ASRS has put repricing risk on the clock
Australian banks lose their AASB S2 liability shield at the end of 2027. Expect them to want verified NABERS data on every building they lend against.
The Australian Sustainability Reporting Standards came into force for financial years starting 1 January 2025. PwC has already reviewed 22 first-wave AASB S2 disclosures filed on the ASX by 27 February 2026. The first real data is on the record, and the commercial property sector is next.
Group 2 entities start reporting from 1 July 2026. Group 3 follows in 2027. If your company meets two of the three tests, revenue of $500 million, $1 billion in assets, or 500 staff, you’re already in Group 1. Every tier below is now counting down.
The date that matters more than the reporting date is 31 December 2027, when the modified liability regime expires. Until then, Scope 3 and financed emissions disclosures sit behind a shield. No civil claims, no class actions, no personal exposure for directors. From 1 January 2028, the shield is gone. Ordinary liability settings return. Every line in a financed emissions disclosure becomes the basis for litigation if it turns out to be wrong.
Most commercial owners are not Group 1 reporters, but their banks are, and the pressure arrives through the loan.
What your lender is doing right now
Banks, insurers, and asset managers report financed emissions under AASB S2 as Scope 3 Category 15. For a lender, financed emissions dwarf everything else on the footprint: CDP’s analysis of 322 financial institutions put them at over 700 times operational emissions. The commercial property loan book is a large share of that number. If they can’t verify the performance of the buildings they’ve financed, they can’t defend their disclosure in 2028.
The built environment is roughly 20% of Australia’s emissions, on CBRE’s count, so the property book carries a large part of the Category 15 number the bank has to defend.
The bank’s verification risk becomes your repricing risk.
The carrot is already priced in
Buildings with a current NABERS rating, an accurate energy baseline, and a defensible performance trajectory are about to become the preferred asset class on the loan book, because they’re the ones the bank can report with confidence.
Green loans and sustainability-linked facilities start asking for verified operational data instead of self-attested ESG questionnaires, and refinancing conversations in 2027 quietly sort the book into “defensible” and “needs a risk premium.”
Commercial real estate owners sitting on a NABERS rating from 2022 and an annual PDF from the facilities manager are not in the defensible bucket.
CBRE’s note to clients, Understanding sustainability ratings and their impact on the property lifecycle, says NABERS and Green Star ratings are now embedded in valuation and leasing decisions. The market moved before the regulation finished landing.
What the stick looks like
ASIC has said greenwashing won’t be an express 2026 enforcement priority. That’s been mistranslated as “ASIC is easing off.” It isn’t. In October 2025 ASIC took Fiducian to court over the way its ESG fund’s product disclosure statement described what the fund did. In March 2025 the Federal Court fined Active Super $10.5 million for holding coal, gambling, and Russian investments it had told members were excluded. The ACCC has kept greenwashing as an explicit 2026 enforcement priority and runs coordinated action with ASIC and APRA.
The commercial side is sharper. Once the liability shield expires, the bank’s general counsel starts pushing verification language into loan documents. Expect covenants that require annual NABERS ratings on buildings above 1,000 m². Performance data sharing clauses become standard. Sustainability-linked margin ratchets start being tied to verified operational ratings instead of intention-based KPIs.
Treat verification as the deadline. Your bank needs verifiable data to file its 2028 Scope 3 numbers. That means your building’s performance data, in a form an auditor will accept.
What to do this quarter
Pull the NABERS ratings across the portfolio and note the rating date and the expiry, because anything older than 12 months is not audit-grade for a bank’s financed emissions file. Map each asset to its lender and the financing vehicle, since green loans, sustainability-linked facilities, and vanilla debt face different verification pressures. Then find the gap between intended upgrade works and measured outcomes. An upgrade that did not move the operational rating does not help your bank defend its disclosure.
Then close the loop: commission the assessment, book the capital works, measure the outcome, and store the verification file where the lender can get at it. Include the pre-upgrade baseline, the scope of works delivered, the post-upgrade measured performance, and the assessor’s sign-off. That’s the audit trail your bank’s financed emissions file needs.
A plaque in the lobby or a report in a drawer proves nothing to an auditor.
You’ve got roughly 18 months before Group 2 reports land. Use them.
Compliance is verified from assessment to outcome, or it is just paperwork.
This is why we built Tether. A Performance Review prepares the evidence an obligation needs, then tracks it from assessment to a defensible outcome.