Statute of Limitations for Unjust Enrichment / Restitution in New Hampshire

Overview

Run this scenario in DocketMath using the Statute Of Limitations calculator.

In New Hampshire, claims framed as unjust enrichment or restitution often end up treated as “civil actions” for statute of limitations purposes rather than as a separate, stand-alone category. In practice, that means the clock usually turns on the state’s general statute of limitations for civil actions.

For New Hampshire, DocketMath’s statute-of-limitations calculator applies the general/default period because no claim-type-specific sub-rule was found for unjust enrichment/restition (beyond the general civil-actions rule). Translation: unless you’re dealing with an exception that changes timing (like a tolling event), the analysis typically starts with the same baseline limitation period.

Limitation period

Default (general) statute of limitations

New Hampshire’s general statute of limitations for civil actions is:

• 3 years
• General statute: RSA 508:4

When you use the DocketMath calculator, the key question is usually when the cause of action accrued—because the limitation period runs from that start point, not from the date you realize you have a claim (unless a specific accrual/tolling doctrine applies).

How the timing works in a practical workflow

Most users run the calculator by identifying:

1. Trigger event / accrual date (the date the legal basis for the claim was complete enough to sue)
2. Filing date (or the date you want to check against)
3. Whether an exception/tolling may apply (see next section)

Then DocketMath outputs whether the claim likely falls within the 3-year window under the general rule.

Here’s a simple illustration of how outputs change:

What to enter in DocketMath

In DocketMath’s Statute of Limitations tool (see: /tools/statute-of-limitations), you’ll typically enter:

• Jurisdiction: New Hampshire (US-NH)
• Start date: accrual/trigger date
• End date: proposed filing date (or “today,” if you’re doing a quick check)

Because the general rule is 3 years, the calculator will add 3 years to the start date and compare it to your end date.

Key exceptions

New Hampshire’s general rule (RSA 508:4) can be affected by exceptions that change either:

• when the clock starts (accrual rules), or
• whether time is suspended (tolling), or
• whether a different limitations scheme applies to a particular category of claim.

DocketMath’s statute-of-limitations calculator is designed around the general/default period when no claim-type-specific rule is detected for unjust enrichment/restitution. Still, you should actively look for any of the following situation types that can shift timing in real cases:

Common timing-shift categories to check

• Tolling events: Some circumstances pause the limitations clock.
• Accrual disputes: The parties may disagree on the event date that starts the limitations period.
• Procedural events: Certain filings or amendments can affect timing calculations, depending on the facts.

Exception-driven input changes (how to think about it in the calculator)

If you believe an exception applies, don’t just rerun the general calculator once and stop. Instead:

• Adjust the start date if an accrual rule is different for your facts.
• Or, if the exception is a tolling situation, consider how you want the calculator to model the “effective” start/end dates (for many workflows, users treat the tolling period as suspending time and adjust dates accordingly).

Because DocketMath’s tool is built to compute based on the statute framework provided, the clearest workflow is:

• run the default 3-year result first,
• then rerun with revised dates only if the exception meaningfully changes them.

Statute citation

The general statute of limitations for civil actions in New Hampshire is:

• RSA 508:4 — 3 years

Source reference (general civil-actions limitations framework):
https://www.thelaw.com/law/new-hampshire-statute-of-limitations-civil-actions.391/?utm_source=openai

Use the calculator

To run a limitation check in DocketMath, use this quick checklist:

Example calculation (general rule)

Suppose:

• Accrual/trigger date: 2022-09-10
• Proposed filing date: 2025-10-01

With RSA 508:4’s 3-year period, the deadline under the default rule would be:

• 2025-09-10

Because 2025-10-01 is after 2025-09-10, the general-rule result would be:

• likely outside the limitations period (subject to exceptions, accrual disputes, or tolling).

Inputs that change the output the most

1. Start date (accrual date): shifting it by even a few weeks changes the deadline.
2. End date (filing date): same effect—moving it past the computed deadline typically changes the outcome from “within” to “outside.”
3. Whether you model an exception: if an exception suspends time, you’ll need to reflect that by using an adjusted effective date approach.

Related reading

• Choosing the right statute of limitations tool for Vermont — Tool comparison
• Statute of limitations in Singapore: how to estimate the deadline — How-to guide
• Choosing the right statute of limitations tool for Connecticut — Tool comparison