Updated June 2026
What Is Uninsured Motorist Coverage Insurance?
Uninsured Motorist Coverage (UM) activates when another driver causes an accident and either carries no insurance or holds limits too low to cover your damages. Your UM policy pays your medical expenses, lost wages, and in some states vehicle repair costs, up to the limits you purchased. Texas does not require UM coverage, but carriers must offer it when you buy a policy — you can decline in writing. The coverage operates independently of the at-fault driver's situation; your insurer pays your claim, then pursues recovery from the uninsured driver directly.
- You're stopped at a red light in Houston. The driver behind you doesn't brake in time and rear-ends your car at 30 mph. You suffer whiplash requiring $8,000 in medical treatment over three months. The at-fault driver has no insurance. Your UM bodily injury coverage pays the $8,000 in medical bills up to your policy limit. Without UM, you'd pay out-of-pocket or file against your own health insurance, which may not cover accident-related care as primary coverage.
- A driver runs a stop sign in San Antonio and T-bones your vehicle. You require $45,000 in medical care and miss two months of part-time work. The at-fault driver carries Texas minimum liability of $30,000 per person. Their policy pays the $30,000 maximum. Your Underinsured Motorist (UIM) coverage — often bundled with UM — pays the remaining $15,000 if you purchased at least $45,000 in UIM limits. UIM bridges the gap between what the at-fault driver's policy pays and your actual damages.
- Your 2012 sedan is hit in a grocery store parking lot in Austin. The at-fault driver has no insurance. Repair costs total $4,200. Standard UM bodily injury coverage does not pay this — it covers medical costs, not vehicle damage. If you carry collision coverage, it pays the repair minus your deductible, then your insurer pursues the uninsured driver for reimbursement. If you dropped collision because the car is paid off and aging, you absorb the $4,200 loss unless you added UMPD as a separate endorsement, which many retirees skip to reduce premium cost.
Who Needs Uninsured Motorist Coverage Insurance?
Retirees who drive frequently in metro areas with higher uninsured driver rates — Houston, Dallas, San Antonio, Austin, and border regions near the Rio Grande Valley — gain the most value from UM coverage. If you dropped collision coverage on a paid-off older vehicle to reduce premium cost, adding UMPD as part of your UM endorsement restores vehicle damage protection at a fraction of collision premium cost. Retirees on Medicare should know that Medicare does not always cover accident-related injuries as primary insurance; UM bodily injury pays first, reducing out-of-pocket costs and preserving Medicare for non-accident care.
Compare the annual UM premium to the out-of-pocket cost you'd face if hit by an uninsured driver while not at fault. In Texas, where roughly one in seven drivers carries no insurance, ask your carrier for your ZIP code's uninsured motorist rate — if it exceeds 12%, UM bodily injury coverage typically justifies the cost. If you've dropped collision to save money, add UMPD; if you still carry collision, skip UMPD and keep UM bodily injury only. Match your UM limits to your liability limits — purchasing $30,000/$60,000 in liability but $100,000/$300,000 in UM creates an imbalance that raises cost without proportional protection.
How Much Does Uninsured Motorist Coverage Insurance Cost?
Uninsured Motorist Coverage typically adds $8–$18 per month ($96–$216 annually) to a Texas auto policy for a retiree driving a paid-off vehicle with a clean record.
- Your UM limits — purchasing $50,000 per person costs less than $100,000 per person, though many carriers price UM coverage at roughly 5–8% of your total liability premium regardless of the limit selected.
- ZIP code uninsured driver rate — counties with higher percentages of uninsured motorists (Houston's Harris County, Dallas County, parts of the Rio Grande Valley) generate slightly higher UM premiums due to increased claim frequency.
- Whether you bundle UM with Underinsured Motorist (UIM) coverage — most Texas carriers sell UM and UIM as a combined endorsement; splitting them is uncommon and may not reduce cost.
- Your liability limits — because UM pricing often scales as a percentage of liability premium, increasing your liability coverage from state minimums to $100,000/$300,000 raises UM cost proportionally.
- Claim history on UM coverage — filing a UM claim does not universally trigger a rate increase the way an at-fault collision claim does, but some carriers treat any bodily injury claim as a pricing factor at renewal.
- Whether you add Uninsured Motorist Property Damage (UMPD) — UMPD adds another $3–$8/month in Texas and covers vehicle damage from uninsured drivers, filling the gap if you dropped collision coverage on an older paid-off car.