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New York mechanics lien deadlines for contractors

A plain-English summary of how a contractor, subcontractor or supplier protects payment with a mechanics lien in New York. Last checked 2026-10-05. This is general information, not legal advice. Verify with your attorney before you rely on any deadline.

The rules at a glance

  • Who: contractors, subs, laborers, materialmen, benefit funds (Lien Law 3)
  • NTO: none. NOC: none. Claim: 8 months from completion; single-family dwelling 4 months; retainage 90 days (10); serve owner (11). Foreclosure: lien lasts 1 year unless extended (17)
  • Waiver forms: none; advance waivers void (34)

Source and last verified

Official source: https://www.nysenate.gov/legislation/laws/LIE/10. Last verified 2026-10-05. Deadlines often differ for residential and commercial projects and change when the law changes. Verify with your attorney.

How BossHours helps

BossHours loads state rules into the app and shows a verify-with-your-attorney note beside each one, so notices and waivers are prepared from your job records. It does not give legal advice.

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New York mechanics lien deadlines for contractors