The Association of Chartered Certified Accountants (ACCA) has stated that companies could encounter additional administrative “burdens” as they work to implement the revised Science-Based Targets initiative (SBTi) Corporate Net-Zero Standard V2 guidance.  

Companies can set targets under corporate net-zero standard V1.3 and near-term criteria V5.3 until 31 December 2027. After publication, from 1 January 2028, use of Version 2 guidance will be mandatory for all companies. 

ACCA stated that the transition from version 1 to version 2 is expected to require businesses to adapt their processes, resulting in extra work for compliance teams. 

The updated draft Corporate Net-Zero Standard emphasises strong internal accountability, clearer alignment with frameworks, and cyclical validation processes. 
 
It introduces tailored requirements for scope 1-3 emissions, strict scope 2 decarbonisation criteria, and transparent performance measurement. 
 
While the updated draft continues to prioritise direct decarbonisation, it also introduces a new recognition mechanism designed to incentivise companies that proactively address their ongoing emissions.  

All Category A companies—which include large companies and medium-sized companies in high-income countries—will be expected to assume increasing responsibility for their ongoing emissions starting in 2035. 

ACCA stated that the SBTi has scope to develop a more tailored standard specifically for service-based companies.  

It also acknowledges that the adoption of a consistent framework—requiring 1.5°C-aligned targets across all emissions Scopes (where previously Scope 3 allowed for 2°C targets)—enhances comparability within sectors.  

ACCA Global Sustainability Lead for Strategy Jessica Bingham said: “Despite the issuance of transition guidance, with 2030 and near-term target deadlines in sight, there is a level of uncertainty around how organisations will navigate these changes.  

“However, overall, we believe the changes to the standard demonstrate a desire to continuously improve and show commitment to environmental sustainability.” 

The association has stated that it supports science-based targets as a basis for net-zero commitments.  

ACCA’s own net-zero goals have been reviewed and validated by SBTi.  

The association has also noted that while it applauds SBTi’s efforts to refine and bolster the standard, it would welcome additional dialogue. 

ACCA strategy and governance executive director Maggie McGhee said: ‘We have consistently voiced our stance on making meaningful reductions to emissions rather than offsetting and have taken the most transparent approach possible with our first climate action plan published and by setting year on year emissions targets.  

“Therefore, consistent with ACCA’s focus on decarbonisation, we recommend that criteria should continue to emphasise emissions reduction pathways rather than reliance on removals or offset mechanisms. As the new limitations on carbon credits and emissions offsetting help to encourage real change.”