SBTi Rules Update 2026: Why 2030 Targets Just Got Easier (And What It Means)

Executive Summary

On April 14, 2026, the Science Based Targets initiative (SBTi) issued an appendix to its Corporate Net-Zero Standard that fundamentally changed how near-term targets are calculated. Companies submitting new targets can now commit to significantly less ambitious 2030 reductions than previously required.

The headline change: for companies starting with a 2025 base year and 2030 target, Scope 1 and 2 reductions dropped from ~42% to ~21%. Scope 3 targets dropped from ~20% to ~15%. SBTi's 2050 net-zero goal remains unchanged — what changed is how reductions are distributed along the way.

The move has generated significant controversy. Supporters argue it brings more companies into the system. Critics warn it widens the gap between "science-based" targets and actual climate science, creates a two-tier system where early adopters face stricter rules, and consumes more of the finite remaining carbon budget through delayed early reductions.

Bottom line: Companies planning new SBTi submissions should model both pathways. Companies with existing validated targets should stay the course — the reputational risk of appearing to weaken commitments likely outweighs any relief.

Table of Contents

What Happened

On April 14, 2026, with no headline announcement and a public release that landed two weeks later, SBTi shifted the rules for near-term target setting. The change came via an appendix to the Corporate Net-Zero Standard, not a full revision.

Until this update, companies validating near-term targets through the general-purpose route (Absolute Contraction Approach) had to commit to specific linear reductions:

• Scope 1 and 2: 4.2% per year from base year = ~42% by 2030
• Scope 3: 2.5% per year = slightly above 20% by 2030

The April 2026 appendix allows companies to distribute reductions differently between the base year and 2050. For companies starting now with a 2025 base year and 2030 target:

• Scope 1 and 2: drops to around 21% (half the previous figure)
• Scope 3: drops to around 15%

The 2050 net-zero target itself has not changed. What changed is the shape of the decarbonisation curve — flatter early on, steeper later.

Why It Matters

This matters for three reasons:

1. The Gap Between "Science-Based" and Climate Science

The IPCC still says 1.5°C requires a 43% global emissions cut by 2030. If SBTi-validated targets can now sit at 21%, the gap between what climate science demands and what gets stamped "science-based" widens significantly.

SBTi labels the new targets as "1.5 degree-aligned" on the assumption that everyone hits them. But as Pierre-Victor Morales-Aubry of the Carbon Trust noted, that assumption "may no longer be true."

2. Cumulative Emissions

The remaining carbon budget for 1.5°C is finite. Every year of delayed reductions consumes part of that budget. A company cutting 21% by 2030 instead of 42% emits significantly more in the critical 2025–2030 period — regardless of where it lands in 2050.

3. Fairness Across Companies

Businesses that signed up under the previous 42% regime cannot apply the new rules retroactively. Claire Taylor of the Carbon Trust summed up the frustration: imagine fighting for internal buy-in on a 42% target, submitting it, and two weeks later discovering you could have submitted 21%.

This creates a two-tier system: early adopters locked into stricter commitments, new entrants with significantly easier targets.

Who Is Affected

Directly Affected

• Companies planning new SBTi submissions — Can now use the relaxed criteria
• Companies in the process of setting targets — May need to reassess feasibility and internal commitments
• Financial institutions with SBTi-validated portfolio targets — May see downstream effects on investee company targets

Indirectly Affected

• Companies with existing validated targets — Cannot apply new rules retroactively, but face questions from stakeholders about why their targets are stricter
• Investors using SBTi as a screening tool — Need to understand the two-tier system when comparing companies
• CDP and other disclosure platforms — Scoring methodologies may need to adapt
• Consultants and advisors — Client conversations about target strategy have become more complex

Not Affected

• Companies not pursuing SBTi validation
• Companies with sector-specific pathways (e.g., FLAG, Automotive) — these have separate rules

What Changed (The Numbers)

The Scope 1/2 Separation (The Hidden Change)

A second important change in version 5.3.1 of the near-term criteria has received less attention but may have greater practical impact: Scope 1 and Scope 2 targets are now separated.

Previously, companies set a combined Scope 1+2 target. In practice, much of the progress came from Scope 2 — switching to renewable electricity tariffs, which is often faster and cheaper than decarbonising Scope 1 industrial processes.

Under the new rules:

• Scope 1 and Scope 2 must be reported and tracked separately
• Scope 2 is expected to reach net-zero by 2040
• Companies can no longer offset slow Scope 1 progress with Scope 2 "easy wins"

Impact: This is arguably more significant than the 42%→21% change for companies with carbon-intensive industrial processes. Scope 1 decarbonisation — fuel switching, process changes, efficiency improvements — is harder and more expensive than buying renewable electricity. Separating the targets exposes this challenge more clearly.

Key Takeaways

• 2030 targets just got easier. New SBTi submissions can now target ~21% Scope 1+2 reduction by 2030 instead of ~42%.
• Early adopters are locked in. Companies with existing validated targets cannot apply the new rules retroactively. This creates a two-tier system.
• The "science-based" label is under pressure. The gap between IPCC requirements (43% by 2030) and SBTi targets (21%) is widening.
• Cumulative emissions matter. Delayed early reductions consume more of the finite carbon budget, regardless of 2050 outcomes.
• Scope 1/2 separation is the hidden big change. Industrial companies can no longer hide behind Scope 2 renewable energy purchases.
• More changes are coming. Corporate Net-Zero Standard V2 is expected in late 2026, with mandatory adoption from January 2028.

Industry Impact

Manufacturing & Heavy Industry

Companies with carbon-intensive industrial processes (steel, cement, chemicals) face the toughest Scope 1 decarbonisation challenges. The Scope 1/2 separation means they can no longer use renewable electricity purchases to mask slow industrial decarbonisation. Action: Accelerate Scope 1 abatement projects — CCS, hydrogen fuel switching, process electrification.

Technology & Professional Services

These sectors typically have low Scope 1 emissions and high Scope 2 (office electricity). The 42%→21% change is less relevant because they could already hit 42% easily through renewable energy. The Scope 1/2 separation has minimal impact. Action: Maintain ambitious targets; use the competitive advantage of early validation.

Financial Services

Banks and asset managers with SBTi-validated portfolio targets need to understand how the new rules affect their investee companies. A portfolio of companies with mixed target vintages (some at 42%, some at 21%) becomes harder to model and communicate. Action: Engage portfolio companies on target strategy; update portfolio-level climate risk models.

Food & Agriculture (FLAG)

FLAG guidance was updated separately in March 2026 (V1.2) and is not directly affected by the April near-term criteria change. However, companies with both FLAG and general targets need to track two evolving rule sets. Action: Monitor FLAG V1.2 implementation alongside general SBTi updates.

Recommended Actions

For Companies Planning New SBTi Submissions

1. Model both pathways — Calculate costs, feasibility, and cumulative emissions for 21% vs 42% targets
2. Assess stakeholder expectations — Will investors, customers, and boards accept a 21% target, or do they expect more?
3. Evaluate competitive positioning — If peers have 42% targets, will 21% look weak?
4. Plan for Scope 1/2 separation — Ensure Scope 1 decarbonisation projects are funded and tracked separately

For Companies with Existing Validated Targets

1. Stay the course — The reputational risk of appearing to weaken commitments likely outweighs any short-term relief
2. Communicate proactively — Explain to stakeholders why your target is stricter than new entrants'
3. Use it as a competitive advantage — "We committed to 42% when others now need only 21%"
4. Monitor five-year review options — SBTi may provide guidance on how existing targets interact with new rules at review

For All Companies

1. Track V2 developments — Corporate Net-Zero Standard V2 expected late 2026; mandatory from January 2028
2. Review FLAG guidance if applicable — V1.2 effective March 2026 with significant changes
3. Engage your validation partner — Consultancies are still interpreting the new rules; early engagement helps

Frequently Asked Questions

What did SBTi change in April 2026?

In April 2026, SBTi issued an appendix to its Corporate Net-Zero Standard allowing companies to distribute reductions differently between the base year and 2050. For companies starting now with a 2025 base year and 2030 target, Scope 1 and 2 near-term targets can drop to around 21% (from 42% previously), and Scope 3 targets to around 15% (from ~20%).

Do existing SBTi-validated targets need to change?

No. The new rules apply to new target submissions only. Companies with existing validated targets remain bound by their original commitments. They cannot apply the relaxed criteria retroactively. This creates a two-tier system where earlier adopters face stricter requirements than new entrants.

Why did SBTi relax its near-term targets?

SBTi's official position is that demanding 4.2% linear annual cuts from companies just starting their journey in 2025 with a 2030 target was becoming mathematically untenable — only five years remained to hit 42%. Many companies were dropping out or never engaging. SBTi chose to adjust methodology to bring more companies into the system rather than maintain strict purity and lose coverage.

Are the new SBTi targets still aligned with 1.5°C?

SBTi labels the new targets as "1.5 degree-aligned" on the assumption that all companies hit their targets. However, critics note that the IPCC still requires a 43% global emissions cut by 2030 for 1.5°C. If SBTi-validated targets can now sit at 21%, the gap between climate science and what gets stamped "science-based" widens. The cumulative emissions from delayed early reductions also consume more of the finite remaining carbon budget.

What is the Scope 1 and 2 separation change?

In version 5.3.1 of the near-term criteria, SBTi separated Scope 1 and Scope 2 targets. Previously, companies set a combined Scope 1+2 target, which allowed progress on Scope 2 (renewable electricity) to offset slower Scope 1 decarbonisation. Now, Scope 2 is expected to reach net-zero by 2040, meaning companies can no longer hide Scope 1 difficulties behind Scope 2 "easy wins."

Should companies with existing targets revalidate under the new rules?

Companies cannot retroactively apply the new rules to existing targets. However, at their mandatory five-year review, they may have options depending on SBTi guidance at that time. Terrnix recommends that companies with existing targets stay the course — the reputational and competitive risk of appearing to back away from original commitments likely outweighs any short-term relief.

What should companies do now in response to the SBTi update?

Companies should: (1) Review current target trajectory against the new rules if planning new submissions, (2) Assess whether original 42% targets are still achievable or if the new 21% pathway is more realistic, (3) Model the cumulative emissions and reputational implications of each pathway, (4) Engage stakeholders (investors, boards, customers) on target strategy, and (5) Monitor SBTi communications for further V2 updates expected in late 2026.

References

• SBTi — Our 2026-2030 Strategy
• SBTi — Corporate Near-Term Criteria V5 (April 2026)
• Dcycle — SBTi Rules Update: 21% by 2030 Instead of 42%
• iCOR — SBTi 2026: What's In Place and What's Set to Change
• Positive Scenarios — Unpacking Major April 2026 Update to SBTi Target-Setting Method
• IPCC — AR6 Working Group III: Mitigation of Climate Change

How Terrnix Can Help

Navigating the SBTi rule changes requires strategic analysis, stakeholder alignment, and robust emissions data. Terrnix provides: