Medical Debt Statute of Limitations in New Hampshire

Last verified 2026-07 · Source: RSA 508:4 ✓ verified · 3 sources

Under RSA 508:4, you have 3 years from Date of the act or omission (date services rendered or date debt became due); under the discovery rule, clock starts when plaintiff discovered or reasonably should have discovered the injury and its causal connection to sue over unpaid medical bills in New Hampshire. Miss it and you lose the right to sue — but several New Hampshire-specific exceptions can extend (or shorten) that window, detailed below.

New Hampshire Deadlines for Related Claims

When the Clock Starts

In New Hampshire, the limitations period for medical debt collection generally begins on Date of the act or omission (date services rendered or date debt became due); under the discovery rule, clock starts when plaintiff discovered or reasonably should have discovered the injury and its causal connection. New Hampshire recognizes a discovery rule for this claim type: RSA 508:4, I-a explicitly provides a discovery rule: where the injury and its causal relationship to the defendant's act or omission were not and could not reasonably have been discovered at the time of the act, the clock begins when the plaintiff discovers or in the exercise of reasonable diligence should have discovered the injury and causation. This typically applies to latent medical injuries, not standard unpaid billing debt.

Exceptions That Can Extend the Deadline

• Minors: the clock is generally paused while the injured person is under 18.
• Fraudulent concealment: if the defendant actively hid the wrongdoing, the deadline may be extended until it was or should have been uncovered.
• Defendant leaves the state: absence can pause the clock in many circumstances.
• Government-claim trap: RSA 507-B and RSA 491-a may impose notice requirements for claims against government entities; contract claims for unpaid medical bills against government-run facilities may have separate procedural requirements under RSA 491-a.

New Hampshire's RSA 508:4 establishes a 3-year general limitation period covering personal actions including medical debt (contract and quasi-contract claims). The discovery rule under RSA 508:4, I-a is explicit in the statute but applies primarily to latent injury scenarios rather than ordinary unpaid medical billing. Minor tolling is governed by RSA 508:8, which tolls the SOL during minority or mental incompetency for 2 years after the disability ends.

Source: RSA 508:4, official New Hampshire statute · verified 2026-07

What to Do Before the Deadline Runs

1. Pin down your accrual date — the day the clock started — and calendar the deadline conservatively.
2. Preserve evidence now: photos, records, witness contacts, bills. Evidence decays faster than deadlines.
3. Send preservation/notice letters where required (especially for New Hampshire government defendants).
4. If the deadline is inside 6 months, treat it as urgent — filing suit is the only reliable way to stop the clock.

How New Hampshire Compares to Nearby States

Frequently Asked Questions

Sources

This page is legal information, not legal advice. Deadlines have exceptions that depend on your facts — confirm with a licensed New Hampshire attorney.