Hit From Behind: Who's at Fault in a Rear-End Collision
Updated · By the Law Figures editors
General information, not legal advice. Laws differ by state and change, so check the sources below or ask a lawyer licensed in your state before you act. Legal disclaimer
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If you were hit from behind, the driver who rear-ended you is usually found at fault, because every driver has a duty to keep a safe distance and stay alert to traffic ahead. Courts in many states treat a rear-end crash as evidence that the rear driver was careless. That isn't automatic, though: a sudden stop for no reason, broken brake lights or a car that cut in can shift part of the fault to the front driver.
| Situation | Who's usually at fault | Why |
|---|---|---|
| You were stopped in traffic or at a light | The rear driver | Following too closely or not paying attention |
| You slowed for traffic or a hazard | The rear driver | Drivers must expect slowdowns |
| You cut in front and braked | Shared, or you | The rear driver had no time to react |
| You stopped suddenly for no reason | Shared | Both drivers may have been careless |
| Your brake lights didn't work | Shared | The rear driver couldn't see you stop |
| Chain reaction of several cars | Often the last car that started it, but each driver's spacing matters | Each impact is looked at separately |
These are common outcomes, not rules. Each state's courts and your insurer look at the evidence in your crash.
When you share the fault
If you were partly at fault, your state's rule decides how much you can still recover. Put in your total damages and your share of the fault to see each rule:
Shared fault calculator
- Pure comparative fault
- $40,000
- Modified, barred at 51%
- $40,000
- Modified, barred at 50%
- $40,000
- Contributory negligence
- $0barred
Each state uses one of these rules. Your share of the fault is often the biggest argument in the claim, and the lawyer's fee and liens still come out of what's left.
With $50,000 in damages and 20% of the fault, you'd recover $40,000 under pure or modified comparative fault, and nothing under contributory negligence, which a few states still use. At 50%, the two modified rules split: one bars recovery and the other allows half.
What helps prove the other driver hit you
- Photos of both cars, especially where the damage is: rear damage on your car, front damage on theirs.
- The police report and the other driver's statement at the scene.
- Dashcam footage, from your car or nearby vehicles.
- Witnesses, including other drivers who stopped.
- Repair estimates that show the force of the impact.
Injuries common in rear-end crashes
Neck and back injuries are frequent, and symptoms can show up later. Get checked by a doctor promptly and keep every record; our guide to back pain after a car accident lists what insurers look at.
Which insurance pays
In most states the at-fault driver's liability insurance pays your damages. In no-fault states, your own personal injury protection pays medical bills first. Your collision coverage can fix your car right away, and your insurer can then go after the other driver's insurer. If the other driver's limits are low, see our policy limits search guide.
If you hire a lawyer
Rear-end claims are usually handled on contingency. Our car accident lawyer fees calculator shows what you'd keep after the fee, costs and liens.