Construction stage payments and the draw schedule: how Australian builds get funded

A new home in Australia is paid for in chunks, not in one go. The builder takes a deposit at signing, then four or five more payments as each defined stage of the build is reached. The construction loan behind the scenes releases the matching funds only after an inspection confirms the stage is actually complete. Get a step out of order, or pay for work that isn't finished, and the recovery options narrow quickly.

The stage-payment structure is set by state legislation and codified in HIA and MBA standard contracts. It looks bureaucratic. It is also the single biggest protection an owner-builder has against being stranded mid-build by a contractor who has banked half the money for a third of the work.

The five-or-six stage HIA standard structure

Most residential builds follow a familiar progression. The percentages vary by state and by contract template, but the shape is consistent:

1. Deposit (5-10%) on contract signing. State legislation caps this in most jurisdictions to stop builders taking a large upfront sum before any work begins.
2. Base or slab (10-20%) on completion of the foundation and floor slab. Pour, cure, and certification by the structural engineer.
3. Frame (15-25%) on completion of framing, roof trusses, and structural bracing. Frame inspection by the certifier signs off this stage.
4. Lockup or enclosed (20-30%) on completion of external walls, roof cladding, external doors, and windows. The dwelling can be physically locked at this point.
5. Fixing or fit-off (20-30%) on completion of internal linings, cabinetry, tiling, and second-fix carpentry and plumbing.
6. Practical completion (10-15%) on final inspection, certificate of occupancy, and handover.

Some contracts collapse this into four stages by combining frame and lockup. Higher-end custom builds often expand it to seven or eight stages, breaking out cabinetry, paint, and landscaping as separate payments. The legislative caps still apply: aggregate the sub-stages and the total per regulated phase has to sit under the statutory ceiling.

State regulation of progress payments

Each state writes its own rules on what a builder can claim and when. The common thread is that paying for work not yet substantively complete is generally a statutory breach by the builder.

• NSW: Home Building Act 1989. Progress payments must align with stages actually reached, and the deposit is capped (currently 10% on contracts under $20,000; 5% above that). Front-loading the schedule is prohibited.
• VIC: Domestic Building Contracts Act 1995. For major-domestic contracts the Act prescribes maximum stage percentages and standard stage definitions. The VBA publishes the canonical list.
• QLD: Building Act 1975 with QBCC oversight. Stage-payment compliance is part of the licensed-builder regime; non-compliance is a reportable breach.
• WA: Home Building Contracts Act 1991. Tight rules on payment timing, deposit caps, and the format of progress claims.

The detail differs but the principle is uniform across the country: the builder is paid for work done, not work promised. Refusing to authorise a stage payment until the stage is substantively complete is the owner's right, and the statute backs it.

Worked example: $600,000 fixed-price build

Take a $600,000 fixed-price contract on a five-stage HIA schedule. The cash flow runs:

• Deposit 5% = $30,000 at contract signing
• Base 15% = $90,000 at slab completion
• Frame 20% = $120,000 at frame completion
• Lockup 25% = $150,000 at lockup
• Fixing 20% = $120,000 at fit-off
• Practical completion 15% = $90,000 at handover
• Total: $600,000

Note that the deposit and the first stage usually come out of the borrower's own funds before the construction loan starts drawing. Lenders generally insist the borrower's equity contribution lands first; bank funds release later. On a 20% deposit structure the borrower has already put $120,000 of their own money in before the first drawdown, which covers the deposit and roughly the slab.

How the construction loan funds each stage

A construction loan is a progressive-drawdown facility. The full approved limit sits available, but funds release only as each stage is signed off. The mechanical sequence on every stage payment runs:

1. Builder completes the stage and issues a progress claim invoice.
2. Borrower lodges the invoice with the bank via the construction-loan portal, signed authority, or solicitor.
3. Bank dispatches its valuer or inspector to confirm the stage is complete. On standard project-home builds many lenders accept paperwork-only inspections after the first stage; on custom builds physical inspections continue throughout.
4. Bank releases the funds directly to the builder. The amount adds to the drawn balance and starts accruing interest.
5. Borrower pays an inspection fee, typically $150-$300 per stage, added to the loan or paid out of pocket.

Interest during construction is charged only on the drawn balance, not the full approved limit. Early months are cheap; the last months, with the bulk of the loan drawn, are not. Most construction loans convert automatically to a standard principal-and-interest home loan at practical completion. The mortgage calculator will sketch what the fully-drawn P&I repayment looks like once the build settles, which is the number that matters for long-term serviceability.

Variations: the schedule's blind spot

Every change order during the build, whether an upgrade to stone benchtops, additional power points, or a switch to a different cladding profile, generates a variation invoice. Variations are not part of the original stage schedule. They sit outside the bank's drawdown structure and are typically paid from the buyer's own cash, not the loan, unless the bank approves a formal contract variation and increases the facility limit.

That structural fact is why a 10-15% cash buffer outside the loan is non-negotiable on any new build. Variations adding 3-7% to a disciplined contract is normal; 10-15% if the inclusions schedule was thin to start. Trying to fund variations through the construction loan mid-build requires a formal credit re-assessment by the lender, which takes weeks the build timeline rarely allows. The building-contracts article works through PC and PS allowances, which are where most variations originate.

Watch-outs that swallow real money

Five recurring problem patterns:

• Stage-completion definition fights.What counts as "frame complete"? The bank's inspector and the builder don't always agree, and the owner is left holding an invoice the bank won't fund. Insist that stage definitions in the contract use the standard wording from the relevant state Act, not builder-drafted variants.
• Front-loaded schedules. Some builders try to bias percentages toward earlier stages (12% deposit, 25% base) to improve cash flow. Statute usually caps this. If a quoted schedule front-loads, push back and quote the relevant state legislation.
• Builder insolvency mid-build.If a builder collapses after collecting the lockup payment but before fit-off, the buyer is left with a half-built house and a mostly-drawn loan. Home builders' compulsory warranty insurance covers some scenarios, including completion costs up to a state-specific cap, but the recovery is slow and the new builder always charges more to finish someone else's work.
• Delayed payments and liquidated damages. Most contracts include LD clauses for builder-caused delays past the contracted completion date, typically $200-$500 per day on owner-occupier builds. Negotiate this to your real carrying cost (rent plus loan interest), not the template default of $50/day.
• Authorising drawdowns before inspecting. Once the bank pays a stage, leverage shifts to the builder. Walk the site, take dated photos, and refuse to sign the drawdown authority until the stage is substantively complete.

Practical buyer protections

Four habits that move outcomes more than any contract clause:

1. Independent stage inspections,separate from the bank's inspector, at $300-$500 per visit. Three or four inspections across a build cost less than a single unrectified defect. The pre-purchase inspection article covers what an inspector looks at; the same skills apply mid-build.
2. Photo evidence of each stagewith dates, stored somewhere outside the builder's system. If a dispute reaches QCAT, VCAT, NCAT, or SAT, the contemporaneous photo record is often what decides it.
3. Hold the drawdownuntil your independent inspector confirms. The bank's inspector protects the bank, not you. Two signatures slow nothing material; they stop expensive mistakes.
4. Keep a 10-15% cash buffer outside the loan for variations. The buffer also covers carry costs if the build runs late, which the loan facility does not extend to cover.

What practical completion actually means

The final stage payment releases on practical completion, not absolute perfection. Practical completion is the point where the home is reasonably fit for occupation, with a punch list of minor defects to be rectified during the defects-liability period (typically 13 or 26 weeks). The builder is entitled to the final payment when PC is reached even if minor items are outstanding, as long as those items don't materially affect occupation.

Don't use the final payment as leverage for unrelated disputes. State tribunals routinely find against owners who withhold the practical-completion payment over $2,000 of cosmetic issues on a $600,000 build. Hold proportionate amounts in the defects-liability mechanism instead, with legal advice if the amount in dispute is meaningful.

The structural takeaway

The stage-payment system is one of the more buyer-friendly parts of Australian construction law. Funds release against verified work; statutes cap deposits and prevent front-loading; independent inspection rights are written into the standard contracts; warranty insurance covers builder insolvency. None of those protections operate automatically. They activate when the owner reads the schedule, refuses to authorise drawdowns that aren't earned, and treats every stage as a discrete commercial transaction rather than a formality.

Build your draw schedule on paper before signing. Match it to the construction loan's expected drawdown pattern. Hold the cash buffer. Walk every stage before paying. That's how a fixed-price residential build in Australia actually ends within budget and within shouting distance of programme.