AASB S2 Year 1 Has Started. Every Week You Delay Creates a Permanent Gap.
Group 2 applies to financial years beginning on or after 1 July 2026. For 30 June year-end entities, Year 1 is underway.
Scope 1 and 2 data should be captured consistently throughout your first reporting year. Contemporaneous source records generally provide stronger assurance evidence and reduce reliance on estimates. Where records are missing, recover what is available, document the gaps and establish controlled collection now. The independent assurance practitioner determines what evidence is sufficient and appropriate. Fixed-fee, plain English setup from an ISO 14064 Lead Verifier Practitioner (TÜV SÜD).
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What it costs to be unprepared
AASB S2 sits inside your annual financial report. Non-compliance is a financial reporting failure, not an administrative oversight. Here is what your board, lenders, and auditors will face if you arrive at your first report without verified data and a documented governance framework.
Audit qualification risk
External auditors are expected to flag missing or estimation-only climate disclosures in the directors' report. A qualified audit opinion can trigger covenant review under common banking facilities.
ASIC oversight
AASB S2 disclosures sit inside the annual financial report and are subject to ASIC's general financial reporting oversight. Directors are responsible for the accuracy of the financial report.
Lender, investor and supply-chain scrutiny
Major banks and institutional investors increasingly reference climate disclosures in credit reviews. Group 1 entities are already passing Scope 3 questionnaires down the chain. Weak data affects facility terms, ESG scoring, and preferred-supplier status.
What must be running now - and what can still develop
Subject to Chapter 2M annual financial reporting requirements, the Group 2 pathways include meeting two of three consolidated size tests: revenue $200m+, assets $500m+, or 250+ employees. A corporation required to report under the NGER Act is generally in Group 2 unless already in Group 1. Run the full Group Checker →
AASB S2 has four disclosure pillars: Governance, Strategy, Risk Management, and Metrics & Targets. Only one (Metrics & Targets) depends on continuous data capture from Year 1. The others can mature during the reporting period. But every week of missing Metrics data is gone forever.
Fuel records, power bills and refrigerant logs should support a clear evidence trail from activity data to the reported figure. Contemporaneous records generally provide stronger assurance evidence and reduce reliance on estimates. Recover available records, document missing data and assumptions, and establish a controlled collection process for the remainder of the reporting period.
The one-year Scope 3 grace period is not a reason to wait. Supplier engagement and methodology selection take 12 to 18 months. Every month of delay in Year 1 compresses your Year 2 preparation window. Pick your approach and document it now.
Governance accountability can be formalised during the reporting period. Aim to have board-minuted accountability in place before your first half-year close. Earlier is always better.
Physical risks (drought, flood, heat), transition risks (regulation, customer demand). Document outcomes during the reporting period. Earlier workshops give you more time to stress-test outputs before reporting.
The AASB S2 four-pillar structure is set. Your auditor needs evidence behind each pillar. Lock this in well before disclosure assembly in mid-2027. Starting early means fewer surprises at report time.
Aethiro vs Big-Four consulting
A practical, fixed-fee delivery model focused on the data and documentation your reporting team needs.
| Aethiro | Big-Four firm | |
|---|---|---|
| Engagement model | Fixed-fee, scoped up front | Typically hourly billing with larger advisory budgets |
| Typical time to data system live | Around 90 days | Commonly 6 to 9 months |
| Methodology | Built to ISO 14064 rigour, NGA Factors, GHG Protocol | Proprietary frameworks common |
| On-site presence | Yes, regional Australia | Often city-based, remote analysts |
Comparison reflects general observations of the advisory market and is not a representation of any specific firm. Aethiro pricing is fixed up front, scoped during the discovery call, with no scope creep.
Why choose a regional advisor like Aethiro?
Climate reporting is operational, not theoretical. The data lives in fuel logs, power bills, supplier invoices, and site walkarounds, not in PowerPoint decks. That changes who you should hire.
You work directly with the technical lead
Engagements are led personally by Akshay Dave, ISO 14064 Lead Verifier Practitioner (TÜV SÜD) with 13 years of heavy industry experience. No rotating analysts. No knowledge handoffs.
On-site presence across regional Australia
We walk your sites, meet your maintenance team, look at your fuel records in person. Headquartered in Gladstone, attending sites from Mackay to Mount Isa to Western Australia.
Built for operational businesses
We speak the language of mining contractors, freight operators, civil SMEs, and agribusiness. Emissions tied to litres of diesel, kilometres driven, kilograms of fertiliser. No partner-review queues, no SaaS lock-in.
Or ask without leaving the page
Three fields. Submits here. We reply within 24 hours, often same business day if before 2 pm AEST.
Ready to scope your AASB S2 readiness?
Pick whichever feels right. 30-minute call to talk it through, or email us your situation and we'll reply within 24 hours with a tailored next step.
Read deeper
Background and methodology
- AASB S2 service page → - full methodology, scope, and how engagement runs week by week.
- Why the Scope 3 grace period is not a strategy → - what to do with the 12-month deferral.
- Free 4-pillar readiness self-check → - score yourself across governance, strategy, risk, and metrics.
Important: information only, not advice
This page provides general information about AASB S2 mandatory climate reporting and operational steps to prepare. It is not legal, financial, accounting, audit, or investment advice. AASB S2 obligations depend on your entity's structure, size, and corporate group. Always confirm your reporting obligations and disclosure approach with your legal advisor, auditor, and accountant. Aethiro Pty Ltd does not provide legal, financial, or assurance services and is not a registered tax or financial adviser.