Invoicing & Payment

Lien waivers, in plain English

By DoneQuote Editorial · August 24, 2026 · 7 min read

At 4:40 on a Friday the GC's project coordinator emails you a PDF. Sign it and scan it back, she writes, and your draw goes out Monday. The header says Unconditional Waiver and Release. No check has been cut yet.

That is one way a contractor can give away a powerful collection tool: on a form nobody explained.

What you are actually trading

A mechanic's lien is the security behind your invoice. Filed correctly and on time, it attaches to the property itself, which turns you from someone who is owed money into someone with a claim on the building. That is why the owner and the construction lender care about it far more than they care about your invoice.

A lien waiver may release lien rights over a defined slice of the work. Its effect depends on its wording and state law, which is why a promise of payment is not the same thing as cleared funds.

Refusing outright rarely works, because the waiver usually is not the GC's idea. The lender releasing the draw wants documentation that nobody up or down the chain can still lien the property, so the GC collects waivers from every sub and supplier and passes them up with the payment application. Being slow with yours makes you the reason the draw is late. Signing the wrong one makes you the one carrying the risk.

The four forms you will be handed

FormReleases your rights whenNormally sent
Conditional waiver, progress paymentThe referenced payment is actually receivedWith each payment application
Unconditional waiver, progress paymentYou sign itAfter that draw's funds have cleared
Conditional waiver, final paymentFinal payment is actually receivedWith the final pay application or closeout package
Unconditional waiver, final paymentYou sign itAfter final payment, retainage included, has cleared

"Progress" and "final" are not just labels for where you are in the job. A progress waiver releases claims for work through a stated date. A final waiver typically releases everything on the project, retainage still being held and unapproved change orders included. Sign an unconditional final waiver while retainage is outstanding and you have given away the only leverage you had over money you are still owed.

Conditional means the money has to land

A conditional waiver is generally drafted to take effect only when the named payment is received. If the check never arrives or clears, confirm the form and state rule before assuming your rights survive. An unconditional waiver can take effect on signature, which is why you should not sign it on a promise of payment.

So "actually received" deserves a stricter reading than it gets. A deposited check is not a cleared check. The sequence that protects you on a progress draw is short:

  1. Send the conditional waiver with the payment application, for the amount you are asking for.
  2. Wait for the funds to clear your account, not just appear in it.
  3. Then send the unconditional waiver for that same draw.

Well-run draw packages already work this way: unconditional waivers for the payment previously received, conditional waivers for the payment being requested now. If a GC insists on unconditional up front, offering that split is the reasonable counter — and a conversation to have before the subcontract is signed rather than at 4:40 on a Friday.

The amount field and the through date

These two fields lose more money than the form type does. Take a drywall sub on an $86,000 subcontract, third draw:

LineAmount
Subcontract value$86,000
Billed through prior draws$41,000
This application, work through August 31$22,400
Retainage withheld on this draw (10%)$2,240
Net payment expected$20,160
Retainage withheld to date$6,340
Approved change order, not yet billed$3,850

The amount on the waiver is the payment it covers — $20,160 — not the subcontract value and not the billed-to-date figure.

The through date is August 31, the last day of work in that application. Sign on September 9 and write September 9, and you have released nine days of work you never invoiced. Forms often pre-fill the signature date into that field. Change it.

Retainage of $6,340 and the unbilled $3,850 change order belong in the exceptions or disputed-claims box. Left blank, a broadly drafted release can read as a statement that nothing is outstanding. Some statutory forms carve retainage out for you; plenty of GC-drafted forms do not. If the form has no exceptions field and you have open items, ask before signing, not after.

The waivers you collect from everyone below you

The exposure runs downhill too. An unpaid sub or supplier of yours can generally lien the owner's property even though the owner paid you, and your subcontract almost certainly makes clearing that your problem. So collect the same waivers, for the same draw, from every lower tier before you pass yours up — and write waiver delivery into their subcontract or purchase order as a condition of payment, exactly the way it is a condition of yours.

Where your state overrides the form in front of you

Some states prescribe statutory waiver forms. There, a waiver that does not follow the required form may be unenforceable. Never retype a form written for another state; obtain the current form and instructions for the project state.

Two traps worth asking about by name:

  • Waivers signed in advance. Some states void any waiver of lien rights signed before the work or before payment, which makes a no-lien clause in a subcontract unenforceable. Others allow it in limited cases. Do not assume either way.
  • Clocks inside the waiver. A state can put a deadline or follow-up step inside its waiver process. Confirm the current rule before relying on a form.

None of this touches your lien deadlines. Preliminary notice and filing deadlines run on their own clock, counted in days from a triggering event that differs by state and by tier. Signing or withholding a waiver does not pause them.

Keeping the numbers straight enough to sign fast

Waivers get filled in wrong less from ignorance of the form than from scattered numbers — the through date on a paper application, an open change order in an email thread, retainage in a spreadsheet. Keep the estimate, the approved change orders and what was billed through which date on one job record, and filling in a waiver becomes reading numbers off instead of reconstructing them. That is the part DoneQuote handles here: when the form lands, the through date you write is the date you actually billed through, and the exceptions you list are the items still genuinely open.

Two checks and one phone call

Before any waiver leaves your office: has the money for this draw cleared, or is it still a promise? A promise gets a conditional waiver, every time. And does the through date match the last day of work you billed, with retainage and open change orders written into the exceptions?

Then the phone call. Lien law is one of the few areas where the general shape of the rule is not enough — the required form, the notice steps and the deadlines are state-specific, and getting them wrong forfeits the security rather than the paperwork. Read your state's mechanic's lien statute, or spend an hour with a construction attorney licensed where the project sits. On a job with retainage outstanding, that hour costs less than the retainage.

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