The Complete Guide to Construction Lien Waivers

Everything general contractors need to know about lien waivers — types, state requirements, common mistakes, and best practices.

What is a Lien Waiver?

A lien waiver is a legal document exchanged between parties in the construction payment chain. When a subcontractor or supplier receives payment, they sign a lien waiver to confirm receipt and waive their right to file a mechanics lien against the property for that amount.

For general contractors, collecting lien waivers from every sub and supplier on every pay application is critical to protecting the property owner (and themselves) from double-payment risk.

4 Types of Lien Waivers

Conditional Progress

Used for progress payments. Only effective when payment clears. Safest for subs.

Unconditional Progress

Effective immediately upon signing. Risk: lien rights waived even if check bounces.

Conditional Final

Used for final payment. Conditional on actual receipt. Waives all remaining rights.

Unconditional Final

Most dangerous. Waives all lien rights immediately. Only use after payment confirmed.

States with Mandatory Statutory Forms

12 states require specific statutory lien waiver forms. Using the wrong form in these states can invalidate the waiver entirely.

StateStatuteNotarizationNotes
AZA.R.S. §33-1008Not required4 statutory forms required
CACivil Code §8132-8138Not required4 statutory forms required under Civil Code
FL§713.20Not requiredStatutory forms for partial and final waivers
GAO.C.G.A. §44-14-366Not requiredInterim and final statutory forms
MIMCL 570.1115Not requiredPartial conditional and unconditional forms
MO§429.005-429.015Not requiredStatutory forms required since 2019
MS§85-7-405RequiredNotarization may be required
MT§71-3-531Not requiredStatutory waiver forms
NVNRS 108.2457Not required4 statutory waiver forms
TXProperty Code §53.284-53.286RequiredNotarization required
UT§38-1a-802Not requiredStatutory waiver forms
WY§29-2-115RequiredNotarization may be required

Common Lien Waiver Mistakes

⚠️Signing unconditional waivers before payment clears
⚠️Using non-statutory forms in states that require them
⚠️Not collecting waivers from every tier of the payment chain
⚠️Missing over-broad language that waives rights beyond the payment
⚠️Notarizing in states where it's not required (can invalidate)
⚠️Not tracking which subs have outstanding waivers

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