Texas UM/UIM coverage: optional at minimum.
Authority: Tex. Ins. Code § 1952.101. Stacking treatment: limited. Personal-injury filing deadline still applies: 2 years from the date of injury.
Why UM/UIM coverage matters in Texas
Uninsured-motorist (UM) and underinsured-motorist (UIM) coverage is the most important coverage a Texas driver can carry , and the most overlooked. Roughly one in eight U.S. drivers is uninsured, and many more carry only state-minimum liability that runs out well before catastrophic medical bills are paid. UM/UIM is the policy your own insurer sells you to fill that gap.
UM coverage is offered but not mandated in Texas. Drivers can decline (typically with a written waiver), but the majority of Texas drivers retain the coverage at the undefined statutory offer level or above.
UIM coverage: when the at-fault driver has too little insurance
UIM coverage is the more frequently used cousin of pure UM. In a Texas catastrophic-injury case, UIM is typically the largest single source of recovery , because the at-fault driver's liability policy is exhausted quickly and the injured party's health insurance recoups through subrogation.
Stacking UM/UIM limits in Texas
In Texas, UM stacking rules (limited) determine whether a household with multiple insured vehicles can combine UM limits. Stacking can transform a $50,000 single-vehicle UM policy into a $200,000 four-vehicle policy on the same household , a critical question in serious-injury cases.
Common procedural pitfalls
Two recurring pitfalls in Texas UM/UIM claims: (1) failing to give the carrier prompt notice (every UM policy includes a notice condition; late notice can excuse coverage), and (2) settling with the at-fault liability carrier without first notifying the UM/UIM carrier (which can extinguish subrogation and trigger a coverage forfeiture).
Hit-and-run claims in Texas
A Texas hit-and-run victim turns to their UM coverage when the at-fault driver is unidentified. The policy typically requires either physical contact between the vehicles or independent corroborating evidence (eyewitness testimony, surveillance video) before a phantom-vehicle claim is paid.
The UM/UIM claim process in Texas
Texas claim procedure is deceptively simple on the surface: report the loss, get treated, demand compensation. In practice, every step contains decisions that affect the eventual recovery. Whether to give a recorded statement, which medical providers to use, when to submit the demand, how to value pain and suffering, when to file suit , each is a strategic decision rather than a routine clerical one. The carriers know this; the plaintiff usually does not.
Texas insurance carrier landscape for UM claims
Texas's auto-insurance market is dominated by a familiar set of carriers , State Farm, GEICO, Progressive, Allstate, Liberty Mutual, USAA, and Farmers , plus regional specialists. Texas's Department of Insurance publishes complaint ratios and market-share data annually; carriers with high complaint ratios relative to market share are flagged for additional regulatory scrutiny. For plaintiffs, this matters because complaint-ratio data is admissible bias evidence in extreme bad-faith cases.
Evidence that wins Texas UM/UIM disputes
Evidence preservation matters even more in Texas than in other jurisdictions because of the state's civil procedure rules around spoliation. The first 30 days after the incident are decisive: medical records, photographs of injuries and the scene, witness contact information, and any video footage (residential doorbell cameras, retail security systems, dashcam) all need to be secured before they are overwritten or discarded. Texas courts can impose evidentiary sanctions on parties who lose control of relevant evidence after notice of a potential claim.
Real-world Texas UM/UIM case patterns
Pattern: a Texas pedestrian is struck in a crosswalk by a delivery van whose driver was looking at a phone. The defendant carries the minimum Texas liability policy of $25,000. The plaintiff's UM/UIM coverage on their own policy is $300,000 stacked across three vehicles. The eventual recovery in such cases typically maxes out the defendant's liability and then taps the plaintiff's UIM for the balance, with a coordinated release between the two carriers to avoid coverage disputes.
Mistakes that reduce Texas UM/UIM recovery
The most common mistakes Texas injury plaintiffs make are: (1) giving a recorded statement to the at-fault carrier without counsel, (2) signing medical authorizations that are broader than the case requires, (3) settling the property-damage claim and not realizing it can affect the bodily-injury claim, (4) waiting too long to seek treatment (creating "gap-in-treatment" arguments for the defense), and (5) posting about the incident or their injuries on social media. Each of these can substantially reduce settlement value.
Texas UM/UIM FAQ
Is UM coverage required in Texas?
No. Texas insurers must offer UM coverage but drivers can decline in writing. Most retain coverage at the undefined statutory offer.
What is the difference between UM and UIM in Texas?
UM (uninsured motorist) pays when the at-fault driver has NO insurance. UIM (underinsured motorist) pays when the at-fault driver has SOME insurance but their limits are inadequate to cover your damages. Texas policies typically bundle the two together, though limits and exclusions can differ.
Can I stack UM coverage in Texas?
Texas allows stacking with limitations or offsets. The specific rule (limited) depends on your policy language and recent appellate decisions.
What if the at-fault driver fled the scene?
UM coverage on your own policy applies to hit-and-run / phantom-vehicle scenarios in Texas, typically subject to physical-contact or independent-corroboration requirements set by your policy.
Do I need to notify my insurer before settling with the at-fault driver?
Yes. Almost every Texas UM/UIM policy requires written notice and consent before settling with the at-fault liability carrier. Settling without consent can void UM/UIM coverage by extinguishing the carrier\'s subrogation rights.
How long do I have to file a UM/UIM claim in Texas?
The policy itself sets the notice deadline (often "as soon as practicable" or 30-180 days). The underlying personal-injury SOL is 2 years under Tex. Civ. Prac. & Rem. Code § 16.003, and most courts treat UM claims as contractual , meaning the contractual limitations period in the policy may also apply.
Related Texas topics
Sources
- Texas UM/UIM statute: Tex. Ins. Code § 1952.101.
- Auto-insurance framework: Tex. Transp. Code § 601.072.
- Personal-injury SOL: Tex. Civ. Prac. & Rem. Code § 16.003.
- Industry data: Insurance Information Institute uninsured-driver statistics.
Last verified against primary sources on 2026-05-16.