Oklahoma Mechanics Lien Statutes: Deadlines, Venues & Citations
Where Oklahoma liens are filed and enforced
A Oklahoma mechanics lien is filed with the County Clerk in the county where the project sits — 4 months from last date of furnishing. Filing in the wrong county does not perfect the claim, which matters on projects that straddle county lines. Those are two different clocks against two different offices, and Oklahoma claimants lose rights far more often by missing the second one than the first.
Oklahoma deadlines by claimant role
For subcontractors and suppliers: Notice to Owner — 75 days from first furnishing (42 O.S. § 143); Record the lien — 90 days from last furnishing (42 O.S. § 172); file suit — 1 years from lien recorded (42 O.S. § 175); bond notice — 90 days from last furnishing (61 O.S. § 113); file suit — 1 years from last furnishing (61 O.S. § 113); miller act notice — 90 days from last furnishing (40 U.S.C. § 3133(b)(2)). For general contractors: Record the lien — 4 months from last furnishing (42 O.S. § 172). Every window runs from the claimant's own dates, not the unpaid invoice date.
Rules specific to Oklahoma
Sub/supplier must serve 'Notice of Lien Rights' on owner within 75 days of first furnishing. Failure to serve limits lien rights. Prime contractor must file lien statement within 4 months of last furnishing of labor or materials. Sub/supplier must file lien statement within 90 days of last furnishing. Must have served notice on owner first. File suit to enforce lien within 1 year of recording. Written notice within 90 days of last furnishing on public works projects. No mechanic's lien on public property. File suit on payment bond within 1 year of last furnishing. Second-tier claimants only. No notice = no bond claim. File no sooner than 90 days AND no later than 1 year.
How Oklahoma notices must be served
Oklahoma does not impose a preliminary notice on most claimants (N/A), but the notices it does require are strict on method. Accepted delivery for the notices tracked here: Certified Mail, Return Receipt Requested. Service runs to the Owner. Keep the proof of service in the project file — Oklahoma disputes over whether a notice was properly served are decided on that documentation.
Public projects in Oklahoma
No lien attaches to public property in Oklahoma. On public state local and public federal work the remedy is a payment bond claim instead — bond notice within 90 days of last furnishing, served on the Prime Contractor and Surety (61 O.S. § 113). 5 public-project deadlines are tracked for Oklahoma.
Oklahoma statute citations
The Oklahoma deadlines above come from 42 O.S. § 143, 42 O.S. § 172, 42 O.S. § 175, 61 O.S. § 113, 40 U.S.C. § 3133(b)(2), 40 U.S.C. § 3133(b)(1), 62 O.S. § 41.23, 61 O.S. § 226. Statutes are amended periodically — verify current text before relying on any date, and consult a licensed Oklahoma construction attorney on a specific project.
Frequently Asked Questions
How long do you have to file a mechanics lien in Oklahoma?
4 months — From last date of furnishing. The filing goes to the County Clerk in the project's county. See 42 O.S. § 172. The clock runs from the claimant's own last furnishing or completion, not the invoice date.
Where do you file a mechanics lien in Oklahoma?
With the County Clerk in the county where the property is located. Recording in the wrong county does not perfect the lien.
Does Oklahoma require a preliminary notice?
Not for most claimants (N/A). Sub-tier claimants should still document first furnishing, because Oklahoma's filing and enforcement windows are applied strictly.
How long do you have to enforce a Oklahoma mechanics lien?
1 year — From filing. A recorded lien left unenforced past that window generally expires and can expose the claimant to slander-of-title risk if it stays on record.
When must retainage be released in Oklahoma?
Retainage released within 45 days of substantial completion. 10% maximum retainage on public contracts. (61 O.S. § 226).