Conditional vs Unconditional Lien Waiver

By Wyatt Cooper · Published October 16, 2026 · 3 min read

Key takeaways

A conditional waiver gives up lien and payment rights only once the stated payment is actually received, so it is safe to sign before you are paid.
An unconditional waiver gives up those rights when it is signed, so sign it only after the money is in your account.
California and Texas prescribe the forms by statute, and a waiver that does not substantially follow the form is unenforceable there.

A conditional lien waiver releases a claimant's lien and payment-bond rights for an amount only when that payment is actually received. An unconditional lien waiver releases them as soon as it is signed, whether or not payment arrived. Subs usually give a conditional waiver with each pay application and an unconditional one after the check clears.

Conditional and unconditional, side by side

Conditional vs unconditional lien waivers (California Civil Code §§ 8132–8138 and Texas Property Code § 53.284 forms, read October 16–17, 2026)
	Conditional	Unconditional
Takes effect	Only on receipt of the stated payment	When signed
When to sign	With the pay application, before payment	After the payment has cleared
Risk if unpaid	Low: rights are kept until paid	High: rights are gone even if never paid
Progress and final versions	Yes	Yes
California form	Civ. Code § 8132 (progress), § 8136 (final)	Civ. Code § 8134 (progress), § 8138 (final)

California's unconditional form must carry a notice that it "is enforceable against you if you sign it, even if you have not been paid" (Cal. Civ. Code § 8134); the conditional form is effective only on the claimant's receipt of payment from the bank the check is drawn on (§ 8132). In Texas, "a person may not require a claimant or potential claimant to execute an unconditional waiver and release" for an amount unless that amount was received in good and sufficient funds (Tex. Prop. Code § 53.283).

An example in one pay period

A sub bills $45,505.00 for September. It sends a conditional progress waiver for $45,505.00 through September 30 with the pay app. When the GC's check clears in October, it signs an unconditional progress waiver for the same amount, which many GCs require before releasing the next payment. Walk-through: how to fill out a conditional lien waiver.

How it works in Conflo

On Conflo's pay applications, the GC cannot release a sub's payment until two waivers are recorded: the conditional waiver for this period and the unconditional waiver for the sub's last payment, which can only be added once that payment is recorded. Compliance tracks all four types (conditional or unconditional, progress or final). Conflo does not generate your state's statutory form.

The same pay app as the electrical subcontractor sees it in Conflo: waiting on the GC, the payment steps, what is holding payment, the application summary and the schedule of values with this period, stored and to-date amounts. — A sub's pay app in Conflo, showing what is holding payment, including missing lien waivers.

The bottom line

Conditional means "once I'm paid"; unconditional means "I have been paid." Never sign the second before the money clears.

Learn your state's forms, and read the related mechanic's lien deadlines so a waiver never gives up more than you were paid for.

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Sources

California Civil Code § 8132 — California Legislative Information. Read October 17, 2026.
California Civil Code § 8134 — California Legislative Information. Read October 17, 2026.
Texas Property Code Chapter 53, Subchapter L — Texas Legislature. Read October 16, 2026.

Questions

Which is safer to sign, a conditional or unconditional lien waiver?

A conditional waiver, because it releases rights only once the stated payment is received. An unconditional waiver releases them on signature, so sign it only after payment has cleared.

Can a GC require an unconditional waiver before paying?

Practice varies, but some states forbid it. Texas Property Code § 53.283 bars requiring an unconditional waiver unless the claimant has received that payment in good and sufficient funds. Check your state's law.

What is the difference between a progress and a final waiver?

A progress waiver covers work through a date and keeps exceptions such as retention and unpaid extras. A final waiver covers all work on the job, apart from disputed claims it lists.