In Plain English
Quick Answer
A document giving up lien rights only for the specific payment received, keeping rights for future work.
Definition
Definition
A partial lien waiver releases lien rights only for work completed and payment received through a specific date or pay period, while preserving lien rights for future work and any disputed amounts. Partial lien waivers are exchanged with each progress payment throughout the project and form a chain of documented payments. They may be conditional (effective only upon payment clearing) or unconditional (effective immediately).
Context
Why It Matters in Bidding
Partial lien waivers are the paperwork backbone of progress payments; GCs and owners typically withhold each payment until the corresponding waiver clears, so subs that mishandle them stall their own cash flow. Estimators and PMs should understand whether waivers are conditional or unconditional, because signing an unconditional waiver before the check clears can forfeit lien rights on money never received.
Example
Example
A drywall sub submits a conditional partial lien waiver with its month-three application for payment, releasing rights only through that billing period while preserving its claim for retainage and the remaining scope still to be installed.
See Also
Related Terms
FAQ
Questions Contractors Ask
What is the difference between a conditional and unconditional partial lien waiver?
A conditional waiver only takes effect once the payment actually clears, protecting the signer if the check bounces. An unconditional waiver releases lien rights immediately regardless of whether funds arrive. Best practice is to provide conditional waivers with the pay application and unconditional ones only after the prior payment has cleared.
How does a partial lien waiver differ from a final lien waiver?
A partial waiver releases rights only for work billed and paid through a specific date, keeping rights alive for remaining scope, retainage, and disputed amounts. A final waiver releases all lien rights on the project and is exchanged at closeout with the last payment, including retainage.
Should I sign a partial lien waiver before I receive payment?
Only if it is conditional. Signing an unconditional waiver before the funds clear can extinguish your lien rights for money you may never collect. Many states provide statutory waiver forms; using the conditional version tied to actual payment receipt is the standard protective practice for subcontractors and suppliers.
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