After a car accident that is your fault, your liability insurance pays the other driver’s medical bills and property damage up to your policy limits, your premiums go up at renewal, and anything above those limits becomes your personal problem. The size of that personal exposure depends on how badly the other driver was hurt, whether you were cited or charged, and how much coverage you were carrying when it happened.
What You Have to Do at the Scene
Stop. Every state requires drivers in a collision to remain at the scene, check on anyone who might be hurt, and call 911 if there are injuries. Leaving an accident you caused can turn a civil matter into a criminal one.
Once everyone is safe, exchange names, addresses, phone numbers, and insurance details with the other driver. Photograph the damage to both vehicles, the surrounding road, and any traffic signs or signals. Get contact information from witnesses. If an officer responds, they will usually prepare an accident report, which becomes important evidence later.
Do not apologize or accept blame on the roadside. The instinct is understandable, but a statement like “I’m so sorry, this was my fault” can be used against you later. Stick to factual descriptions and let the adjusters sort out liability.
Reporting the Accident
Beyond the police report, many states require a separate accident report to the department of motor vehicles if anyone was injured or if property damage exceeds a dollar threshold. That threshold varies by state but generally falls between $1,000 and $3,000. Filing deadlines also vary, typically from a few days up to 30 days after the crash.
You also need to notify your own insurer promptly. Most policies include a duty-to-cooperate clause requiring you to report accidents in a timely manner, share documents, and help with the investigation. Failing to cooperate can give your insurer grounds to deny the claim or refuse to defend you if you are sued.
How Your Insurer Handles the Other Driver’s Claim
Once you report the accident, your insurer opens a claim and assigns an adjuster. The adjuster reviews the police report, photos, repair estimates, and statements from everyone involved. Even when you think you were clearly at fault, the adjuster runs an independent analysis, and sometimes that reveals shared responsibility or circumstances that reduce your liability.
Your liability coverage has two parts. Bodily injury liability pays the other driver’s medical bills, lost wages, and pain and suffering. Property damage liability pays to repair their vehicle or its fair market value if it’s totaled. The adjuster compares repair estimates against the pre-accident value and pays the lower figure.
In the roughly dozen states with no-fault auto insurance laws, the process starts differently. Each driver files first with their own insurer for initial medical expenses through personal injury protection, regardless of who caused the crash. Your liability coverage only enters the picture if the other driver’s injuries exceed the state’s threshold for stepping outside the no-fault system.
Your Insurer’s Duty to Defend You
If the other party sues you, your liability insurer is contractually obligated to hire and pay for an attorney to defend you. This duty to defend kicks in as soon as a lawsuit alleges something potentially covered by your policy. The insurer picks the lawyer and covers defense costs separately from the policy limits available to pay a judgment.
The duty has edges. If your insurer believes the claim might fall outside your coverage, it can issue a reservation of rights letter, which means it will defend you for now but may deny coverage later if the facts warrant it. If your insurer wrongly refuses to defend you, courts in most jurisdictions let you hire your own attorney and seek reimbursement for the fees afterward.
What It Does to Your Premiums
An at-fault accident will almost certainly raise your premiums at the next renewal. Industry data puts the average increase at around 45% after a single at-fault collision, though the exact hit depends on your driving history, the severity of the crash, and the total claim cost. That surcharge typically sticks around for three to five years before gradually dropping off.
Accident Forgiveness
Some insurers offer accident forgiveness that prevents a premium increase after your first at-fault accident. These programs are not standardized. Some companies include forgiveness automatically after several years of clean driving; others sell it as a paid add-on. The protection usually applies to only one accident per policy period and is not available in every state. If you already have it on your policy, one at-fault accident may not cost you anything in extra premiums.
Non-Renewal and High-Risk Coverage
For serious accidents, or for drivers with multiple at-fault incidents, an insurer may decline to renew the policy at all. That pushes you into the high-risk market, where premiums can run two to three times standard coverage. In some states, drivers who cannot find coverage through normal channels are assigned to a state-run insurance pool that provides minimum coverage at elevated rates.
SR-22 Filings
Certain at-fault accidents trigger an SR-22 requirement, a certificate your insurer files with the state proving you carry at least the minimum liability coverage. SR-22s are most commonly required after a DUI, driving without insurance, or serious violations. The filing is typically required for three years, and if your coverage lapses during that period, your insurer notifies the state and your license is suspended again. The filing fee itself is modest; the real cost is the higher premiums that come with being classified high-risk.
When Your Insurer Will Not Pay
Standard auto policies contain exclusions that can leave you fully exposed. If the accident happened while you were committing a crime beyond a traffic violation, using the vehicle for an unauthorized purpose such as street racing, or intentionally causing the collision, your insurer can deny the claim outright. You are then personally responsible for every dollar of the other driver’s damages with no insurance backstop.
Driving without any insurance is worse. You face personal liability for all of the other driver’s medical bills and property damage, plus state penalties that commonly include fines, license suspension, and vehicle impoundment. Many states also require an SR-22 for years before you can get your full driving privileges back.
Tickets and Criminal Charges
If the officer at the scene concludes a traffic violation caused the crash, expect a citation. Common examples include speeding, running a red light, or following too closely. The ticket moves through the court system separately from the insurance claim. A conviction usually means a fine and points on your driving record, and enough points within a set timeframe can lead to a license suspension. Reinstatement fees commonly range from $50 to $500.
More serious circumstances leave traffic court for criminal court. If the accident involved drunk driving, reckless driving, or leaving the scene, you could face misdemeanor or felony charges depending on how badly anyone was hurt. Penalties escalate quickly: large fines, mandatory license revocation, and potential jail time. A criminal conviction also appears on background checks and can affect employment and housing for years.
If the Other Driver Sues You
Most claims settle through your insurer, but the other driver can file a civil lawsuit if damages exceed your policy limits or if settlement talks break down. This is where the financial exposure gets serious.
Say your policy carries a $50,000 bodily injury limit per person, and the other driver’s medical bills, lost wages, and pain and suffering total $120,000. Your insurer pays up to $50,000. The remaining $70,000 is yours. If the other driver gets a court judgment for that amount, they can pursue collection through wage garnishment or liens on your property. Federal law caps garnishment for this type of debt at 25% of your disposable earnings per pay period, or the amount by which your weekly earnings exceed 30 times the federal minimum wage, whichever produces the smaller garnishment.1Office of the Law Revision Counsel. United States Code Title 15 – Section 1673
Shared Fault Can Reduce What You Owe
Being primarily at fault does not always mean 100% of the liability. Most states follow some version of comparative negligence: if the other driver was partially responsible, your share drops by their share of fault. Found 70% at fault against a driver who was 30% at fault, you owe 70% of their total damages, not the full amount. A handful of states still follow contributory negligence, which bars the other driver from recovering anything if they were even slightly at fault. The rule in your state makes a real difference in what you ultimately owe.
Statute of Limitations
The other driver does not have unlimited time to sue. Every state sets a filing deadline for personal injury and property damage claims, typically between two and six years depending on the state and the type of claim. Once the deadline passes, the lawsuit is barred. Do not assume a claim has disappeared because you haven’t heard anything for a year, though. Some of the larger lawsuits arrive just before the deadline.
How Settlements Close the Book
Most at-fault claims resolve through settlement rather than trial. When the other driver accepts a settlement from your insurer, they sign a release of all claims, which permanently bars them from seeking more money from you or your insurer for the same accident. Once that release is signed, the matter is closed even if the other driver later discovers additional injuries or expenses. That finality is a core reason both sides often prefer settlement to the uncertainty of a trial.
Umbrella Insurance as a Safety Net
If you are worried about a lawsuit outrunning your auto policy limits, a personal umbrella policy adds another layer of liability protection. Umbrella coverage picks up after you exhaust the liability limits on your auto policy and can cover medical bills, property damage, and legal defense costs above those limits. For drivers with meaningful assets to protect, umbrella coverage is one of the more cost-effective ways to avoid the scenario where a single accident ends in wage garnishment or asset seizure.