This article is general information, not legal advice. Lien laws vary by state; some states require specific statutory forms. Check your state’s rules or ask a construction attorney.
What a lien waiver does
When you’re paid on a construction project, the person paying you usually asks for a lien waiver: a document in which you give up your right to file a mechanics lien for the amount you’ve been paid. It protects the owner and the general contractor from paying twice.
Conditional vs. unconditional
- Conditional waiver: takes effect only when the payment actually clears. If the check bounces, your lien rights remain. This is the one to sign before you’ve been paid.
- Unconditional waiver: takes effect as soon as you sign it, whether or not you’ve been paid. Sign it only after the money is in your account.
Progress vs. final
- Progress waiver: covers work through a specific date or pay application. Your rights for later work remain.
- Final waiver: covers everything on the project. Use it only for the last payment, after retainage and approved change orders are settled.
Together that gives four common forms: conditional progress, unconditional progress, conditional final and unconditional final. California, for example, requires these four statutory forms.
A safe sequence for each payment
- Submit your pay application with a conditional progress waiver for the amount requested.
- When the payment clears, provide an unconditional progress waiver for that amount.
- For the last payment, use a conditional final waiver, then an unconditional final once paid in full.
Mistakes to avoid
- Signing an unconditional waiver “to speed things up” before payment clears
- Waiver amounts that don’t match the pay application
- Final waivers that accidentally cover unpaid change orders or retainage
- Losing track of which waivers you’ve received from your own subcontractors
Keeping it straight across projects
General contractors should collect waivers from every subcontractor and supplier for every payment, and check that amounts match. A system that compares each lien waiver with its pay application and flags mismatches catches problems before money changes hands.