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Conditional vs. unconditional lien waivers

What each of the four types states, where each sits in a payment run, and the notices that 4 states print on the form itself. Which one fits your transaction is your decision.

By Sublien LLC · Updated October 2026 · 10 min read

In 20 seconds
Conditional
States it becomes effective only when the named payment arrives.
Unconditional
States the signer has already been paid.

On the forms SubLien's dated reference tracks.

What is a lien waiver?

A lien waiver is a document a contractor, subcontractor or supplier signs, usually in exchange for payment, giving up its right to file a mechanics lien for the amount and period it covers. Statutory forms often waive payment bond rights too: the Texas forms release both (Tex. Prop. Code §53.284). GCs usually collect one from each sub and supplier at every payment.

The four types

There are two questions, not four forms. Is the release conditioned on the payment arriving? And does it cover one payment cycle or the last one? Cross them and you get the four types SubLien records:

Conditional
Asked for before the payment goes out
Unconditional
Asked for once the payment has landed
Conditional Partial (Progress)
Unconditional Partial (Progress)
Conditional Final
Unconditional Final

Not every state prescribes all four. See states that break the pattern.

Progress forms differ in what they hold back. Several — Tex. Prop. Code §53.284(b)/(c) and A.R.S. §33-1008(D)(1)/(2) among them — reserve unpaid retention, pending modifications and changes, and other items furnished; California's §8132 form reaches rights based on fully executed written change orders unless listed as an exception. Read the one in front of you.

Where each one sits in a payment run

On monthly pay applications, a typical payment cycle runs these four steps:

  1. Pay app approved

    The sub bills for the period and the amount is agreed.

  2. Conditional partial

    Requested before the payment is sent, for that amount. It states that its release remains contingent until the identified payment is made.

  3. Payment arrives

    The identified payment is made in good and sufficient funds.

  4. Unconditional partial

    Requested for the same amount once the money has landed: the document that states the sub has been paid.

The last cycle uses the final pair; retainage usually rides on the final form.

What the states print on the form

Each quote is one state's prescribed notice as recorded in SubLien's dated reference, with its citation: a quotation, not a statement of general law and not a legal determination about your document.

  • Conditional · progress and final

    NOTICE: THIS DOCUMENT WAIVES THE CLAIMANT'S LIEN, STOP PAYMENT NOTICE, AND PAYMENT BOND RIGHTS EFFECTIVE ON RECEIPT OF PAYMENT. A PERSON SHOULD NOT RELY ON THIS DOCUMENT UNLESS SATISFIED THAT THE CLAIMANT HAS RECEIVED PAYMENT.

    Cal. Civ. Code §8132 (progress) and §8136 (final). The conditional notice is addressed to the recipient, not the signer.
    Unconditional · progress and final

    NOTICE TO CLAIMANT: THIS DOCUMENT WAIVES AND RELEASES LIEN, STOP PAYMENT NOTICE, AND PAYMENT BOND RIGHTS UNCONDITIONALLY AND STATES THAT YOU HAVE BEEN PAID FOR GIVING UP THOSE RIGHTS. THIS DOCUMENT IS ENFORCEABLE AGAINST YOU IF YOU SIGN IT, EVEN IF YOU HAVE NOT BEEN PAID. IF YOU HAVE NOT BEEN PAID, USE A CONDITIONAL WAIVER AND RELEASE FORM.

    Cal. Civ. Code §8134 (progress) and §8138 (final). Addressed to the signer, and the plainest statement of the distinction on this page.
  • Unconditional · progress and final

    NOTICE: This document waives rights unconditionally and states that you have been paid for giving up those rights. It is prohibited for a person to require you to sign this document if you have not been paid the payment amount set forth below. If you have not been paid, use a conditional release form.

    Tex. Prop. Code §53.284(c) (progress) and §53.284(e) (final). Texas aims its second sentence at the party requesting the waiver.
  • Unconditional · progress and final

    Notice: This document waives rights unconditionally and states that you have been paid for giving up those rights. This document is enforceable against you if you sign it, even if you have not been paid. If you have not been paid, use a conditional release form.

    A.R.S. §33-1008(D)(2) (progress) and (D)(4) (final). Prescribed for the two unconditional forms only, in type at least as large as the largest type otherwise on the document.
  • Unconditional · progress

    Notice: This document waives rights unconditionally and states that you have been paid for giving up those rights. This document is enforceable against you if you sign it to the extent of the Payment Amount or the amount received. If you have not been paid, use a conditional release form.

    NRS 108.2457(5)(b) — unconditional progress. Nevada writes two different unconditional notices; the progress one is bounded.
    Unconditional · final

    Notice: This document waives rights unconditionally and states that you have been paid for giving up those rights. This document is enforceable against you if you sign it, even if you have not been paid. If you have not been paid, use a conditional release form.

    NRS 108.2457(5)(d) — unconditional final. The final notice drops that bound.

What each document contains

Contents vary by state, and where a state prescribes the form its fields are the ones that matter. Across the forms SubLien's reference tracks, these recur:

Identifying information
Claimant, customer, owner, job location or property, job or contract number, and on progress forms the payment application the release is scoped to.
Payment condition or statement
On a conditional form, the identified payment condition; on an unconditional form, a statement that the signer has been paid.
Through date
On progress forms, the date after which nothing is covered.
Carve-outs
Retainage, pending change orders, disputed claims. Some schemes carve these out in prose; others print a line for the claimant to state an amount. Massachusetts itemises all three as schedule lines that its clause carves out only “as stated above.”
Payment warranty
Most prescribed forms have the signer warrant they have paid, or will use the payment to pay, their own laborers and suppliers.
Signature block
The signer's signature; in 2 of the states SubLien tracks, also a notarial certificate completed by a notary rather than by either party (which states, and where a witness is needed instead).

States that break the four-type pattern

SubLien's reference, compiled 2026-10-04, flags 17 states where a statute prescribes the waiver form or sets rules the waiver must follow. In 4 of them, not all four types have a form behind them: SubLien does not record a waiver under a type its reference says the state does not prescribe, and it cites the statute when it declines.

  • No unconditional form

    O.C.G.A. §44-14-366(d)-(e) prescribes a progress form and a final form, each conditioned on payment on its face, and no unconditional form.

  • Some types unsupported

    M.G.L. c.254 §32 supplies no supported unconditional partial, conditional final or unconditional final form, so SubLien does not record one there.

  • No unconditional form

    Miss. Code §85-7-433(1)-(2) prescribes a progress form and a final form, each conditioned on payment on its face, and no unconditional form.

  • One paid-to-date form

    Wyo. Stat. §29-10-101(b) prescribes one lien waiver body acknowledging payment received to date. SubLien offers that body as Paid Progress and Paid Final and declines both conditional labels. The completed retainage and unpaid-amount blanks—not a second form face—carry the transaction-specific reservations.

Who fills in which blank

A prescribed form has three kinds of blank, and confusing them is a real hazard:

  • Sender

    Your blanks

    Anything whose sentence identifies the transaction: parties, owner, job location, property, contract or job number, payment application number, period, amount and the instrument tendered. SubLien merges these from your project record before the document is sent.

  • Signer

    The claimant's blanks

    Anything the claimant states about their own claims, or about what they are not releasing — disputed claims for extras, prior conditional waivers that went unpaid, retainage reserved. On the Cal. Civ. Code §8136/§8138 and A.R.S. §33-1008(D)(3)/(4) forms the exceptions line is itself a claimant statement, which is why SubLien never prefills one.

  • Third person

    The notary's or witness's

    Witness lines, jurats, acknowledgments and every notary name, commission and seal are completed by a third person. They stay ruled lines for that person to fill in.

How SubLien handles it

What SubLien does
  • Presents its current template for the project state and type, and fills the sender-side fields from your project record.
  • Records the exact template version and hash, and sends a signing link the sub opens from their phone — no account needed.
  • Where the prescribed form carries a notarial certificate or a witness line, there is no typed signature: the sub signs on paper before a notary or a witness and the completed document comes back as an upload for your team to review.
  • Keeps the signed PDF, consent and signing events, hashes and audit trail together on the record.
What it doesn't do

Decide. SubLien does not determine that a form is legally correct, sufficient, valid or enforceable, or that you should release a payment. Those decisions are yours.

Free lien waiver forms

Every state page in the requirements guide has a free PDF of blank lien waiver forms for that state: the statutory text where the state prescribes the form (for Texas, SubLien's payment-neutral adaptation of the statutory forms), otherwise SubLien's own template for that state. Pick the state where the project is.

Have your legal counsel review the form before you use it. SubLien doesn't give legal advice, and the form is not a substitute for the advice of an attorney. Review the form against the applicable requirements and your project facts before use. SubLien is not a law firm and does not determine that a form is correct, sufficient, or enforceable for your transaction.

Common questions

What is a lien waiver?

A lien waiver is a document a contractor, subcontractor or supplier signs, usually in exchange for payment, giving up its right to file a mechanics lien for the amount and period it covers. A lien release is different: it clears a lien that has already been claimed or recorded, once the debt behind it is paid.

What is the difference between a conditional and an unconditional lien waiver?

A conditional waiver states that its release takes effect only when the payment it names actually arrives. An unconditional waiver states that the signer has already been paid and should follow that payment. SubLien records the type and the source document; it does not determine the legal effect of either.

Should a subcontractor sign an unconditional lien waiver before being paid?

That is not SubLien's call, and this page is not a legal determination. What SubLien's dated reference records, compiled 2026-10-04, is that the unconditional forms prescribed in California, Texas, Arizona and Nevada each print a notice instructing the signer to use a conditional release form if they have not been paid — and the Texas notice adds that it is prohibited to require the signer to sign it unpaid. Read the notice on the actual form. SubLien doesn't give legal advice.

When does a conditional lien waiver become effective?

On the terms the document itself states. A signature records agreement to the payment condition; it does not state that payment has already happened. Read the exact current form for the project state before use.

What is the difference between a partial (progress) waiver and a final waiver?

A partial or progress waiver covers one payment cycle — scoped to a payment application or to work furnished through a stated date; a final waiver covers the final payment. Several prescribed progress forms, among them Tex. Prop. Code §53.284(b)/(c) and A.R.S. §33-1008(D)(1)/(2), reserve unpaid retention, pending modifications and changes, and other items furnished; what each form reserves differs, so read the one in front of you. Crossing that axis with conditional and unconditional gives the four types SubLien records.

Do all states prescribe a specific lien waiver form?

No. SubLien's reference, compiled 2026-10-04, flags 17 states where a statute prescribes the waiver form or sets rules the waiver must follow. In 9 more, SubLien wrote its own state template, reviewed against the state's own sources; elsewhere SubLien offers a general template for your organization to review. The absence of a flag is not a determination that a general form is appropriate, and statutes change — check the current rules for your project.

Who fills in the disputed-claims blank on a lien waiver?

The claimant who signs, not the party sending. SubLien treats a blank as the signer's whenever its sentence states the claimant's own claims or what the claimant is not releasing, and it never prefills or guesses at one — a prefilled reservation would assert the claimant's claim on the claimant's behalf.

This guide is general information, not legal advice, and may not reflect the most recent changes to the law. Statutory lien-waiver and insurance requirements change — check the current rules for your project and jurisdiction. Nothing here is a legal determination that a form or workflow is correct for a project; your organization is responsible for selecting the form and workflow.

Knowing which form to send is the easy half. Going back for the second one is the half that slips.

SubLien prepares each waiver from your project record, sends the signing link and the reminders, and keeps the signed PDF with its evidence on the vendor record, next to the sub’s COI, W-9 and documents.