Guidelines for setting a net zero-aligned internal carbon price

Sep 11, 2025

In the evolving landscape of corporate sustainability, internal carbon pricing has emerged as a pivotal instrument for driving decarbonisation and aligning business operations with global climate objectives. Setting an internal carbon price (ICP) involves assigning a monetary value to greenhouse gas emissions before they have been emitted, thereby internalising the external costs of carbon pollution. ICPs represent a shift toward a proactive strategy where carbon becomes a core business consideration rather than an afterthought, enabling them to genuinely shape strategic decision-making and lead to tangible emissions reductions. They have become a widely recognised tool for managing climate risk, incentivising low-carbon investment and preparing for emerging regulatory requirements.

However, over time it has become clear that not all ICPs are effective – they are often set at a level that is not consistent with net zero transition pathways. To address this need, the authors of this report provide the first comprehensive framework for implementing net zero-aligned internal carbon pricing, based on five foundational principles. ICPs should be:

  1. Climate compatible;
  2. Contextual;
  3. Clear;
  4. Committed; and
  5. Catalytic.

This report was written by Ben Field (Patch), Lizzy Coad (BCG) and Injy Johnstone (Oxford Net Zero), with contributions from Bee Hui Yeh (Patch) and Anastasia Kouvela (BCG).

Publication details
Theme(s)
The urgency of zero
Type(s)
Report
Author(s)
Johnstone, Injy
Year(s)
2025
Patch, BCG, Oxford Net Zero

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