Lien waiver: conditional vs unconditional, and when to sign

A lien waiver is the document a contractor, subcontractor or supplier signs to give up its lien rights on a property, in exchange for being paid. Lien rights are your safety net on a construction job: if you aren't paid, you can put a claim against the property itself. A waiver says you've been paid for some or all of the work, so you won't. That trade is fair only when the money is really yours.

The problem shows up on payday. The general contractor or owner wants your waiver before releasing the draw, the homeowner wants to pay the final invoice by card, and you're asked to sign a form that says "paid" when all you have is an approval code or a pending ACH transfer. This guide explains how lien waivers work, the difference between conditional and unconditional waivers, how progress and final waivers differ, which states write the forms for you, and how to time your signature against a card or ACH payment. Statutes cited were checked on October 15, 2026.

What is a lien waiver?

It's a receipt with legal teeth. A lien waiver (also called a lien release, or a waiver and release) is a signed statement that you've been paid, or will be paid, a stated amount for work through a stated date, and that you release your lien rights for that work in return. Owners and lenders collect them so nobody can come back later and put a claim on the property for work that was already paid for.

On a typical job, waivers flow up the chain. Each sub and supplier gives one to the general contractor with each pay application, and the general contractor gives its own, plus the subs', to the owner or the construction lender. Our guide to progress billing shows where those waivers sit in a monthly pay application, alongside the G702, the schedule of values and retainage.

Two questions decide which waiver you sign:

1. Has the money arrived, or is it still on its way? That's conditional vs unconditional.
2. Is this payment one stage of the job, or the last one? That's progress vs final.

Conditional vs unconditional lien waiver: what's the difference?

A conditional lien waiver releases your rights only if, and when, the stated payment actually reaches you. An unconditional lien waiver releases them the moment you sign, whether or not you've been paid. One protects you while money is in transit; the other assumes it has landed.

California's statutory forms put the risk in capital letters. The conditional progress form warns that a person should not rely on the document unless satisfied that the claimant has received payment (Cal. Civ. Code 8132), and the unconditional progress form tells the signer to use a conditional waiver instead if they have not been paid (Cal. Civ. Code 8134).

A common pattern on commercial jobs: you give a conditional waiver with this month's pay application, and the owner asks for an unconditional waiver for last month's payment, which by now has cleared. Each waiver then matches what you've actually received.

Progress vs final lien waivers

Progress waivers cover a slice of the job: work through a stated date, for a stated amount. Final waivers cover everything, and they end your lien rights on the project. Put the two questions together and you get four waivers, which is exactly how California's Civil Code organizes its forms:

Progress waivers have a feature final ones don't: an exceptions list. California's conditional progress form leaves room to exclude retentions, extras you haven't been paid for, and earlier progress payments you conditionally waived but never received (Cal. Civ. Code 8132). Fill those in. Retainage you haven't collected and an unsigned change order are exactly the amounts a careless waiver gives away.

Treat the final unconditional waiver as the most dangerous paper on the job. California's form for it warns that it is enforceable against the signer even if the signer has not been paid (Cal. Civ. Code 8138). Once it's signed, your lien rights on that project are gone.

Which states prescribe a lien waiver form?

Several states write the waiver forms into statute, and in those states the wording isn't up for negotiation. Two large examples:

• California sets out all four forms in Civil Code sections 8132 to 8138. Where a claimant has to sign a progress waiver to get paid and isn't in fact paid, or gets a single or joint payee check, the waiver doesn't hold unless it substantially follows the statutory form (Cal. Civ. Code 8132). The conditional progress form also says it takes effect only when the claimant receives payment from the financial institution the check is drawn on.
• Texas has its forms in Property Code section 53.284. When the legislature created them in 2011 with SB 1332, the Senate committee's bill analysis said a waiver would be unenforceable unless it substantially complied with the applicable form, and that the aim was one set of forms so that payment delays and fights over whose forms to use would be avoided (Texas Legislature, SB 1332 bill analysis). Read the current text of section 53.284 on the Texas Legislature's statutes site before you rely on any copy you're handed.

Other states have statutory forms too, and many have none, in which case the waiver is whatever the parties sign. If your state has a form, use it word for word and fill in only the blanks. If it doesn't, read every waiver you're handed as carefully as a contract, because that's what it is. For anything beyond the basics, such as a waiver that also releases claims for delays or extra work, have a construction lawyer in your state look at it.

When has a card or ACH payment actually settled?

Later than most people think. The statutory forms were written around paper checks, and California's conditional form ties its effect to the bank paying the check. Electronic payments have their own version of "the check cleared," and it isn't the moment the customer taps a card or clicks pay.

Card payments

A card payment goes through three steps before it's spendable:

1. Authorization: the issuer approves the charge. Nothing has moved yet.
2. Settlement: your batch is sent for clearing, usually at the end of the day.
3. Funding: your processor deposits the money in your bank account. According to the OCC's handbook for bank examiners, acquiring banks usually fund merchants by ACH credit to their deposit accounts (OCC).

Only step 3 means you've been paid. An approval code on the reader is a promise, and an unconditional waiver signed on that promise gives away your lien rights before the money exists in your account. Our guide to batch settlement explains why a payment you ran on Friday can land on Monday or later.

Even after funding, a card payment can come back as a chargeback. Mastercard's chargeback guide lets some disputes over services be filed within 120 calendar days from when the services ended, up to 540 days in all (Mastercard). That's not a reason to refuse cards. It is a reason to keep signed change orders, photos and the customer's sign-off together, so you can win the dispute without needing the lien you waived.

ACH payments

ACH settles faster than most people expect, but a debit can still be undone. Nacha says ACH debits settle the same day or the next banking day (Nacha). After that, most returns arrive within Nacha's standard two-day timeframe (Nacha). A homeowner who says a debit from their personal account was unauthorized has up to 60 days to return it (Nacha), while the same claim on a business account has to come back within 2 banking days (Nacha).

An ACH credit, the kind a general contractor's payables team pushes to you, is steadier, because the payer started it. Nacha lets the sender reverse a credit only for specific errors (a duplicate, the wrong receiver or the wrong amount), and the reversal has to reach your bank within five banking days after the original settled (Nacha). Our guide to ACH return codes covers what each return means if one does arrive.

The rule we'd follow

Don't sign an unconditional waiver until the money shows as deposited in your bank account, not pending, not authorized, not "sent." Until then, sign the conditional version. If you're collecting an ACH debit from a commercial customer, waiting the extra two banking days for the return window is cheap insurance. If a homeowner pays by debit, know that the 60-day window outlasts any waiver you sign.

A worked example: a progress draw paid by card

This example is made up, and so are its numbers. A roofing contractor in Sacramento is two-thirds through a $27,600 reroof for a homeowner whose lender wants a waiver with every draw. The second draw is $9,200.

Had the contractor signed the unconditional form on Thursday night and the payment then failed, the lien rights for $9,200 of finished roofing would have been gone, with nothing in the bank to show for them. Four days of patience cost nothing.

Processing costs are a separate question. The waiver states the payment amount; what you net after fees is between you and your processor. Our guide to credit card processing for contractors covers taking payments on site versus by link, and what each costs.

What goes on a lien waiver form?

If your state prescribes a form, use its exact text. Where you fill one in yourself, or check one a customer sends you, a complete lien waiver form usually has these fields:

• The type of waiver in the title: conditional or unconditional, progress or final
• Your business name as the claimant, and the name of the customer who hired you
• The job location and the property owner's name
• The through date: the last day of work the waiver covers (progress waivers)
• The payment amount, and for a conditional waiver, how it's being paid
• For a check: who wrote it, who it's payable to, and the amount
• Exceptions: retainage, unpaid extras, disputed claims and earlier unpaid amounts
• Your signature, title and the date

Read it against your own records before you sign. The amount should match the payment, the through date should match the pay period, and the exceptions should list anything you're still owed.

How should you run lien waivers alongside payments?

Build the waiver into your payment process so nobody signs on a guess:

1. Send a conditional waiver with every invoice or pay application, never an unconditional one.
2. Have one person check the bank account, not the card terminal or the payment portal, before any unconditional waiver goes out.
3. Track waivers by job: which conditional waivers are outstanding, and which payments they cover.
4. For ACH debits, note the settlement date and send the unconditional waiver after the return window you're comfortable with.
5. List retainage and unpaid change orders as exceptions on every progress waiver until they're paid.
6. Keep the waiver, the invoice, the payment record and the deposit together, the same file you'd use for a dispute.

The payment side is where we come in. Clearo's virtual terminal sends invoices and payment links so homeowners pay by card from their phone, our mobile payments options take a tap or a card on site, and Clearo offers ACH payment processing for larger draws, priced by quote, and Clearo says ACH payments usually fund the next business day. Our page on payments for home services businesses shows how those fit together for contractors.

Common lien waiver mistakes

• Signing an unconditional waiver because the card was approved or the customer says the ACH was sent.
• Using a final waiver for a progress payment, which releases the whole job.
• Leaving the exceptions blank while retainage or a change order is still unpaid.
• Signing a customer's homemade waiver in a state that prescribes the form, or one that slips in a release of other claims.
• Letting a sub's waivers lag behind its payments, so the owner holds your draw.
• Losing track of which conditional waivers turned into real money.

Next step

Lien waivers protect you only when the payment behind them is real, so the payment setup matters as much as the paperwork. If you already take cards, send us a recent merchant statement for a free statement review, and we'll show you what each payment costs and how your funding schedule works. If you're setting up card, payment link or ACH collection for your next job, contact us.