SBTi Net-Zero Target
A near-term science-based target tells you how fast to cut emissions this decade. A net-zero target is a different commitment entirely: a binding endpoint of at least 90% absolute reduction across your full value chain, with the small remainder permanently removed from the atmosphere — not offset, not avoided, removed.
Most companies size the cut and forget the residual. The residual is where net-zero targets fail validation.
An SBTi net-zero target requires at least a 90% absolute reduction in Scope 1+2+3 versus base year by no later than 2050, with the residual neutralised by permanent carbon dioxide removal. Offsets do not count toward the reduction.
This methodology covers the long-term net-zero target as defined under the SBTi Corporate Net-Zero Standard: how to size the 90% reduction endpoint, how to quantify and neutralise residual emissions with permanent removals, how to construct the trajectory linking your near-term target to the 2050 endpoint, and how the target is validated and maintained. The near-term annual-rate mechanic — the Absolute Contraction Approach — is the upstream input to this page and is documented separately.
What a Net-Zero Target Is (and Is Not)
Under the SBTi framework, a net-zero target is not a synonym for carbon neutrality, and it is not a more ambitious version of a near-term target. It is a specific, validated commitment with three defining properties: a deep absolute reduction across the entire value chain, a hard date no later than 2050, and a requirement that whatever emissions remain be permanently removed rather than compensated. The distinction matters because each term carries different obligations, and conflating them is the most common conceptual error in target-setting.
| Property | Near-term SBT | SBTi net-zero target | Carbon neutral (PAS 2060 / ISO 14068) |
|---|---|---|---|
| Reduction depth | At least 4.2% p.a. linear over 5–10 yrs | at least 90% absolute by 2050 | No mandated reduction depth |
| Boundary | S1+2 minimum; S3 if ≥40% of total | Full S1+2+3, no materiality exception | Defined scope; often partial |
| Role of offsets | Not counted toward target | Not counted; residual removed, not offset | Offsets permitted to reach the claim |
| Residual treatment | N/A | Up to 10% neutralised by permanent CDR | Compensated by any qualifying credit |
| Endpoint date | 2030 typical | 2050 at the latest | Annual claim, renewed |
A net-zero target is reached when emissions are reduced to a residual minimum and that residual is balanced by permanent removals. Carbon neutrality can be claimed by purchasing offsets against an unreduced footprint; an SBTi net-zero target cannot. The reduction must be real, absolute, and across the full value chain — removals address only what is technically unavoidable after deep decarbonisation.
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The Two-Target Architecture: Near-Term + Long-Term
The Corporate Net-Zero Standard requires every company to set two aligned targets, validated together: a near-term target covering the next 5–10 years, and a long-term net-zero target with a 2050 endpoint. A net-zero target cannot be validated without a near-term target. The near-term target governs the pace of this decade; the long-term target governs the destination. They share a base year and, where the near-term target includes Scope 3, an inventory boundary.
What this page covers vs the Absolute Contraction Approach
The near-term half of the architecture — working out the minimum linear rate (floors 4.2% for Scope 1+2 and 2.5% for Scope 3), applying it across the target window, running the 40% Scope 3 materiality test, and handling base-year restatement — is the Absolute Contraction Approach methodology. That page is the canonical reference for the near-term mechanic; this page does not duplicate it. You will need the near-term endpoint it produces as the starting point for the long-term trajectory in Step 3, and you can compute it with the SBTi Near-Term Target Calculator.
From here, this page is concerned exclusively with the long-term net-zero target: the endpoint, the residual, the removals, and the lifecycle.
The Four Pillars of a Validated Net-Zero Target
A net-zero target that passes SBTi validation rests on four requirements. The first two are reduction obligations; the third is the neutralisation obligation; the fourth is a recommendation that companies routinely mistake for a reduction credit.
1 — Deep decarbonisation
at least 90% absolute reduction in Scope 1+2+3 versus base year, achieved through real operational and value-chain abatement. This is the dominant requirement — the overwhelming majority of the target is delivered by cutting, not removing.
2 — Bounded residual
No more than 10% of base-year emissions may remain at the endpoint on the cross-sector path. The residual is the technically unavoidable remainder after deep decarbonisation — not a discretionary allowance to be filled with whatever is hard to cut.
3 — Permanent neutralisation
The residual must be neutralised with permanent carbon dioxide removal — durable storage on the order of centuries to millennia. Avoidance credits and short-lived removals do not qualify.
4 — Beyond value chain mitigation
SBTi recommends companies invest in mitigation outside their value chain (BVCM) during the transition. This is encouraged but does not count toward the reduction target — a frequent source of double-counting claims.
Step 1 — Sizing the Endpoint: at least 90% Absolute Reduction
The endpoint calculation is deliberately simple — its difficulty lies in the boundary, not the arithmetic. You apply the required reduction percentage to your full Scope 1+2+3 base-year inventory to obtain the maximum residual allowable at the endpoint year.
Eresidual = Ebase × (1 − R) — where Ebase is full-value-chain base-year emissions, and R is the required reduction (at least 0.90). Unlike the near-term ACA formula, this is a single endpoint reduction, not an annual rate — there is no exponent because net-zero specifies a destination, not a pace.
The 90% minimum
The cross-sector minimum is at least a 90% absolute reduction. Corporate Net-Zero Standard V1.3.1 sets no general 95% tier. A company may go further than 90%, and some sector pathways set different figures, so check your sector guidance. Where a sector pathway exists, it governs.
| Pathway | Required reduction | Max residual | Typical applicability |
|---|---|---|---|
| 90% floor | 90% absolute | 10% of base year | Hard-to-abate process emissions, residual agriculture, aviation in value chain |
| Going further (voluntary) | Above 90%, e.g. 95% | Less than 10%, e.g. 5% | Any company that chooses a deeper target |
Sector-specific residual allowances
The 10% maximum is a cross-sector figure. Sector-specific guidance under development within SBTi may set tighter or differently structured residual allowances for individual sectors. Where a sector pathway exists, it governs; the corporate default applies only in its absence. Companies with material land-sector emissions also carry a separate FLAG target with its own reduction basis — covered in edge cases.
Step 2 — Sizing and Neutralising Residual Emissions
The residual is the part of a net-zero target that practitioners under-plan and validators scrutinise. Two distinct calculations are involved: how large the residual may be (a reduction question, answered in Step 1) and how it will be neutralised (a removals question, answered here).
Residual eligibility — what may remain
The residual must represent genuinely unavoidable emissions after deep decarbonisation — not emissions that are merely expensive or inconvenient to cut. SBTi expects companies to demonstrate that the residual cannot reasonably be abated with foreseeable technology, not simply that abating it would reduce margins. Treating the 10% allowance as a budget to be spent on the hardest cuts, rather than a ceiling on the truly unavoidable, is a validation risk.
Permanent removal requirements
Neutralisation requires carbon dioxide removal with durable storage. The accounting basis for removals is the GHG Protocol Land Sector and Removals Guidance (2026), which distinguishes removal permanence by storage medium. SBTi v2.0 requires neutralisation by removals whose permanence is appropriate to the atmospheric lifetime of the emissions being neutralised — in practice, durable geological or mineral storage rather than short-cycle biological storage.
| Removal type | Storage medium | Indicative permanence | Net-zero eligibility |
|---|---|---|---|
| Direct air capture + geological storage | Deep saline / basalt formations | ≥1,000 years | Qualifies |
| Enhanced mineralisation | Carbonate mineral lock-up | ≥10,000 years | Qualifies |
| Bioenergy with carbon capture (BECCS) | Geological storage | ≥1,000 years | Qualifies (storage-dependent) |
| Biochar | Soil carbon, stabilised | Decades–centuries | Conditional on durability evidence |
| Afforestation / reforestation | Living biomass | Decades, reversal-prone | Does not qualify for neutralisation |
| Avoidance offsets (REDD+, avoided methane) | None — avoided emission | N/A | Does not qualify |
The single largest error in net-zero residual planning is treating avoidance credits — forest protection, avoided methane, renewable energy certificates — as equivalent to removal. They are not. Avoidance prevents an emission elsewhere; it does not extract CO₂ from the atmosphere. Only durable removal neutralises a residual under SBTi v2.0. A net-zero claim backed by avoidance credits fails validation and carries greenwashing exposure under CSRD ESRS E1.
Removal-volume and removal-cost planning
The required removal volume equals the residual: every tonne remaining at the endpoint must be neutralised, every year, in perpetuity from the endpoint onward. This converts the residual into a standing operating liability, and the cost of that liability is a material multi-decade planning input that few targets quantify at the point of commitment.
At an illustrative removal price of $200–$500 per tonne, an 8,200 tCO₂e residual represents an annual neutralisation cost in the range of $1.6M to $4.1M, recurring every year from the endpoint forward. Sizing the residual smaller — by cutting deeper than the 90% minimum — directly reduces this perpetual liability. The cost arithmetic is one of the strongest internal arguments for pushing decarbonisation as deep as the sector allows.
Step 3 — Constructing the Long-Term Trajectory
SBTi validates two endpoints — the near-term ceiling and the 2050 net-zero endpoint — but companies must disclose annual progress against a defined trajectory connecting them. The trajectory is what CDP scoring and CSRD ESRS E1 measure you against year on year.
Linking the near-term endpoint to the 2050 endpoint
The standard construction is two-phase: follow the linear near-term rate (from the Absolute Contraction Approach) through the near-term endpoint, then interpolate linearly from that endpoint to the net-zero endpoint at 2050. The illustration below uses a manufacturer with an 82,000 tCO₂e full-value-chain base and a 90% pathway, with a near-term 2030 ceiling carried over from the company’s validated near-term target.
| Year | Phase | Required ceiling (tCO₂e) | Cumulative reduction |
|---|---|---|---|
| 2020 (base) | Base year | 82,000 | 0.0% |
| 2030 | Near-term endpoint | 47,560 | 42.0% |
| 2035 | Long-term (linear) | 37,720 | 54.0% |
| 2040 | Long-term (linear) | 27,880 | 66.0% |
| 2045 | Long-term (linear) | 18,040 | 78.0% |
| 2050 | Net-zero endpoint | 8,200 | 90.0% |
Trajectory construction: 2020–2030 follows a 4.2% linear near-term rate to a 2030 ceiling of 47,560 tCO₂e; 2030–2050 follows a straight line from 47,560 to the 8,200 tCO₂e net-zero endpoint (10% of base). Intermediate ceilings are illustrative planning values, fixed for this worked illustration.
Linear convention vs front-loaded pathways
The linear long-term phase is a planning convention, not an SBTi mandate. SBTi specifies the endpoint, not the shape of the path between the near-term ceiling and 2050. Companies may front-load reductions, commit to an earlier net-zero year, or follow a non-linear decarbonisation curve that matches their technology-deployment schedule. Front-loading reduces cumulative emissions and is generally the lower-risk path, because it builds slack against the endpoint rather than deferring the hardest cuts to the final decade.
A linear path to 2050 backloads the most difficult abatement into the period when removal costs and residual scrutiny are highest. Front-loading reductions in the 2030s — when abatement options are cheaper per tonne — shrinks both the cumulative emissions total and the eventual residual you must neutralise in perpetuity.
Step 4 — Boundary and Timing Requirements
The net-zero boundary is not negotiable and not subject to the materiality test that governs near-term Scope 3. Every category of the value chain is in scope at the net-zero level, and the endpoint date is capped.
| Requirement | Net-zero rule | Basis |
|---|---|---|
| Scope coverage | Full Scope 1+2+3, all material categories | GHG Protocol Scope 3 Standard |
| 40% materiality exception | Does not apply — Scope 3 always required | SBTi Corporate Net-Zero Standard |
| Endpoint date | No later than 2050 | SBTi Corporate Net-Zero Standard |
| Base year | Shared with the near-term target | GHG Protocol Corporate Standard |
| Removals accounting | Separate from gross inventory; never netted into reductions | GHG Protocol Land Sector and Removals (2026) |
Removals do not reduce your gross inventory and must never be subtracted from reported Scope 1+2+3 emissions. They are accounted as a separate line that neutralises the residual at the endpoint. Netting removals into the gross figure overstates decarbonisation progress and breaks the audit trail that ISO 14064-1 assurance depends on.
Worked Examples
Three complete endpoint calculations. All values are fixed audit records — they show the inputs, the formula, and the result, and all three reconcile. They are snapshots, not live references.
Example 1 — Manufacturer, 90% pathway with removal-cost projection
Inputs: full Scope 1+2+3 base year (2020) = 82,000 tCO₂e; hard-to-abate process emissions justify the 90% floor; endpoint 2050.
Formula: Eresidual = 82,000 × (1 − 0.90)
Result: reduction obligation 73,800 tCO₂e; residual 8,200 tCO₂e/yr; CDR cost at an illustrative $200–$500/t = $1.64M–$4.10M/yr in perpetuity from 2050.
Example 2 — Service company going further, 95% (voluntary)
Inputs: full Scope 1+2+3 base year (2021) = 24,000 tCO₂e; voluntary 95% target; endpoint 2045 (earlier than mandated).
Formula: Eresidual = 24,000 × (1 − 0.95)
Result: reduction obligation 22,800 tCO₂e; residual 1,200 tCO₂e/yr; CDR cost at an illustrative $200–$500/t = $0.24M–$0.60M/yr. The deeper cut shrinks the perpetual neutralisation liability to roughly an eighth of Example 1 despite a base year less than a third smaller.
Example 3 — FLAG-inclusive net-zero (parallel land target)
Inputs: energy/industry Scope 1+2+3 = 60,000 tCO₂e (90% pathway); material land-sector emissions = 18,000 tCO₂e, set under a parallel FLAG target with a 72% reduction basis.
Formula: energy/industry residual = 60,000 × (1 − 0.90) = 6,000; FLAG residual = 18,000 × (1 − 0.72) = 5,040
Result: combined 2050 neutralisation obligation = 11,040 tCO₂e/yr. The two targets are validated together but computed on separate bases — the FLAG residual is not subject to the same removal-permanence rule and follows SBTi FLAG guidance.
Governance, Validation, and the Review Lifecycle
A net-zero target is not a one-time submission. It is validated against the prevailing criteria, then maintained through a recurring review cycle and a set of recalculation triggers, with annual progress disclosed against the committed trajectory.
- Validation. The near-term and long-term targets are submitted and validated together against the current Corporate Net-Zero Standard criteria. A long-term target cannot be validated in isolation.
- The 5-year review cycle. Validated targets are subject to a mandatory review every five years, reassessing alignment with the latest criteria and raising ambition where required.
- Recalculation triggers. Significant boundary change (M&A, divestiture, methodology change above the recalculation threshold) or base-year restatement requires re-derivation of both targets and notification to SBTi.
- Progress disclosure. Annual emissions are disclosed against the committed trajectory under CDP scoring, CSRD ESRS E1, and IFRS S2. Trailing the trajectory is a disclosure event even when it is not a formal SBTi finding.
Edge Cases and Failure Modes
The net-zero target object behaves differently for several company types and breaks in several characteristic ways. The most consequential are below.
| Case | How it differs / fails | Handling |
|---|---|---|
| FLAG-inclusive companies | Land-sector emissions are not covered by the energy/industry net-zero pathway | Set a parallel FLAG target; neutralise both residuals at the endpoint (Example 3) |
| Financial institutions | Portfolio (financed) emissions dwarf operational emissions and follow different methods | Operational S1+2 follows this approach; portfolio targets follow PCAF + sector financial guidance |
| High-growth companies | Absolute base may understate future footprint; intensity framing tempting but non-conforming | Net-zero is absolute by construction — intensity approaches do not satisfy the endpoint |
| Residual creep | The 10% allowance is gradually reclassified to absorb hard cuts | Residual must be defensibly unavoidable; document abatement-potential analysis |
| Removal-portfolio reversal risk | Non-durable removals reverse, leaving the residual un-neutralised | Restrict neutralisation to high-permanence removals; diversify suppliers |
| Sector decarbonisation lag | Value-chain technology to abate Scope 3 does not exist yet at endpoint | Front-load feasible cuts; engage suppliers; size residual to genuine technical limits |
Implementation Workflow
The sequence below takes a company from inventory to a submitted, validated net-zero target. Each step depends on the one before it — the endpoint cannot be sized before the boundary is fixed, and removals cannot be planned before the residual is known.
- Complete a full-value-chain inventory. Net-zero requires every Scope 3 category; there is no materiality exception to hide behind.
- Fix and, if needed, restate the base year. Shared with the near-term target; restate for boundary changes per the GHG Protocol recalculation policy.
- Set the near-term target. Apply the Absolute Contraction Approach via the near-term calculator to produce the near-term ceiling.
- Size the net-zero endpoint. Apply at least 90% to the full base year; the choice is driven by sector abatement potential, not preference.
- Quantify and defend the residual. Demonstrate the residual is technically unavoidable; size it as small as the sector allows.
- Plan permanent removals. Match removal volume to residual; restrict to high-permanence removals; cost the perpetual liability.
- Construct the trajectory. Link the near-term ceiling to the 2050 endpoint; front-load where capital allows.
- Submit both targets together. Validation is joint; disclose annual progress thereafter under CDP, CSRD, and IFRS S2.
What the Calculator Handles vs What You Decide
A dedicated SBTi net-zero target calculator automates the endpoint and residual arithmetic and the removal-cost projection. The decisions below are upstream of any calculator — they determine the inputs the tool operates on, and the tool cannot make them for you.
The calculator handles
Endpoint sizing on the full base, residual volume, removal-cost projection across the price band, and the two-phase trajectory table from near-term ceiling to 2050.
You decide first
Boundary completeness, base-year selection and restatement, the size of the endpoint, residual defensibility, removal-permanence policy, and endpoint year if earlier than 2050.
Compute the near-term ceiling that feeds the long-term trajectory, then read the standard that governs validation.
To size the targets themselves, use the SBTi net-zero target calculator.
Methodology Metadata — For GHG Inventory Documentation
Copy into your GHG inventory methodology statement for ISO 14064-1 transparency compliance. Adjust the pathway line to reflect your own commitment.
| Methodology | GreenCalculus SBTi Net-Zero Target Methodology v1.0 (June 2026). |
| Reduction basis | at least 90% absolute reduction in Scope 1+2+3 versus base year by no later than 2050; residual neutralised by permanent carbon dioxide removal. |
| Target standard | SBTi Corporate Net-Zero Standard. |
| Accounting standard | GHG Protocol Corporate Standard and Scope 3 Standard for boundary and base year. |
| Removals standard | GHG Protocol Land Sector and Removals Guidance (2026) for removal accounting and permanence. |
| GWP basis | IPCC AR6 GWP-100 without climate-carbon cycle feedbacks. See IPCC AR6. |
| Disclosure framework | Annual trajectory disclosure aligned to CSRD ESRS E1, IFRS S2, and CDP scoring. |
Frequently Asked Questions
An SBTi net-zero target requires at least a 90% absolute reduction in Scope 1+2+3 emissions, with the small residual neutralised by permanent carbon dioxide removal. Carbon neutrality, as claimed under PAS 2060 or ISO 14068-1, can be reached by purchasing offsets against a largely unreduced footprint. The net-zero target mandates deep real reduction first and permits only durable removals — not avoidance offsets — for the remainder.
No. Offsets and avoidance credits do not count toward the 90% reduction, and they do not qualify to neutralise the residual. Only permanent carbon dioxide removal — durable geological or mineral storage — may neutralise the residual at the endpoint. Avoidance credits such as forest protection or avoided methane prevent emissions elsewhere; they do not remove CO₂ from the atmosphere, and a net-zero claim backed by them fails validation.
Yes. The Corporate Net-Zero Standard requires both, validated together. The near-term target — set with the Absolute Contraction Approach — governs the next 5–10 years; the long-term net-zero target governs the 2050 endpoint. A long-term target cannot be validated without the near-term one, and they share a base year and inventory boundary.
SBTi’s cross-sector endpoint is at least a 90% absolute reduction, and some sector pathways differ, so check your sector guidance. A larger residual carries a proportionally larger perpetual removal cost.
At current high-durability removal prices of roughly $200–$500 per tonne, the cost scales directly with residual size. An 8,200 tCO₂e residual (a 90% pathway on an 82,000 tCO₂e base) implies $1.6M–$4.1M per year, recurring every year from the endpoint onward. This makes the residual a standing multi-decade liability, and it is the strongest internal argument for cutting as deep as the sector allows.
No. Removals are accounted separately and never netted into gross Scope 1+2+3 emissions. Your reported inventory shows gross emissions; removals appear as a distinct line that neutralises the residual at the endpoint. Netting removals into the gross figure overstates decarbonisation and breaks the audit trail that ISO 14064-1 assurance requires.
A significant boundary change triggers recalculation. You restate the base year per the GHG Protocol recalculation policy, re-derive both the near-term and long-term targets on the restated base, and notify SBTi. The reduction percentages are unchanged; only the absolute base figure moves, which shifts every ceiling and the residual proportionally.