Updated April 2026
What Is Uninsured Motorist Coverage Insurance?
Uninsured Motorist Coverage pays for your teen's medical bills, lost wages, pain and suffering, and vehicle damage when an at-fault driver has no insurance or insufficient coverage to pay the claim. It also covers hit-and-run accidents where the other driver can't be identified. For parents, this means if your 17-year-old is rear-ended by an uninsured driver and suffers a concussion and whiplash, UM coverage pays their $8,000 in medical bills and repairs the $4,500 in damage to your car—costs you'd otherwise pay out-of-pocket or through your own collision and medical payments coverage. The coverage follows your policy, so it protects your teen whether they're driving the family car or their own vehicle listed on your policy.
- Your 18-year-old has a green light and enters an intersection when a driver without insurance runs the red light and T-bones them. Your teen suffers a broken arm requiring surgery ($22,000 in medical bills), misses 6 weeks of their part-time job ($2,400 in lost wages), and the car sustains $9,500 in damage. Your $100,000 Uninsured Motorist Bodily Injury coverage pays the $24,400 in medical and wage costs, while your $25,000 Uninsured Motorist Property Damage coverage (or collision, depending on your state) pays the vehicle repair minus your deductible.
- Your 16-year-old parks at their high school, and during the day another student (or unknown driver) sidesipes the car and leaves without a note. The damage totals $3,200. In states with UMPD coverage, this pays the repair costs minus your deductible. Without UMPD or in states where UM only covers bodily injury, you'd file under collision coverage and pay that deductible instead—typically higher than UMPD deductibles.
- Your 19-year-old is stopped in traffic when a distracted driver rear-ends them at 45 mph. The at-fault driver has only the state minimum $25,000 in liability coverage, but your teen's injuries (concussion, back injury, emergency room visit, physical therapy) total $42,000. The at-fault driver's insurance pays their $25,000 limit. Your Underinsured Motorist Coverage (bundled with UM in most policies) pays the remaining $17,000, protecting your teen from a $17,000 out-of-pocket bill or lawsuit against the other driver who likely has no assets.
Who Needs Uninsured Motorist Coverage Insurance?
Parents adding any teen driver should carry Uninsured Motorist Coverage at limits matching their liability coverage—inexperienced drivers are more likely to be involved in accidents, including those caused by uninsured motorists. This is especially critical if your teen drives in high-traffic areas, commutes to school or work, or lives in states with uninsured driver rates above 10%. Families with teens driving newer vehicles or those with medical costs not fully covered by health insurance need UM coverage to avoid catastrophic out-of-pocket expenses from someone else's failure to insure.
Match your Uninsured Motorist limits to your liability limits—if you carry $100,000/$300,000 liability, carry the same in UM to fully protect your teen from uninsured drivers. Check your state's uninsured driver rate: above 15% means UM coverage is essential, not optional. Compare your collision deductible to potential UMPD deductibles in your state—if UMPD has a $250 deductible versus $1,000 for collision, the UMPD addition pays for itself in a single hit-and-run incident.
How Much Does Uninsured Motorist Coverage Insurance Cost?
Adding Uninsured Motorist Coverage to a policy with a teen driver typically costs $8–$15/month for $50,000/$100,000 bodily injury limits, compared to $5–$10/month on an adult-only policy—the increase reflects the teen's higher overall risk profile.
- Teen driver's age and experience level — 16-year-olds pay more than 20-year-olds for the same UM limits
- Coverage limits selected — $25,000/$50,000 costs less than $100,000/$300,000, but higher limits are recommended for teen drivers
- State requirements — mandatory UM states often have lower rates due to larger insurance pools
- Uninsured driver rate in your state — New Mexico (25.5% uninsured) has higher UM premiums than Massachusetts (3.5% uninsured)
- Whether UMPD is separate or included — some states bundle property damage with bodily injury, others charge separately
- Stacking vs. non-stacking — stacked coverage (combining limits across multiple vehicles) costs 15–30% more but provides higher protection for families with teen drivers on multi-car policies