Lien Waiver
A document in which a contractor or subcontractor waives their right to file a mechanics lien against the property, typically in exchange for payment. Used throughout a project to confirm that each party has been paid and no outstanding lien claims exist.
A lien waiver is a document in which a contractor, subcontractor, or supplier waives their right to file a mechanics lien against the property in exchange for payment. It is the primary tool owners and GCs use to clear lien exposure throughout a project.
Four Types
Lien waivers come in four flavors that combine two dimensions. Conditional versus unconditional: conditional waives rights only if payment clears; unconditional waives rights immediately. Partial versus final: partial applies to a specific progress payment; final applies to the complete contract balance at project end. The best combination depends on the situation. Conditional partial waivers on progress payments and unconditional final waivers at closeout are a common pattern.
Why the Paper Trail Matters
Mechanics liens can be filed by any party in the payment chain who performed work or supplied materials and was not paid. Paying the GC does not automatically clear subcontractor or supplier rights. Without lien waivers from every paid party, an owner can end up paying for the same work twice — once to the GC who did not pass the money down, and again to the sub who filed a lien. Waivers from each level confirm that money actually reached the people who did the work.
Practical Use
At each progress payment, the GC collects conditional waivers from subs and suppliers covering work completed to date, and provides the owner with a matching conditional waiver from the GC. At final payment, waivers become unconditional and final, clearing all rights. Good contract administration makes this process routine. Missing a waiver at closeout creates risk that lingers long after the project is done.
Frequently asked questions
Two main types and two timing variations, giving four total. Unconditional waivers waive lien rights regardless of whether payment has cleared. Conditional waivers waive lien rights only upon actual payment clearing. Each type comes in progress (for interim payments) and final (at project close) variants. Best practice is conditional on progress and unconditional at final.
The party being paid — the GC signs when receiving payment from the owner, subcontractors sign when receiving payment from the GC, and suppliers sign when receiving payment for materials. Each level of the payment chain produces a waiver. Owners collect waivers from every party in the chain to confirm payment has moved all the way down.
So that no unpaid party retains lien rights. Paying the GC does not automatically clear rights of subcontractors or suppliers under them. Without lien waivers, an owner might pay the GC only to have a sub file a lien because they were not paid down the chain. Collecting waivers at each level documents that payments actually reached the people who did the work.
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