Guides · Scope 3: the value chain
Scope 3 category 15: investments
Financed emissions in the GHG Protocol: who category 15 is for, the investment types it covers, and how emissions are allocated by share of equity.
By LCALens. Published 8 Oct 2026, 1 min read.
Part of The 15 Scope 3 categories explained.
Category 15 "is applicable to investors (i.e., companies that make an investment with the objective of making a profit)". It is "designed primarily for private financial institutions (e.g., commercial banks)", but any company with investments not already in its Scope 1 and 2 should screen it. It is part of the 15 Scope 3 categories.
Investment types
The guidance divides investments into four types: equity investments, debt investments, project finance, and managed investments and client services. Debt investments with a known use of proceeds are required; those without a known use are optional.
Allocation by share
Emissions are allocated in proportion to the investment. For equity investments, the investment-specific formula is the sum over investments of the investee's Scope 1 and 2 emissions × your share of equity (%).
Example: you hold 10% of a company whose Scope 1 and 2 emissions are 5,000 tonnes CO2e. Your category 15 emissions from that holding are 500 tonnes.
Methods
- Investment-specific: "collecting scope 1 and scope 2 emissions from the investee company" and allocating by share.
- Average-data: "using revenue data combined with EEIO data to estimate" the investee's emissions when it does not report them, then allocating by share.
Relation to consolidation
Subsidiaries and joint ventures that are inside your organisational boundary are already in your Scope 1 and 2. Category 15 covers the investments outside that boundary. Under the equity share approach, the boundary itself already follows equity, so check that nothing is counted twice.
For non-financial companies
Most operating companies have little in category 15: perhaps minority stakes or pension-fund-style holdings. Screen it, report what is material, and justify the rest.
More on Scope 3: the value chain
- The 15 Scope 3 categories explained (overview)
- Freight emissions in Scope 3: tonne-km, categories 4 and 9
- Scope 3 category 1: purchased goods and services with spend-based factors
- Scope 3 category 2: capital goods
- Scope 3 category 3: well-to-tank and grid losses explained
- Scope 3 category 5: waste generated in operations
- Scope 3 category 6: business travel emissions and radiative forcing
- Scope 3 category 7: employee commuting and homeworking
- Scope 3 category 8: upstream leased assets
- Scope 3 category 9: downstream transportation and distribution
- Scope 3 category 10: processing of sold products
- Scope 3 category 11: use of sold products
- Scope 3 category 12: end-of-life treatment of sold products
- Scope 3 category 13: downstream leased assets
- Scope 3 category 14: franchises
Sources
- Technical Guidance for Calculating Scope 3 Emissions, Chapter 15: Category 15, World Resources Institute / WBCSD (accessed 2026-10-08)
- Corporate Value Chain (Scope 3) Accounting and Reporting Standard, Table 5.4, World Resources Institute / WBCSD (2011) (accessed 2026-10-08)
This guide explains methods and published data. It is not legal or assurance advice. LCALens is designed to align with the GHG Protocol and ISO 14064-1 but is not certified or endorsed by either body.