CDP vs CSRD: how to disclose once

CDP and CSRD ask similar questions in very different ways. Companies that build a single, audited data layer can feed both — and several other frameworks — from the same source.

Side by side

	CDP	CSRD
Status	Voluntary (but de-facto required by buyers/investors)	EU regulatory mandate
Scope	Environmental only — climate, water, forests	Full ESG: environment, social, governance
Format	Structured questionnaire on the CDP portal	XBRL-tagged sustainability statement in the management report
Audience	Investors, buyers (CDP Supply Chain), analysts	Regulators, public
Assurance	Encouraged, not required (verification rewarded in scoring)	Required — limited assurance from year one
Cycle	Annual, deadline Apr–Jul	Annual, aligned with financial reporting
Materiality	Topic-driven (you opt into modules)	Double materiality assessment determines scope

Where the data overlaps

Both frameworks ask for the same underlying environmental data:

• Scope 1, 2 and 3 GHG emissions following GHG Protocol — exact same boundary definitions.
• Energy consumption and renewable energy mix.
• Water — withdrawal, consumption and discharge volumes.
• Targets — SBTi validation, net-zero commitments, interim milestones.
• Governance — board oversight, named accountability, climate-linked compensation.
• Transition plans — capex allocation, scenario analysis.
• Climate risks — physical, transition, value-chain.

That’s roughly 70% of the environmental content needed for CSRD’s E1 (Climate change) and E3 (Water and marine resources) standards, and roughly 90% of CDP Climate.

Where they diverge

CDP doesn’t ask about:

• Social and human-rights topics (CSRD’s S1–S4).
• Governance topics beyond environmental (CSRD’s G1).
• Pollution (CSRD’s E2), biodiversity (E4) and circular economy (E5) at any depth.
• Double materiality methodology.

CSRD doesn’t ask about:

• CDP-specific scoring narrative (e.g. “how you moved from C to B”).
• Forests-specific commodity traceability (unless your DMA flags it material).
• CDP Supply Chain — buyer-specific disclosures.

Build the data layer once

Practical structure:

1. Single emissions inventory — Scope 1/2/3 by GHG Protocol category, with documented methodology and assurance evidence. Feeds CDP Climate + CSRD E1.
2. Water flows by site and source — withdrawal, consumption, discharge. Feeds CDP Water + CSRD E3.
3. Targets register — SBTi-validated or not, with baseline year, target year, scope, intensity vs absolute. Feeds both.
4. Governance evidence library — board minutes, terms of reference, named owners, review cadence. Feeds both.
5. Risk register — climate physical and transition risks with financial impact ranges. Feeds both.

Sequencing

Best practice for companies subject to both:

1. Complete CSRD first (it’s audited, mandatory, and has the higher rigor bar).
2. Leverage the audited inventory for CDP in the next quarter — same numbers, same boundaries, fewer reconciliation errors.

If you only file CDP today, the underlying data structure is the same as what you’ll need for CSRD when it applies. Don’t optimise for CDP alone — design for the bigger framework.

What doesn’t transfer

CSRD’s double materiality assessment and value-chain due diligence have no CDP equivalent. Plan for that work separately.