If someone rear-ends you, whose insurance do you call? For many drivers, the answer seems obvious: the person who hit you should cover the costs. In most rear-end collisions, that’s true—the other driver is often held responsible for the damage. Still, your insurer should also be in the loop. Early notification can preserve benefits under your policy, trigger any medical payments coverage, and give you protection if the other driver is uninsured or disputes fault.
Reaching out to both companies keeps the claims process moving and creates a paper trail that may protect your rights later. At Goldblatt + Singer, we work with St. Louis drivers daily to help them take the proper steps in the correct order so they can recover fully after a crash.
A rear-end accident occurs when one vehicle strikes the back of another, usually because the following driver fails to slow or stop in time. These collisions often result from sudden changes in traffic speed, distracted driving, or unsafe following distances. They can occur in heavy traffic, at intersections, or when a lead vehicle slows unexpectedly and the driver behind cannot react quickly enough.
Although many rear-end crashes happen at lower speeds, the impact can still cause serious property damage and a wide range of injuries. Whiplash, soft tissue damage, spinal injuries, and concussions are common, even when vehicles appear only slightly damaged. The abrupt force can jolt occupants forward, creating injury risks that may not be immediately obvious.

Rear-end accidents can happen for many reasons, but the most common causes involve driver inattention or unsafe driving behaviors. In our experience handling auto collision cases, we see specific patterns repeat:
While driver negligence is the leading cause, road design issues or defective vehicle components can also play a role. Identifying every contributing factor is critical because it may open additional avenues for compensation beyond the at-fault driver’s insurance.
In the moments after a rear-end collision, what you do next can significantly impact your safety, health, and ability to recover compensation. Following a clear process will help protect your rights and strengthen your insurance claim.
In most Missouri rear-end collisions, the at-fault driver’s liability insurance is generally responsible for covering medical expenses, lost income, and vehicle repairs. Still, it is equally important to notify your insurance company, even if you are confident you were not at fault. Doing so protects your rights and ensures you can access all potential benefits under your policy.
There are several reasons to contact your insurer after a crash:
The Missouri Department of Revenue notes that certain accidents must be reported. Waiting too long can affect your ability to recover through your coverage.
If you think your insurance company is mishandling your claim or acting in bad faith, Goldblatt + Singer can step in and negotiate a fair settlement with the insurer; if necessary, we can also pursue claims against the bad faith insurer.
In most cases, the driver in back is presumed to be at fault, as every motorist is expected to keep a safe following distance and be prepared for sudden changes in traffic. That said, the presumption isn’t absolute.
Liability may shift, or be shared, if the lead driver stopped abruptly without reason, reversed into another vehicle, or had faulty brake lights. Building this type of case usually relies on evidence, such as dashcam footage, photos from the scene, credible witness accounts, or traffic camera recordings. In some cases, accident reconstruction experts may analyze skid marks, vehicle damage, and speed data to establish what happened.
While insurance companies make their own determinations, their conclusions are not the final word. An attorney can review the evidence, challenge inaccurate assessments, and ensure all relevant details are considered before fault is finalized and any settlement is accepted.
If someone rear-ends you, whose insurance do you call? This is a question many drivers face after a collision, and a choice that can influence your recovery. Goldblatt + Singer helps drivers in St. Louis address insurance disputes, protect their rights, and work toward full compensation. Call (314) 231-4100 today to arrange a free consultation.
📚 Get AI-powered insights from this content:
Jeff Singer, Managing Partner at Goldblatt + Singer for over a decade, is a seasoned personal injury attorney known for his compassionate yet tough advocacy. He has resolved hundreds of cases and recovered millions for clients. Recognized as a Missouri Super Lawyer and Top 100 National Trial Lawyer, Jeff also serves on the Missouri Bar’s Chief Disciplinary Committee and the Board of Governors for the Missouri Association of Trial Attorneys.
This page has been created, edited, and reviewed by a team of legal writers following our thorough editorial guidelines. It was approved by our Founding Partner, Jeffrey Singer, who has over 30 years of experience as a personal injury attorney.