What is a stage payment?

A stage payment is a pre-agreed instalment paid at defined points during a building or renovation project. It breaks the total contract price into portions tied to observable works—for example, slab completion, frame erected, lock-up and practical completion. Stage payments are used to match cashflow to work performed, reduce financing costs and provide owners with checkpoints to verify progress before releasing funds. In building contracts these payments are often documented as part of the payment schedule and are triggered by a combination of builder's progress claims, inspection certificates and (where applicable) lender drawdowns.

Stage payment vs progress payment vs milestone payment

The terms are related but not identical:

• Stage payment: A scheduled instalment tied to clearly defined construction stages (e.g., slab, frame). Usually set out in the contract as a percent of the contract sum.
• Progress payment / progress claim: The builder's invoice seeking payment for work completed to date. A progress claim may request the stage payment amount or a certified sum based on measured work.
• Milestone payment: A broader term that can refer to any payment linked to a milestone (could be a stage, delivery, or approval). In practice it overlaps with stage payments.

Understanding the distinction helps you interpret your contract: stage payments are scheduling tools; progress claims are the invoices that trigger those scheduled payments.

How stage payments work in a building contract

The mechanics of stage payments typically follow this workflow:

1. Contract schedule: The contract sets the stage names and percentage splits (e.g., Deposit 5%, Slab 15%, Frame 20%).
2. Work completes: The builder notifies you that a stage is complete and submits a progress claim or invoice.
3. Evidence and inspection: You, your contract administrator or an independent certifier inspects work (or receives photographic evidence). Lenders often require their own inspection for drawdowns.
4. Certification: Where the contract requires, a contract administrator, certifier or architect issues a payment certificate confirming the stage is complete and stating the amount payable.
5. Payment timing: The contract will specify payment timing (e.g., within 7–14 days of receipt of the progress claim or certification). The builder usually issues a tax invoice and you make the payment.
6. Lender drawdown: If you have a construction loan, the lender releases the corresponding funds to you or directly to the builder upon receipt of the lender's inspector's report.
7. Retention & defects: A retention amount may be withheld until practical completion or defects rectified.

Key documents you should expect with each claim:

• Builder's progress claim / tax invoice
• Photos showing the completed stage
• Certifier or contract administrator's certificate (if required)
• Lender inspection report for drawdown
• Copies of subcontractor invoices only where requested by contract or lender

For more on reading a payment schedule in a building contract, see the Construction contract guide.

Typical stages and common payment splits

Below is a standard 6–8 stage breakdown with common percentage ranges. These ranges are illustrative—the final split must be contract-specific and agreed in writing.

Percentage ranges vary by builder, contract size and project type (e.g., renovations vs new builds). Some contracts include intermediate stages (e.g., roof, external cladding) or add a builder-specific "mobilisation" fee. Deposits above common ranges (e.g., >10%) can increase owner risk and may be constrained by state consumer protection guidance.

Example: On a $100,000 contract, a 10% deposit = $10,000; a 20% slab stage = $100,000 (all amounts in AUD and illustrative).

Who certifies and authorises stage payments?

Multiple roles can be involved; responsibilities should be clear in the contract:

• Builder: Submits the progress claim and supporting evidence.
• Owner: Approves payment if satisfied, or requests inspection/clarification.
• Contract administrator / superintendent / architect: Often appointed to certify stages and issue payment certificates under the contract.
• Certifier / building surveyor: Provides statutory inspections (e.g., foundation/occupancy) but may not certify payments unless specified.
• Lender: For construction loans, the lender authorises drawdowns after receipt of their inspector's report; they may require specific supporting documents.

If the contract names a superintendent or contract administrator, their certificate often determines the amount payable unless disputed.

Legal protections and obligations

Your statutory and contractual rights interact. Key protections include:

• Payment schedule: Under common construction practice and statutory frameworks, when a progress claim is made the recipient often must respond with a payment schedule stating the amount they propose to pay and reasons for any withholding.
• Security of Payment Acts: Each state has a Security of Payment regime that provides fast adjudication for payment disputes and strict timeframes. These regimes enable builders or subcontractors to seek adjudication if you refuse or underpay a bona fide progress claim. Useful official resources include ACCC public register guidance and state fair trading pages.
• Consumer protections: Consumer Affairs offices and state fair trading agencies publish checklists and rules about deposits, variations and warranties. Example: Consumer Affairs Victoria's "Paying for building work" checklist.
• Timelines: Security of Payment legislation imposes strict service and response timelines for progress claims and payment schedules; missing deadlines can affect rights.

Withholding payments, defects and retention—rights and risks

When you can withhold:

• Contractual grounds: If the contract allows withholding for specified defects or non-compliance, follow the contract procedure (e.g., issue a payment schedule).
• Valid dispute: If you have clear evidence that the stage was not completed to contract standard, you may withhold the contested portion.

Risks of wrongful withholding:

• Adjudication or litigation: Wrongful withholding can trigger fast adjudication under Security of Payment laws and can result in enforced payment plus interest and costs.
• Lien and insolvency risk: Subcontractors may lodge adjudication claims or other security interests; suppliers might stop work if unpaid.
• Relationship and delay: Payments withheld inappropriately can stall work and increase costs.

Retention monies:

• Purpose: Retention (usually a small percentage withheld at each stage or held until final) protects the owner against defective or incomplete works.
• Typical limits: Often 5% total retained with staged release (e.g., half at practical completion, remainder after defects liability period). Exact amounts vary by contract.
• Release timing: Retention is usually released after practical completion and the defects liability (remedial) period, subject to certification.

How construction loans and lenders affect stage payments

If you're using a construction loan:

• Lender inspections: Lenders normally require an independent inspection report before each drawdown and may have their own schedule tied to contract stages.
• Timing: Lenders can delay drawdowns until they are satisfied; this can hold up payments to the builder if not coordinated.
• Documentation: Expect to supply the contract, invoices, owner's ID, insurance certificates, builder's licence and progress evidence to the lender.
• Security: Lenders release funds into your construction account or directly to the builder, depending on your loan terms.

Confirm lender drawdown requirements early and align them with your contract's payment schedule to avoid timing mismatches that could lead to payment disputes or work stoppages.

For owner-side financing of renovations, see /personal/home-renovation-loans. Builders and trades may use equipment funding; see /business/equipment-finance.

Practical checklist: what to check before releasing a stage payment

Before you sign off and release funds, verify the following:

• Contract reference:
  • Confirm the claimed stage matches the contract schedule and percentage.
  • Check any variation orders and whether they adjust the stage amount.
• Evidence & documentation:
  • Builder's tax invoice / progress claim and itemised breakdown.
  • Photos dated and clearly showing the completed work.
  • Certifier / contract administrator's payment certificate (if required).
  • Subcontractor liens or unpaid supplier notices (perform a quick search).
• Inspections:
  • Visual site inspection by you or an independent inspector.
  • Lender inspection report if a construction loan is in place.
• Compliance & insurance:
  • Builder's licence and required insurances active and current.
  • Any statutory inspections passed (e.g., footings, framing).
• Retention & defects:
  • Confirm retention amount to hold (if applicable) and note defects liability period start date.
• Record-keeping:
  • Keep copies of all documents, receipts, certificates and correspondence.

If anything is unclear, ask the builder for clarification in writing and consider a short, formal hold pending verification rather than a blanket refusal to pay.

Sample contract clauses

The following examples are for reference only. Seek legal advice before use.

Payment schedule clause: "The contract sum will be paid by stage as set out in Schedule A. Upon completion of each stage the Builder will submit a progress claim with supporting photos and a tax invoice. The Owner must pay the certified amount within 10 business days of receipt of a valid progress claim or certification."

Progress claim timing clause: "A progress claim may be submitted no more frequently than once per stage. The Builder must include photographic evidence, the date of completion and a declaration that all subcontractors and suppliers up to the date of claim have been paid."

Retention clause: "The Owner will retain 5% of each progress payment up to a maximum of 5% of the contract sum. Half of the retention will be released at practical completion and the balance after the defects liability period of 6 months, subject to rectification of defects."

Dispute resolution (payment): "If the Owner disputes a progress claim the Owner must issue a payment schedule within 5 business days specifying the amount proposed and reasons. Parties must attempt mediation within 10 business days of a dispute, and either party may proceed to adjudication under the Security of Payment regime if time-critical."

Dispute steps and quick resolution pathway

When a payment dispute arises, take these steps in sequence:

1. Meet & inspect: Arrange a joint site inspection within 48–72 hours to identify the precise issues.
2. Request evidence: Ask the builder for the progress claim, photos, invoices and any certification.
3. Issue a payment schedule: If you are withholding part or all of a claimed amount, promptly serve a written payment schedule stating the payable amount and reasons.
4. Attempt negotiation/mediation: Use mediation or an agreed dispute resolution step to resolve technical disagreements quickly.
5. Adjudication: If unresolved and time-sensitive, either party can apply for adjudication under the relevant Security of Payment Act. Note strict filing and response timeframes.
6. Preservation steps: Where there is concern about unpaid subcontractors, consider checking for subcontractor notices, PPSR registrations or liens.
7. Legal advice: Obtain advice early to avoid wrongful withholding and exposure to adjudication or penalties.

Timing is critical under Security of Payment regimes—delays in issuing a payment schedule or filing adjudication applications can affect your rights.

FAQ

Key takeaways

Stage payments are scheduled instalments tied to construction stages. They reduce risk when clearly defined, documented and supported by photos, certification and appropriate inspection. Understand your contract's payment schedule, keep rigorous records, confirm lender drawdown requirements and follow statutory payment procedures (including payment schedules and adjudication timelines) to minimise disputes.

Further reading

• Consumer Affairs Victoria — Paying for building work checklist
• NSW Fair Trading — Security of Payment
• ACCC public register guidance (PDF)
• ATO — Issuing tax invoices (GST & invoicing rules)
• MoneySmart (ASIC) — Building a house guide
• NSW Building and Construction Industry Security of Payment Act 1999

This article is general information only and is not legal, tax or financial advice.