Updated June 2026
What Is Uninsured Motorist Coverage Insurance?
Uninsured Motorist Coverage pays when the at-fault driver has no liability insurance or can't be identified after a hit-and-run. It covers your medical expenses, lost wages, and in some states your vehicle damage, up to your policy limits. Ohio requires insurers to offer UM coverage matching your liability limits, but you can reject it by signing a waiver. Once declined, you absorb the full cost if an uninsured driver injures you.
- You're rear-ended at a stoplight and the other driver flees. You have $8,000 in medical bills and miss three weeks of work. If you carry $25,000 UM coverage, it pays the medical costs and wage loss up to the limit. Without UM, you file through your health insurance and pay any deductible and co-pays out of pocket, and wage loss goes uncompensated unless you sue and locate the driver.
- An uninsured driver runs a red light and totals your car. You have $3,500 in medical bills. If you carry UM bodily injury, it covers the medical costs. Your collision coverage pays for the vehicle if you carry it; UM bodily injury in Ohio does not cover property damage unless you added the optional UMPD endorsement. Without UM, you pay the medical bills yourself and pursue the uninsured driver in small claims court, a process that often yields nothing.
- A driver with Ohio's minimum $25,000 liability causes an accident that leaves you with $60,000 in medical bills. Their liability pays the first $25,000. If you carry $100,000 Underinsured Motorist coverage, it pays the remaining $35,000. Without UIM, you absorb the $35,000 shortfall or file a lawsuit against a driver who likely has no assets.
Who Needs Uninsured Motorist Coverage Insurance?
Retirees who no longer have employer health coverage or carry high-deductible Medicare Supplement plans should keep UM coverage. Medicare Part B covers accident injuries but takes months to process claims and doesn't cover wage loss or non-medical damages. UM pays immediately and covers gaps Medicare won't touch. If you drive in areas with high uninsured rates — typically urban counties or near state borders — the likelihood of an uninsured claim justifies the cost even on a tight budget.
Compare your UM annual cost to your health insurance deductible and out-of-pocket maximum. If UM costs $120 per year and your Medicare Supplement deductible is $2,000, one uninsured claim pays for a decade of premiums. Check your county's uninsured motorist rate through the Ohio Department of Insurance — if it's above 10%, keep UM. If it's below 5% and you carry strong health coverage, declining saves money with acceptable risk.
How Much Does Uninsured Motorist Coverage Insurance Cost?
Uninsured Motorist Coverage typically adds $60 to $180 annually to an Ohio retiree's premium for minimum limits, or $8 to $18 per month.
- Your UM limits — matching your liability limits costs more than minimum coverage, but the gap between $25,000 and $100,000 UM often adds only $40 to $80 per year.
- Whether you add Underinsured Motorist (UIM) coverage — bundled UM/UIM costs 15% to 30% more than UM alone, but protects against drivers carrying only state minimums.
- Your ZIP code's uninsured driver rate — counties with higher uninsured motorist claims see higher UM premiums, with urban Ohio ZIP codes typically 20% to 40% above rural rates.
- Stacking vs. non-stacking — if you insure multiple vehicles, stacked UM combines the limits across all cars and costs 30% to 60% more than non-stacked, which applies per-accident regardless of vehicle count.