Subcontractor Compliance & Payment Times Reporting for AU Builders

May 27
6 min read

The compliance load most builders underestimate

Construction businesses in Australia don't just run jobs and BAS. They also run a stack of statutory obligations around how they engage and pay subcontractors — and the regulatory bar has lifted hard in the last three years.

The big four:

Payment Times Reporting Scheme (PTRS) — reporting on how fast you pay your subbies, with publicly searchable results.
Security of Payment Act (SoPA) — the state-level scheme controlling progress claim timing and adjudication rights.
Superannuation Guarantee + TPAR — for any subbie who looks more like an employee than a contractor.
Subcontractor statutory declarations — the head-contractor / principal-required paperwork that says you've paid your subbies before you collect from upstream.

This is the practitioner walkthrough. What each one actually requires, the threshold tests, the common mistakes, and the simple monthly process that keeps you compliant without burning weeks of admin.

Payment Times Reporting Scheme (PTRS) — who reports, what, when

PTRS commenced 1 January 2021. Administered by the Department of Employment and Workplace Relations.

Who has to report

Large Australian businesses meeting any of these:

Total income > $100 million in the prior financial year
Member of a corporate group that meets the threshold
Some controlling entities of foreign companies operating in Australia

Most TechEdge-tier construction operators ($2M-$50M) are not direct reporters. But you should know two things:

The head contractors you supply to ARE reporters. They will use your payment performance in their internal scoring. A slow-pay subbie reputation can hurt future tenders.
If you cross $100M revenue (acquisition, joint venture, large-project year), you become a reporter from the next reporting period. The set-up has lead time.

What's reported

Reporters must disclose payment times for invoices from small business suppliers (entities with annual turnover < $10M). Six-monthly cycles, public register. Key metrics:

Standard payment period
Proportion of invoices paid by <21 days, 21-30, 31-60, 61-90, >90
Average + median payment time

Practical implications

Even non-reporters should run an internal payment-times dashboard — the head contractors you tender to are increasingly asking for it. A clean record of paying subbies within 30 days is a tendering asset.

Security of Payment Acts — state-by-state

Each state has its own SoPA scheme. Headline timing rules (paraphrased — refer the specific Act for case-specific advice):

State	Reference period (head contractor → claimant)	Adjudication response window
NSW	10 business days	20 business days from application
VIC	10 business days	10 business days
QLD	15 business days	10 business days
SA	15 business days	10 business days
WA	14 days	14 days

The accounting/finance angle: every progress claim you receive needs to be processed against the SoPA timeline. Missed timing = automatic exposure to adjudication + statutory interest.

The internal process we install at clients:

Each subcontract incoming claim date-stamped on receipt.
SoPA reference period for the relevant state pre-loaded into the AP workflow.
Approval/dispute response sent within the statutory window.
Disputed claims escalated within 48 hours to commercial/legal.

Super Guarantee + TPAR for subbies

The ATO contractor classification tests determine whether a subbie is an "employee" for super purposes. Genuine independent contractor — running their own business, multiple clients, project-defined deliverables, own ABN — sits outside super. Worker-in-disguise gets super coverage regardless of any ABN.

The high-risk pattern

You engage "Joe with an ABN" who:

Works only for you
Paid hourly
Uses your tools / your insurance / your supervision
Treated functionally like an employee

Joe is at high risk of being recharacterised as an employee for super. You owe back-payment Super Guarantee (currently 12% in 2026), plus the Super Guarantee Charge (a penalty regime on top), plus interest.

TPAR — Taxable Payments Annual Report

Building & construction services entities lodging TPAR annually by 28 August reporting:

Name + address of each contractor
ABN
Total amount paid (incl GST)
Total GST paid

Failure to lodge or knowingly false report triggers ATO penalties starting at $313 per missed lodgement (FY26 base figure).

The combined check

Every January, run a contractor list with three columns:

Total paid this FY (TPAR feed)
Hourly engagement pattern vs project-based engagement pattern
Super Guarantee paid (if any)

Any contractor >$50k who's been engaged hourly without super → flag for re-classification review.

Subcontractor statutory declarations

For construction projects above certain values (varies by head contractor / principal), a statutory declaration is required at each progress claim certifying:

All wages and superannuation owed to direct employees on the project paid
All subcontractor invoices on the project paid (or in dispute)
All workers comp + payroll tax up to date

This is your principal/head contractor's protection — if they pay you and you haven't paid your subbies, the principal can be exposed under various direct payment provisions.

Most builders we onboard treat stat decs as a one-off paperwork exercise per claim. The proper treatment is monthly: stat-dec-ready every progress claim because subbie payment + super + WC + payroll tax are all reconciled monthly anyway.

Common mistakes (and the fixes)

Mistake 1 — Subbie hourly, no super, no review

"Joe has an ABN, he's a contractor, no super." Wrong if Joe functions as an employee.Fix: Annual contractor classification review using the ATO contractor test. Where unclear, treat as PAYG and pay super.

Mistake 2 — SoPA timing missed

Disputed claim sent on day 12 (NSW = past statutory window). You're now exposed.Fix: SoPA timer in the AP workflow. Approval/dispute outgoing within 7 business days of receipt, with 3-day buffer.

Mistake 3 — TPAR not lodged or partial

Contractors paid in cash or via casual invoices not captured.Fix: All construction-service contractor payments through GL with TPAR sub-account. Monthly reconciliation. August lodgement on time.

Mistake 4 — Stat dec on the day, scrambling

Progress claim due Friday; finance scrambling Thursday to confirm sub payments + super + WC are all current.Fix: Monthly close timetable includes "stat dec ready" check. By day 7 of each month, last month's stat dec is signable.

Mistake 5 — Single-tier subcontractor reliance with no payment-times tracking

Your business is paid in 60-90 days by head contractors but pays subs in 7-14 days. Working capital strain.Fix: Match terms where possible. If unmatched (typical), model the gap in the 13-week cash forecast. Plan facility headroom accordingly.

The monthly compliance dashboard

A one-pager that lives in the management pack:

Metric	This month	Trailing 3-month average	Status
Avg payment time to subbies	21 days	22 days	✅ Green
% subbies paid <30 days	87%	83%	✅ Green
SoPA timing breaches	0	0.3	✅ Green
Super paid on PAYG'd subbies	100%	100%	✅ Green
TPAR-eligible contractors flagged for review	2	n/a	⚠️ Action needed
Stat dec late-issue	0	0	✅ Green

Two minutes per month to update once the data is flowing. Tendering value: this dashboard pasted into a tender response is meaningful proof of your operating discipline.

When this becomes a specialist conversation

The compliance burden gets material when you're running 30+ subbies in regular engagement. At that scale, a Finance Manager tier engagement covers it. As you move past 75 subbies or run multi-state operations, Financial Controller tier is the right scope.

The Maturity Audit at TechEdge includes a compliance question — Q7 (customer + supplier concentration) and Q8 (bank covenant tracking) — that surfaces whether your current setup is built for the compliance scale of your operation.

TL;DR for the busy founder

PTRS reporting kicks in at $100M revenue. Below that, run an internal payment-times dashboard anyway — head contractors check.
SoPA timing is state-by-state. Pre-load the reference periods in your AP workflow.
Annual contractor classification review using the ATO test. Hourly + single-client + supervised = employee for super, regardless of ABN.
TPAR lodged 28 August every year. All construction-service contractor payments captured.
Stat-dec-ready by day 7 of every month. Don't scramble.
Match payment terms where possible. Model the gap in 13-week cash forecast where not.