Missouri lien waiver requirements
Missouri supports all four payment-stage choices on ordinary private commercial work, covered residential work, and owner-occupied repair, remodel, or addition work when the claimant has lien rights: Conditional Partial, Unconditional Partial, Conditional Final, and Unconditional Final. RSMo §429.005 makes a waiver exchanged for the award of a contract or subcontract unenforceable, while permitting lien subordination or release and contract clauses requiring waivers as a payment condition.
What Missouri actually changes
At a glance
- Prescribed form: No universal four-form set; §429.016.27 prescribes the covered-residential unconditional-final form, and §429.032 supplies a filed multi-parcel partial-release form.
- Advance waiver: Unenforceable when exchanged in anticipation of and as consideration for awarding the contract/subcontract; later waivers may be required as a payment condition.
- Payment/effect: Covered-residential short payments do not trigger an ordinary waiver under §429.016.25; a compliant unconditional-final waiver can bind despite nonpayment and preserves nonlien claims.
- Signature/notary: The §429.016 final form needs specified signer/contact data and adjacent date but no notary; §429.032’s recorded partial release is notarized.
- Timing: A paid-in-full claimant with a recorded Notice of Rights has five calendar days after written request; filed-lien satisfaction refusal carries a separate ten-day rule.
- Public/private: A qualifying §107.170 bond precludes subcontractor/supplier mechanic’s liens; use a bond-rights release, not the private-property form.
- SubLien status: All four private payment stages are live; only Unconditional Final branches to the covered-residential prescribed form. Public, bond, and filed-lien processes remain outside this lane.
Detailed state rules and primary sources
State-specific workflow notes
Missouri supports all four payment-stage choices on ordinary private commercial work, covered residential work, and owner-occupied repair, remodel, or addition work when the claimant has lien rights: Conditional Partial, Unconditional Partial, Conditional Final, and Unconditional Final. RSMo §429.005 makes a waiver exchanged for the award of a contract or subcontract unenforceable, while permitting lien subordination or release and contract clauses requiring waivers as a payment condition.
For residential real property covered by §429.016, subsection 25 expressly recognizes partial or full and conditional or unconditional waivers. Only the covered-residential Unconditional Final must substantially follow the prescribed subsection 27 form. It calls for the claimant's address and the property's legal description and reaches earlier work plus specified later remedial or additional work under existing agreements. The other three covered-residential stages use SubLien's lean authored forms. Owner-occupied repair, remodel, or addition work is not categorically blocked; its lien-eligibility rules remain separate.
SubLien therefore asks for a Missouri project-route choice only when Unconditional Final is selected, because that is the only choice that can change the document. The other three types use the same authored private-payment form without extra classification. Conditional forms wait for actual receipt; unconditional forms are for payments already received. No separate receipt confirmation or proof upload is added. Public work, bond claims, and already-filed lien releases remain separate workflows.
How SubLien handles it now
SubLien offers all four payment-stage choices for its supported Missouri private-project routes. Only Unconditional Final asks whether the project is ordinary private work or residential property covered by RSMo §429.016, because only that choice changes the document. Covered-residential Unconditional Final uses the prescribed form and its legal-description and claimant-contact fields; the other choices use lean SubLien-authored forms. Public work, bond claims, and already-filed lien releases remain separate.
Rules that change the workflow
Which Missouri route applies
| Transaction | Governing route | Prescribed payment-stage form? | Operational consequence |
|---|---|---|---|
| Ordinary private commercial draw | §429.005 plus ordinary agreement law | None located in the official statutes reviewed | Use a narrowly scoped, counsel-approved payment-stage waiver; do not call it statutory. |
| Residential real property within §429.016 | §429.016.1–.31 | Yes, for unconditional final only | Use the prescribed substantial form and its legal-description/signature data; apply the short-payment and five-day rules. |
| Repair/remodel/addition to owner-occupied residential property of four units or fewer | §429.013 and other Chapter 429 provisions; expressly excluded from §429.016 | No §429.016 form | Track the separately signed owner consent and full-payment defense; do not route to the §429.016 form merely because the project is residential. |
| Public work with a qualifying bond | §§107.170 and 522.300 | No Chapter 429 payment-stage waiver form | Use a separately reviewed bond-claim release. Do not send a private-property lien waiver as the closeout instrument. |
| One filed lien covering multiple parcels | §429.032 | Statutory sufficient partial-release form | Identify the filed lien, original/satisfied debt, released parcels, legal descriptions, authorized signature, acknowledgment, and circuit-clerk filing. |
| Other paid/satisfied filed lien | §§429.120–.130 | No form text in those sections | File the satisfaction acknowledgment when required; track payment, request, and ten days. |
Prescribed-form and advance-waiver rules
- Section 429.005.1 is narrow: it invalidates an original contractor’s, subcontractor’s, supplier’s, or laborer’s Chapter 429 waiver when the agreement is made in anticipation of and as consideration for awarding the contract or subcontract. It does not prohibit lien subordination or release.
- Section 429.005.2 does not prohibit a contract clause requiring waivers as a condition of payment. That savings clause does not itself validate a defective form, establish payment, or select the correct project route.
- Section 429.016 applies to defined residential real property, including dwellings of four units or fewer and solely residential condominiums, townhouses, or cooperatives regardless of unit count. It excludes mixed-use/PUD areas unless the residential use is on a separate identifiable parcel, and it excludes the owner-occupied repair/remodel/addition class governed by §429.013.
- Section 429.016.27 says the covered-residential unconditional-final waiver is valid only on a form substantially following
UNCONDITIONAL FINAL LIEN WAIVER FOR RESIDENTIAL REAL PROPERTY. No comparable statutory text is supplied there for the other three payment-stage variants. - Section 429.032’s filed-lien form is not a fifth draw waiver. It is an acknowledgment sufficient for releasing one or more parcels from one already-filed multi-parcel lien and contains individual and corporate notarial blocks.
Payment and effectiveness
- A §429.016 claimant may use a partial or full, conditional or unconditional waiver. If the payment is less than the amount claimed due at that time, however, §429.016.25 prevents the waiver/release effect unless the instrument is a compliant unconditional-final waiver.
- A compliant covered-residential unconditional-final waiver is complete and absolute as to mechanic’s-lien rights on the described property. It reaches work before signing and later remedial/additional work performed under initial or supplemental agreements executed by the same parties before signing.
- Less than full consideration does not preserve those residential lien rights once the claimant signs a compliant unconditional-final waiver, although §429.016.28 preserves other claims, remedies, and causes of action. Section 429.016.29 makes the lien waiver enforceable despite failure to receive promised payment or consideration.
- Outside §429.016’s covered-residential class, the official statutes reviewed do not supply one universal payment-clearance rule for an ordinary commercial waiver. The safe product posture is a precisely identified conditional release before final collection and a matching unconditional acknowledgment only after collection, without presenting that risk control as statutory Missouri text.
Signature, notary, electronic execution, and timing
- Section 429.016.27’s prescribed waiver has a claimant signature but no witness or notarial certificate. The signing date must be immediately adjacent to the signature. The claimant’s legal name and the signer’s name, title/position, address, and telephone must be typed or legibly printed immediately above or below it.
- Do not import the notary requirement from §429.016’s separate Notice of Rights. That recorded notice is signed and notarized; the unconditional-final waiver is not.
- Section 429.032’s recorded multi-parcel partial release does include a notarial acknowledgment. Sections 429.120–.130 separately address satisfaction of a filed lien.
- Missouri UETA recognizes agreed electronic records/signatures, requires attribution to the signer’s act, and permits electronic satisfaction of a notarial act when the authorized officer’s electronic signature and required information are attached or logically associated. Recorder/circuit-clerk submission rules still require confirmation.
- Section 429.016.30’s five-calendar-day clock starts only when the claimant recorded a Notice of Rights, has been paid in full, and receives a written request. Section 429.130 uses ten days after payment and request for refusal to enter satisfaction of a filed lien.
- Section 429.080 generally requires a verified lien account within six months after the indebtedness accrues; the Notice of Rights does not extend that deadline.
Current rendered-form audit
| Selection | Current SubLien document | KISS fields and effect |
|---|---|---|
| Conditional Partial | Authored Missouri progress form | Amount, payer, and Through Date; waits for the identified payment; keeps retainage, later work, changes, and signer exceptions outside scope. |
| Unconditional Partial | Authored Missouri progress form | Amount and Through Date; direct paid-stage release with no payer, receipt checkbox, evidence record, or proof upload. |
| Conditional Final | Authored Missouri final form | Payer and final amount; closes the signing claimant's paid project account through signing only after the identified final payment condition is satisfied; no Through Date. |
| Unconditional Final — ordinary private | Authored Missouri final form | Final amount; closes the signing claimant's paid project account through signing; no route-specific statutory claims and no Through Date. |
| Unconditional Final — covered residential | §429.016.27 prescribed form | Legal description and claimant contact data; complete statutory residential final scope; no separate payment-receipt gate or proof workflow. |
KISS qualified-GC workflow
- Keep award-stage waiver language out of the contract-award exchange prohibited by §429.005.1.
- For Conditional Partial, Unconditional Partial, and Conditional Final, choose the stage and send the authored private-payment form without another Missouri classification question.
- For Unconditional Final, answer the one route question that changes the document. Covered residential property gets the §429.016.27 form; ordinary private work gets the authored final form.
- The product asks only for fields printed by the selected form. It does not add amount-claimed-due reconciliation, a receipt attestation, payment method, reference, date, or proof upload as a routine send gate.
- Keep public work, standalone bond releases, and already-filed lien releases outside this payment-stage lane.
Primary sources
- Missouri Revisor, Chapter 429 index — official chapter map; it lists §§429.005, 429.012, 429.013, 429.016, 429.032, 429.080, 429.120, and 429.130 and displayed a 2026-07-28 site timestamp when reviewed.
- RSMo §429.005 — contract-award waiver prohibition; lien subordination/release savings clause; waiver-as-payment-condition savings clause.
- RSMo §429.016 — covered-residential definition and exclusion; notice-of-rights system; partial/full and conditional/unconditional rules; short-payment rule; prescribed unconditional-final form; signature information; nonpayment effect; five-day delivery duty.
- RSMo §429.012 and §429.013 — original-contractor Notice to Owner, fraudulent-waiver penalty, and the separate owner-occupied residential consent/full-payment-defense regime.
- RSMo §429.032, §429.080, §429.120, and §429.130 — multi-parcel partial release, lien-filing deadline/oath, satisfaction acknowledgment, and ten-day refusal exposure.
- RSMo §107.170 and §522.300 — current public-work bond threshold/scope, 90-day remote-supplier notice, lien preclusion, and bond action.
- RSMo §§432.220, 432.230, 432.240, 432.250, and 432.255 — agreement to transact electronically, legal recognition, attribution, electronic notarization, and record retention.
- Missouri Senate, 2026 Truly Agreed to and Finally Passed report — official 2026 session currency check. Searches of the report found no reference to §§429.005, 429.016, 107.170, or mechanic’s liens. The Revisor states enacted sections are updated online on their effective dates. No relevant 2026 enacted change was located through the cutoff.
Source-by-source reference points
1. Award-stage boundary
Rule: Section 429.005.1 invalidates a Chapter 429 waiver made in anticipation of and as consideration for the contract/subcontract award; §429.005.2 permits contract provisions requiring later waivers as a payment condition.
Product point: Separate subcontract award language from draw-stage waiver requests.
Source: RSMo §429.005
2. Covered-residential form and effect
Rule: Sections 429.016.25–.29 govern short payment, complete-and-absolute scope, the substantial prescribed form, preservation of nonlien claims, and enforceability despite nonpayment.
Product point: For covered-residential Unconditional Final, capture the legal description and claimant/signing contact data printed by the prescribed form. Do not add an amount-claimed-due or receipt-proof gate to every Missouri send.
Source: RSMo §429.016.25–.29
3. Five-day residential closeout
Rule: A claimant that recorded a Notice of Rights, was paid in full, and receives a written request must provide the unconditional-final waiver within five calendar days.
Product point: This claimant duty is separate from ordinary form preparation. Do not turn it into a required field or extra step on every waiver.
Source: RSMo §429.016.30
4. Filed-lien release and satisfaction
Rule: Section 429.032 provides the multi-parcel partial-release acknowledgment and notarial blocks; §§429.120–.130 require satisfaction when applicable and impose ten-day refusal exposure after payment and request.
Product point: Keep this outside the ordinary payment-stage lane; never relabel an ordinary final draw waiver as a recorded release.
Source: RSMo §429.032; §429.120; §429.130
5. Public-work bond route
Rule: For covered public work over $50,000, §107.170 requires a payment bond subject to stated exceptions; a furnished bond precludes subcontractor/supplier liens, and remote suppliers have a 90-day notice rule.
Product point: Keep a standalone bond-rights release outside the private lien-waiver picker.
Source: RSMo §107.170; §522.300
6. Electronic execution
Rule: Missouri UETA supports agreed electronic records/signatures, attribution, retained originals, and an electronically performed notarial act with the authorized officer’s associated signature and required information.
Product point: Preserve the ordinary e-sign record for payment-stage forms. Recorder acceptance belongs only to a separate recorded-instrument workflow.
Source: RSMo §§432.220–.255
The four waivers, and what each one says
Two questions decide which one you are sending: has the money actually arrived, and does this cover the whole job or just this pay period? These are the descriptions the industry uses — what a specific Missouri document releases is a question for your counsel, on its own words.
Takes effect only when the stated payment is actually received. Covers work through a stated date or payment, and typically reserves retainage and later work.
States the release outright after payment. Same scope as the conditional partial — this pay period, not the whole job.
Same condition as above — effective on receipt of the stated payment — but scoped to the job through completion rather than to one period.
The release stated outright after final payment, for the job through completion. This is the one that is expensive to sign early, which is why the order it goes out in matters.
Where they land in a pay cycle
This is how the paperwork tends to move, not a rule about Missouri. What your subcontracts require, and when, is your organization’s decision with counsel.
- 1Sub bills you
The pay application arrives for the period.
- 2Conditional goes out
Requested with or ahead of the payment.
- 3You pay
The payment is sent and the money arrives.
- 4Unconditional follows
Requested once the money has actually landed.
Final payment repeats the pattern at the end of the job. The step that goes wrong in practice is the fourth one: the conditional went out, the money arrived, and nobody went back for the unconditional.
Missouri’s mechanics’ and construction lien provisions are at Mo. Rev. Stat. Chapter 429 (Statutory Liens Against Real Estate), §§ 429.005–429.630.
Read it on revisor.mo.govConditional Partial · Unconditional Partial · Conditional Final · Unconditional Final
Open the configured Missouri specimen
General conditional-progress template for Missouri review
Missouri lien waiver questions
Does Missouri require a lien-waiver form?
Sometimes. Missouri has no universal four-form set and §429.005 itself supplies no form. Section 429.016.27 does prescribe a substantial unconditional-final form for its covered residential real property. Section 429.032 separately supplies a sufficient notarized partial-release form for an already-filed lien covering multiple parcels. The project and transaction must be classified before answering.
Can a Missouri subcontract require an advance waiver?
Not as consideration for awarding the contract or subcontract: §429.005.1 makes that agreement unenforceable. Section 429.005.2 does not prohibit a clause requiring payment-stage waivers as a condition of payment. Keep the waiver out of award consideration and tie each later request to an identified draw and performed work.
Must payment clear before a Missouri waiver is effective?
There is no single answer for every project. A product-authored conditional waiver can make final collection its express trigger. For §429.016 covered residential property, payment below the amount claimed due does not create an ordinary waiver/release, while a compliant unconditional-final waiver can bind mechanic’s-lien rights despite failure to receive promised payment. Do not use a generic cleared-funds rule as a description of that statutory final form.
Must a Missouri lien waiver be notarized, and may it be electronic?
The §429.016.27 unconditional-final form has no notarial block. Its separate Notice of Rights does, and §429.032’s filed-lien partial release does. Missouri UETA generally supports agreed and attributable electronic signatures and electronic notarial acts. Confirm circuit-clerk/recorder submission requirements for recorded instruments; an ordinary SubLien email signature does not perform a notarial act.
Can the same Missouri form close private, public, and recorded-lien rights?
No. An ordinary private draw waiver addresses Chapter 429 property-lien rights. A qualifying §107.170 public-work bond creates a separate remedy and precludes subcontractor/supplier liens; the release should identify bond rights intentionally. An already-filed lien needs the §429.032 or §§429.120–.130 process. SubLien’s current scope notice preserves these rights, but it does not supply the separate instrument.
How does SubLien choose the Missouri waiver workflow?
Conditional Partial, Unconditional Partial, and Conditional Final use the same authored private-payment form without another route question. For Unconditional Final only, the user selects the ordinary-private or covered-residential route; the covered-residential route renders Missouri's prescribed form. SubLien adds no receipt confirmation or payment-proof upload.
Is the Missouri form on this page one I can use?
No. The Missouri document shown is a specimen with sample values, drawn from SubLien's reference as of 2026-08-31. It is not published by the state and is not a form to print, complete, or sign. The two samples this page offers on request are a different thing — plain conditional and unconditional waivers written by SubLien for review with your attorney; no state published them. Inside SubLien the current internally source-reviewed system template is filled from your project record; SubLien does not determine that a form is legally correct.