A climate-related transition plan is one of the most significant disclosures an entity can make under IFRS S2. This lesson covers what a transition plan must contain, what IFRS S2 requires if you have one, and (critically) why the standard does not require entities to have one at all.
What is a Climate-Related Transition Plan?
IFRS S2 Appendix A defines a climate-related transition plan as an aspect of an entity's overall strategy that lays out the entity's targets, actions, and resources for transitioning toward a lower-carbon economy, including actions such as reducing its GHG emissions.
Several elements of this definition are important:
- It is an aspect of overall strategy, not a standalone document separate from the business
- It must include targets (where you are going), actions (how you will get there), and resources (what you are committing)
- It is explicitly about the transition: reducing emissions, adapting the business model, realigning capital
IFRS S2 Does Not Require a Transition Plan
This is one of the ISSB's most significant design choices. IFRS S2 paragraph 14(a)(iv) says: if an entity has a transition plan, it must disclose it. The standard does not require an entity to develop a transition plan.
The Basis for Conclusions (BC46 to BC52) explains the rationale: requiring all entities to have transition plans would extend IFRS S2 beyond its role as a disclosure standard into regulation of business conduct. The ISSB's mandate is transparency, not economic management.
However, the disclosure requirement creates powerful market pressure. An entity that has no transition plan must effectively disclose the absence of one, which investors will note.
IFRS S2's approach to transition plans is like financial statement requirements for research and development: you are not required to do R&D, but if you do, you must account for it properly. The act of requiring specific, detailed disclosure of plans creates accountability even without mandating the plans themselves.
What Must Be Disclosed About a Transition Plan
If an entity has a transition plan, paragraph 14(a)(iv) requires disclosure of:
Key assumptions and dependencies. The plan is not just targets and actions; it must reveal the assumptions on which it is based. For example:
- What policies does the plan assume will be in place? (for example, a carbon price at a certain level by 2030)
- What technologies does it depend on? (for example, carbon capture and storage becoming commercially viable)
- What external partnerships or supply chain changes does it rely on?
- What government incentives or subsidies does it assume?
Disclosing assumptions allows investors to assess the plan's credibility: if the plan depends on technologies that do not yet exist at commercial scale, or on policies that are not yet enacted, that is material information.
Net vs Gross Targets in Transition Plans
If an entity sets a net GHG emissions target (meaning a target that accounts for carbon removals or offsets), it must also disclose the gross GHG emissions target underlying it (Basis for Conclusions BC50). A net target should not obscure the entity's actual emission trajectory.
For example, an entity might have a "net-zero by 2050" commitment where the "net" includes purchasing carbon credits to offset continued emissions. IFRS S2 requires the entity to also disclose:
- What is the gross emissions trajectory before offsets?
- What are the specific gross emissions targets for 2030, 2040, 2050?
This prevents transition plans from overstating progress through heavy reliance on offsets while making limited operational changes.
Progress Reporting on Transition Plans
Paragraph 14(c) requires disclosure of quantitative and qualitative progress on plans disclosed in previous reporting periods. This creates year-on-year accountability.
If an entity disclosed a transition plan in year 1 with specific milestones, it must report in year 2 on whether those milestones were achieved. This is analogous to the way financial guidance creates accountability: once disclosed, it must be tracked.
| Transition Plan Element | Required Disclosure |
|---|---|
| Targets | Specific GHG targets by scope, absolute or intensity, with base year and interim milestones |
| Actions | Planned operational changes, capital investments, technology adoption, supply chain changes |
| Resources | Capital committed, staffing changes, financing arrangements (Para 14(b)) |
| Assumptions | Policy environment assumed, technology availability, external partnerships required |
| Dependencies | External factors the plan relies on (government action, market development, supplier changes) |
| Progress (annual) | Quantitative and qualitative update on prior-period milestones |
Example of a credible transition plan disclosure: A major steel manufacturer with a 2030 50% emissions reduction target discloses its transition plan with these elements:
Targets: Reduce Scope 1 emissions by 50% by 2030 (vs 2020 baseline), with interim targets of 20% by 2025. Scope 2 target: 100% renewable electricity by 2027.
Actions: Three actions described with specific milestones: (1) pilot electric arc furnace at Site A by 2025; (2) full conversion of Site B by 2028; (3) green hydrogen procurement partnership from 2026.
Assumptions: Plan assumes green hydrogen available at 4 EUR per kg by 2026 (currently 8 EUR per kg). Plan assumes EU carbon price of 100 EUR per tonne by 2025.
Progress (current year): Renewable electricity at 62% vs 50% target for 2023; Site A EAF feasibility study completed (on track); hydrogen partnership negotiations initiated (6 months behind plan).
Key Takeaways
- 1IFRS S2 does not require entities to have a transition plan, but if one exists it must be disclosed in full - and the absence of a plan is itself disclosed
- 2Transition plan disclosure must cover targets, actions, resources, key assumptions (policy, technology, partnerships), and external dependencies
- 3Net GHG emissions targets must always be accompanied by gross targets to prevent plans from obscuring actual emission trajectories through heavy offset reliance
- 4Para 14(c) requires annual progress reporting on previously disclosed milestones, creating accountability that prevents entities from quietly abandoning commitments
- 5Disclosing assumptions (e.g. assumed carbon price levels or technology costs) allows investors to independently assess whether the plan is credible