BossHours

Iowa mechanics lien deadlines for contractors

A plain-English summary of how a contractor, subcontractor or supplier protects payment with a mechanics lien in Iowa. 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: anyone furnishing material/labor under contract with owner, owner-builder, GC or sub (572.2)
  • NTO: residential, sub must post preliminary notice to the mechanics' notice and lien registry (572.13B); commercial sub-tier notify GC within 30 days (572.33). NOC: residential, GC/owner-builder posts to registry within 10 days of commencement or no lien (572.13A)
  • Claim: post to registry within 90 days of last work (later allowed with notice, limited to balance due) (572.8-.11). Foreclosure: within 2 years after the 90-day period (572.27)
  • Waiver forms: none. Residential: registry notices

Source and last verified

Official source: https://www.legis.iowa.gov/docs/code/572.pdf. 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.

Try BossHours free for 7 days

Field Hours $149, Office Hours $379 and After Hours $499 a month. Unlimited users on every plan, no setup fee, month to month, 7-day free trial.

Start your free trial
Iowa mechanics lien deadlines for contractors