Climate-Related Financial Disclosures and GHG Accounting: ESG BROADCAST shares key takeaways.
The Partnership for Carbon Accounting Financials (PCAF) has released a significant update to its Global Greenhouse Gas Accounting and Reporting Standard for the Financial Industry. Announced on December 2, 2025, the update expands the scope for financial institutions globally to measure and transparently disclose the GHG emissions associated with their financing and insurance activities. This revision addresses the complexity of diverse financial portfolios by introducing new methods that effectively close existing accounting gaps. PCAF remains the global standard-setter for the financial sector’s Scope 3, Category 15 emissions.
The Core Team and over 100 industry experts from various PCAF signatory groups collaboratively developed these standard enhancements. The development focused on improving the frameworks for Financed Emissions (Part A) and Insurance-Associated Emissions (Part C). Importantly, the existing, established methodologies within the PCAF standard remain unchanged, providing continuity for institutions already using the framework. The new methods simply extend coverage to previously complex or unaddressed financial instruments.
Specifically, the updated PCAF standard introduces four new financed emissions methodologies. These methods cover financial products such as use of proceeds structures, securitizations and structured products, and sub-sovereign debt. Furthermore, the update provides an optional reporting method for undrawn loan commitments, aligning with guidance from IFRS S1 and S2. On the insurance front, two new methodologies are now available for measuring emissions related to treaty reinsurance and project insurance.
PCAF also launched crucial supplemental guidance concerning Financed Avoided Emissions and Forward-Looking Metrics. This guidance establishes guardrails for institutions wishing to separately report on future climate impact, not just historical emissions. Although these new methods are immediately available, PCAF acknowledges that implementation requires time. Institutions can set a feasible internal timeline, but they must transparently disclose the percentage of their portfolio included and provide clear justifications for any current exclusions from their GHG emissions accounting.
Strategic significance lies in the heightened demand for complete, consistent, and credible financial GHG emissions disclosures. This expanded PCAF standard enables financial institutions to gain a more comprehensive view of the emissions impact of their activities and their exposure to associated transition risks. By harmonizing accounting across diverse and complex portfolios, the standard underpins more effective climate-related risk management, informs capital allocation strategies, and facilitates better-informed decisions for stakeholders across the market.
