How financial institutions can use technology, AI, and data to pinpoint where emissions concentrate across sectors, products, and counterparties, leading to sharper underwriting, better investment decisions, and greater transparency.

Financed emissions explained: What they are, how they are measured, and why they matter

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Financial institutions sit at a uniquely influential point in the energy transition. This isn’t solely due to emissions from their own operations, although that is certainly a factor. Rather, they have an outsized role to play given the emissions generated by their financing, investing, and lending activities. For most institutions, these emissions—called financed emissions—represent the largest share of their overall carbon footprint, making measurement a critical foundation for stronger risk management, credible disclosure, and better decision-making.

While external pressure from regulators, investors, and civil society continue to build, the larger opportunity is strategic. Institutions that accurately measure and monitor these emissions across investment, lending, and product portfolios can improve their risk management, make more informed decisions about capital allocation, and ultimately drive business value.

To capture that value, institutions should first understand what financed emissions are, how they are calculated, and the levers available to reduce them.


What are financed emissions?

Financed emissions are the greenhouse‑gas (GHG) emissions associated with the companies and projects a financial institution finances through lending or investment activities, allocated in proportion to its share of capital provided. The concept reflects the role that capital providers play in enabling real-economy activities and their associated emissions, with financial emissions often dwarfing a financial institution’s operational emissions footprint by 750 to 1.1 Other financial relationships such as insurance underwriting and capital markets facilitation may also be considered within a company’s financial emissions inventory.


How are financed emissions calculated?

Attribution approaches vary by underlying asset class, reflecting differences in financial exposure, ownership structures, and data availability. The Greenhouse Gas Protocol—the global corporate GHG accounting standard—categorizes financed emissions under Scope 3, Category 15 (Investments), but has historically provided limited guidance on how to apply attribution logic across different financial activities. To address this implementation gap, the Partnership for Carbon Accounting Financials (PCAF) developed Part A of its standard, introducing asset-class-specific methodologies for corporate and project finance, equity and debt investments, mortgages, vehicle loans, and more. As practice matures, methodologies continue to evolve. For example, PCAF has recently expanded Part A to cover securitizations and structured products, while the GHG Protocol is expected to update its Scope 3 guidance by 2028.2


Why calculating financed emissions matters now

As financial institutions face increasing regulatory requirements and stakeholder expectations, accurately calculating financed emissions is becoming essential.

Regulator-mandated disclosure of Scope 3 emissions, including financed emissions, is expanding globally (e.g., ISSB IFRS S2) and through regional rules (e.g., CSRD). These regulations are being enacted as investor and client expectations continue to rise.

Understanding financed emissions can help strengthen risk management and investment decision-making by revealing exposure to high-emitting sectors, transition risks, and potential positive impacts on portfolio performance as the economy transitions to a lower-carbon future.

Many financial institutions have set climate commitments, often including 2030 portfolio-level emissions-reduction targets. Delivering against these commitments typically requires establishing a financed emissions baseline and tracking progress over time.


An approach for measuring and managing financed emissions

Our approach for measuring and managing financed emissions provides key actions and considerations to help organizations establish robust processes and uphold compliance with evolving regulatory and stakeholder expectations.


How PwC can help

PwC offers practical support to help organizations address key challenges in financed emissions management, from establishing robust data foundations to meeting evolving regulatory requirements. The following capabilities enable clients to improve data quality, automate processes, and align their sustainability strategies with industry standards.

Assess data gaps, evaluate providers, source data, and define and apply PCAF-aligned methodologies to develop a financed emissions baseline.

Deploy scalable calculation engines and integrate them into existing enterprise systems for automated reporting and analytics.

Implement controls, data-lineage documentation, and data quality improvement roadmaps.

Leverage artificial intelligence to rapidly extract, standardize, and validate data required for calculation, estimate and measure emissions across your portfolio, orchestrate workflows to drive cost savings, and identify portfolio-level insights to support strategic decision-making.

Support the development of interim and long-term portfolio emissions reduction targets consistent with a net-zero pathway.

Prepare for regulatory financed emissions reporting (e.g., IFRS S2, CSRD) and external assurance.

Provide independent assurance over financed emissions inventories to address regulator and broader stakeholder expectations.

Sources

1. “CDP-PCAF alignment: Simplifying reporting on financed emissions.” CDP. September 19, 2024.
2. “PCAF launches updated GHG accounting standard.” Partnership for Carbon Accounting Financials press release. December 2, 2025.

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Brittany Mancuso Schmidt

Brittany Mancuso Schmidt

Financial Services Climate Change and Sustainability Leader, PwC US

Rohan Poojara

Rohan Poojara

Director, Financial Services Consulting, PwC US

Mike Faillo

Mike Faillo

Partner, Sustainability Assurance Services, PwC US

Rob Milnes

Rob Milnes

Director, Sustainability Assurance Services, PwC US

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