Progress Claims in Construction: What Every Australian Developer Needs to Know

By Noel Yaxley

Your head contractor just submitted Claim #4 for $182,400. Your superintendent certified $156,200. That's a $26,200 gap — and you have 10 business days to issue a payment schedule before the full claimed amount becomes payable by default. Progress claims aren't just paperwork. They're the single biggest cash flow lever on your project, and the legislation around them has real teeth.

If you're a small developer running projects between $500K and $5M, you can't afford to treat progress claims as a rubber-stamping exercise. One missed deadline, one unchecked variation, one lazy assessment — and your project budget starts bleeding money you'll never recover.

This guide walks through how progress claims actually work in practice: how to read them, how to assess them, how to spot overclaiming, and how to protect yourself under Australia's security of payment laws.

TL;DR: Progress claims are monthly payment requests from your contractor, assessed against actual work completed. Under Australian security of payment legislation, you must respond with a payment schedule within 10-15 business days or risk owing the full claimed amount. Tracking cumulative costs against contract value is the single most important thing you can do to protect your budget.

What Are Progress Claims and Why Do They Matter?

Progress claims are formal requests for payment submitted by a contractor at regular intervals — usually monthly — based on the value of work completed to date. According to the Australian Bureau of Statistics, the construction industry turned over $436.5 billion in the 2023-24 financial year (ABS, 2024), and virtually every dollar flows through some form of progress claim mechanism. Getting this process right isn't optional.

Here's the core concept. A contractor doesn't wait until the entire job is finished to get paid. Instead, the contract sets out a claim cycle — typically monthly — where the contractor submits a claim for the portion of work they've completed since the last claim. The superintendent (or contract administrator) then assesses the claim, certifies an amount, and you pay it.

The difference between "claimed" and "certified"

This distinction trips up first-time developers constantly. The claimed amount is what the contractor says they're owed. The certified amount is what the superintendent independently assesses as fair and reasonable based on actual progress. These two numbers almost never match. And that gap is where your attention needs to be.

The claimed amount reflects the contractor's view. The certified amount reflects the superintendent's professional assessment. Your job as the developer is to understand both numbers and why they differ.

How Does the Progress Claim Cycle Work?

The typical claim cycle runs on a predictable monthly rhythm, with strict timeframes enforced by legislation. Under the Building and Construction Industry Security of Payment Act 1999 (NSW), a respondent must provide a payment schedule within 10 business days of receiving a claim (NSW Legislation, 1999). Miss that window and you've got a serious problem.

Here's how a standard monthly cycle looks on most contracts:

Step 1: Contractor submits the claim

Around the 25th of each month (or whatever date your contract specifies), the contractor submits a progress claim. This includes a cover letter stating the amount, a detailed breakdown by trade or work package, any variations claimed, and supporting documentation like delivery dockets or subcontractor invoices.

Step 2: Superintendent assesses the claim

Your superintendent or contract administrator walks the site, compares the claimed work to what's actually been done, checks rates against the contract, and reviews any variations. They then issue a progress certificate stating the certified amount. This should happen within 5-10 business days of the claim, depending on your contract.

Step 3: You receive the certificate and issue a payment schedule

Once you get the certificate, you need to issue a payment schedule to the contractor. Under most state security of payment acts, this payment schedule must state the amount you propose to pay and, if it differs from the claimed amount, explain why. This is your formal response.

Step 4: Payment

Payment is due within the timeframe stated in your contract — typically 5-10 business days after issuing the payment schedule. Under the Security of Payment Act (NSW), if no payment date is specified, payment is due within 10 business days of the payment claim being made.

Citation capsule: Under Australia's Building and Construction Industry Security of Payment Act 1999 (NSW), a principal must provide a payment schedule within 10 business days of receiving a progress claim. Failure to respond means the claimed amount becomes a debt due, enforceable through adjudication or court proceedings (NSW Legislation, 1999).

How Do You Actually Assess a Progress Claim?

Assessing a progress claim properly takes more than a quick scan of the bottom line. The Master Builders Association reports that payment disputes remain one of the top three causes of insolvency in Australian construction (Master Builders Australia, 2023), and poor claim assessment sits at the root of most disputes. Here's a practical breakdown.

After managing claims across dozens of residential and mixed-use projects, I've found that most assessment errors come from the same three places: not checking cumulative totals, not verifying variations are approved, and not doing a physical site walk before signing off.

Check the contract value and cumulative position

Before you look at this month's claim, pull up the running total. Every progress claim should show the cumulative value of work completed to date, minus previous payments. This is how you catch drift. If Claim #3 certified $320,000 cumulative and Claim #4 jumps to $502,400 cumulative, that's $182,400 of work in one month. Does that match the program? Does it pass the gut check?

Compare line items to the schedule of rates

Your contract should include a schedule of rates or a lump sum breakdown by trade. The contractor's claim should map to these items. Compare each line: did they claim 80% of the structural steel when the frames aren't even finished? Are they claiming preliminaries at 100% when the project is only 40% through?

Verify variations separately

Variations should be listed as distinct line items. Check that each variation has been properly instructed (in writing), valued, and approved before it's included in a progress claim. Unapproved variations in a progress claim are a red flag. We'll cover this in more detail below.

Walk the site

There is no substitute for this. Numbers on a spreadsheet don't tell you that the waterproofing was done poorly, or that the claimed tiling hasn't actually started. If you can't walk the site yourself, make sure your superintendent does — and that they document what they see.

What Does a Real Progress Claim Assessment Look Like?

Let's work through a realistic example. Concrete numbers make this clearer than theory ever could. The Australian Constructors Association found that projects over $500K experience an average of 12-18 progress claims across their lifespan (Australian Constructors Association, 2023). Every single one needs this level of scrutiny.

Here's a worked example based on a real project scenario — numbers adjusted for clarity.

The scenario

You're developing a 6-townhouse project in Western Sydney. Contract sum: $2,180,000 (incl. GST). The contractor submits Claim #4 on the 25th of the month.

Claim #4 breakdown (contractor's submission):

The superintendent's assessment

Your superintendent inspects the site and reviews the documentation. Here's where the numbers shift:

• Preliminaries: Superintendent certifies $32,700 (not $43,600). Preliminaries should track proportionally with project completion, which is around 38% — not the 70% implied by the claim.
• Concrete & Structure: Certified at $78,480 (not $87,200). Two units still have incomplete ground floor slabs.
• Brickwork: Certified at $68,852 (not $78,480). External walls on Units 5 and 6 haven't started.
• Roofing: Certified at $43,600 (not $52,320). Tile fix incomplete on Unit 1.
• Variation #1: Certified at $18,700. Properly instructed and documented.
• Variation #2: Excluded entirely. No written instruction exists.

Certified amount: $156,190 (versus the claimed $182,000). That's a gap of $25,810.

What the gap tells you

A $25,810 gap on a $182,000 claim is roughly 14%. In my experience, gaps between 5-15% are normal and indicate healthy tension between contractor and superintendent. Gaps consistently above 20% suggest the contractor is systematically overclaiming — and you need to have a direct conversation about it.

Citation capsule: On a typical $2.18M townhouse project, a single progress claim might show a 10-15% gap between the contractor's claimed amount and the superintendent's certified amount. This gap commonly arises from overclaimed preliminaries, work not yet completed to the claimed percentage, and unapproved variations included in the submission.

What Are the Most Common Overclaiming Tactics?

Overclaiming is endemic in construction. It's not always malicious — sometimes it's optimism, sometimes it's a subcontractor passing inflated numbers up the chain. But according to a 2022 survey by the Australian Subcontractors Association, 63% of subcontractors reported experiencing payment disputes related to disputed claim amounts (Australian Subcontractors Association, 2022). Here's what to watch for.

Front-loading preliminaries

Preliminaries (site establishment, supervision, insurance, scaffolding) are the easiest items to overclaim because they're hard to pin to a specific deliverable. If your contract has a $200,000 prelim allowance and the contractor claims 60% of it when the project is only 30% complete, that's front-loading. It means they're getting paid for supervision and site costs they haven't incurred yet.

How to fight it: insist that preliminaries are claimed proportionally to overall project completion, or better yet, break them into time-based and fixed components in the contract.

Claiming incomplete work at full value

A contractor might claim "tiling — 100%" for a unit when the tiling is physically done but hasn't been grouted, sealed, or cleaned. The work isn't complete until it meets the specification. Your superintendent should be checking this on site, not just ticking off a spreadsheet.

Bundling unapproved variations

This is the one that costs developers the most money. A contractor includes two or three unapproved variations in a progress claim, buried in the line items. If you're not checking each variation against your instruction register, you might pay for work you never actually approved. Always reconcile variations against written approvals before certifying.

Inflating subcontractor values

On cost-plus or construction management contracts, the contractor might pass through subcontractor invoices at higher values than the subcontractor actually charged. This is harder to catch but not impossible. Spot-check by requesting original subcontractor invoices on random claims.

But here's the thing — not every discrepancy is intentional. Genuine mistakes happen, quantities get miscounted, and subcontractors submit rough estimates. The goal isn't to assume bad faith. It's to have a process that catches errors regardless of intent.

The contractors who overclaim the most aggressively are often the ones with the worst cash flow. Overclaiming is frequently a symptom of a contractor under financial stress — which is itself a risk indicator you should be monitoring.

How Does Security of Payment Legislation Protect (and Trap) You?

Every Australian state and territory has security of payment legislation. These laws were designed to keep money flowing through the construction chain — but they create real traps for developers who don't understand the deadlines. The NSW Small Business Commissioner reported that adjudication applications under the Security of Payment Act increased by 22% between 2020 and 2023 (NSW Small Business Commissioner, 2023). Developers are losing disputes they could have won, simply by missing deadlines.

The payment schedule trap

Here's the most dangerous provision. Under the Security of Payment Act (NSW), if you receive a progress claim and don't respond with a payment schedule within 10 business days, the claimed amount becomes a debt due. The contractor can file an adjudication application, and you'll be arguing from a position of weakness — or they can go straight to court for the full amount.

The equivalent timeframes in other states: Victoria allows 10 business days under the Building and Construction Industry Security of Payment Act 2002 (Vic). Queensland provides 15 business days under the Building Industry Fairness (Security of Payment) Act 2017 (Qld).

What a valid payment schedule must contain

Your payment schedule isn't just a number on a piece of paper. It must include:

• The amount you propose to pay (which can be zero)
• If the amount differs from the claim, your reasons for the difference
• If you're withholding money, the reasons for withholding

Miss any of these elements and your payment schedule might be invalid — which puts you back in the same position as not responding at all.

Adjudication: what happens when there's a dispute

If the contractor disagrees with your payment schedule, they can apply for adjudication. An independent adjudicator reviews both positions and makes a binding interim determination — usually within 10 business days. The adjudicator's decision is enforceable as a court judgment.

The key word is "interim." Adjudication doesn't resolve the dispute permanently. You can still pursue the matter through the courts or arbitration. But in the meantime, you have to pay whatever the adjudicator determines.

Citation capsule: Under the Building and Construction Industry Security of Payment Act 1999 (NSW), failure to issue a valid payment schedule within 10 business days of receiving a progress claim results in the claimed amount becoming a debt due. The contractor can then seek adjudication or court enforcement of the full claimed amount without the developer being able to raise most defences (NSW Legislation, 1999).

How Should You Handle Retention on Progress Claims?

Retention is the percentage of each certified payment you're entitled to hold back as security for defects. Standard retention in Australian construction contracts is 5% of each progress certificate, capped at 5% of the contract sum. According to the Housing Industry Association, retention disputes account for a significant portion of post-completion payment claims (HIA, 2024).

How retention works in practice

On a $2M contract with 5% retention:

• Each month, you withhold 5% of the certified amount
• Retention accumulates until it reaches the cap (5% of $2M = $100,000)
• At practical completion, half the retention ($50,000) is typically released
• The remaining half is released at the end of the defects liability period (usually 12 months after practical completion)

Tracking retention across claims

Your claim tracking spreadsheet (or software) needs a running retention balance. Here's a simplified example:

Retention seems small on individual claims. But by Claim #12 on a $2M project, you could be holding $80,000-$100,000. That's real money — and the contractor will be pushing to get it released.

Retention and cash flow

Don't forget: retention you're holding is money you've already committed. It's not profit. It's a liability that will come due at practical completion and again at the end of the defects period. Factor it into your cash flow forecasting.

How Do Variations Affect Progress Claims?

Variations are scope changes — additions, omissions, or modifications to the original contract work. They're where budgets go off the rails. The Australian Institute of Quantity Surveyors found that the average construction project in Australia experiences cost variations of 10-15% above the original contract sum (AIQS, 2023). Most of that flows through progress claims.

The golden rule: no instruction, no payment

Every variation should follow this sequence:

1. Instruction: You (or your superintendent) issue a written variation instruction
2. Valuation: The contractor provides a quotation or the superintendent values it
3. Approval: You approve the variation in writing
4. Claim: The contractor includes the approved variation in the next progress claim

If a variation appears in a progress claim without steps 1-3 being documented, it should not be certified. Full stop. This is the single most important discipline in variation management.

Cumulative variation tracking

Keep a separate variation register that tracks every instructed, quoted, approved, and claimed variation. Reconcile this register against every progress claim. If the contractor's claim includes Variation #7 but your register only shows Variations #1-5 as approved, there's a conversation to have before any money changes hands.

On one project, a contractor included $47,000 in unapproved variations across three consecutive claims. Because the superintendent was new and didn't have a variation register, two of the three were certified and paid before anyone caught the error. We recovered the money eventually, but it took months and a lot of uncomfortable meetings. A $20 spreadsheet would have prevented it.

How Do You Forecast Cash Flow From Progress Claims?

Cash flow forecasting is where claim data becomes a strategic tool. The Reserve Bank of Australia has noted that construction firms face among the highest rates of cash flow stress of any industry sector (RBA Financial Stability Review, 2024). As a developer, your project's cash flow directly depends on the timing and size of progress claims.

Building a claim-based cash flow forecast

Your S-curve (cumulative cost forecast) should be updated after every progress claim. Here's the process:

1. Start with the contractor's original program and the contract sum
2. Plot expected monthly claim values based on the program
3. After each claim, replace forecast values with actuals
4. Adjust remaining forecasts based on the trend

If Claim #4 comes in $25,000 higher than expected and the project is tracking 8% ahead of budget on a cumulative basis, your remaining forecast should shift upward proportionally. Don't wait until Claim #10 to realise you're $200,000 over budget.

When claims signal trouble

Progress claims are an early warning system. Watch for these patterns:

• Declining claim values mid-project: The contractor might be slowing down due to subcontractor issues or cash flow problems
• Suddenly large claims: Could indicate front-loading or a rush to get cash in before a crunch
• Repeated large gaps between claimed and certified: Systematic overclaiming, which often correlates with financial distress
• Variations exceeding 10% of contract sum: Your scope management needs attention

Don't just process claims. Read them. They tell you the story of your project's financial health.

If you're tracking claims in a spreadsheet, consider moving to purpose-built software like UpScale.build that links claim data directly to your project budget and cash flow forecast — so you're not manually reconciling across five different files every month.

Citation capsule: Progress claims serve as an early warning system for project financial health. Patterns such as declining claim values mid-project, sudden spikes, or cumulative claimed amounts consistently exceeding certified amounts by more than 15% often indicate contractor cash flow stress or systematic overclaiming, according to construction project management best practice.

Frequently Asked Questions

What happens if I miss the payment schedule deadline?

Under security of payment legislation, missing the deadline to issue a payment schedule means the full claimed amount becomes a debt due. In NSW, you have 10 business days from receiving the claim (NSW Legislation, 1999). The contractor can then apply for adjudication or seek enforcement through the courts. Even if the claim was inflated, your ability to dispute it is severely limited once the deadline passes. Set calendar reminders for every claim due date.

How much retention should I hold on each progress claim?

Standard practice in Australian construction contracts is 5% of each certified payment, capped at 5% of the total contract sum. At practical completion, half the retention is typically released, with the remainder held until the defects liability period expires — usually 12 months later. Check your specific contract terms, as some contracts specify different rates or caps.

Can a contractor claim for materials stored on site but not yet installed?

Yes, most standard form contracts allow claims for "unfixed materials on site" — materials delivered but not yet incorporated into the works. However, the materials must be properly stored, identifiable, and the contractor should provide evidence of payment for them. Your superintendent should verify the materials are actually on site before certifying this portion of the claim.

What's the difference between a progress claim and a payment claim under security of payment?

A progress claim is made under the construction contract between the parties. A payment claim under security of payment legislation is a statutory claim that gives the contractor access to adjudication and enforcement rights. In practice, a progress claim can serve as both — but it must meet the requirements of the relevant state act (including a statement that it's made under the act) to trigger the statutory protections and deadlines.

How do I track cumulative progress across multiple claims?

Set up a tracking spreadsheet or use project management software that records, for every claim: the contract line item, previously certified amount, this claim amount, cumulative certified amount, and percentage of contract value claimed. Reconcile every claim against the running cumulative total. If cumulative claimed amounts jump unexpectedly between claims, investigate before certifying.

Key Takeaways

Progress claims are the pulse of your construction project's finances. Get the assessment process right and you'll maintain control of your budget, your cash flow, and your relationship with your contractor. Get it wrong — or worse, ignore the deadlines — and you'll pay for work that was never done, at prices you never agreed to.

Here's what matters most: respond to every claim within the legislated timeframe, walk the site before certifying, track cumulative totals across every claim, keep a variation register and reconcile it monthly, and forecast your cash flow from actual claim data rather than wishful thinking.

The developers who run tight projects aren't the ones with the biggest budgets. They're the ones who treat every progress claim as an opportunity to verify, adjust, and stay ahead of problems before they compound.

Noel Yaxley is the founder of UpScale.build, a project management platform for small Australian property developers. He has assessed and managed progress claims across residential, mixed-use, and commercial projects throughout Sydney.