Evidence-Based Payment Verification
Work claimed is work shown.
A payment claim should tell the story of what the project is paying for. PayLocker's evidence-based payment verification connects a construction payment claim to the photos, inspection certificates, delivery records and supporting documents that sit behind it — so the people reviewing, approving and releasing payment can see what the claim actually relates to.
PayLocker keeps construction money connected to the project.
Why payment claims need evidence
On most Australian projects, the claim and the proof of the work live in two different places.
A progress claim arrives as a figure on a document. The evidence that supports it — the site photos, the waterproofing certificate, the delivery docket, the email confirming a variation, the spreadsheet tracking percentage complete — sits somewhere else entirely. In a phone gallery. In a supervisor's inbox. In a shared drive nobody has opened since the frame stage.
None of this means anyone is acting improperly. It is a structural problem, not a behavioural one. The industry's payment systems were built to move documents and money; they were never built to hold a claim and its evidence together in one place.
The cost shows up as friction. Decisions that should take minutes take days, and the disagreements that follow are rarely about whether the work was worth paying for — they are about whether anyone can show what happened.
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01
The builder
A builder receives a claim and has to reconstruct the context around it before approving.
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02
The contractor
A contractor is asked, again, for the same photos they sent three weeks ago.
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03
The supplier
A supplier's invoice arrives without an obvious link to the delivery it relates to.
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04
The project
Decisions that should take minutes take days, and the disagreements that follow are rarely about whether the work was worth paying for.
A payment claim should tell the story of the work
PayLocker treats a claim as a connected record rather than an isolated number.
When those elements stay linked, the question "what is this payment actually for?" has an answer that does not depend on anyone's memory. The reviewer sees the claim alongside what it relates to. The claimant does not have to keep proving the same thing to different people. And the project retains a record of how each payment decision was reached.
This is what payment integrity means in practice. Construction payment is obligation flow, not simply cash flow — money leaving a project should stay connected to approved work, approved claims and approved obligations. Evidence is how that connection becomes visible.
What evidence can support a claim?
Evidence requirements depend on the project, the contract and the nature of the claim. PayLocker does not prescribe a fixed list. What it does is give the evidence somewhere to live.
Supporting material that can be attached to a claim includes:
Photos of completed work
Site images captured at the point the work was done.
Inspection certificates
Technical certification relevant to the claimed stage or trade.
Delivery records
Documentation connecting supplied materials to the project.
Supporting documents
The additional records the project's approval process calls for.
Other relevant project evidence
Anything the parties agree is material to the claim.
Requested where required
Claims can carry evidence, and builders can request supporting evidence where required.
Evidence requirements depend on the project and the claim.
The principle is simple: claims can carry evidence, and builders can request supporting evidence where required.
How evidence-based payment verification works
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01
Claim submitted
A contractor, subcontractor or supplier submits a claim or invoice against the project.
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Optional
Evidence attached where available
Photos, certificates, delivery records or other documents can be uploaded with the claim.
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Claim reviewed
The builder or reviewing party assesses the claim with its supporting material in view.
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If needed
Additional evidence requested if needed
Where more context is required, the reviewer can request it against the claim rather than chasing it by email.
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05
Commercial approval recorded
The claim is approved under the project's agreed process, and that decision is recorded as its own event.
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Payment release follows the agreed pathway
Release occurs through the project's structured payment pathway.
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The record remains
Evidence, requests and decisions stay associated with the claim and the project record.
Evidence should not become an administrative barrier
This is the part that matters most in the field, so it is worth stating plainly: evidence upload is optional at submission.
A contractor is not blocked from lodging a claim because a certificate has not come back yet or the site photos are still on a phone. The claim can be submitted, and supporting evidence can be requested afterwards if the project requires it.
The alternative — mandating a full evidence pack before a claim can even enter the system — would slow legitimate claims down and push people back to email, which is exactly the disconnection the platform exists to reduce. Evidence works best as context that accumulates around a claim, not as a gate in front of it.
Certification, approval and payment release are different decisions
Conflating these three is one of the most common sources of confusion on a construction project, and PayLocker records them separately.
Technical certification
- The question
- What technical work or progress has been certified, and by whom?
- Who decides
- This is a technical judgment made by a technical professional.
- What PayLocker records
- PayLocker records the technical decision.
Commercial approval
- The question
- Has the claim been approved under the project's agreed approval process?
- Who decides
- This is a contractual and commercial decision, and it is not made by the certifier.
- What PayLocker records
- PayLocker records the subsequent commercial approval.
Payment release
- The question
- Has the approved obligation been released through the project's payment pathway?
- Who decides
- This is a separate event again, recorded in its own right.
- What PayLocker records
- PayLocker records the payment event.
A certifier's technical decision is not an instruction to pay. PayLocker records the technical decision, records the subsequent commercial approval, and records the payment event — keeping the boundaries between roles clear rather than blurring them. PayLocker does not replace certifiers or building surveyors, and it does not perform certification.
From claim to payment: a connected record
Each step is linked to the one before it. That is what produces traceability: not a single document, but a chain in which the claim, the material supporting it, the approval that authorised it and the payment that followed can all be read together — during the project, at close-out, or whenever a question arises months later.
The supplier chain
For suppliers, the same chain answers a specific commercial question: what was supplied → what was invoiced → what was approved → what was paid. Where a purchase order or appointment applies, the invoice can be connected to it, and delivery evidence can sit alongside it.
- Project
- Appointment / scope
- Claim
- Evidence
- Approval
- Payment
- Project record
Example: a waterproofing claim
A waterproofing subcontractor completes their scope and submits a claim through PayLocker, attaching the relevant inspection certificate.
The certificate stays associated with the claim and the project record. The claim then moves through the project's agreed approval workflow — the certificate is evidence supporting the claim, not the approval itself. Once commercial approval is recorded, payment release follows the agreed pathway.
Twelve months later, if anyone asks what that payment was for, the record shows the claim, the certificate attached to it, who approved it and when payment was released.
- Claim type
- Waterproofing — completed scope
- Evidence attached
- Inspection certificate
- Technical certification
- Recorded
- Commercial approval
- Recorded
- Payment release
- Released via agreed pathway
- Project record
- Claim, certificate, approval and payment held together
Benefits by stakeholder
For builders
Greater confidence when reviewing claims, with the supporting context attached rather than scattered, and less back-and-forth to establish what a claim relates to.
For contractors and subcontractors
A clearer, more structured and more traceable way to support a claim, with visibility of claim status and a record that does not need rebuilding each time it is questioned.
For suppliers
A better connection between delivery, invoice, approval and payment, and easier reconciliation.
For certifiers and building professionals
Technical decisions recorded distinctly from commercial approval, with clearer role boundaries and less ambiguity about payment responsibility.
For financiers, developers and principals
Greater visibility into the evidence supporting the payment obligations a project is carrying.
What evidence-based payment verification does not do
Being clear about the limits is part of being credible about the capability.
What it does is narrower and more useful: it keeps the claim, the evidence, the approval and the payment connected, so decisions are made with better information and recorded properly.
PayLocker does not:
- verify that work has been performed simply because evidence is attached
- replace site inspection
- replace a certifier or building surveyor
- replace contractual approval rights or the construction contract
- guarantee that a claim will be paid
- make every claim automatically payable
- replace Security of Payment legislation or any statutory entitlement
- eliminate disputes
Why this matters for payment integrity
Payment integrity is not simply about moving money. It is about maintaining the connection between money, project activity, verified participants, claims, evidence, obligations, approvals and payment.
Evidence-based payment verification is the point in that chain where a claim stops being a number in an inbox and becomes something the project can understand and stand behind. It is one part of a broader approach — alongside progress-linked payments and structured payment pathways — through which PayLocker keeps construction money connected to the project.
Frequently asked questions
What is evidence-based payment verification?
Evidence-based payment verification is PayLocker's capability for connecting a construction payment claim to the supporting evidence behind it — photos, inspection certificates, delivery records and other documentation — so that the claim, the evidence, the approval and the payment remain part of one connected project record.
What evidence can be attached to a payment claim?
Photos of completed work, inspection certificates, delivery records and other supporting project documents. What is appropriate depends on the project, the contract and the nature of the claim.
Do I have to upload evidence with every claim?
No. Evidence upload is optional at submission. A claim can be submitted without evidence attached, and supporting evidence can be requested afterwards where the project requires it.
Can evidence be requested after a claim is submitted?
Yes. A builder or reviewing party can request supporting evidence after submission. The request and the material provided remain associated with the claim record.
Does PayLocker verify whether work was completed?
No. PayLocker does not inspect sites or verify physical work. It records the evidence provided, the approval decisions made and the payment events that follow, so those decisions are made with better supporting context.
Is a certifier's decision the same as payment approval?
No. Technical certification, commercial approval and payment release are three separate decisions, and PayLocker records them separately. A certifier's technical decision is not an instruction to pay.
What happens after a claim is approved?
Commercial approval is recorded as its own event, and payment release follows the project's agreed payment pathway. Both remain on the project record alongside the claim and its evidence.
Does attaching evidence guarantee payment?
No. Evidence supports a claim; it does not create an entitlement to payment. Approval and release remain subject to the project's agreed process, contractual rights and available project funding.
Does PayLocker replace a building certifier?
No. Certification remains the responsibility of the relevant technical professional. PayLocker records the certification decision separately from commercial approval and payment release.
Does PayLocker replace Security of Payment legislation?
No. PayLocker is a construction payment integrity platform that operates alongside statutory frameworks and the construction contract. It does not alter, replace or substitute for any statutory entitlement.
See evidence-based payment verification on your project
If you want to understand how evidence-based payment verification would work across your claims, approvals and payment pathway, our team can walk you through it against your project structure.