3 deadlines NoticeGuard models for Iowa: 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 Every deadline in this app comes from a statute read on the date shown next to its citation - that snapshot can go out of date.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.
Posted to the Mechanics' Notice and Lien Registry (MNLR), counted from this claimant's own last day of furnishing labor or materials - posting by this date gives the lien its full, unreduced strength.
What it counts from. 90 days after last furnishing (last day on site).
Applies to. Original contractor, Subcontractor, Supplier, Preconstruction service.
Iowa Code § 572.9 (sole operative sentence) Official source · statute text retrieved 2026-09-21
“The statement of account required by section 572.8 shall be posted by a general contractor or subcontractor within two years and ninety days after the date on which the last of the material was furnished or the last of the labor was performed.”
If the date is missed (the statute's own terms). Posting after this date does not lose the lien outright - see the sibling "post lien by outer bound" rule - but the lien is then reduced in strength under § 572.11 rather than full-strength.
Also stated next to this deadline.
A lien posted within these 90 days needs no additional owner-notice step under § 572.10.
This app models this 90-day marker as its own rule because the statute treats crossing it as a meaningful moment, not because it independently ends lien rights the way the outer bound below does.
Post lien (outer bound)
Posted to the Mechanics' Notice and Lien Registry (MNLR), counted from this claimant's own last day of furnishing labor or materials - the absolute cutoff. Posting after the 90-day marker above (but before this date) requires giving the owner written notice and reduces the lien's reach.
What it counts from. 820 days after last furnishing (last day on site).
Applies to. Original contractor, Subcontractor, Supplier, Preconstruction service.
Iowa Code § 572.9 (sole operative sentence) Official source · statute text retrieved 2026-09-21
“The statement of account required by section 572.8 shall be posted by a general contractor or subcontractor within two years and ninety days after the date on which the last of the material was furnished or the last of the labor was performed.”
If the date is missed (the statute's own terms). The statute's own operative language: the statement of account "shall be posted... within" this period - no valid posting is possible after it.
Also stated next to this deadline.
820 days approximates "two years and ninety days" (730 + 90), the same 30-day/month, 365-day/year style of approximation this app uses throughout.
A lien posted after the 90-day marker but before this outer bound (§ 572.10) reaches only the balance the owner still owed the general contractor at the moment the owner was actually served notice (§ 572.11) - a materially weaker lien than one posted within the first 90 days.
Bring action to enforce the lien
Counted from this claimant's own last day of furnishing labor or materials - NOT from when the lien was actually posted. The statute runs this from two years after the expiration of the 90-day mark following last furnishing, arriving at the same total as the outer posting bound above.
What it counts from. 820 days after last furnishing (last day on site).
Applies to. Original contractor, Subcontractor, Supplier, Preconstruction service.
Iowa Code § 572.27 (sole operative sentence) Official source · statute text retrieved 2026-09-21
“Any action to enforce a mechanic's lien shall be brought within two years from the expiration of ninety days after the date on which the last of the material was furnished or the last of the labor was performed.”
If the date is missed (the statute's own terms). The statute's own operative language: an action "shall be brought within" this period - an action not brought within it is time-barred.
Also stated next to this deadline.
Approximated as 820 calendar days - the statute's own ninety, plus two years as 730. The true span is 820 or 821 days, so this date always lands on or before the statutory one - never after it.
Confirmed, not assumed: this deadline runs from last furnishing (via the 90-day expiration), not from whenever the lien was actually posted to the registry - a claimant who posts late still has this same outer date to sue, no more and no less.
Weekend and holiday rollover
NoticeGuard does not model a weekend or holiday extension for Iowa. 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
No preliminary/pre-lien notice is modeled for the general scheme - confirmed absent, not merely unmodeled. §§ 572.13, 572.13A, and 572.13B (owner notice, notice of commencement, and preliminary notice, respectively) each state in their own final substantive subsection: "This section applies only to residential construction properties" - defined (§ 572.1(10)) as single-family or two-family dwellings used or intended for residential purposes. None of these apply to a general commercial project.
Weekend/holiday rollover is NOT modeled. Iowa Code § 4.1(34) states a general time-computation rule, but its own "Referred to in" cross-reference list (on the statute's own published page) does not include Chapter 572, and no case law confirming its application to §§ 572.9 or 572.27 specifically was found. The same honest gap as every other state in this app carrying this caveat.
The 90-day full-strength marker below is informational, not independently enforced by extinguishment - posting after it does not lose the lien outright, it only reduces the lien's reach (to the balance the owner still owed the general contractor when actually served notice, § 572.11) and adds a written-notice requirement (§ 572.10). This app shows it because the statute treats it as a moment that matters, not because missing it ends the lien the way missing the outer bound does.
Registry mechanics not modeled: the $40 posting-fee cap, the administrator's own 3-business-day turnaround for mail/fax-submitted filings, and the registry's 2-year inactivity/renewal rule for preliminary notices and notices of commencement (which does not apply to the lien itself) - all in § 572.34.
Only §§ 572.1, 572.8, 572.9, 572.10, 572.11, 572.13, 572.13A, 572.13B, 572.27, and 572.34 have been read. The rest of Chapter 572 - including priority mechanics (§§ 572.17-572.18) and bonded-project provisions - has not been incorporated.
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.