New Hampshire mechanics lien deadlines

1 deadline NoticeGuard models for New Hampshire: what each one counts from, the statute it was read from, and the statute text.

Information, not legal advice. This app reports what the statute says and cites the section it read. It is not legal advice, it does not file anything for you, and it does not tell you what to do.
Verify with the statute or an attorney. Statutes change, and courts reinterpret them. Every deadline in this app comes from a statute read on the date shown next to its citation - that snapshot can go out of date. Missing a mechanics lien deadline can extinguish your claim permanently, so confirm any deadline you are relying on with an attorney licensed in that state before you act on it.
Data verified: statute text retrieved 2026-09-21 (each citation below carries its own date). Rule data from the NoticeGuard app, source commit 22f9300.

Deadlines at a glance

DeadlineCounted fromApplies toStatute
Secure the lien by attachment120 days after last furnishing (last day on site)Original contractor, Subcontractor, Supplier, Preconstruction serviceN.H. Rev. Stat. Ann. § 447:9, § 447:10 (sole operative sentences)

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Each deadline, with the statute

Secure the lien by attachment

The lien exists automatically once labor or materials are furnished, but continues for only 120 days after this claimant's own last furnishing - and must be secured within that window by a court-ordered attachment of the property, or it lapses.

What it counts from. 120 days after last furnishing (last day on site).

Applies to. Original contractor, Subcontractor, Supplier, Preconstruction service.

N.H. Rev. Stat. Ann. § 447:9, § 447:10 (sole operative sentences)
Official source · statute text retrieved 2026-09-21

“447:9 Duration. – The lien created by RSA 447:2-7, inclusive, shall continue for 120 days after the services are performed, or the materials, supplies or other things are furnished, unless payment therefor is previously made, and shall take precedence of all prior claims except liens on account of taxes. 447:10 How Secured. – Any such lien may be secured by attachment of the property upon which it exists at any time while the lien continues, the writ and return thereon distinctly expressing that purpose.”

If the date is missed (the statute's own terms). The statute's own mechanism: the lien "shall continue for 120 days" and no longer - an attachment obtained after that window secures nothing, since the lien it would attach to no longer exists.

Also stated next to this deadline.

Weekend and holiday rollover

NoticeGuard does not model a weekend or holiday extension for New Hampshire. The dates above are the plain count from the date you enter. Check whether a Saturday, Sunday or holiday changes your date.

What this rule set does not cover

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About the NoticeGuard app

NoticeGuard is an app that turns a job's dates into a countdown for each statutory step, shows the statute text each date was read from, exports a calendar file (.ics) and sends reminders 14, 7 and 1 day before each deadline. It tracks and reminds; it does not file anything for you.

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