Filing a car accident lawsuit

In 2023, 40,901 people died in traffic crashes on U.S. roads, and roughly 2.4 million more were injured. Early estimates for 2024 put the fatality count even lower, at 39,345, continuing a slow decline.¹ Behind nearly every one of those numbers is an insurance claim, and behind a much smaller slice of those claims is a lawsuit. Suing after a car accident isn't the first move. It's what happens when the first move, a claim against the at-fault driver's insurance, doesn't get you paid what the injury is actually worth.

This guide covers how a car accident lawsuit works at the national level: when you actually need one, how a state's fault rules shape the case before you ever file, what a statute of limitations really controls, and what the lawsuit itself looks like once it's underway. Car accident law is built state by state rather than federally, which is exactly why the rules below vary as much as they do. Treat the state examples here as illustrations of the range rather than an answer for your own case.

When a claim turns into a lawsuit

Most car accident cases resolve through the insurance claims process alone. You send a demand letter laying out the medical bills, lost wages, and other losses, the adjuster counters, and the two sides land somewhere in the middle. A lawsuit becomes necessary when that process breaks down: the insurer denies liability outright, disputes that your injuries came from the crash, or simply won't offer enough to cover what you've lost, particularly when your damages exceed the at-fault driver's policy limits.

There's a related wrinkle worth knowing about, even though it isn't technically a lawsuit against the other driver. If the at-fault driver is uninsured or carries only the state minimum in liability coverage, injured drivers often turn instead to their own uninsured or underinsured motorist coverage. Most of those policies route disputes to arbitration rather than a courtroom, but if the insurer won't arbitrate in good faith or pay what the policy actually owes, that dispute can turn into its own lawsuit, against your own insurance company for breach of contract rather than against the other driver.

Filing suit doesn't mean the case is headed for a jury. A federal study of tort cases in state courts found that only about 4 percent of dispositions came from a bench or jury trial; the rest ended through settlement, dismissal, or a judge's ruling before trial ever started.² In practice, filing the complaint is often what finally convinces an insurer to negotiate seriously, because the case now has a court date and a discovery process attached to it.

Fault rules decide the shape of the case before you file

A minority of states run a no-fault system, where your own insurer pays your initial medical bills and lost wages through personal injury protection (PIP) coverage no matter who caused the crash. The tradeoff is that you generally can't sue the other driver for pain and suffering unless your injury clears a threshold set by state law. Michigan limits tort liability for non-economic loss to cases involving death, serious impairment of a body function, or permanent serious disfigurement.³ New York defines its own "serious injury" threshold to include fractures, permanent loss of use of a body organ or function, and significant disfigurement, among other categories.⁴ Clear the threshold and the lawsuit route opens up for damages your PIP coverage doesn't reach. Miss it, and that route stays closed regardless of how frustrating the PIP payout was.

Most states skip the no-fault system entirely. In a traditional at-fault, or tort, state, you can sue the other driver directly for the full range of damages from the start, without clearing any injury threshold first.

Comparative fault versus contributory negligence

Once a case is filed, the next fight is often about how much of the crash was your fault, because most states reduce a plaintiff's recovery by their own share of blame rather than wiping it out entirely. California adopted this approach, called pure comparative negligence, in the 1975 case Li v. Yellow Cab Co., meaning a plaintiff who is 90 percent at fault can still recover the remaining 10 percent of damages.⁵ Most other comparative-fault states use a modified version with a cutoff instead. Georgia bars recovery once a plaintiff is 50 percent or more at fault,⁶ while Ohio moves that line to 51 percent.⁷ A single percentage point of fault, argued in front of a jury, can be the difference between a full recovery and nothing at all.

A handful of jurisdictions still follow the older contributory negligence rule, where any fault on the plaintiff's part, even a small share, bars recovery completely. Virginia is one of them. Its Supreme Court reaffirmed the rule as recently as 2017, in a case involving a man struck by a train while wearing headphones near the tracks, though it allowed the claim to proceed under the narrow "last clear chance" exception.⁸ Alabama, Maryland, North Carolina, and Washington, D.C. apply the same all-or-nothing standard. Where the crash happened changes not just how much you can recover, but whether you can recover anything.

Statutes of limitations

Every state sets a deadline for filing a car accident lawsuit, and missing it, with rare exceptions, ends the case regardless of how strong it is. Nationally, the range runs from about one year in the strictest states to six years in the most lenient, with two years being the most common length. California gives injured plaintiffs two years from the date of the crash to sue.⁹ Maine goes to six years, one of the longest windows in the country.¹⁰ Louisiana used a one-year deadline for close to two centuries before its legislature extended it to two years for injuries occurring on or after July 1, 2024, a reminder that these deadlines aren't fixed forever either.¹¹

The clock usually starts on the date of the crash, but most states pause or shorten it in specific situations: when the injured person is a minor, when the injury wasn't immediately discoverable, or when the at-fault party is a government entity. Government claims often come with their own separate, much shorter notice deadline. If the vehicle that hit you was owned by the federal government, the Federal Tort Claims Act requires you to file a written administrative claim with the responsible agency within two years, before you're allowed to file suit in court at all.¹²

Where the case gets filed

A car accident lawsuit is typically filed in state court, usually in the county where the crash happened or where the defendant lives. That can change when the parties live in different states and the amount in dispute is large enough: under federal diversity jurisdiction, a case can be filed in, or moved to, federal court when the plaintiff and defendant are citizens of different states and the amount in controversy exceeds $75,000.¹³ Most car accident suits never reach that threshold or that mismatch of citizenship, so they stay in state court from start to finish. Venue rules add another layer even within a single state's court system: a case generally has to be filed where the crash occurred or where the defendant lives, and picking the wrong courthouse can get a case transferred or dismissed before anyone reaches the merits.

Small claims for the smaller disputes

Not every car accident dispute needs a full civil lawsuit. When the amount at stake is limited, commonly a diminished value claim or a deductible reimbursement fight over property damage, small claims court is often faster and doesn't require a lawyer. The dollar limits vary by state and tend to be modest: California caps an individual small claims case at $12,500, with a lower limit for businesses.¹⁴ Injury lawsuits almost always exceed limits like that and have to go through the regular civil court system instead.

What happens after you file

Filing the complaint starts the formal clock. The defendant, typically represented by an attorney the insurance company hires and pays even though the insurer itself usually isn't named as a party, has a set window to respond with an answer admitting or denying each allegation and raising defenses like comparative fault.

Discovery comes next, and it's usually the longest stretch of the case. Federal Rule of Civil Procedure 26, which most state court systems mirror closely in their own rules, requires each side to disclose the witnesses and documents it may rely on, the calculations behind its damages claim, and any insurance policies that could cover a judgment.¹⁵ From there, the parties exchange written interrogatories, request documents like medical records and repair estimates, and take depositions, sworn testimony given outside the courtroom under oath. Either side can also ask the court to decide the case before trial through a motion for summary judgment, arguing the undisputed facts already point to one outcome.

Most cases settle somewhere in this stretch, often at a mediation or settlement conference where a neutral third party helps both sides land on a number. The smaller share that don't settle move to trial, in front of a jury or, if both sides waive that right, a judge alone. A verdict becomes a judgment, which either side can appeal. Collecting on that judgment is its own separate step: when damages exceed the at-fault driver's policy limits, actually getting paid in full can mean pursuing personal assets, which is often harder than winning the case was in the first place.

What you can recover

Damages in a car accident lawsuit generally fall into three categories. Economic damages cover costs you can attach a receipt to: medical bills, lost wages, property damage, future medical care. Non-economic damages cover pain and suffering, emotional distress, and loss of enjoyment of life; harder to price, but recoverable in every state. Punitive damages, meant to punish especially reckless conduct like drunk driving, are rarer and reserved for cases involving more than ordinary negligence, and several states cap them by statute. Texas, for example, limits exemplary damages to whichever is greater: $200,000, or two times economic damages plus up to $750,000 in non-economic damages.¹⁶

When a crash is fatal, a wrongful death claim is a separate action from the injury claim itself, and state law usually limits who has standing to bring it. California restricts that group to the decedent's surviving spouse, domestic partner, children, and certain other dependents.¹⁷ Other states draw the line in slightly different places, but the underlying structure, limiting wrongful death claims to specific surviving family members rather than anyone affected by the loss, is close to universal.

Paying for a lawyer

Car accident lawyers overwhelmingly work on contingency: no fee unless they recover money for you, with the fee coming out of the settlement or judgment as a percentage, commonly around a third. The rules governing these agreements are stricter than most people expect. The American Bar Association's Model Rule 1.5, adopted in some form by every state's bar, requires contingency fee agreements to be in writing, signed by the client, and specific about how the fee is calculated and which expenses the client owes regardless of outcome.¹⁸ The contingency percentage usually isn't the only cost, either: court filing fees, expert witness charges, and the cost of obtaining medical records typically get deducted from the settlement separately, on top of the attorney's cut, so ask how those are handled before you sign anything.

Given how much the fault rules, filing deadlines, and damages caps shift from state to state, talking to a local attorney who knows your state's specific version of these rules is worth doing sooner rather than later, especially as a deadline gets closer. thatcarhitme.com's legal directory is a place to start looking for one.

This article is general information, not legal advice.

Sources

1. NHTSA, "NHTSA Estimates 39,345 Traffic Fatalities in 2024" - https://www.nhtsa.gov/press-releases/nhtsa-estimates-39345-traffic-fatalities-2024

2. Bureau of Justice Statistics, "Tort Bench and Jury Trials in State Courts, 2005" - https://bjs.ojp.gov/content/pub/pdf/tbjtsc05.pdf

3. Michigan Compiled Laws § 500.3135 - https://www.legislature.mi.gov/Laws/MCL?objectName=mcl-500-3135

4. New York Insurance Law § 5102(d) - https://www.nysenate.gov/legislation/laws/ISC/5102

5. Li v. Yellow Cab Co., 13 Cal. 3d 804 (1975) - https://law.justia.com/cases/california/supreme-court/3d/13/804.html

6. Georgia Code § 51-12-33 - https://law.justia.com/codes/georgia/2020/title-51/chapter-12/article-2/section-51-12-33/

7. Ohio Revised Code § 2315.33 - https://codes.ohio.gov/ohio-revised-code/section-2315.33

8. Coutlakis v. CSX Transportation, Inc., 293 Va. 212 (2017) - https://www.leagle.com/decision/invaco20170309i16

9. California Code of Civil Procedure § 335.1 - https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=335.1&lawCode=CCP

10. 14 Maine Revised Statutes § 752 - https://www.legislature.maine.gov/statutes/14/title14sec752.html

11. Louisiana Civil Code art. 3493.11 (enacted by Act 423 of 2024) - https://www.legis.la.gov/legis/ViewDocument.aspx?d=1349148

12. 28 U.S.C. § 2401(b) - https://uscode.house.gov/view.xhtml?req=granuleid%3AUSC-prelim-title28-section2401&num=0&edition=prelim

13. 28 U.S.C. § 1332 - https://www.law.cornell.edu/uscode/text/28/1332

14. California Courts Self-Help Guide, "Small claims or limited civil" - https://selfhelp.courts.ca.gov/small-claims-or-limited-civil

15. Federal Rules of Civil Procedure, Rule 26 - https://www.uscourts.gov/sites/default/files/2025-02/federal-rules-of-civil-procedure-dec-1-2024_0.pdf

16. Texas Civil Practice and Remedies Code § 41.008 - https://statutes.capitol.texas.gov/Docs/CP/htm/CP.41.htm

17. California Code of Civil Procedure § 377.60 - https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=377.60&lawCode=CCP

18. American Bar Association, Model Rules of Professional Conduct, Rule 1.5 - https://www.americanbar.org/groups/professional_responsibility/policy/ethics_2000_commission/e2k_rule15rem/