How to prepare your ESG reporting data
To prepare ESG reporting data, define your reporting period and organisational boundaries, assign an owner to each metric, and gather supporting records in one place. Check units and calculation methods, document missing information, and review the evidence before drafting your report. Keep assumptions visible so reviewers can trace each claim.
Last updated 26 October 2026 · By Ella
Get startedStart with scope and ownership
Agree which entities and reporting period the report covers. Assign an owner to each data request and record the source of each figure.
Organise your evidence
Use a consistent register to connect each metric to its supporting record. Keep original units and note any conversions.
| Field | What to record |
|---|---|
| Metric | Name, unit and reporting period |
| Evidence | Source document and responsible owner |
| Gaps | Missing records and assumptions |
Review before drafting
Check completeness, reconcile conflicting figures and identify gaps. A draft report should distinguish verified records from estimates and unanswered questions.
How Ella helps
Frequently Asked Questions
What if some data is missing?
Record the gap, identify an owner and describe any assumptions. Do not present missing data as zero or imply that an estimate is verified.
Can I reuse evidence from an earlier period?
Use earlier records as context, but check that evidence supports the reporting period and scope of the current report. Label any reused assumptions clearly.