apply, and carriers generally keep logs for only six months.
• Dash camera footage, engine data and maintenance records
• Medical records and bills from the first day, including amounts paid

You can look up the carrier's inspection and crash history in the FMCSA SAFER system. Ask a lawyer about sending a written preservation request to the carrier quickly.

What compensation may include

• Medical expenses, past and future
• Lost income and reduced earning capacity
• Pain and suffering and loss of enjoyment of life, subject to the trucking cap
• Property damage
• In a fatal crash, funeral costs and wrongful death damages for eligible family members
• In limited cases, punitive damages

No one can promise a result. The outcome depends on your injuries, the evidence, the insurance available and your share of fault.

Steps to take after a truck crash in Iowa

1. Call 911 and get medical care, even if you feel fine.
2. Photograph the scene, the truck and its USDOT number.
3. Do not say you were at fault, and do not guess about speed or distance. Under the 51% rule, every word can be used.
4. Make sure a police report is filed and get the report number.
5. Do not give a recorded statement to the trucking company's insurer without advice.
6. Speak with an Iowa truck accident lawyer early, before evidence is overwritten.

Choosing an Iowa truck accident lawyer

Confirm the lawyer is licensed in Iowa through the Iowa Judicial Branch attorney lookup, ask about commercial trucking experience and how they handle the trucking cap and the respondeat superior rule, and get the fee agreement in writing. Many injury lawyers work on contingency, so there is no fee unless you recover, but percentages and case costs vary. Read our guide on attorney fees and see our other state guides.

This article is general information and is not legal advice. Laws change, so verify with an Iowa attorney. We do not endorse any law firm.

Frequently asked questions