New Hampshire's rule on being sued after a car accident turns on a feature the national template does not capture: New Hampshire courts apply modified comparative fault by decisional law. A plaintiff more negligent than the defendant is barred; otherwise damages are reduced by the plaintiff’s share of fault. The controlling authority is N.H. common law (modified comparative fault). The personal-injury deadline is Three years for personal injury claims under N.H. Rev. Stat. Ann. § 508:4.. Auto liability insurance is required; comparative fault findings at trial or in settlement negotiations directly affect recoverable damages.
Key takeaways
- Fault system: modified comparative fault with a 51% bar (recovery barred if you are more than 50% at fault).
- Controlling authority: N.H. common law (modified comparative fault).
- In New Hampshire, if you are more than 50% at fault (51%+), you recover nothing. At 50% or less, damages are reduced by your share of fault.
- Personal-injury filing deadline: Three years for personal injury claims under N.H. Rev. Stat. Ann. § 508:4..
- Insurance: Auto liability insurance is required; comparative fault findings at trial or in settlement negotiations directly affect recoverable damages.
Worked example under New Hampshire law
The illustration below uses only rules already stated for New Hampshire. It is a research hypothetical, not a prediction of what a court will do.
Two drivers collide in New Hampshire. Each claims the other was negligent, and one was partly at fault.
- Identify the fault system: In New Hampshire, if you are more than 50% at fault (51%+), you recover nothing. At 50% or less, damages are reduced by your share of fault..
- Apply what fault does to the claim: New Hampshire courts apply modified comparative fault by decisional law. A plaintiff more negligent than the defendant is barred; otherwise damages are reduced by the plaintiff’s share of fault.
- Calendar the lawsuit deadline: Three years for personal injury claims under N.H. Rev. Stat. Ann. § 508:4..
- Separate insurance coverage from whether a tort claim exists: Auto liability insurance is required; comparative fault findings at trial or in settlement negotiations directly affect recoverable damages.
In New Hampshire the accident lawsuit turns on N.H. common law (modified comparative fault) and the modified 51 rule, not on a national no-fault script.
Can you be sued after a car accident in New Hampshire?
Yes. A driver, passenger, pedestrian, or property owner injured in a crash can file a negligence (or related) claim against an allegedly at-fault driver — and against owners or employers in some agency/vicarious-liability settings. Being “mostly not at fault” does not stop a lawsuit from being filed; it shapes whether the plaintiff can win and how much they recover.
You can also be sued even when you believe the other driver is primarily responsible. Fault is usually a contested jury (or settlement) issue under N.H. common law (modified comparative fault).
Comparative fault and negligence in New Hampshire
New Hampshire courts apply modified comparative fault by decisional law. A plaintiff more negligent than the defendant is barred; otherwise damages are reduced by the plaintiff’s share of fault.
In New Hampshire, if you are more than 50% at fault (51%+), you recover nothing. At 50% or less, damages are reduced by your share of fault.
Practical consequences:
- Settlement leverage tracks predicted fault shares.
- Insurers often reserve rights or deny coverage based on comparative-fault findings.
- Multiple defendants (other drivers, employers, vehicle owners) can split fault among themselves under New Hampshire allocation rules.
Insurance: at-fault, PIP, and no-fault thresholds
Auto liability insurance is required; comparative fault findings at trial or in settlement negotiations directly affect recoverable damages.
First-party benefits (PIP / MedPay) do not always eliminate a tort suit. Where New Hampshire uses a no-fault threshold, confirm whether your injuries meet the statutory trigger before assuming a lawsuit is barred or available.
Deadline to sue (statute of limitations)
Three years for personal injury claims under N.H. Rev. Stat. Ann. § 508:4.
Missing the deadline usually ends the claim permanently. Tolling (minority, discovery rules, bankruptcy stays) can apply in narrow situations — do not assume extra time without counsel.
What to do after a crash in New Hampshire
- Get medical care and document injuries.
- Preserve photos, dash-cam, witness names, and the police report.
- Notify your insurer promptly; avoid recorded statements to the other driver’s insurer without advice.
- Calendar the SOL: Three years for personal injury claims under N.H. Rev. Stat. Ann. § 508:4..
- Use LawDiver’s LawDiver rail (scoped to New Hampshire) to research comparative/contributory negligence opinions before negotiating.
Case law: fault and auto accidents in New Hampshire
David W. Thibault v. Sears, Roebuck & Company
David W. Thibault v. Sears, Roebuck & Company, 118 N.H. 802 (1978)
…and desirable product. See Twerski, From Defect to Cause to Comparative Fault —Rethinking Some Product Liability Concepts, 60 Marquette L. Rev. 297, 316-19 (1977) (discussing risk-utility analysis). *808 Another factor to be considered is the presence or absence of a warning. Of course, some products, such as carving knives, are obviously and inherently dangerous. When a risk i…
Practitioners open David W. Thibault v. Sears, Roebuck & Company when New Hampshire car-accident / fault turns on the distinction in this sentence: "See Twerski, From Defect to Cause to Comparative Fault —Rethinking Some Product Liability Concepts, 60 Marquette L. Rev. 297, 316-19 (1977) (discussing risk-utility analysis). *808 Another factor to be considered is the presence or absence of a warning." Do not lift it out of the facts the court was deciding.
Stephen C. Wyle v. Scott Lees & a.
Stephen C. Wyle v. Scott Lees & a., 162 N.H. 406 (2011)
…town asked.” The defendants filed a special plea asserting comparative negligence pursuant to RSA 507:7-d (2010), a DeBenedetto statement, see DeBenedetto v. CLD Consulting Eng’rs, 153 N.H. 793 (2006), and a motion in limine seeking apportionment to a number of parties, including the plaintiff. The defendants also filed a motion in limine seeking to preclude economic loss dama…
On car-accident / fault, Stephen C. Wyle v. Scott Lees & a. speaks to the New Hampshire dispute in this passage: "The defendants filed a special plea asserting comparative negligence pursuant to RSA 507:7-d (2010), a DeBenedetto statement, see DeBenedetto v. CLD Consulting Eng’rs, 153 N.H. 793 (2006), and a motion in limine seeking apportionment to a number of parties, including the plaintiff." The surrounding opinion shows how the court applied that language to the record.
Norman E. Weldy, Jr., Administrator of the Estate of Nancy Weldy v. Town of Kingston Denise Gerry b/m/n/f Roberta
…5-275 requests that this court adopt the doctrine of “pure” comparative negligence, and asserts that RSA 507:7-a, the comparative negligence statute, violates the equal protection and due process provisions of the New Hampshire and Federal Constitutions. For the reasons that follow, we affirm. On September 11, 1982, five teenagers, three males ages 19, 18, and 15, and two femal…
New Hampshire opinions such as Norman E. Weldy, Jr., Administrator of the Estate of Nancy Weldy v. Town of Kingston Denise Gerry b/m/n/f Roberta are cited where car-accident / fault is disputed. The court stated: "RSA 507:7-a, the comparative negligence statute, violates the equal protection and due process provisions of the New Hampshire and Federal Constitutions. For the reasons that follow, we affirm." That is the language to brief; the rest of the decision supplies the procedural posture.
Janet DeBenedetto, Administratrix of the Estate of David DeBenedetto v. CLD Consulting Engineers, Inc.
…d Insurance,” Laws 1986, 227:2, closely modeled the Uniform Comparative Fault Act, 12 U.L.A. 38-49 (Supp. 1987), in its treatment of comparative fault and apportionment of damages. Jaswell Drill Corp. v. General Motors Corp., 129 N.H. 341, 343-44 (1987). Indeed, when the legislature enacted this framework, “it clearly intended these provisions to function as a unified and compr…
Janet DeBenedetto, Administratrix of the Estate of David DeBenedetto v. CLD Consulting Engineers, Inc. is worth reading on New Hampshire car-accident / fault because the court put the point in its own words: "Insurance,” Laws 1986, 227:2, closely modeled the Uniform Comparative Fault Act, 12 U.L.A. 38-49 (Supp. 1987), in its treatment of comparative fault and apportionment of damages. Jaswell Drill Corp. v. General Motors Corp., 129 N.H. 341, 343-44 (1987)." Use that passage as the starting point, then read the facts that precede it.
Consolidated Utility Equipment Services, Inc. v. Emhart Manufacturing Corporation — Bois, J., dissenting
…with this ruling, however, I would permit contribution on a comparative basis among non-settling joint tortfeasors. The current rule prohibiting contribution among joint tortfeasors is grossly inequitable because it permits a joint tortfeasor to avoid liability if he is not sued, while it forces the tortfeasor who is sued to bear the entire burden of a loss, even if he was only…
New Hampshire opinions such as Consolidated Utility Equipment Services, Inc. v. Emhart Manufacturing Corporation — Bois, J., dissenting are cited where car-accident / fault is disputed. The court stated: "I would permit contribution on a comparative basis among non-settling joint tortfeasors." That is the language to brief; the rest of the decision supplies the procedural posture.
James Hurley v. Public Service Company of New Hampshire Darrel D. Lynch, Jr. v. Public Service Company of New Hampshire
…s appeal of two cases consolidated for trial is whether our comparative negligence statute, RSA 507:7-a (Supp. 1979), permits a plaintiff in a multiple defendant negligence action to recover so long as the plaintiffs negligence does not exceed the total causative negligence of all the defendants. We hold that it does. The facts which give rise to this appeal may be simply state…
Practitioners open James Hurley v. Public Service Company of New Hampshire Darrel D. Lynch, Jr. v. Public Service Company of New Hampshire when New Hampshire car-accident / fault turns on the distinction in this sentence: "RSA 507:7-a (Supp. 1979), permits a plaintiff in a multiple defendant negligence action to recover so long as the plaintiffs negligence does not exceed the total causative negligence of all the defendants. We hold that it does." Do not lift it out of the facts the court was deciding.
Paul Broughton v. Dennis Proulx
Paul Broughton v. Dennis Proulx, 152 N.H. 549 (2005)
…ode; and (3) in its instruction to the jury on the issue of comparative fault. We affirm. *551I The jury could have found the following facts. The defendant owned a twenty-seven unit apartment building in Manchester, where the plaintiff lived. On December 9, 2001, at approximately 10:15 p.m., the plaintiff left his apartment to go to work. After descending a set of exterior sta…
New Hampshire opinions such as Paul Broughton v. Dennis Proulx are cited where car-accident / fault is disputed. The court stated: "We affirm. *551I The jury could have found the following facts. The defendant owned a twenty-seven unit apartment building in Manchester, where the plaintiff lived. On December 9, 2001, at approximately 10:15 p.m., the plaintiff left his apartment to go to work." That is the language to brief; the rest of the decision supplies the procedural posture.
Walley F. LeFavor v. Fred H. Ford, Jr.
Walley F. LeFavor v. Fred H. Ford, Jr., 135 N.H. 311 (1992)
…uding certain evidence supporting the defendant’s theory of comparative negligence; (3) did the court err in denying the defendant’s request for a special verdict form; and (4) did the court apply the wrong standard of review when it considered the defendant’s motion to reduce damages and for remittitur. The defendant’s first contention is that the court erred when it “in essen…
Practitioners open Walley F. LeFavor v. Fred H. Ford, Jr. when New Hampshire car-accident / fault turns on the distinction in this sentence: "uding certain evidence supporting the defendant’s theory of comparative negligence; (3) did the court err in denying the defendant’s request for a special verdict form; and (4) did the court apply the wrong standard of review when it considered the defendant’s motion to reduce da" Do not lift it out of the facts the court was deciding.
Frequently asked questions
Can I get sued if the accident was not my fault?
Anyone can file a suit. Winning — and collecting — depends on proving negligence and overcoming New Hampshire’s modified 51 rules under N.H. common law (modified comparative fault).
What if I was partly at fault?
In New Hampshire, if you are more than 50% at fault (51%+), you recover nothing. At 50% or less, damages are reduced by your share of fault.
How long do I have to sue after a car accident in New Hampshire?
Three years for personal injury claims under N.H. Rev. Stat. Ann. § 508:4.
Does insurance prevent a lawsuit?
Auto liability insurance is required; comparative fault findings at trial or in settlement negotiations directly affect recoverable damages. Coverage disputes are separate from whether a tort claim exists.