If you run a small or medium-sized enterprise (SME), environmental, social and governance (ESG) reporting might feel like something only big listed companies need to worry about. In practice, the pressure is already moving down the supply chain. Banks, insurers, investors and larger customers increasingly want clear answers on climate exposure, energy use and transition plans. Even where reporting is not mandatory for you yet, the commercial expectation is growing.
That matters because weak ESG reporting often creates friction at exactly the wrong time – when you are trying to win a contract, refinance or reassure stakeholders after a disruption. It can also expose you to reputational risk if you make claims you cannot evidence. The good news is that you do not need a perfect system from day one. You do need a practical approach and a clear audit trail.
A relevant warning sign is how few businesses have started. In September 2024, 74% of businesses had not assessed any climate change risks from a list that included flooding, supply-chain disruption and water scarcity (Office for National Statistics (ONS) research on business attitudes to climate change). If your competitors are in that 74%, getting organised now can put you ahead.
What UK SRS S1 and S2 are and why they matter
The UK is building its approach around the International Sustainability Standards Board’s first two standards, IFRS S1 and IFRS S2. The UK Sustainability Reporting Standards are referred to as UK SRS S1 (general sustainability-related disclosures) and UK SRS S2 (climate-related disclosures). The aim is to improve consistency and comparability so users of accounts can understand how sustainability and climate risks affect financial performance and resilience (Department for Business and Trade (DBT), 2024).
In simple terms, these standards push businesses to explain:
- how sustainability and climate factors could affect the business model, strategy and financials
- what governance and controls exist around these issues
- what targets and metrics you use, and how reliable the data is
- how you identify and manage material sustainability risks and opportunities.
A key point for SMEs is that the standards are designed for decision-useful information, not marketing. That is where many businesses go wrong. Saying, “We are committed to net zero” is not enough if you cannot show actions, measurement and governance behind it.
Who is likely to report first and what “phased” means for SMEs
The UK government published exposure drafts for consultation on 25 June 2025, and the consultation closed on 17 September 2025 (DBT, 2025). In the exposure draft document, the government said it aimed to publish final UK SRS S1 and S2 in autumn 2025, if the drafts were endorsed for use in the UK (DBT, 2025). The detail that matters, especially for SMEs, is the likely phased approach: larger entities and public interest businesses tend to be brought in first, with expectations then filtering down through lenders and supply chains.
It is also worth remembering that climate-related reporting is already mandatory for certain large companies and limited liability partnerships (LLPs) under existing UK rules for financial years starting on or after 6 April 2022 (UK legislation, 2022). That existing regime affects many of the organisations SMEs supply to, which is why you are seeing more questionnaires and contract clauses.
For most SMEs, the earliest impact is not “you must publish a sustainability report”, iIt is more often the following.
- Tender requirements: Customers ask for emissions data, policies and evidence of progress.
- Finance decisions: Lenders request climate risk information and transition planning.
- Insurance and resilience: Questions about physical risks, business continuity and supply-chain dependencies.
- Recruitment and retention: Candidates want credible, consistent messaging, not slogans.
So when we talk about “getting ready”, we mean being able to answer these requests quickly and consistently, without distracting your team for weeks.
What good ESG reporting looks like in practice
Strong ESG reporting is built on clarity, consistency and traceable evidence. For SMEs, it helps to think in layers.
Layer one is narrative: a short, honest explanation of what matters to your business and why. Layer two is measurement: the key metrics you can stand behind. Layer three is control: who owns the process, how you check the data and how often you review it.
Here are practical examples of what that can look like.
- If you operate from a single site, you might track electricity and gas consumption monthly, alongside any major efficiency actions.
- If you have a complex supply chain, you might start with supplier concentration risks and key vulnerabilities, then add climate-related disruption risks such as flooding or transport constraints.
- If you have vehicle fleets, you might track mileage, fuel type and maintenance cycles, and document your plan for renewal or route optimisation.
The “S” and “G” also matter. Many SMEs can evidence good practice quickly with existing documents: health and safety processes, training logs, staff turnover data, customer complaint handling and supplier onboarding checks. The key is to present this in a structured way, with dates, owners and evidence, so it holds up under scrutiny.
Separately, it helps to understand the economic direction of travel. The low carbon and renewable energy economy remains a material part of UK activity. ONS estimated provisional 2023 indirect turnover at £29.2bn and 153,600 full-time equivalent roles (ONS, 2025). That is a reminder that supply chains, customer expectations and funding priorities are shifting, even if your own sector feels unchanged today.
A practical ESG reporting starter plan for SMEs
If you want to prepare ahead of the UK SRS roll-out, focus on building a simple, repeatable reporting pack. You can expand it over time.
- Define scope and owners: Decide what parts of the business you are reporting on and name an accountable owner. Keep it tight at the start, you can widen later.
- List your material issues: Identify the five to 10 sustainability and climate topics that could realistically affect revenue, costs, operations or reputation. Link each topic to a real business driver.
- Choose a small set of metrics: Start with what you can measure reliably, for example, energy use, fleet fuel, waste volumes, sickness days, staff turnover or supplier concentration. Avoid metrics you cannot evidence.
- Create an evidence file: Keep invoices, meter reads, HR reports, policies and supplier documents in one place. Treat it like a finance audit file, because it will be used the same way.
- Run a risk and scenario sense check: Document your key exposures, such as flooding, heat impacts or supply disruption. You do not need complex modelling, but you do need to show you have considered the risks.
- Set realistic actions and review dates: Pick actions you can deliver within six to 12 months, and set review points. Build it into existing management routines so it does not become a forgotten project.
This approach reduces the “scramble factor” when a lender or customer asks for information with a tight deadline. It also improves internal decision-making: if you understand energy use, supplier risks and exposure to disruption, you can plan investment and protect cashflow more confidently.
For wider support, it can be helpful to align your reporting with the latest official direction and definitions. The government’s UK SRS materials explain the intent and structure (DBT, 2024), and the exposure draft publication sets expectations for the type of disclosures envisaged.
Turning preparation into fewer surprises and better answers
If you take one thing from this, it is that ESG reporting is shifting from “nice to have” to “expected”, even for owner-managed businesses. The pace will vary by sector, but the direction is consistent: customers and funders want decision-grade information, not broad statements.
The risk of waiting is not only future compliance. It is the day-to-day commercial impact, losing a tender because you cannot provide credible data, or delaying funding because you cannot explain climate exposure and mitigation steps. There is also the reputational risk of publishing claims that cannot be supported, particularly where statements are made in marketing or recruitment materials.
A sensible next step is to build a short reporting pack now and refine it each quarter. If you want support, we can help you structure the data capture, identify what is material for your business and make sure your narrative and metrics align with the direction of UK SRS S1 and S2. That usually means starting with what you already have, then filling the gaps in a controlled way.
To discuss a practical plan, contact us to review your current ESG reporting position and build a simple, evidence-based pack that meets lender and customer expectations. Start here business support and advisory services or get in touch with us. You can also learn more about us here: HW Associates.