Medical Malpractice Laws in New Hampshire (2026): Deadlines & Caps

New Hampshire medical malpractice claims are governed by a three-year filing deadline that includes a discovery rule, and the state does not cap medical malpractice damages. Earlier statutory caps were struck down by the New Hampshire Supreme Court as unconstitutional. This page explains the current law for 2026, with each key figure traced to the New Hampshire statutes and controlling court decisions. It is general legal information, not legal advice.

The Deadline to Sue (Statute of Limitations)

Under RSA 508:4, personal actions, which include medical malpractice claims, must be brought within 3 years of the act or omission complained of. New Hampshire applies a discovery rule built into the same statute. When the injury and its causal relationship to the act or omission were not discovered and could not reasonably have been discovered at the time, the action must be commenced within 3 years of the time the plaintiff discovers, or in the exercise of reasonable diligence should have discovered, the injury and its causal relationship to the conduct.

The discovery rule requires both that the patient knew or should have known of the injury and that the injury was caused by the provider's conduct. Because the rule is fact-specific, the deadline should be confirmed early with counsel.

Tolling for Minors and Incapacity

New Hampshire handles disability with a fixed post-disability window rather than a suspension of the ordinary clock. RSA 508:8 provides that an infant or mentally incompetent person may bring a personal action within 2 years after such disability is removed. That is a 2-year period measured from the end of the disability; it does not restore the full three years.

Because the age of majority in New Hampshire is 18 under RSA 21-B:1, a child injured young generally has until age 20 to sue, not age 21. How that window interacts with the discovery rule in RSA 508:4 depends on the facts, so families of injured children should confirm the applicable deadline with counsel rather than assume a claim can wait.

Statute of Repose

New Hampshire does not impose a separate, longer absolute outer deadline that overrides the three-year discovery framework for ordinary medical malpractice claims. The discovery rule in RSA 508:4 is the controlling structure, and earlier, more restrictive medical-malpractice limitation provisions were part of the statutory scheme the state's courts narrowed in the line of cases addressing the medical injury reform act.

Damage Caps: There Is No Cap

New Hampshire does not cap medical malpractice damages. This is the key point for the state, because some sources still describe an $875,000 noneconomic cap that is no longer in force. The New Hampshire Supreme Court held that cap unconstitutional in Brannigan v. Usitalo (1991), reasoning that limiting noneconomic damages denied the most severely injured plaintiffs equal protection under the state constitution by placing the burden of supporting the medical and insurance industry on those least able to bear it.

Brannigan followed the court's earlier decision in Carson v. Maurer (1980), which invalidated multiple provisions of New Hampshire's medical injury reform legislation on similar state constitutional grounds. The result is that there is no statutory cap on noneconomic damages in New Hampshire medical malpractice cases today.

What Damages Are Recoverable

Because no statutory cap applies, a successful plaintiff may recover both economic damages and noneconomic damages without a fixed dollar limit. Economic damages include past and future medical expenses, lost wages, and lost earning capacity. Noneconomic damages include pain, suffering, disfigurement, and loss of enjoyment of life. The amount in any case still depends on the evidence and the jury's findings.

Affidavit or Certificate of Merit

New Hampshire does not require a plaintiff to file an affidavit or certificate of merit, or to clear a pre-suit screening panel, as a condition of filing a medical malpractice complaint. There is no automatic dismissal for the absence of such a document at the outset.

That said, New Hampshire law generally requires expert testimony to establish the applicable standard of care and how the provider breached it, except where the negligence is obvious to a layperson. RSA 507-E:2 puts that burden on the plaintiff by name, requiring affirmative evidence that includes expert testimony on the standard of reasonable professional practice, the provider's failure to meet it, and resulting injury. As a practical matter, a viable case still needs a qualified medical expert, even though no affidavit is filed with the complaint.

Standard of Care and Who May Be Liable

A New Hampshire medical malpractice claim turns on whether the provider met the standard of reasonable professional care for that specialty. Doctors, surgeons, nurses, hospitals, and other licensed health care providers can be defendants, and a hospital may be liable for the negligence of its employees. Proving the standard of care and its breach generally requires expert medical testimony under RSA 507-E:2.

Comparative Negligence

New Hampshire follows modified comparative negligence under RSA 507:7-d. A patient who is partly at fault can still recover, but the award is reduced by the patient's percentage of fault, and a patient whose fault is greater than the combined fault of the defendants (more than 50 percent) is barred from recovering. How fault is allocated is a fact question for the jury.

Wrongful-Death Medical Malpractice

When malpractice causes death, the estate may pursue a claim under New Hampshire's wrongful-death and survival statutes. Because there is no damages cap, recoverable losses are not subject to a fixed statutory limit, but the deadline and the question of who may bring or benefit from the action differ from a personal-injury claim. Families should confirm both with counsel.

How to Evaluate and Preserve a Possible Claim

If you believe medical care caused harm, request your complete medical records promptly and write down the timeline of events while details are fresh. Most New Hampshire medical malpractice attorneys offer a free initial consultation and work on a contingency fee, meaning the fee comes from any recovery. No attorney can guarantee an outcome or a dollar amount, and every case depends on its specific facts and the governing deadlines.