4 deadlines NoticeGuard models for Oklahoma: 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 Every deadline in this app comes from a statute read on the date shown next to its citation - that snapshot can go out of date.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.
Sent to the last-known address of the original contractor and an owner of the property, counted from this claimant's own last date of supply - required of every claimant except the original contractor.
What it counts from. 75 days after last furnishing (last day on site).
Applies to. Subcontractor, Supplier, Preconstruction service.
Oklahoma Statutes Title 42 § 142.6 (B)(1) Official source · statute text retrieved 2026-09-21
“Prior to the filing of a lien statement pursuant to Section 143.1 of this title, but no later than seventy-five (75) days after the last date of supply of material, services, labor, or equipment in which the claimant is entitled or may be entitled to lien rights, the claimant shall send to the last-known address of the original contractor and an owner of the property a pre-lien notice pursuant to the provisions of this section. Provided further, no lien affecting property then occupied as a dwelling by an owner shall be valid unless the pre-lien notice provided in this section was sent within seventy-five (75) days of the last furnishing of materials, services, labor or equipment by the claimant.”
If the date is missed (the statute's own terms). § 142.6(D): "Failure of the claimant to comply with the pre-lien notice requirements of this section shall render that portion of the lien claim for which no notice was sent invalid and unenforceable."
Also stated next to this deadline.
Exempt (§ 142.6(B)(3)): a "residential project" (single-family or multifamily, four or fewer dwelling units, none occupied by an owner), and aggregate claims under $10,000 - not modeled here; this app always shows this deadline.
A notarized affidavit of compliance with this notice must be filed with the county clerk at the time the lien statement is filed (§ 142.6(C)).
File lien statement (original contract track)
Filed with the county clerk, counted from this claimant's own date material/equipment was last furnished or labor was last performed under the contract.
What it counts from. 120 days after last furnishing (last day on site).
Applies to. Original contractor.
Oklahoma Statutes Title 42 § 142 (sole operative sentence) Official source · statute text retrieved 2026-09-21
“Any person claiming a lien as aforesaid shall file in the office of the county clerk of the county in which the land is situated a statement setting forth the amount claimed and the items thereof as nearly as practicable, the names of the owner, the contractor, the claimant, and a legal description of the property subject to the lien, verified by affidavit. Such statement shall be filed within four (4) months after the date upon which material or equipment used on said land was last furnished or labor last performed under contract as aforesaid; and if the claim be for the planting of any trees, vines, plants, or hedge, such statement shall be filed within four (4) months from such planting.”
If the date is missed (the statute's own terms). The statute's own operative language: the statement "shall be filed within" this period - no separate forfeiture clause is stated in § 142 itself.
Also stated next to this deadline.
Approximated as 120 calendar days (4 months × 30), the same approximation style used throughout this app.
File lien statement (subcontractor track)
Filed with the county clerk, counted from this claimant's own date material/equipment was last furnished or labor was last performed under the subcontract.
What it counts from. 90 days after last furnishing (last day on site).
Applies to. Subcontractor, Supplier, Preconstruction service.
Oklahoma Statutes Title 42 § 143 (sole operative sentence) Official source · statute text retrieved 2026-09-21
“may obtain a lien upon such land, or improvements, or both, for the same time, in the same manner, and to the same extent as the subcontractor, for the amount due for such material, equipment used on said land and labor, as well as any applicable profit and overhead costs due to the person, by filing with the county clerk of the county in which the land is situated, within ninety (90) days after the date upon which material or equipment used on said land was last furnished or labor last performed under such subcontract, a statement, verified by affidavit, setting forth the amount due from the contractor to the claimant, and the items thereof, as nearly as practicable, the name of the owner, the name of the contractor, the name of the claimant, and a legal description of the property upon which a lien is claimed.”
If the date is missed (the statute's own terms). The statute's own operative language: the statement is filed "within" this period - no separate forfeiture clause is stated in § 143 itself.
Bring civil action to enforce the lien
Counted from the time of filing the lien with the county clerk.
What it counts from. 365 days after notice of construction lien recorded.
Applies to. Original contractor, Subcontractor, Supplier, Preconstruction service.
Oklahoma Statutes Title 42 § 172 (sole operative sentence) Official source · statute text retrieved 2026-09-21
“Any lien provided for by this chapter may be enforced by civil action in the district court of the county in which the land is situated, and such action shall be brought within one (1) year from the time of the filing of said lien with the county clerk.”
If the date is missed (the statute's own terms). § 177: "if no action to foreclose or adjudicate any lien filed under the provisions of this chapter shall be instituted within one (1) year from the filing of said lien, the lien is canceled by limitation of law."
Also stated next to this deadline.
Approximated as 365 calendar days (1 year × 365), the same approximation style used throughout this app. A calendar year is 365 or 366 days, so this date always lands on or before the statutory one - never after it.
A lien statement may be amended by leave of court in furtherance of justice once an action is brought, except as to the amount claimed (§ 172).
Weekend and holiday rollover
NoticeGuard does not model a weekend or holiday extension for Oklahoma. 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
A residential exemption from the pre-lien notice is not modeled: § 142.6(B)(3) exempts a "residential project" (a single-family or multifamily project of four or fewer dwelling units, none occupied by an owner) and aggregate claims under $10,000 from the notice requirement entirely - this app always applies the notice rule below regardless.
Weekend/holiday rollover is NOT modeled. Two candidate general-computation statutes were checked directly: 12 O.S. § 2006(A)(1) is, by its own text, scoped to time "prescribed or allowed by this title [Title 12], by the rules of any court... or by order of a court" - it does not on its face reach Title 42's substantive filing deadlines. 25 O.S. § 82.1(C) is textually broader ("any act authorized, required, or permitted to be performed") and could plausibly reach these deadlines, but no Oklahoma case confirming it has actually been applied to a Title 42 mechanics'-lien deadline was found. The same honest gap as every other state in this app carrying this caveat.
The tree/vine/plant/hedge planting-date variant of the § 142 filing deadline is not modeled - a narrow carve-out this app's single-anchor model does not separately track.
No explicit statutory forfeiture clause was found inside § 142 or § 143 themselves for a late filing - this app states the consequence as the statute's own operative "shall file... within" language, not an invented "or the lien is void" clause (unlike § 142.6(D)'s pre-lien notice and § 177's enforcement deadline, which do state their own consequences explicitly).
Only §§ 142, 142.6, 143, 143.1, 172, and 177 have been read. The rest of Title 42 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.