2 deadlines NoticeGuard models for South Dakota: 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 Every deadline in this app comes from a statute read on the date shown next to its citation - that snapshot can go out of date.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.
Filed with the register of deeds of the county where the improved premises are situated, counted from this claimant's own last day of work or last item of skill, services, materials, or machinery furnished.
What it counts from. 120 days after last furnishing (last day on site).
Applies to. Original contractor, Subcontractor, Supplier, Preconstruction service.
S.D.C.L. § 44-9-15 (sole operative sentence) Official source · statute text retrieved 2026-09-21
“The lien shall cease at the end of one hundred twenty days after doing the last of such work, or furnishing the last item of such skill, services, material, or machinery, unless within such period a statement of the claim therefor be filed with the register of deeds of the county in which the improved premises are situated, or of the county to which such county is attached for judicial purposes, or if the claim be under the provisions of subdivision 44-9-1(2), with the secretary of state.”
If the date is missed (the statute's own terms). The statute's own mechanism: "The lien shall cease at the end of one hundred twenty days" unless timely filed.
Also stated next to this deadline.
Before filing, a copy of the lien statement must be mailed to the owner by registered or certified mail, with the post office receipt attached to the statement (§ 44-9-17) - a condition precedent to filing, not a separate deadline this app computes.
The statement must be verified by oath and contain: notice of intention to claim a lien and its amount; that the amount is due and for what improvement; the claimant's and the other party's names and addresses; the dates of the first and last items furnished; a description of the property; the owner's name and address; and an itemized account.
Assert lien in an enforcement action
Asserted by complaint or answer in an action in circuit court, counted from this claimant's own last item of the claim - the same date stated as "last furnished" in the filed lien statement, not the filing date itself.
What it counts from. 2190 days after last furnishing (last day on site).
Applies to. Original contractor, Subcontractor, Supplier, Preconstruction service.
S.D.C.L. § 44-9-24 (sole operative sentence) Official source · statute text retrieved 2026-09-21
“No lien may be enforced in any case unless the holder of the lien asserts the lien, either by complaint or answer, within six years after the date of the last item of the lien holder's claim as set forth in the filed and entered lien statement.”
If the date is missed (the statute's own terms). The statute's own mechanism: the lien "may [not] be enforced... unless" asserted within this period; a lien not enforced in time may be cancelled of record on the owner's affidavit.
Also stated next to this deadline.
Approximated as 2,190 calendar days (6 years × 365), the same approximation style used throughout this app.
Confirmed, not assumed: this deadline runs from this claimant's own last furnishing (as stated in the lien statement itself), not from when the lien was filed - a claimant who files close to the 120-day filing deadline does not lose enforcement time as a result, since both clocks share the same start date.
No one is bound by the resulting judgment unless made a party within the same six years.
Weekend and holiday rollover
NoticeGuard does not model a weekend or holiday extension for South Dakota. 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
The condition-precedent mailing step (§ 44-9-17: a copy of the lien statement must be mailed to the owner by registered or certified mail BEFORE filing, with the post office receipt attached to the statement) is not modeled as a separate deadline - it must simply happen before the filing this app computes, not by any independent day count.
The sub-subcontractor/supplier-to-subcontractor notice of furnishing (§ 44-9-53, 60 days after last furnishing) is NOT modeled - it is conditional: it only applies "if the provisions of §§ 44-9-50 and 44-9-51 are first invoked," i.e., only if the owner or a party in direct agreement with the owner chose to file an optional notice of project commencement in the first place, a fact this app does not collect.
The owner's optional lien-account demand mechanism (§§ 44-9-10, 44-9-11, 44-9-14) and the resulting 10-day/15-day response windows are not modeled - they are owner-initiated and data-dependent, not deadlines a claimant tracks on their own.
The 30-day forfeiture-on-demand mechanism (§ 44-9-26: an owner's written demand can force suit within 30 days or the lien is forfeited) is not modeled - a data-dependent alternate this app does not otherwise collect a demand-received date for. This app always shows the default six-year deadline.
Weekend/holiday rollover is NOT modeled - no general South Dakota computation-of-time statute was researched this pass.
Only §§ 44-9-1, 44-9-15 through 44-9-18, and 44-9-24 have been read closely. The rest of Chapter 44-9 - including the foreclosure-action mechanics (§§ 44-9-23, 44-9-25 through 44-9-48) and the notice-of-project-commencement scheme (§§ 44-9-50 through 44-9-53) - was reviewed but not otherwise 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.