What is the difference between a conditional and unconditional lien waiver in California?
Last reviewed July 5, 2026
A conditional lien waiver is valid only when payment is received. An unconditional lien waiver is effective immediately, regardless of whether payment has been made. Use the right type to protect your rights and ensure proper payment processing.
Key points
- Conditional waivers depend on payment being received.
- Unconditional waivers are effective immediately.
- Choose the correct waiver to protect lien rights.
- California has specific rules on waivers.
In California, lien waivers are used to confirm that a contractor or subcontractor has received payment. If you issue a conditional waiver, the payment must actually clear before it's valid. On the other hand, an unconditional waiver removes your lien rights immediately, even if payment hasn't been processed yet. Be careful with which one you sign or accept.
How Alloovium helps
Alloovium helps track lien waivers and compliance, ensuring you meet all requirements.
See how it worksRelated questions
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General information for US construction professionals — not legal advice. Lien deadlines, retainage caps and notice rules vary by state; verify with the state statute or a construction attorney.