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Lien waivers by state · Oklahoma

Oklahoma lien waiver requirements

Oklahoma is a non-statutory state

Oklahoma has no statute prescribing a mandatory lien-waiver form or specific waiver language, so parties may freely word their conditional or unconditional waivers as long as the intent to waive lien rights is clear. Waivers are governed by ordinary contract principles and are enforceable absent fraud or misrepresentation. Best practice is to condition a waiver on actual receipt of payment.

Statute: Okla. Stat. tit. 42, §§ 141-153 (lien statute generally); no dedicated statutory waiver-form section

Oklahoma lien waiver forms

The four standard waiver-and-release types and Oklahoma’s rules for each.
Waiver type	Statutory form?	Notarized?
Conditional waiver and release on progress payment
Unconditional waiver and release on progress payment
Conditional waiver and release on final payment
Unconditional waiver and release on final payment

Requirements at a glance

Notarization: Oklahoma does not require lien waivers to be notarized. (Note: the lien claim itself must be verified/notarized when filed, but that is separate from a waiver/release.)
Mandatory statutory language: No statute specifies required waiver wording; any form clearly waiving lien rights is acceptable. Parties have wide latitude over format and language.
Electronic signatures accepted

Key Oklahoma deadlines

Preliminary / pre-lien notice: Subcontractors/suppliers without a direct contract with the owner: pre-lien notice within 75 days of last furnishing labor/materials (required for owner-occupied dwellings, and for non-residential claims over $10,000). General/original contractors: no preliminary notice required. (Okla. Stat. tit. 42, § 142.6)
Notice of intent to lien: No separate statutory pre-filing notice of intent. (After filing, the claimant must mail notice of the recorded lien to the owner within 5 days by certified mail.)
Mechanics lien filing deadline: Original/general contractors: within 4 months of last furnishing labor or materials (Okla. Stat. tit. 42, § 142). Subcontractors: within 90 days of last furnishing labor or materials (Okla. Stat. tit. 42, § 143).

Oklahoma lien waiver FAQ

Does Oklahoma require a specific lien waiver form?

No. Oklahoma has no statutory lien-waiver form and does not mandate specific waiver language; parties may use any form that clearly waives lien rights, subject to ordinary contract principles.

Do lien waivers need to be notarized in Oklahoma?

No. Oklahoma does not require lien waivers to be notarized. (The lien statement itself must be verified when filed, but a waiver/release does not require notarization.)

Can lien waivers be signed electronically in Oklahoma?

Yes. Under Oklahoma's adoption of the Uniform Electronic Transactions Act (Okla. Stat. tit. 12A, § 15-101 et seq.) and the federal E-SIGN Act, electronic signatures are as valid as handwritten ones, so lien waivers may be signed electronically where the parties agree to do so.

What is the deadline to file a mechanics lien in Oklahoma?

It depends on role: original/general contractors have 4 months from last furnishing labor or materials (Okla. Stat. tit. 42, § 142), while subcontractors have 90 days from last furnishing (Okla. Stat. tit. 42, § 143).