AASB S2 · IFRS S2
Group 1 · 2 · 3
AASB S2 Compliance Reporting Minus the Headache.
Done-for-you climate reporting, end-to-end from data, disclosure and audit ready sustainability reporting trusted by leading accounting firms and auditors.
Over 1,500 businesses are facing mandatory reporting this year. Carbonhalo is experiencing high demand and will have a limited intake for FY27. Reserve your place, for free.
Working alongside
Why first-time reporters call us
Compliance without the consulting invoice.
No climate expertise internally. No budget for a Big-Four consultant or new hire. No interest in learning another piece of software that will not get you compliant. You just need the reporting done, properly.
We do, you review
We're your outsourced team, not a reviewer sending you homework. We measure, draft and build the audit justification. You approve the result.
Built specifically for a simplified audit
Working papers, methodology notes and a disclosure index your auditor can follow line by line, assembled as we go rather than after the questions start.
Nothing to hire, nothing to install
You do not need a sustainability team, no new headcount and no system to integrate.
Fixed monthly price
One number upfront, no hourly drift and no surprises at the end.
Why businesses line up to join
Pragmatic, tech-enabled, no jargon.
We’re not here to sell you a transformation. We’re here to get your reporting done, properly, without the headache. Real experts do the work, backed by tech that keeps the cost down and the numbers traceable. No frills, no jargon, no invoice that needs a committee to approve it.
- Real people, not a template: every disclosure is built and reviewed by experts in the field, people who do this for a living, not a chatbot or a checklist.
- Tech that keeps the cost down: our system pulls straight from your data and detects gaps immediately, so you get expert judgement without paying for hours of manual work.
- One stop, start to finish: baseline through to board-ready report, one team, nothing to stitch together yourself.
- Trusted by big four and mid-tier audit firms: our output is built to a standard they already recognise, which is exactly why they refer clients to us.
working paper / scope 1 / fleet diesel
source
BP fuel card statement, FY26 Q3
activity
48,120 L diesel oil
factor
2.70 kg CO2-e / L NGER Sch.1 Pt.2
calculation
48,120 x 2.70 / 1000
result
129.9 tCO2-e
evidence
INV-40118.pdf · reconciled to GL 6120
Every figure ties back to a source document
An auditor will ask for
Evidence that ties back to a document.
Complying with AASB S2 means producing a lot of documents and maintaining an audit trail, and everything has to meet stringent standards. You must be able to show where a figure came from. We build the paper trail as the work happens, so when the auditor asks, the answer is already in the file.
The document
What it covers
Governance terms of reference
How this sits within your existing board and management structure.
Industry and peer analysis
Comparative analysis across sector peers on climate exposure and reporting maturity.
Risk and opportunity register
A full sweep of climate risks and opportunities, prioritised and assessed for disclosure.
Scenario and resilience analysis
How your business stands up under different climate scenarios.
Financial impact assessment
The financial exposure behind the material risks and opportunities.
Materiality memorandum
The basis for what is included in your disclosures.
Emissions inventory report
Scope 1, 2 and 3 baselines, calculated and tied back to line level numbers.
Resolutions
Drafted resolutions aligned to the key determinations in your sustainability report.
Sustainability report
The final, board-ready disclosure, formatted for your auditor.
How the engagement runs
Three streams, two people.
Stream 01
Emissions baseline
Boundary set, data sources mapped and the reporting year fixed, then Scope 1, Scope 2 and Scope 3 measured from your own records.
Stream 02
Disclosures
Documents and disclosures created to align to the four AASB S2 pillars.
Stream 03
Sustainability report
The full report assembled, cross-referenced and issued to you for board approval.
Audit
Audit support
Working papers handed over, and the auditor’s questions answered directly by us rather than by your finance team.
What we need from you
Just two key internal contacts.
Business Data
Someone who can provide your activity data, fuel and energy and the like, so we can build your emissions inventory.
Governance & Risk
Someone who knows the governance structure and can sign off on the risks within your business.
Who is captured
Find your group, then your deadline.
Group
Revenue
Gross assets
Employees
First report
Group 1
> $500m
> $1b
> 500
30 Jun 2026
Group 2
> $200m
> $500m
> 250
30 Jun 2027
Group 3
> $50m
> $25m
> 100
30 Jun 2028
Meet two of the three tests and you are captured. Consolidated groups apply the tests at group level.
“We are highly complimentary of the quality, completeness and professionalism of Carbonhalo’s climate reporting work. The standard of documentation significantly assists audit.”
Built for assurance
Reporting auditors can work with.
Our reporting is built around traceable data, transparent calculations and clear supporting documentation, giving assurance teams the evidence they need and making the review process smoother.
Australian businesses supported
AASB S2 compliant output
industries, heavy industry to retail
audit firms refer clients to us
Start with a free compliance assessment.
Thirty minutes. We tell you which group captures you, what data you already hold, and what it will cost.