CSRD Phase-In & Deadlines: Working Back From Your First Report

CSRD phase-in and deadlines: planning backwardsYour CSRD deadline is not the publication date — it is the start of the first financial year you report on, because you cannot collect data retrospectively for a full year. Working backwards from first publication, the double materiality assessment and the datapoint inventory must be complete before that financial year begins, which for most later-wave groups means the practical deadline has already passed or is imminent.The Omnibus package changed both scope thresholds and timing, and the 'stop-the-clock' directive postponed later waves by two years. That relief is real, but it has produced a common and expensive mistake: treating the postponement as time not to start.The binding constraint is data collection over a full financial year. A report published in 2029 covers 2028, and 2028's data must be captured as it happens. That places the real deadline well before the visible one.How the phase-in is structured

Wave 1: large public-interest entities above 500 employees, already reporting under ESRS

Wave 2: other large undertakings meeting the revised size thresholds, postponed by two years under the stop-the-clock directive

Wave 3: listed SMEs, further delayed, with an opt-out available for the initial years and a proportionate standard

Wave 4: non-EU parent groups above the EU turnover threshold, under the separate third-country standard

Scope was also narrowed: the Omnibus revisions raise the thresholds, taking a substantial share of previously in-scope undertakings out

Confirm your wave against the current consolidated directive text and the Dutch implementing legislation — this has changed more than once and generic summaries go stale quickly

Confirming your own position

Test the size criteria at group level on two consecutive financial years, using the revised thresholds

Check listing status and whether any group entity is a public-interest entity

Establish whether a subsidiary exemption applies because a parent reports on a consolidated basis covering you

For non-EU parents, test EU turnover and whether a qualifying subsidiary or branch exists

Document the conclusion with the figures used and the date tested — this is itself an audit trail item

Re-test annually; growth, acquisitions and disposals move groups between waves

Planning backwards from publicationTake your first publication date and work back. The sequence below is what a realistic plan looks like; the dates shift with your wave, the order does not.

Publication: sustainability statement in the management report, tagged, with limited assurance

Minus 3 months: assurance fieldwork on the completed statement

Minus 6 months: statement drafted, all datapoints populated, evidence pack assembled

End of reporting year: full-year data captured, controls performed throughout

Start of reporting year: data collection live — systems, owners, controls and validation all operating

Minus 6 months from that start: datapoint inventory complete, gaps closed, dry run performed on prior-period data

Minus 12 months: double materiality assessment approved, since it defines the datapoint scope

What can and cannot be done late

Can be done late: narrative disclosures, policy documentation, report design and tagging

Cannot be done late: full-year measured data — energy, emissions, workforce metrics, incidents — where retrospective collection means estimation, and estimation must be disclosed as such

Cannot be done late: controls evidence. An assurance provider tests whether the control operated during the period, not whether it exists now

Cannot be done late: the materiality assessment, because everything downstream depends on its scope

Value-chain data has the longest lead time of all — supplier engagement takes cycles, not weeks

Using the postponement well

Run a voluntary dry run on prior-period data — it is the cheapest way to find the gaps, with no publication risk

Build the datapoint inventory now; it is reusable regardless of how thresholds move again

Align the sustainability reporting boundary with the consolidation scope while there is no deadline pressure

Engage the assurance provider early for a scoping walkthrough; their findings are cheaper before the reporting year than during it

Expect customer and lender data requests to arrive ahead of the legal deadline, and treat those as the effective start date

Phase-in planning checklist

Wave and first reporting year documented, with the figures used to test scope

Scope conclusion re-tested annually and after acquisitions

Subsidiary or third-country regime position confirmed

Backwards plan built from publication date to data collection start

Double materiality assessment scheduled at least 12 months before the reporting year

Datapoint inventory complete before the reporting year begins

Source systems and owners assigned per datapoint

Controls designed to operate during the reporting period, not after it

Value-chain and supplier data engagement started early

Dry run performed on prior-period data

Assurance provider engaged for a scoping walkthrough

Digital tagging capability confirmed with the reporting tool

How we would approach this

We work backwards from publication to the data-collection start date, which is the deadline that actually binds.

We use the postponement for a voluntary dry run, so the first mandatory report is a repeat rather than a first attempt.

We build the datapoint inventory and boundary alignment first, because those survive any further change to thresholds or timing.

When does CSRD reporting start for each wave?Phase-in dates have been amended since the original directive, including by the stop-the-clock changes, so the applicable first reporting year depends on the wave and on national transposition. Check the current national implementation rather than the original 2022 timetable.What should groups do while the timetable shifts?Build the data foundation regardless of the date. The reporting year can move; the requirement for traceable, assurable ESG data does not, and the data work is the long-lead item.Primary sources

Directive (EU) 2022/2464 (CSRD) — https://eur-lex.europa.eu/eli/dir/2022/2464/oj

European Commission — sustainability reporting — https://finance.ec.europa.eu/capital-markets-union-and-financial-markets/company-reporting-and-auditing/company-reporting/corporate-sustainability-reporting_en

Delegated Regulation (EU) 2023/2772 — ESRS — https://eur-lex.europa.eu/eli/reg_del/2023/2772/oj