Updated April 2026
What Is Uninsured Motorist Coverage Insurance?
Uninsured Motorist Coverage (UM) has two components: Uninsured Motorist Bodily Injury (UMBI) covers medical bills, lost wages, and pain and suffering when an at-fault driver has no insurance, and Uninsured Motorist Property Damage (UMPD) covers vehicle repair costs in the same scenario. It also kicks in when you're hit by a driver who flees the scene (hit-and-run) and cannot be identified. The coverage applies up to your policy limits regardless of what the at-fault driver should have carried, meaning if you select $100,000/$300,000 UMBI limits, that's your maximum protection even if the other driver had zero coverage.
- You're stopped at a red light when another driver rear-ends you and flees without stopping. You suffer whiplash requiring $8,500 in medical treatment and miss two weeks of work, losing $2,400 in wages. Your Uninsured Motorist Bodily Injury coverage pays the $10,900 in medical bills and lost income up to your policy limits. Without UM coverage, you'd file a claim through your health insurance (subject to deductibles and copays) and have no reimbursement for lost wages unless you successfully locate and sue the driver.
- An uninsured driver runs a stop sign and T-bones your vehicle, causing $14,000 in damage and $22,000 in medical expenses for you and your passenger. Your $25,000 UMBI coverage pays the medical costs up to the limit, and if you carry UMPD with a $3,500 limit, it covers vehicle damage minus any deductible (typically $250–$500). If you don't have collision coverage, UMPD may be your only way to recover repair costs without suing the uninsured driver personally. With collision coverage, you'd typically use that instead since UMPD limits are often lower and some states don't offer UMPD at all.
- A driver whose license was suspended for DUI hits you from behind, causing $6,200 in vehicle damage and $3,800 in chiropractic bills. The driver's insurance was cancelled due to the suspension, leaving them uninsured. Your UMBI coverage handles your medical expenses, and UMPD or collision coverage pays for vehicle repairs. This scenario is increasingly common for drivers researching coverage after their own record issues—if your license was previously suspended and you're rebuilding your insurance profile, UM coverage protects you from others in similar situations who are driving illegally without coverage.
Who Needs Uninsured Motorist Coverage Insurance?
Uninsured Motorist Coverage is critical for drivers in states with high uninsured motorist rates (above 15%), anyone without robust health insurance or substantial emergency savings to cover medical bills and lost wages, and drivers who can't afford to sue an uninsured driver and wait years for potential recovery. It's especially valuable for drivers rebuilding their record after a suspension, DUI, or major violation—you know firsthand that some drivers operate without proper coverage, and UM protects you from becoming a victim of that behavior.
Check your state's uninsured motorist rate and compare UM premium costs to your health insurance deductible and out-of-pocket maximum. If UM costs less than $15/month and your health insurance has a deductible above $2,000 or doesn't cover lost wages, buy it—the math strongly favors coverage. Drivers with recent violations, SR-22 requirements, or gaps in coverage history should prioritize UM since you're statistically more likely to encounter other high-risk or uninsured drivers in your area.
How Much Does Uninsured Motorist Coverage Insurance Cost?
Uninsured Motorist Coverage typically adds $5 to $20 per month ($60–$240 annually) to your premium, though costs vary significantly based on your state and selected limits.
- Your state's uninsured driver rate—states like Florida, Mississippi, and New Mexico with 20%+ uninsured rates often see higher UM premiums due to elevated risk.
- Coverage limits you select—choosing $100,000/$300,000 UMBI costs more than minimum 25/50 limits, but the incremental cost is typically modest compared to liability increases.
- Whether you add Underinsured Motorist Coverage—bundling UIM with UM usually adds $3–$10/month depending on limits.
- Your driving record and location—drivers with DUI convictions or accidents may pay 15–40% more for UM coverage since insurers view them as higher risk for all claim types.
- Whether your state mandates UM coverage—required coverage states often have standardized pricing that's lower than optional-coverage states where only higher-risk drivers purchase it.
- Stacking options—some states allow you to stack UM limits across multiple vehicles on your policy, which can double or triple your protection but increases premiums by 30–60%.