Ohio car insurance: low average costs, optional uninsured motorist coverage and strict proof rules

Ohio's uninsured driver gap and the UM/UIM choice

Some states require uninsured motorist coverage. Ohio does not: insurers may offer it, and you can take it, choose a lower amount or turn it down. That leaves the decision with you in a state where the Insurance Research Council's estimate of uninsured drivers is above the national average.

Here is how the Ohio Department of Insurance describes the pieces:

• Uninsured motorist (UM) stands in for the liability coverage an at-fault driver did not have, paying for injuries to you and your passengers.
• Underinsured motorist (UIM) pays when the at-fault driver's insurance is not enough to cover your injuries.
• Limits: insurers will not sell you more UM coverage than your own liability limit, so raising liability limits also raises how much UM you can buy.
• Uninsured motorist property damage (UMPD) pays for damage to your car from an uninsured driver. The department notes it overlaps with collision coverage, so drivers who already carry collision may not need it.
• Who is covered: some policies do not protect relatives who live elsewhere or passengers who are not family; they may have to rely on their own policies.

If you decline UM/UIM, your own collision and health coverage become the main backstop after a crash with an uninsured driver. Our uninsured motorist guide walks through the trade-offs.

What Ohio's minimum coverage does and does not pay

A minimum-only policy pays nothing toward your own car or your own injuries. Whether to add full coverage depends on your car's value and your savings.

Ohio also allows alternatives to an insurance policy: a $30,000 cash deposit with the state treasurer, a surety bond for the same amount or a certificate of bond backed by real estate. Large fleet owners can self-insure.

Proof of financial responsibility and the penalties

Ohio's financial responsibility law makes it illegal to drive, or let someone else drive your car, without insurance or another accepted form of proof. You must show your insurance ID card when a police officer stops you, when you are cited or after a crash, and the Bureau of Motor Vehicles can also ask for proof at random.

An SR-22 is a certificate your insurer files to show the BMV you are covered. Our SR-22 guide explains how it works and what it can do to your premium.

Fault and shared blame in Ohio

Ohio is an at-fault state that uses comparative negligence: fault can be split between drivers, and your share affects how much you can collect or owe. The Department of Insurance notes three points that help in a dispute:

1. No "pattern" settlements. Insurers may not routinely assign the same fault percentage to every driver they insure.
2. Ask how fault was decided. If you disagree with the percentage, you have the right to ask how it was determined.
3. Adjusters usually make the call. Only a judge or jury makes a legal finding of fault, but in practice the adjuster's assessment usually decides it.

See comparative negligence for how shared-fault rules work.

Average cost of car insurance in Ohio

Ohio's average auto insurance expenditure was $947.22 a year in 2023, below the national $1,281. The combined average premium for liability, collision and comprehensive was $1,037.61, compared with $1,438 nationally. City drivers can see local factors on the Columbus page.

On safety, Ohio's crash death rate was 9.7 per 100,000 people in 2024, below the national 11.5 per 100,000 people. Speeding was a factor in 17% of deaths (national: 29%), while an estimated 33% of drivers killed were at or above the legal alcohol limit, slightly above the national 31%.