What happens if the at-fault driver has no insurance or not enough insurance?

Discovering that the driver who caused your accident has no insurance — or carries only minimal coverage — is a frustrating but surprisingly common situation. Roughly one in eight drivers on U.S. roads is uninsured, and millions more carry only the bare state-minimum limits that fall far short of covering a serious injury. Knowing your options before an accident happens is the best protection. **Uninsured Motorist (UM) Coverage** Your first line of defense is your own auto policy's uninsured motorist (UM) coverage. If you purchased UM, your insurer steps into the shoes of the at-fault driver and pays damages — including medical bills, lost wages, and pain and suffering — up to your policy limit. UM is mandatory in many states and strongly advisable everywhere. File the claim promptly; most policies require notice within 30 days of the accident. **Underinsured Motorist (UIM) Coverage** When the at-fault driver has insurance but their limits are too low, underinsured motorist (UIM) coverage fills the gap. For example, if the at-fault driver carries a $25,000 limit but your medical bills alone reach $80,000, your UIM policy can pay the difference up to your own limit. UIM claims still require proving the other driver's fault and documenting your damages in full. **Personal Injury Protection (PIP) and MedPay** In no-fault states, personal injury protection (PIP) pays your medical expenses and a portion of lost wages regardless of who caused the crash. Even in at-fault states, optional MedPay coverage on your policy can reimburse medical costs while your claim is pending. Using PIP or MedPay does not prevent you from later pursuing a UM/UIM claim or a lawsuit. **Health Insurance as a Fallback** Your group health plan, ACA marketplace plan, or government program (Medicare/Medicaid) can cover treatment while your legal claim resolves. Be aware that your health insurer may later assert a subrogation lien — a right to reimbursement from any settlement — so keep records of every payment made on your behalf. **Suing the At-Fault Driver Personally** You can file a lawsuit directly against an uninsured driver. The challenge is collectability. Before spending resources on litigation, your attorney should conduct an asset investigation: checking real property records, vehicle titles, business ownership, and bank account information where discoverable. If the driver owns real estate, has wages that can be garnished, or holds other non-exempt assets, a personal judgment can be worth pursuing. Many states allow installment payment plans on judgments, and judgments typically accrue interest. **State Minimum Trap** Every state sets minimum liability limits, but they are often dangerously low — sometimes as little as $10,000 per person. Even when the at-fault driver is technically "insured," those minimums may not begin to cover a hospitalization. Stacking UM/UIM coverage (where permitted), buying higher limits, and adding umbrella coverage are the practical defenses. **Practical Steps After the Crash** Document everything at the scene, obtain the police report, and notify your own insurer immediately even if you plan to pursue the at-fault driver. Delay can waive contractual rights. An experienced personal injury attorney can coordinate the UM/UIM claim, negotiate health insurance liens, and assess whether a personal lawsuit makes financial sense — often at no upfront cost under a contingency fee arrangement.