Disclosure 2-4 requires an organisation to report any restatements of information from previous reporting periods and explain the reasons for and effects of each restatement. A restatement is a revision of information previously reported for an earlier period. Internal corrections made before information is published do not constitute a restatement under Disclosure 2-4.
Restatements can arise from an error, a change in the base period or length of the reporting period, a change in the nature of the business, a change in measurement methodology or definitions, or a disposal, merger or acquisition. An ordinary year-on-year movement, a future-only methodology change, a target update or a correction that does not affect previously reported information is not automatically a restatement.
GRI Guidance says the organisation should disclose the criteria used to determine whether a change or error is significant enough to require a restatement. The assessment should consider whether the change could influence information users’ decisions. For quantitative information, the organisation should specify the quantitative change, for example by showing the originally reported value, the restated value and the resulting absolute or percentage change.
If no restatements were made during the reporting period, a brief direct statement is sufficient. Reasons for omission are not permitted for Disclosure 2-4.
The two datapoints below are an LRA operational decomposition of the reasons and effects contained within the single requirement in Disclosure 2-4-a; they are not separate official GRI disclosures.
This LRA educational guidance supports disclosure preparation. For the exact requirements, always refer to the official GRI source.
A quick mental checklist before you prepare this disclosure — tick each as you settle it.
Key datapoints to prepare
How to prepare it
Request the restatement register, quantitative bridge and explanations
Translate the disclosure into an internal business question — then adapt it to your organisation's own language.
Send the request to Finance, Sustainability Reporting and the relevant topic data owners, such as HR, HSE, Operations, Procurement, Legal, Corporate Development or IT/Data. Ask only about revisions to previously published sustainability information; internal corrections completed before publication are not GRI 2-4 restatements.
Please provide the GRI 2-4 restatements disclosure data.
Why it fails: This uses framework language only and does not tell the owner what practical records to pull, which period to cover, or what details are needed to explain the change and its effect.
Please send the register of revisions to information published for previous reporting periods. For each item, include the affected period and KPI, originally reported and restated information, quantitative change where relevant, specific reason, effect, recalculation method, approval trail and every publication location requiring update. Confirm directly if there were no restatements.
Notes that turn data into a disclosure
LRA training templates — adapt them to your organisation, and check the official source before sign-off.
State which earlier reporting periods were updated, explain the basis used to identify those revisions, and describe the approach taken to calculate their impact.
Explain what the revised figures mean for the reported story, including how the updates change the reader’s understanding of the earlier periods.
Apply the documented restatement criteria to decide whether a change or error is significant enough to influence information users’ decisions. This is GRI Guidance, not a test based on whether a change seems exceptional or relates to a material topic. For quantitative information, show the quantitative change.
Preparation tools & forms
Professional preparation tools for GRI 2-4 — free with an LRA Community membership. Register once (it's free) and every download unlocks, together with the Disclosure Library, templates and the LRA AI Assistant.
For each claim, check the evidence
Evidence pack to prepare
Common reporting gaps
Mistakes to avoid when collecting the data
Where judgement is often needed
Illustrative examples
Synthetic, written by LRA — not from a company report, not text from any standard.
The original 2024 figures had been reported in the organisation’s previous sustainability report. In the 2025 report, they were restated after a review found that one site had been excluded from the 2024 consolidation set.
• Total workforce — originally reported: 4,800; restated: 5,000; change: +200 (+4.2%).
• Recordable injuries — originally reported: 24; restated: 25; change: +1 (+4.2%).
Reason: a reporting-boundary error excluded one site from the published 2024 dataset.
Effect: the restatement increases both 2024 indicators; current-year figures are unchanged.
This example establishes that the information was previously published, gives a specific reason and shows the quantitative effect for each affected indicator.
The 2024 values below were published in the previous sustainability report and are restated after meter-based data replaced an estimate for one distribution centre.
• Total electricity — originally reported: 12,000 MWh; restated: 11,400 MWh; change: −600 MWh (−5.0%).
• Renewable electricity quantity — unchanged at 4,800 MWh.
• Renewable electricity share — originally reported: 40%; restated: 42% (42.1% before rounding); change: +2 percentage points.
Reason: more complete meter data reduced the total-electricity denominator while renewable electricity remained unchanged.
Effect: total electricity decreased and the renewable share increased.
This example makes the denominator logic explicit and distinguishes a percentage-point change from a percentage change.
The organisation made no restatements of information reported for previous reporting periods.
Where no restatements were made, GRI Guidance says a brief direct statement is sufficient.
How companies report GRI 2-4 in practice
Examples of full and partial reporting practice. These are evidence-led reviews, not exact disclosure templates to copy.

Scenarios to work through
A workforce figure is corrected in the current report’s working file before the report is published. The incorrect draft value has never appeared in published sustainability information.
A prior-year emissions total was recalculated after a data source was replaced with a more complete one. The revised total is lower than the figure previously published, and the reporting team is deciding whether to mention only the new number.
A sustainability metric for the prior year was corrected after a calculation error was found. The team has the revised value and a short note about the error, but has not yet drafted any explanation of how the correction affects the published trend.
The reporting team applies its documented criteria and confirms that no information published for previous reporting periods was restated during the year.
Relevant GRI requirements and related disclosures
Available framework references and nearby disclosures relevant to preparing this requirement.
Questions this page answers
Collect the previously published value or wording, the restated value, affected period and disclosure or KPI, specific reason, qualitative and quantitative effect, recalculation method, approval trail and every location where the comparative information must be updated. If there were no restatements, retain confirmation and draft a direct statement.
Use it to distinguish published prior-period information from internal pre-publication corrections, apply the documented restatement criteria, capture reasons and effects, reconcile comparative values across the reporting suite and confirm either the restatements or a direct no-restatements statement.
Prepare the previous sustainability report, restatement register, original and recalculated workbooks, old-to-new bridge, methodology or system change records, relevant transaction documents, corrected comparative tables, approvals and a cross-report consistency check.
The nine checks cover completeness against the restatement criteria, identification of affected periods and items, reasons, effects, quantitative change, consistency, traceability, approval and the direct statement required when no restatements were made.
Key gaps include silently replacing a published value, giving a reason without an effect, omitting the original or quantitative change, using a generic methodology explanation, failing to identify affected periods and items, inconsistent revised values, missing significance criteria, treating an internal correction as a restatement, and saying nothing when there were no restatements.
The page includes draft-output support, including narrative starters and a GRI content-index line. You can use those to turn the collected data into a first-pass disclosure and then tailor the wording to your company’s facts.
Yes. The synthetic examples show originally reported and restated values, the resulting change, a specific reason and the effect. A separate example shows the brief statement that can be used when no restatements were made. Adapt the structure, not the fictional facts.
The Download Centre includes a Prep & Assurance workbook in .xlsx format, which is meant to support preparation and assurance readiness. Use it to organise the required inputs, evidence and review steps before drafting.
The Download Centre also includes a printable Library Card in .pdf format. It is a practical companion for keeping the disclosure requirements, preparation steps and evidence prompts in one place.
Use the ‘How companies report GRI 2-4 in practice’ cards. Each card links to relevant report pages and distinguishes evidence for the reason from evidence for the effect; a company example is not a model of complete compliance unless every element is supported.
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