Glossary›Emissions accounting and measurement›Carbon neutral vs net zero
Glossary term
Cluster D · D34
Tier 1 · differentiator
Carbon neutral vs net zero
Definition
Carbon neutral means an organisation’s measured emissions for a period have been balanced by an equivalent quantity of purchased and cancelled carbon credits. Net zero means emissions have been reduced in line with a science-aligned trajectory, with only a small residual balanced by permanent removals. Carbon neutral is a claim about a year; net zero is a commitment about a trajectory.
No governing instrument in Australian statutory reporting
· practice ·
Voluntary claims
On this page
In practice
Neither term appears as a defined requirement in AASB S2. Both appear constantly in marketing, and the gap between them is where Australian greenwashing enforcement has concentrated.
The structural difference is order of operations. Carbon neutral permits offsetting first: an entity can measure, buy credits to match the total, and make the claim in year one without reducing anything. Net zero requires reduction first, with offsetting or removal confined to a residual that cannot be eliminated, against a stated target year and a stated pathway.
Carbon neutral
Net zero
Order of operations
Offset first is permitted; no reduction required
Reduce first; offsetting confined to an irreducible residual
Time frame
A point-in-time claim about one year, typically renewed annually
A forward commitment against a stated target year and pathway
Certification
Usually certified against a defined scheme
No single certifying authority in Australia; credibility rests on the disclosed transition plan
Instrument for the residual
Reduction or removal credits
Conventionally permanent removals, a materially more expensive and scarcer instrument
For a captured entity the exposure is asymmetric. Neither claim is required. Both are voluntary. But once made, a claim about emissions becomes a representation, and AASB S2 requires a transition plan to be disclosed if the entity has one. An entity announcing net zero by 2040 with no costed pathway behind it has created a disclosure obligation and a misleading-conduct question in the same sentence.
What the assurer does with it
These claims are not usually the subject matter of a statutory assurance engagement, but the assurer meets them in two places and both matter.
First, consistency. The assurer reads the annual report, the website and marketing material alongside the sustainability report, and tests whether the climate claims are consistent with the disclosed figures and targets. A website claiming carbon neutral operations while the sustainability report discloses rising gross Scope 1 and 2 is an inconsistency the assurer must raise, because gross emissions are what AASB S2 requires and the offsetting does not reduce them.
Second, netting. They check that no credit or offset has been deducted from the disclosed gross emissions figures. Where a target is disclosed, they ask what portion relies on offsets rather than reduction, because AASB S2 requires that to be stated.
They accept a claim that is separately labelled, supported by credit retirement evidence, and clearly distinguished from the gross emissions disclosure. They reject any presentation where the offset is netted into the reported tonnage, and any net zero commitment described as a target with no stated scope, base year or pathway.
Commonly confused with
Each other, most of all. Also confused with “climate neutral” and “carbon negative”, which carry no fixed Australian definition and should not be used in a disclosure document at all.
Timing and relief
The Australian certification pathway for carbon neutral claims is being withdrawn. DCCEEW confirmed the decision to close Climate Active in a July 2026 consultation; consultation closed 18 September 2026, a decision was expected before the end of 2026, and certification is expected to cease on 30 June 2027. “Carbon neutral” loses its Australian certification anchor at that point. The Climate Active entry carries the detail and the re-review date.
Sources
1
2
3
Review status
Review required
Last reviewed
15 September 2026
Editorial pass, unsigned
Reviewer required
Registered company auditor
Next scheduled review
30 June 2027
expected Climate Active certification cessation
Part of
Cluster D, Emissions accounting and measurement
49 terms from the head term carbon accounting down to individual Scope 3 categories and the mechanics of factors, boundaries and data quality. The largest cluster in the glossary.
Related terms
The Australian certification pathway for carbon neutral claims, now closing
Why only one of the two moves the disclosed figure
The instrument a carbon neutral claim is settled with
Related questions
Are directors personally liable for climate disclosures?
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Directors carry their ordinary care and diligence duties in relation to the sustainability report, and they sign a declaration about it. A temporary and partial protection applies to some forward-looking content, but it is narrower than it is usually described and it is closing. This is the one answer that should be read together with your own legal advice.
What does the board have to sign?
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The directors’ declaration in the sustainability report. For financial years commencing between 1 January 2025 and 31 December 2027, directors declare they have taken reasonable steps to ensure the report complies with the Corporations Act. From financial years commencing 1 January 2028, they declare their opinion that it does comply.
Other terms in this cluster
Carbon neutral vs net zero