If Someone Rear-Ends You Whose Insurance Do You Call
When someone rear-ends you, you call their insurance company, since the driver who hits you from behind is almost always at fault.
The driver behind you is responsible for stopping in time
Rear-end crashes have a built-in assumption. The driver in back is expected to leave enough room and enough attention to stop for the car ahead, so when they don't, the fault usually lands on them. That's why you call their insurance first. Their policy is the one that's supposed to pay for your car and your injuries.
This isn't about blame in a moral sense. It's about which policy is on the hook, and insurance companies sort that out using fault rules that are consistent almost everywhere, even though the exact process and paperwork can vary by state. You file what's called a liability claim against the other driver's insurance, and their insurer investigates and pays if they agree their driver was at fault.
There are cases where it's not so clean. If you stopped suddenly without reason, or your brake lights were out, or there's a chain reaction with multiple cars, fault can get split or shift partly onto you. Some states allow fault to be shared between drivers, which can reduce what you're able to collect. That's worth checking with your insurer or an adjuster if your situation isn't a simple one-car-hits-another scenario.
You can also call your own insurance even when you're not at fault. You're not filing a claim against yourself, you're just reporting the accident, and your insurer can guide you, especially if the other driver is uninsured or their insurer is slow or difficult. Your policy's uninsured motorist coverage, if you have it, exists exactly for the moments when the other driver's insurance doesn't come through.
What if the other driver says it wasn't their fault?
If the other driver disputes fault, you still file your claim with their insurer and let the claims process sort it out. Insurance companies don't rely on what either driver says in the moment. They look at the damage pattern, police reports if one was filed, witness statements and sometimes traffic camera footage.
A rear-end collision is one of the clearest cases in insurance because the physical evidence almost always points the same way. If their insurer pushes back or tries to split fault, you can involve your own insurer for support, request the police report, and if needed, dispute the decision. Keep photos and notes from the scene, since they matter most if the story gets contested later.
Now that you know whose insurance to call, compare quotes to make sure your coverage is ready for next time.
Whether you also call your own insurance company
If you do
You report the accident to your insurer even though you're not at fault. They open a file, can advise you on dealing with the other driver's insurer, and step in fast if that driver is uninsured or their company delays. Your rates typically aren't affected since you weren't at fault.
If you don't
You deal only with the other driver's insurance company and handle the claim on your own. If their insurer is slow, lowballs you, or the driver turns out to be uninsured, you have no one in your corner and may end up paying out of pocket while things get sorted out.
Do I have to pay my deductible if the other driver was at fault?
No, not if you go through their insurance and they accept fault. The deductible only applies when you use your own collision coverage. If you'd rather not wait on the other insurer's investigation, you can use your own collision coverage upfront, pay your deductible, and your insurer will then try to recover that money from the at-fault driver's insurer, refunding your deductible if they succeed.
What if the other driver doesn't have insurance?
Then you'll likely need to rely on your own uninsured motorist coverage, if you have it, since there's no other policy to pay your claim. This coverage is optional in some places and required in others, so check your policy or your state's rules. Without it, you may have to pursue the driver directly, which is often slow and difficult to collect on.
How long do I have to file a claim after being rear-ended?
It depends on your state and your own insurer's policy terms, so check both soon after the accident rather than waiting. Report it as early as possible even if you're not sure yet how serious the damage or injury is. Waiting too long can weaken your claim or, in some cases, cause you to miss a legal deadline for filing entirely.
The driver who hits you owes the claim, so don't let uncertainty stop you from calling their insurer first.
