Progress Payments Explained: When to Pay Your Builder (and When Not To)

Progress payments are one of the most consequential — and least understood — mechanics in a residential build. You are releasing tens of thousands of dollars at a time, often based on a phone call or an email that says "frame stage is done." Getting this right protects your money and your leverage. Getting it wrong is one of the most common ways homeowners end up in a difficult position before the build is even finished.

This guide explains how progress payments work in Australian residential construction, what the standard schedule looks like, the legal rule that NSW homeowners should know, and the red flags that mean you should pause before paying.

We are not lawyers and this is not legal advice. For what happens when a build dispute does arise, see Building Disputes in Australia.

What is a progress payment?

A progress payment is a scheduled instalment you pay your builder as the build moves through defined stages of completion. Rather than paying the full contract price upfront (which would give the builder no incentive to finish), or at the end (which would give you no incentive to keep funding the build), the price is split across milestones.

In theory, the balance of risk is shared: the builder funds work in advance; you pay when that work is done; neither party is exposed for the full contract sum at any one time.

In practice, disputes about when those payments are due — and whether the work actually matches the claim — are common.

The standard progress payment schedule

Most Australian residential building contracts use the same six-stage structure. The percentages below are typical but not universal — your contract is the only authoritative source.

Typical industry schedules often show a ~5% deposit. Legal deposit caps vary by state — in NSW the maximum is 10% of the contract price for work $5,000 and over (NSW contracts guide). Several other states cap deposits at 5% for larger contracts. Check both your payment schedule and your state's cap before you pay.

On a $500,000 build, this means you are releasing $50,000–$125,000 at each of the middle stages. These are not small amounts to get wrong.

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The NSW rule every homeowner should know

In NSW, the Home Building Act 1989 is explicit: progress payments must be linked to completed stages of work, not to dates or the builder's invoicing schedule.

A builder cannot lawfully issue a progress claim for "frame stage" if the frame is not actually complete. They cannot send the invoice on a date they have chosen because it suits their cash flow. The trigger is the work, not the calendar.

This sounds obvious. It is regularly ignored. Builders sometimes issue claims a few weeks before a stage is technically finished — on the assumption that it will be done by the time you transfer the money. The problem is that "nearly done" is not done, and once you have paid, the leverage to finish those outstanding items shifts to the builder's goodwill.

Other states are less explicit in their legislation, but the same principle applies as a matter of contract: your obligation to pay is triggered when the contracted stage is complete, not before.

Before you release each payment — a practical check

1. Revisit your contract's definition of the stage

"Frame complete" in your contract may mean something specific — frame erected and inspection certificate received, for instance, or windows installed. Know what your contract requires before the claim arrives, not after.

2. Inspect or get evidence

You do not need to be a building expert to notice that the external doors are not installed when the builder says lock-up is complete. Visit the site, or ask for a set of dated photos showing the stage finished. For high-value stages (lock-up and fixing in particular), consider engaging a licensed building inspector. Their report is also useful documentation if anything is disputed later.

3. Confirm completion in writing before you pay

Ask the builder to confirm, by email, that the stage is complete and ready for payment. This is not bureaucratic — it creates a record of what was claimed as done at the time you released the money.

4. Then pay promptly

Once you are satisfied the stage is complete, pay on time. Most contracts specify a payment period (often 5–10 business days). Withholding payment for reasons unrelated to stage completion can put you in breach — and give the builder grounds to charge interest or suspend work.

Red flags — when to pause before paying

The claim arrives before you have heard the stage is done. If you get a progress invoice without any prior notification that the stage has been reached, treat it as a prompt to inspect — not as confirmation that the work is finished.

The claim is date-based, not stage-based. Some builders issue progress claims on a regular invoicing cycle. If the invoice references a date rather than a completed stage, ask the builder to confirm the stage is actually complete before you pay.

"It will be finished by the time you transfer." This is one of the most common situations. The builder is confident the last few items will be done in the next few days. Maybe they will. The risk is that "the next few days" becomes the next few weeks, and you have already paid. If the outstanding items are minor, you might accept this with a written record of what remains. If they are structural or substantial, do not pay until done.

Outstanding defects from the previous stage. Each stage builds on the last. If there are unresolved items from the base stage when the frame invoice arrives, note them in writing and ask for a plan to rectify before or alongside the current claim. You are not required to accumulate a defect list through the whole build and raise it only at handover.

Pressure to pay quickly to avoid work stopping. Urgency framing — "the team has to move to another job if we don't receive payment by Friday" — is a negotiating tactic, not a contractual obligation. Your payment timeline is set by your contract, not by the builder's scheduling preferences.

Retention at practical completion

At practical completion, it is common and reasonable to retain a small amount — often the final 2–5% of the contract sum — until identified defects and outstanding items are rectified. Some contracts formalise this; others do not. If yours does not, you can raise it as a special condition before signing.

Practical completion is also when your statutory warranty period begins. The clock starts on defects, so document everything at handover — photographs, a written defect list, and the builder's response to it. See How to Document a Building Defect.

Variations and progress payments

Approved variations may increase the total contract price and affect the payment schedule. Make sure each variation is agreed in writing — including the price impact — before work starts. A verbal variation agreed on site in week six can show up as a surprise line item at practical completion if it was never documented.

For the full picture on variations, see Building Contracts in Australia.

The record that protects you

Every progress payment creates a financial fact. You paid $X on [date] against [stage], and the builder confirmed [stage] was complete. If something goes wrong later — a dispute over whether a stage was actually finished, an overpayment claim, or a defect that traces back to work done at a specific stage — your payment records and the documentation you collected at the time are your evidence.

That is what Chronicle Build is for: a running timeline of communications, decisions, and milestone records from deposit to handover. When a dispute arises, you are not reconstructing the story from memory — you have it.

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Related guides

• The 6 Stages of Building a House in Australia
• Building Contracts in Australia
• How to Document a Building Defect
• Writing a Defect Notice to Your Builder
• Verbal Agreements with Your Builder

Frequently asked questions

What are the standard progress payment stages in Australia?

Most Australian residential building contracts use six progress payment stages: deposit (contract signing), base/slab, frame, lock-up, fixing, and practical completion. The typical split is around 5/10/20/25/20/20 — but percentages vary by builder and state, and your contract is the only authoritative source.

Can my builder charge a progress payment before the stage is complete?

Generally no — and in NSW it is explicitly prohibited. The Home Building Act 1989 (NSW) requires progress payments to be linked to completed stages of work, not dates or the builder's cash-flow needs. In other states the rule is less explicit but the same principle applies: pay for work done, not work promised.

What happens if I pay a progress claim before the work is finished?

You lose leverage — and potentially money. Once the builder has been paid for a stage, their financial incentive to fix outstanding items at that stage is gone. If the relationship later breaks down, any overpaid amounts are difficult to recover.

Can my builder charge interest if I am slow to pay a progress claim?

Possibly — check your contract. Most HIA and Master Builders contracts allow the builder to charge interest on overdue progress payments after a specified period (often 5–10 business days). That is a legitimate contractual right. The counterweight is your right to inspect and confirm the stage before paying.

What should I do if my builder submits a progress claim for a stage that is not done?

Respond in writing promptly. Note specifically which items are outstanding, request they be completed before you release payment, and keep a copy of your response. Do not simply ignore the claim — silence can be construed as acceptance in some contract forms. If the builder insists and the dispute escalates, your written record of what was incomplete becomes your evidence.