Sustainability report translation is the work of producing faithful versions of a company’s environmental, social and governance (ESG) reporting in other languages, so that every figure and claim carries the same meaning in each one.
For many large companies in the EU, the law now requires it. The report has to appear in the official language of each country where the company is registered. For example, if a group registered in Denmark, Germany and Spain publishes one sustainability report, then it needs Danish, German and Spanish versions that say exactly the same thing.
The rules behind this changed in 2026, so a guide written a year ago will point you in the wrong direction. This article sets out what applies now, in plain terms, and how to get the translation right.
TL;DR
- A sustainability report covers a company’s environmental, social and governance (ESG) performance, its targets and its risks
- If the company falls under EU rules, the report sits inside the management report and must appear in the official language of each country where it is registered
- The 2026 Omnibus I changes narrowed who must report, but the translation duty for companies still in scope has not changed
- The hard part is terminology: ESG terms are technical and easy to render inconsistently across languages
- The fix is to agree each term once, reuse it, and have native in-country reviewers check the result
- Accurate, consistent versions keep you safe with regulators and read clearly for investors and customers
What sustainability and CSRD report translation means
Sustainability and CSRD report translation means producing a target-language version of a company’s ESG reporting that a local reader, regulator or investor can rely on, with every figure and statement intact.
CSRD is shorthand for the EU’s Corporate Sustainability Reporting Directive, the rulebook that sets out which companies must report on sustainability and what they have to cover.
A sustainability report shows how a company affects the environment and society, how the company is run, and what it is doing about the risks and targets that follow.
This is regulated reporting, checked with the same care as financial accounts. It belongs inside our financial translation work, alongside annual reports and investor communications.
Do you actually have to translate your sustainability report?
Yes, if your company is in scope, you do. The sustainability report forms part of the management report, and the management report is filed in the official language of the country where the company is registered.
The legal basis is the EU Accounting Directive, which places the sustainability statement inside the management report. National company law then sets the language each country accepts for filing.
For a group that operates in several EU countries, one English version will not meet the requirement. The EU recognises 24 official languages, and each member state can insist on its own.
Many companies translate further than the law demands, because their investors, customers and suppliers ask for the same information in their own language.
The plain answer
If your company must report under CSRD, translate the sustainability statement into the official language of each EU country where you are registered. If you operate more widely, you will often translate further so investors and customers can read it in their own language.
Who still has to report in 2026, after the Omnibus changes
The Omnibus I Directive narrowed CSRD sharply in early 2026, so far fewer companies must report, though the largest groups still do.
Mandatory reporting now applies mainly to large companies with more than 1,000 employees and over €450 million in net turnover. Listed small and medium-sized companies, brought in under the original rules, are now exempt.
The narrowed scope applies for financial years beginning on or after 1 January 2027. Companies that already started reporting carry on, and the second wave was delayed by two years.
For the companies that stay in scope, the translation duty has not changed. For everyone else, customers, banks and value-chain partners now drive the demand for translated reports.
| What changed in 2026 | What still applies |
| Scope narrowed to companies with 1,000+ employees and over €450m turnover | The sustainability statement must be filed in the official language of the country of registration |
| Listed SMEs are now exempt | First-wave companies already reporting continue to report |
| The reporting standards (ESRS) are being simplified | Translation remains a legal duty for companies in scope |
| Second-wave reporting delayed by two years | Voluntary translation still matters across the value chain |
The figures come from the Omnibus I Directive (EU) 2026/470, published in the Official Journal on 26 February 2026 and in force from 18 March 2026 (Council of the EU, 2026). The two-year delay for the second wave comes from the earlier Stop-the-Clock measures (European Commission, 2025). The production side of a multilingual report, from planning to sign-off, sits in our guide to translating annual reports.
Why translating these reports is harder than it looks
Sustainability reports carry traps that a general translator misses, so they reward specialist handling.
Technical terms with no easy equivalent
Some ESG terms have no clean equivalent in the target language, so the translator chooses a rendering and stays with it.
The risk is concrete. If a translator renders double materiality one way in an early section and differently later, a reader can take the two as separate ideas.
Long reports that repeat themselves
Sustainability reports run long, and they repeat the same disclosures across sections and from one year to the next.
When translators reuse approved wording, the repeats stay consistent and the work moves faster. Machine translation can help with the most repetitive, structured passages, as long as a senior reviewer checks every line.
Reports filed in a tagged digital format
Many of these reports are filed in a structured digital format, where parts of the text are tagged so software can read them.
The translated text and those tags have to line up, so the process has to keep the structure intact rather than only swap the words.
Numbers and claims that auditors check
An independent reviewer checks these reports, so the translation has to stand up to the same scrutiny.
That means checking every figure against the source and keeping a record of decisions, so anyone can trace the translated version back if a question comes up.
Which parts of your sustainability report need the most care
A few parts of a sustainability report carry most of the translation risk, so that is where to concentrate review. The rest still has to be accurate, but these are the places where a small slip causes a real problem.
| Part of the report | What it contains | Where the care goes |
| The strategy and targets | The company’s plan, commitments and goals, written as prose | The claims must match the original exactly; a version that reads firmer or softer than the source misleads the reader |
| The issues treated as most important | The company’s view of which environmental and social topics matter most, and why (sometimes called double materiality) | The reasoning has to stay consistent across languages, or the explanation stops adding up |
| The metrics and figures | Emissions, energy and workforce numbers, usually set out in tables | Every figure, unit and label has to line up exactly with the source |
| The list of green activities | Which business activities count as environmentally sustainable under EU rules, known as the EU Taxonomy | These are fixed legal categories and percentages, so there is no room to paraphrase |
| The independent reviewer’s statement | The assurance provider’s conclusion on the report | The wording carries legal weight, so a translator renders it precisely and a reviewer checks it |
Across all of these, one habit prevents most problems: agree the wording for the terms that recur, then reuse it everywhere.
You can settle those decisions when you build a termbase, and record them in a multilingual style guide, so every translator and reviewer works from the same wording.
How to get a sustainability report translated well
You get a sustainability report translated well by treating it as a controlled process, with named specialists and independent checks, the same discipline you apply to the report itself. A specialist language service provider (LSP) runs the steps below as a repeatable workflow.
The parts that make the difference:
- Native in-country translators who know sustainability reporting and the local rules
- An agreed termbase, settled before drafting, so the wording is fixed early
- Reuse of approved wording for the disclosures that repeat
- Independent revision under ISO 17100, where a second qualified linguist checks the work
- In-country review, so the terms read correctly to a local reader
- Figure and consistency checks, with a record kept for assurance
Specialist work is priced accordingly, so it helps to understand what professional translation costs before comparing quotes. When you manage terminology management consistently, the whole process holds together.
How AdHoc Translations approaches sustainability report translation
At AdHoc Translations, we hold ISO 17100 and ISO 18587, and we pair native ESG translators with in-market reviewers who read each version the way a local stakeholder would.
We agree on the termbase and build the reuse memory before production starts, so the wording is settled before anyone translates a disclosure.
Our project managers run figure and consistency checks and keep the audit trail that assurance needs. We work alongside your sustainability, communications and legal teams, so the translation keeps pace with sign-off.
Our SmartDesk portal gives your team one place to track every language version and its status. Our SmartConnect integration connects your reporting systems to our platform, so content moves without rekeying.
We build in confidentiality, with secure transfer, controlled access and documented retention.
Frequently asked questions
Do sustainability reports have to be translated by law?
In many cases, yes. If a company must report under the EU’s CSRD, its sustainability statement is part of the management report, which is filed in the official language of the country where the company is registered. Companies that operate in several countries often translate further so stakeholders can read the report in their own language.
Which languages does a CSRD report need to be in?
At a minimum, the official language or languages of each EU country where the company is registered and files. The EU recognises 24 official languages, so a group operating across borders may need several. Many companies add further languages for investors and customers beyond the legal minimum.
Does my company still have to report under CSRD after the 2026 Omnibus changes?
It depends on your size. After the Omnibus I Directive, mandatory reporting applies mainly to large companies with more than 1,000 employees and over €450 million in net turnover, for financial years beginning on or after 1 January 2027. Listed small and medium-sized companies are now exempt. Check your figures against the current thresholds, and confirm the national rules, because member states apply them.
Can we just use machine translation for our sustainability report?
Not on its own. Machine translation can help with repetitive, structured passages, but a senior linguist has to review every line. ESG terms are easy to render inconsistently, and an unreviewed machine output can change the meaning of a disclosure, which carries legal and reputational risk.
What is double materiality, in plain terms?
It means looking at sustainability from two directions: how sustainability issues affect the company financially, and how the company’s activities affect the environment and society. A report built on double materiality covers both. The term is defined in the standards, so it should be translated consistently rather than reworded.
How do you keep ESG terminology consistent across languages?
You agree the wording of each key term once, store it in a shared termbase, and reuse it across every section and language. A multilingual style guide records the decisions, and in-country reviewers confirm the terms read correctly. This keeps the same idea from appearing under two different labels.
Speak with our localisation team
If your company reports on sustainability across more than one country, we can help you translate it so the wording and the figures hold up with regulators and read clearly for everyone else. Speak with our localisation team and we will agree languages, terminology and timelines in one conversation.
Sources
- Omnibus I Directive (EU) 2026/470, Council of the EU (2026): https://www.consilium.europa.eu/en/press/press-releases/2026/02/24/council-signs-off-simplification-of-sustainability-reporting-and-due-diligence-requirements-to-boost-eu-competitiveness/
- European Commission, Corporate Sustainability Reporting Directive (scope, timeline, Stop-the-Clock): https://finance.ec.europa.eu/capital-markets-union-and-financial-markets/company-reporting-and-auditing/company-reporting/corporate-sustainability-reporting_en
- EFRAG, draft simplified ESRS (2025): https://www.efrag.org/
- Accounting Directive 2013/34/EU, basis for the language obligation (EUR-Lex): https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32013L0034