ISO 14068-1 Carbon Neutrality — Methodology and Calculation Approach
Carbon neutrality has spent a decade as a marketing word — claimed loosely, verified rarely, and propped up almost entirely by cheap avoidance offsets. ISO 14068-1:2023 ends that by replacing PAS 2060 with a verifiable, hierarchy-led methodology that puts real reductions ahead of credits and forces every claim through independent verification. Test a claim against the reduction hierarchy in the ISO 14068 Carbon Neutrality Calculator.
If your neutrality claim cannot survive an ISO 14064-3 verifier reading clause 13, it is not a carbon neutrality claim — it is exposure.
ISO 14068-1 requires a subject to quantify its carbon footprint, then reduce emissions and enhance removals as the priority, offsetting only the residual with high-quality credits. The claim is valid only when the full hierarchy is followed, a public report is issued, and the claim is independently verified.
What ISO 14068-1 Covers and Where It Sits
ISO 14068-1:2023, Climate change management — Transition to net zero — Part 1: Carbon neutrality, was published in November 2023. It specifies principles, requirements, and guidance for achieving and demonstrating carbon neutrality for a defined subject through the quantification, reduction, removal, and offsetting of greenhouse gas emissions. It is the carbon-neutrality member of the ISO 14060 family and sits under the ISO Net Zero Guidelines published at COP27.
The standard does not invent its own accounting. It builds on existing ISO machinery: organisational footprints are quantified to ISO 14064-1, product footprints to ISO 14067, and claims are verified to ISO 14064-3. ISO 14068-1 is the layer that defines what “neutral” means and the conditions under which the word may be used.
A methodology page is the execution layer. It takes the definition from the glossary, the accounting rules from the quantification standards, and the neutrality requirements from ISO 14068-1, and turns them into an ordered, auditable workflow you can run end to end.
Carbon neutrality vs net zero vs the withdrawn PAS 2060
These three terms are routinely conflated, and the conflation is the source of most greenwashing exposure. They are not the same instrument.
Carbon neutrality (ISO 14068-1) is a balance achieved for a defined subject in a defined period — gross footprint counterbalanced by reductions, removals, and offsetting of the residual. Net zero (SBTi Corporate Net-Zero Standard) is a science-based end state requiring a 90–95% absolute cut with only permanent removal for residuals, on a 1.5°C trajectory. PAS 2060 was the UK specification that 14068-1 supersedes — it is being withdrawn 24 months after the November 2023 publication of ISO 14068-1, i.e. by November 2025. A neutrality claim is achievable now; net zero is a target for 2050. They can coexist, but a neutrality claim is not a net-zero claim.
The substantive differences between PAS 2060 and ISO 14068-1 matter for any organisation already holding a PAS 2060 declaration. ISO 14068-1 places markedly greater weight on Scope 3 accountability, on reductions and removals taking precedence over offsetting, and on a transition over time away from avoidance credits toward removal credits. An organisation transitioning from PAS 2060 should expect its offset-heavy strategy to require restructuring, not relabelling.
Step 1 — Define the Subject and Carbon Footprint Boundary
ISO 14068-1 applies to a subject, not only to an organisation. The subject can be an organisation, a product, a service, an event, a building, or a financial portfolio. Defining the subject precisely is the first methodological act, because the subject determines which companion standard quantifies the footprint and what the boundary must contain.
Route your subject to the right quantification standard
ISO 14068-1 sets the neutrality rules. The carbon footprint itself is quantified under whichever ISO standard matches the subject.
The boundary, once drawn, governs everything downstream. For an organisational subject the boundary is set on a control basis — usually operational control — and must be held constant across the reporting period so that the gross footprint, the reductions, and the offset quantity all reconcile against the same denominator. A boundary that moves between periods makes a neutrality claim unverifiable.
Step 2 — Quantify the Carbon Footprint of the Subject (CFP)
The carbon footprint of the subject — the CFP in the standard’s language — is the gross quantity of greenhouse gases attributable to the subject in the reporting period, expressed in tonnes of CO₂e. It is the figure that the entire neutrality calculation contracts against, so it must be complete before any reduction or offset is applied.
GWP basis and gas coverage
ISO 14068-1 requires all seven Kyoto greenhouse gases to be converted to CO₂e using a stated global warming potential basis. For corporate reporting aligned to the GHG Protocol, CSRD, and CDP, that basis is IPCC AR6 GWP-100. The two gases that most often dominate non-CO₂ footprints carry the following AR6 GWP-100 values:
| Gas | AR6 GWP-100 (basis for CO₂e) | Typical source |
|---|---|---|
| Carbon dioxide (CO₂) | 1 | Fuel combustion, process emissions |
| Methane, fossil (CH₄) | 29.8 | Gas leakage, combustion slip |
| Nitrous oxide (N₂O) | 273 | Combustion, soils, agriculture |
Full IPCC AR6 GWP-100 dataset · IPCC AR6 reference
Every gas in a single CFP must be converted on the same GWP basis. AR6 GWP-100 for corporate inventories; AR5 GWP-100 only for DEFRA-flavoured regulatory line items, which carry the AR5 basis as part of their definition. Mixing AR5 and AR6 values within one total produces a footprint that reconciles against neither, and a verifier will flag it.
The Scope 3 expectation
ISO 14068-1 carries a stronger Scope 3 expectation than PAS 2060 did. For an organisational subject, a credible CFP must include the material categories of the value chain quantified to the GHG Protocol Scope 3 Standard. A neutrality claim drawn around Scope 1 and Scope 2 only, while material Scope 3 emissions sit outside the boundary, is the single most common way a 14068 claim collapses under scrutiny — the boundary excludes the bulk of the actual footprint.
Building the organisational footprint that feeds your CFP? Start with the Scope 1 combustion calculator and the Scope 2 electricity calculator.
Step 3 — Apply the Carbon Neutrality Hierarchy
This is the methodological core of ISO 14068-1, and the requirement that most clearly separates it from a buy-credits-and-claim approach. The standard establishes a strict priority order: emission reductions and removal enhancements within the subject’s boundary take precedence over offsetting. Offsetting is permitted only for the residual that remains after all economically viable reductions and removals have been implemented.
Reduce emissions at sourceFirst priority
Direct and indirect reductions across the subject’s boundary — fuel switching, efficiency, electrification, renewable procurement, value-chain engagement. The standard expects reductions to form the core of the strategy, with a documented plan, timelines, and measurable outcomes.
Enhance removals within the boundarySecond priority
Increase removals the subject controls — afforestation on owned land, soil carbon management, on-site capture and storage. These are removals inside the boundary, distinct from purchased removal credits, which fall under offsetting.
Offset the residual onlyLast resort
Purchase and retire high-quality carbon credits to counterbalance the residual footprint that cannot yet be eliminated. Offsetting cannot be the primary strategy, and the credit mix is required to transition toward removals over time.
The order is non-negotiable and verifiable. A verifier examining a 14068 claim will ask to see the reduction plan and evidence of implementation before accepting any offset volume. An organisation that quantifies a footprint and immediately buys credits to match it has not followed the methodology, regardless of how many credits it retired.
Step 4 — The Carbon Neutrality Management Plan (CNMP)
The hierarchy is operationalised through a Carbon Neutrality Management Plan. The CNMP is the governance document that the standard requires, and it is what makes the difference between a one-off claim and a maintained commitment. It must set out short-term and long-term targets for minimising the carbon footprint, the specific reduction and removal measures, the responsibilities and timelines, and the offsetting approach for the residual.
The plan is not static. ISO 14068-1 requires ongoing monitoring and periodic review, and it requires the offsetting component to evolve — the proportion of removal-based credits in the offset mix is expected to rise over time, aligning the neutrality pathway with the longer-term shift toward permanent removal that underpins genuine net-zero commitments.
A well-constructed CNMP uses the same reduction trajectory the organisation would set for a science-based target. The reduction targets in the plan can be set to the SBTi Absolute Contraction rate so that the neutrality claim today and the net-zero target for 2050 share one trajectory — see the SBTi Absolute Contraction methodology and the SBTi net-zero target methodology.
Step 5 — Offsetting the Residual Footprint
Only the residual footprint — what remains after reductions and within-boundary removals — may be offset, and only with credits that meet the standard’s quality criteria. ISO 14068-1 raises the bar materially above the offset practice that PAS 2060 tolerated.
Carbon credit quality criteria
Every credit used toward a 14068 claim must satisfy each of the following. A failure on any one criterion disqualifies the credit.
The reductions-to-removals transition
ISO 14068-1 does not treat avoidance credits and removal credits as interchangeable. It requires the offsetting mix to shift over time toward removals, on the logic that genuine long-term neutrality depends on durable carbon removal rather than avoided emissions elsewhere. This is the requirement most likely to surprise an organisation transitioning from PAS 2060, where a portfolio of cheap avoidance credits could carry a claim indefinitely. Under 14068, that portfolio must be on a documented trajectory toward removal-based credits. Sectoral programmes such as CORSIA illustrate the same direction of travel in aviation.
Step 6 — The Neutrality Equation (Worked Examples)
The arithmetic of a 14068 claim is straightforward once the hierarchy has been applied. The residual footprint is the gross CFP less the reductions achieved and the within-boundary removals; the offset volume retired must equal that residual.
Worked Example 1 — Organisation-level neutrality claim
Gross CFP (S1+S2+material S3): 50,000 tCO₂e
Reductions achieved vs 2024 (efficiency + renewable PPA): 6,000 tCO₂e
Within-boundary removals (afforestation on owned land): 500 tCO₂e
All gases converted on AR6 GWP-100 basis. Boundary: operational control, held constant year on year.
Worked Example 2 — Product-level neutrality claim
Gross product CFP (cradle-to-grave): 12.0 kg CO₂e/unit
Reductions vs prior design (recycled input + lower-carbon logistics): 3.5 kg CO₂e/unit
Within-boundary removals: 0 kg CO₂e/unit (none controlled at product level)
Annual production: 200,000 units
Life-cycle basis aligned to ISO 14040/14044; AR6 GWP-100.
Offset-cost sensitivity by credit type
The choice of credit type drives the cost of neutralising a given residual, and ISO 14068-1’s push toward removals has a direct budget consequence: durable removal credits cost far more than avoidance credits. The chart below shows the indicative annual offset cost for Example 1’s 43,500 tCO₂e residual across credit types. Prices are illustrative market ranges, not MasterBrain values, and should be checked against current credit markets before use.
Indicative voluntary-market price ranges, not GreenCalculus MasterBrain values — verify against current credit markets. The point is the order-of-magnitude gap: the reductions-to-removals transition moves an organisation up this chart, which is why ISO 14068-1’s hierarchy puts in-boundary reduction first. Every tonne reduced at source is a tonne that never needs a removal credit.
Step 7 — Making and Reporting the Carbon Neutrality Claim
Clause 13 of ISO 14068-1 sets the conditions under which a carbon neutrality claim may be made, and they are cumulative — all must hold.
- All requirements of the standard are met — the full hierarchy has been applied, the residual offset with qualifying credits, and the CNMP is in place.
- A public report is issued. The organisation must publish a publicly available carbon neutrality report covering the management plan, the carbon footprint determined, the reduction and removal measures, the credits used, and their impact. An executive summary must be published for each reporting period.
- The claim is independently verified. The correctness and integrity of the information must be verified to ISO 14064-3. The object of verification is the entity making the claim — the carbon programmes and credits purchased for offsetting are not themselves verified in this process.
- Advertising the claim links to the report. Any external claim of carbon neutrality must link to the relevant report and provide background that accurately summarises how neutrality was achieved, including measures to avoid double counting.
A frequent misunderstanding: verification under clause 13 confirms that the claiming entity followed the standard and reported correctly — it does not re-verify the carbon credit programmes themselves. Credit quality is assured upstream through the issuing programme’s own certification. An organisation cannot lean on “our credits are Verra-certified” as a substitute for verifying its own claim.
ISO 14068 vs PAS 2060 vs SBTi Net-Zero
The three instruments are often presented as alternatives. They are better understood as a succession (PAS 2060 → ISO 14068) and a complement (ISO 14068 alongside SBTi net zero).
| Dimension | PAS 2060 (withdrawn) | ISO 14068-1 | SBTi Net-Zero |
|---|---|---|---|
| Type of claim | Carbon neutrality (period balance) | Carbon neutrality (period balance) | Science-based end state by 2050 |
| Status | Being withdrawn (24 months after Nov 2023) | Current international standard | Current; validated targets |
| Reduction requirement | Reduction plan required, lighter weight | Reductions take precedence over offsets; documented hierarchy | 90–95% absolute reduction |
| Offsetting role | Permitted broadly, including avoidance | Residual only; mix transitions to removals over time | Permanent removal for the 5–10% residual only |
| Scope 3 | Lighter expectation | Material categories expected in boundary | Required if ≥40% of total; always for net-zero |
| Verification | Independent verification of claim | ISO 14064-3 verification of the entity/claim | SBTi validation of the target |
| Horizon | Annual / per-period | Annual / per-period, on a pathway | Long-term (2050) |
An organisation can hold an ISO 14068-1 carbon neutrality claim for the current period and an SBTi-validated net-zero target for 2050 at the same time. The neutrality claim demonstrates balance now; the net-zero target demonstrates a science-based reduction trajectory. Presenting a 14068 neutrality claim as equivalent to net zero is a misrepresentation and a greenwashing exposure under regimes such as CSRD ESRS E1.
Non-Conformities That Fail Verification
Each item below is a recurring reason a 14068 claim fails independent verification. Most trace back to skipping or shortcutting the hierarchy.
| Non-conformity | What happens | How to avoid |
|---|---|---|
| Offset-first, reductions absent | Footprint quantified, credits bought to match, no reduction plan implemented. Fails the hierarchy outright. | Build and evidence the CNMP reduction measures before offsetting. Offsets cover only the documented residual. |
| Boundary excludes material Scope 3 | Claim drawn around S1+S2 while the bulk of the footprint sits in the value chain. The claim covers a fraction of the real footprint. | Include material Scope 3 categories per the GHG Protocol Scope 3 Standard in the CFP. |
| Low-quality or non-additional credits | Credits fail additionality, permanence, or double-counting tests. The residual is not genuinely neutralised. | Use credits meeting all five quality criteria, certified under a recognised programme and retired against the claim. |
| No public report or executive summary | Claim made without the clause 13 public report. The claim is non-conformant regardless of the underlying maths. | Publish the carbon neutrality report and an executive summary for each reporting period before advertising the claim. |
| Boundary moved between periods | Gross footprint, reductions, and offsets no longer reconcile against a common denominator. | Hold the boundary constant; restate the baseline transparently if the boundary must change. |
| Mixed GWP bases in one footprint | AR5 and AR6 values combined in a single CFP; the total reconciles against neither basis. | Convert all gases on one basis — AR6 GWP-100 for corporate reporting. |
| Neutrality presented as net zero | The claim conflates a period balance with a science-based 2050 end state — a greenwashing exposure. | Label the claim as carbon neutrality; keep any net-zero target distinct and SBTi-validated. |
Implementation Workflow
The clause logic of ISO 14068-1 maps to an ordered sequence. Run it top to bottom; each step depends on the one before.
Pairing a neutrality claim with a science-based reduction trajectory? Confirm submission readiness with the SBTi Readiness Checklist.
Frequently Asked Questions
No. ISO 14068-1 carbon neutrality is a balance achieved for a defined subject in a defined period — gross footprint counterbalanced by reductions, within-boundary removals, and offsetting of the residual. Net zero, as defined by the SBTi Corporate Net-Zero Standard, is a science-based end state requiring a 90–95% absolute reduction with only permanent removal for the residual, on a 1.5°C trajectory to 2050. An organisation can hold both at once: a neutrality claim for the current period and a net-zero target for 2050. Presenting one as the other is a greenwashing exposure.
Yes. ISO 14068-1:2023 was published in November 2023 and supersedes PAS 2060, which is being withdrawn 24 months after that publication — by November 2025. The transition is not cosmetic: ISO 14068-1 places greater weight on Scope 3 accountability, requires reductions and removals to take precedence over offsetting, and requires the offset mix to shift toward removal credits over time. An organisation holding a PAS 2060 declaration built on cheap avoidance credits should expect to restructure its strategy, not simply relabel it.
No. The carbon neutrality hierarchy in ISO 14068-1 requires emission reductions and within-boundary removal enhancements to take precedence over offsetting. Offsetting is permitted only for the residual that remains after all economically viable reductions and removals have been implemented, and a verifier will ask to see the reduction plan and evidence of implementation before accepting any offset volume. An organisation that quantifies a footprint and immediately buys credits to match it has not followed the methodology, regardless of how many credits it retired.
Every credit must be real and measurable, additional, permanent, not double-counted, and independently certified and retired against the claim. A failure on any single criterion disqualifies the credit. Credits should be issued under a recognised programme such as Verra VCS or the Gold Standard. ISO 14068-1 also requires the offset mix to transition toward removal-based credits over time, rather than relying indefinitely on avoidance credits.
The CNMP is the governance document ISO 14068-1 requires. It sets out short-term and long-term targets for minimising the carbon footprint, the specific reduction and removal measures with responsibilities and timelines, and the offsetting approach for the residual. It is reviewed and updated periodically, and the offsetting component is expected to evolve toward removal-based credits. A well-built CNMP can use the same reduction trajectory an organisation sets for a science-based target, so the neutrality claim today and the net-zero target for 2050 share one pathway.
An independent verifier confirms the claim to ISO 14064-3. Under clause 13, the object of verification is the entity making the claim and the correctness and integrity of its reported information — not the carbon credit programmes themselves, whose quality is assured upstream through their issuing programmes. The claim is valid only when all requirements of the standard are met, a public carbon neutrality report and executive summary are published for the reporting period, and the claim is verified. Any external advertising of the claim must link to the report.
For an organisational subject, a credible carbon footprint must include the material categories of the value chain, quantified to the GHG Protocol Scope 3 Standard. ISO 14068-1 carries a stronger Scope 3 expectation than PAS 2060 did. A neutrality claim drawn around Scope 1 and Scope 2 only, while material Scope 3 emissions sit outside the boundary, is the most common reason a 14068 claim collapses under verification — the boundary excludes the bulk of the actual footprint.