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Oklahoma lien waiver requirements
Oklahoma does not prescribe a waiver form. The bigger risk is filing a partial release that accidentally voids the whole claim.
Okla. Stat. tit. 42, §§ 141 to 153 (Liens of Mechanics, Contractors, and Materialmen)
The short version
Oklahoma's mechanic's lien chapter sits in Title 42 of the Oklahoma Statutes, sections 141 onward. There is no statutory waiver form. The chapter also does not have a clean rule for partial releases, which means a poorly worded one can wipe out an entire lien claim. For GCs, this is mostly a clear chapter — recording and notice rules are predictable. The waiver wording is where care matters.
At a glance
- Original contractor lien filed within 4 months of last work
- Subcontractor lien filed within 90 days
- 75-day pre-lien notice required under § 142.6 unless an exemption applies
- No statutory waiver form — partial release wording is the trap
Filing deadlines by tier
Under 42 O.S. § 142, an original contractor has four months from the last day labor or materials were furnished to file a lien statement with the county clerk. Subcontractors and material suppliers have 90 days from their last furnishing under § 143. The statement has to identify the parties, the amount, and the property.
For a GC tracking sub risk, the 90-day window is the active one. Build your waiver cadence around it. Conditional progress waivers with each pay app keep the rolling 90-day exposure visible. Unconditional final waivers after the last check clears, before day 90, close out each sub's claim.
The 75-day pre-lien notice under § 142.6
Under 42 O.S. § 142.6, a claimant has to send a pre-lien notice to the owner and original contractor within 75 days of last supplying labor, services, materials, or equipment. The statute carves out two cases: claims under $10,000 in the aggregate, and residential projects of four or fewer dwelling units where none is occupied by an owner. Outside those carve-outs, the 75-day notice is a hard prerequisite to a valid lien claim.
For an owner-occupied dwelling, the notice rule is sharper still: no lien is valid against a property occupied as a dwelling by its owner unless the 75-day notice went out. For mixed-portfolio GCs, that means a sub who missed the notice on an owner-occupied home has no lien against the homeowner. Confirm the notice was sent before treating any such sub as a real lien risk.
The partial-release trap
Oklahoma's chapter does not spell out how partial releases work. A waiver intended to cover one pay period can, depending on wording, end up reading as a complete release. Once recorded with the county clerk as a release, the lien claim it covered can be hard to revive — even if a later balance comes due on the same project.
Use waiver forms that name the dollar amount being released and the pay period it covers. Avoid catch-all language like waiver of all liens or release of all claims unless the work is fully complete and paid. When in doubt, anchor the release to a specific invoice or pay app number.
Questions
Does Oklahoma require a specific lien waiver form?
No. There is no statutory lien waiver form in Oklahoma. Parties can use any form, but partial-release wording must be precise to avoid releasing the full claim.
How long does an Oklahoma subcontractor have to file a lien?
90 days from the last day labor or materials were furnished. Original contractors have four months.
Does Oklahoma require a pre-lien notice from subcontractors?
Yes, under 42 O.S. § 142.6, within 75 days of last furnishing. Two exemptions apply: claims under $10,000 in the aggregate, and residential projects of four or fewer dwelling units with no owner-occupant. On an owner-occupied dwelling, no lien is valid unless the 75-day notice was sent.
Send a Oklahoma waiver in two minutes.
The right form, the right notice, signed on a phone. Released when the check clears.
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