What is the burden of proof?

The burden of proof is the duty to prove the facts that are in dispute. In a civil injury case, the person who was hurt and is suing generally carries it. That means you have to show, with evidence, that the other side was at fault, that it caused your injury and what your losses are.

Last checked November 9, 2026 · Official sources (4)

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What does the burden of proof mean in a real claim? An example

EXAMPLE ONLY. Rosa is rear-ended at a red light. Fault looks easy: the other driver hit her from behind. But Rosa waited three weeks to see a doctor about her neck, and the insurer says the pain could come from something else. Because Rosa has the burden, it is her job to connect the crash to the injury, not the insurer's job to disprove it.

So she gathers proof: the photos of her bumper, her doctor's note that the injury fits a rear-end crash, a coworker who saw her struggle at work the next day, and her pay stubs for missed shifts. Each piece helps carry the burden on a different part of her claim.

Why does the burden of proof matter after an injury?

It explains why adjusters ask for so much paper. Every gap in your records, such as weeks without treatment or a missing bill, is a place where the burden is not yet met. Insurers price claims by asking what you could prove, not what you say happened.

The other side usually carries the burden on its own defenses, for example if it claims you were partly at fault. That is why both sides collect evidence.

Does the burden of proof work the same in every state?

The basic idea is shared, and California spells it out in statute: the burden of proof is a party's obligation to establish by evidence a required degree of belief in the mind of the judge or jury. What changes is how high the bar is for certain claims. In Texas, a claimant seeking exemplary (punitive) damages must prove them by clear and convincing evidence.

Burden of proof vs. standard of proof

The burden of proof answers who has to prove something. The standard of proof answers how much proof is enough. In most injury cases, the plaintiff has the burden, and the standard is a preponderance of the evidence. Criminal cases use a far higher standard, beyond a reasonable doubt.

Questions

Who has the burden of proof in a car accident claim?

The injured person who sues, as the plaintiff, generally has it. The defense carries it on defenses it raises.

Do I have to prove my case beyond a reasonable doubt?

No. That is the criminal standard. Most civil claims require proof by a preponderance of the evidence.

What counts as proof?

Medical records, bills, photos, video, police reports, witness accounts and your own testimony. A jury weighs all of it together.

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Sources (4)

  1. U.S. Courts, Glossary of Legal Terms, checked 2026-11-09. “The duty to prove disputed facts. In civil cases, a plaintiff generally has the burden of proving their case. In criminal cases, the government has the burden of proving the defendant's guilt.”
  2. U.S. Courts, Glossary of Legal Terms, checked 2026-11-09. “Most civil causes of action require proof "by a preponderance of the evidence" (50 percent plus), but in some the standard is higher and requires "clear and convincing" proof.”
  3. Tex. Civ. Prac. & Rem. Code § 41.003(b), checked 2026-11-09. “The claimant must prove by clear and convincing evidence the elements of exemplary damages as provided by this section.”
  4. Cal. Evid. Code § 115, checked 2026-11-09. ““Burden of proof” means the obligation of a party to establish by evidence a requisite degree of belief concerning a fact in the mind of the trier of fact or the court.”

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