Who the deadlines apply to
The direct contractor's lien statement period comes from § 142 [1]. Section 143 reaches a subcontractor, an artisan or day laborer in the employ of the contractor, and an artisan or day laborer in the employ of, or a person furnishing material or equipment to, such a subcontractor, and its rule names subcontractors, sub-subcontractors, suppliers and laborers [1].
The pre-lien notice of § 142.6 is sent by a claimant, a term § 142.6(A) limits to a person "other than an original contractor" [1]. Its default rule names subcontractors, sub-subcontractors, suppliers and laborers, and the direct contractor's row reads None required [1]. Service of the lien and the deadline to sue each name all five roles, and every rule here is listed for any project type.
How the periods run
Pre-lien notice. The default period, 75 days after the last date of supply of material, services, labor, or equipment [1], is joined by a second limit: § 142.6(B)(1) also places the notice before the filing of a lien statement [1]. Under § 142.6(D), the portion of the lien claim for which no notice was sent is invalid and unenforceable [1]. Section 142.6(B)(1) adds that no lien affecting property then occupied as a dwelling by an owner is valid unless the notice was sent within seventy-five days of the last furnishing by the claimant [1].
For a claimant whose claim relates to a residential project, a single family or multifamily project of four or fewer dwelling units, none of which are occupied by an owner, or whose aggregate claim is less than Ten Thousand Dollars ($10,000.00), except for a lien affecting property then occupied as a dwelling by an owner, the pre-lien notice row reads None required [1].
Lien filing. Both filing periods run from the last furnishing of material or equipment used on the land, or the last labor performed. Section 142 ties that event to work "under contract" [1], and § 143 to work "under such subcontract" [1].
Service of the lien. The county clerk mails a notice of the lien to the owner, at the address the claimant furnishes, Within five (5) business days after the date of the filing of the lien statement [1]. If with due diligence the person against whom the claim is made or the owner of the property cannot be found, after the claimant files an affidavit setting forth such facts, the occupant rule reads 60 days after the lien statement is filed [1].
Suit. Section 172 places the civil action in the district court of the county where the land is situated [1]. If no action to foreclose or adjudicate the lien is instituted within one year from the filing of the lien, § 177 says the lien is canceled by limitation of law [1].
Counting the days
Under 25 O.S. § 82.1(C), an act due on a holiday that § 82.1(A) designates may be performed on the next succeeding business day [2]. Section 82.1(A) counts each Saturday and Sunday among those holidays, and this moving rule reaches every stage on this page [2]. Under § 82.1(B), the Governor's yearly Executive Order specifies the dates of the listed holidays other than Saturdays and Sundays [2].
Section 82.2 names further holidays, and a public office may close on any of them. When the public office where an act is to be performed is closed on one, the act may be performed on the next succeeding business day [2].
What changed recently
Section 142.6, the pre-lien notice section, was last amended by Laws 2025, c. 486, § 505, effective January 1, 2026 [1]. Section 143 was last amended by Laws 2013, c. 78, § 2, effective November 1, 2013, § 143.1 by Laws 2010, c. 148, § 1, effective November 1, 2010, § 142 by Laws 1980, c. 216, § 2, § 177 by Laws 1995, c. 338, § 21, and § 172 by Laws 1977, c. 207, § 13 [1].