In California, the rules surrounding lien waivers are strict. Under California Civil Code Section 8132-8138, a lien waiver is only valid if it matches the exact statutory language provided by the state. Using the wrong form, or modifying the text of the form, can invalidate the waiver, leaving your project vulnerable to mechanics liens and holding up draw requests.
The 4 Types of California Lien Waivers
California law provides four specific types of lien waivers. The correct form depends on two simple factors: whether you have been paid (Conditional vs. Unconditional) and whether the payment is for a portion of the work or the entire project (Progress vs. Final).
- Conditional Waiver on Progress Payment: Used when expecting a progress payment, but the check hasn't cleared yet. This is the safest and most common waiver for subcontractors to provide upfront along with their invoice.
- Unconditional Waiver on Progress Payment: Used only after a progress payment has fully cleared the bank. Signing this means you give up lien rights for that payment amount, regardless of whether you actually got the money.
- Conditional Waiver on Final Payment: Used when expecting the final payment for the project, but the money isn't securely in your account yet.
- Unconditional Waiver on Final Payment: The final sign-off. Used only when the final payment has cleared and the job is 100% complete.
⚠️ Warning: The Unconditional Trap
Never sign an Unconditional Waiver unless the money is physically in your bank account and has completely cleared. If a check bounces after you've signed an unconditional waiver, you have legally forfeited your right to file a mechanics lien to recover that money.
Stop Chasing Signatures Manually
Figuring out the right form is only half the battle. Printing, scanning, and emailing PDFs back and forth wastes hours of your week and delays payments. With CollectWaivers.com, you can select the correct California form, send a text message link to your sub, and get a legally-binding e-signature in under 30 seconds.