This guide breaks down what UK SRS means, who may be affected, what companies will need to disclose, and how organizations can start preparing before reporting becomes a compliance deadline.
Who This Is For
- UK-listed companies and groups assessing upcoming sustainability disclosure requirements.
- Large and economically significant private companies monitoring the direction of UK reporting regulation.
- Sustainability, ESG, finance, risk, compliance and reporting teams preparing for UK SRS.
- Companies already reporting under TCFD, SECR, CSRD, CDP, or other sustainability frameworks and looking to understand how UK SRS may change their reporting landscape.
- Organizations that want to voluntarily adopt UK SRS before mandatory requirements come into effect.
Unpacking The UK Sustainability Reporting Standards
The UK Sustainability Reporting Standards (UK SRS) are the UK’s official framework for sustainability and climate-related financial disclosure. They are based on the International Sustainability Standards Board’s IFRS S1 and IFRS S2, which were developed to create a global baseline for investor-focused sustainability reporting.
The UK Government published the final UK SRS S1 and UK SRS S2 on 25 February 2026 following its consultation process. The two standards, UK SRS S1 and UK SRS S2, have distinct but connected roles.
UK SRS S1 includes the general framework for applying UK SRS, as well as requirements on general sustainability-related risks and opportunities. UK SRS S2 sets out requirements on climate-related risks and opportunities. Together, S1 and S2 create a reporting architecture that links sustainability information more closely with financial and strategic decision-making.
Why Is The UK Moving To UK SRS?
For years, organizations have navigated a growing collection of sustainability reporting expectations, such as TCFD, SECR, and CDP, but UK SRS is intended to bring greater consistency and comparability by aligning the UK with the global ISSB reporting baseline.
The government has said the standards are intended to provide information that supports investor decision-making and improves consistency in sustainability-related financial reporting. The shift also reflects a broader evolution in corporate reporting: from reporting sustainability activity to explaining how sustainability affects business value.
For many UK businesses, UK SRS will not feel like a completely new reporting world. That is because existing UK climate disclosure requirements have already been strongly influenced by TCFD. The difference is that the reporting landscape is now moving towards the ISSB framework, with UK SRS providing the UK-endorsed version of that baseline.
The FCA has explicitly described its proposal as a move away from the existing TCFD-aligned requirements towards UK SRS-aligned reporting.
Companies that already have mature climate governance, risk and emissions processes may therefore have a head start. But UK SRS readiness will still require organizations to assess what needs to change.
Who Is In Scope Of UK SRS?
One of the most important things to understand about UK SRS is that the standards themselves do not currently set a universal employee, turnover or balance-sheet threshold. UK SRS S1 and S2 are available for voluntary use, while mandatory reporting requirements are being introduced through separate regulatory mechanisms.
For listed companies, the FCA has proposed aligning existing sustainability disclosure requirements with UK SRS for companies in specific UK Listing Rule categories. The FCA consultation covers UKLR 6 (commercial companies), UKLR 16 (non-equity and non-voting equity shares), UKLR 22 (transition category), UKLR 14 (secondary listings) and UKLR 15 (depositary receipts).
Under the FCA’s current proposal, the full UK SRS reporting route would apply to companies in UKLR 6, 16 and 22, while companies in UKLR 14 and 15 would follow a different statement-based approach rather than being required to apply the full UK SRS framework.
The FCA has proposed that the new requirements would come into force from 1 January 2027, subject to the final Policy Statement expected in autumn 2026. The proposal therefore means that scope for listed companies is determined primarily by listing category, rather than company size.
For private companies, the position is not yet finalized. The UK Government has indicated that it intends to consider extending sustainability reporting requirements to economically significant private companies through its Modernizing Corporate Reporting program, but no definitive UK SRS employee, turnover or balance-sheet threshold has been published yet.
A further consultation on scope and implementation is expected, meaning businesses should not assume that commonly cited thresholds from SECR, CSRD or other regulations automatically determine UK SRS applicability. Until the final rules are established, private and unlisted companies should monitor developments and consider voluntary adoption as an opportunity to build reporting readiness ahead of potential future requirements.
When Will UK SRS Reporting Become Mandatory?
For businesses trying to understand the UK SRS timeline, 2026 is the key preparation year. The standards are already available for voluntary adoption, while the rules that will make reporting mandatory for certain companies are being developed by the UK Government and the FCA.
25 February 2026 – UK SRS Becomes Available
The UK Government published the final versions of UK SRS S1 and UK SRS S2 on 25 February 2026. Both standards are available for voluntary use by any organization that chooses to adopt them. This gives businesses an opportunity to start aligning their reporting processes before mandatory requirements take effect.
2026 – Regulatory Rules And Implementation Take Shape
The focus during 2026 is on turning the standards into applicable reporting requirements. For listed companies, the FCA has consulted on replacing its existing TCFD-aligned requirements with UK SRS-aligned sustainability disclosures across specified listing categories. The consultation has closed, and the FCA aims to publish its Policy Statement in autumn 2026.
From 1 January 2027 – Proposed Start For Listed Companies
Under the FCA’s current proposals, the new UK SRS-aligned requirements would come into force from 1 January 2027 for relevant listed companies. The exact requirements will depend on the final FCA rules following its consultation process.
For other organizations, including economically significant private companies, the mandatory route is being developed separately. The UK Government has confirmed that further decisions are needed on whether and how requirements should apply to other UK entities.
2026 should not be viewed as a waiting period for UK SRS; it is an opportunity to get ahead. Organizations that use this time to strengthen their data, governance and reporting controls will be better positioned to meet mandatory requirements with confidence, rather than racing to catch up when the deadline arrives.
What Do UK SRS Require Companies To Disclose?
At the heart of UK SRS are four connected areas: Governance, Strategy, Risk Management, Metrics and Targets. Rather than treating these as separate reporting sections, organizations should think of them as a connected story.
Organizations need to explain the governance processes, controls and oversight used to monitor these matters. Companies need to consider how these matters could influence their business model, strategy, decision-making and financial prospects. For climate-related disclosures, this can include consideration of physical risks, transition risks and climate-related opportunities.
Organizations should disclose how they identify, assess, prioritize, and monitor sustainability-related risks. Depending on the reporting requirements applicable to the organization, relevant disclosures can include greenhouse gas emissions, climate-related metrics, targets, progress against targets and other information necessary to help users understand sustainability-related performance.
Why Climate Data Will Remain A Major Focus
Although UK SRS S1 covers sustainability-related risks and opportunities more broadly, climate reporting is likely to remain the area where many businesses face the most immediate data challenge.
For example, UK SRS S2 brings climate-related information into areas such as:
- Scope 1 and Scope 2 greenhouse gas emissions.
- Relevant Scope 3 emissions.
- Climate-related risks and opportunities.
- Climate resilience and scenario analysis.
- Climate-related targets and performance.
- Information relevant to an organization’s transition strategy.
The FCA’s current consultation also highlights Scope 3 as an area where a proportionate implementation approach may be needed, proposing that Scope 3 reporting could initially be subject to a “comply or explain” approach for companies within its proposed rules.
This is important because emissions reporting is no longer simply an environmental exercise. It becomes part of the evidence supporting an organization’s explanation of climate-related risks, strategy and performance.
How Ready Are You For UK SRS?
Understanding whether UK SRS applies to your organization is only the first step. The bigger question is whether your organization is actually ready to report.
UK SRS readiness goes beyond having an ESG team or publishing a sustainability report. It requires organizations to have the right governance structures, clearly defined responsibilities, reliable sustainability data, appropriate risk assessment processes, measurable targets, and controls that can support credible disclosures. And this is where many organizations may find a gap.
To help organizations evaluate their readiness, check our UK SRS Readiness Self-Evaluation Questionnaire. It will help you understand where your organization stands today across key UK SRS readiness areas and, more importantly, where you may need to focus next.
Waiting for mandatory requirements to be finalized could leave companies with limited time to prepare. UK SRS readiness is less about writing the report and more about building the data, governance and controls behind it.
How Credibl ESG Can Help
At Credibl ESG, we believe that UK SRS shouldn’t just be viewed as a regulatory burden. When managed correctly, it becomes a measurable commercial advantage. Organizations need reliable sustainability data, clear ownership, robust controls and a reporting process that can stand up to increasing scrutiny.
Credibl ESG helps organizations turn UK SRS readiness into a structured, data-driven process, from identifying reporting gaps and strengthening governance to managing ESG data and preparing disclosures. Whether your organization is starting its UK SRS journey or building on existing TCFD, GHG or ESG reporting practices, Credibl ESG can support the transition.
- UK SRS Gap Assessment and Readiness Roadmap – Understand where your current sustainability reporting stands against UK SRS expectations. Credibl ESG can help identify gaps across governance, strategy, risk management, metrics and targets, and translate those findings into a practical roadmap with prioritized actions.
- Advisory on Data Controls and Governance – UK SRS reporting depends on consistent, traceable and reliable data. Credibl ESG enables organizations to establish structured data ownership, collection workflows, validation processes and documentation around key sustainability metrics, helping create a stronger foundation for assurance-ready reporting.
- Double Materiality Assessments – Identifying which sustainability-related risks and opportunities matter to the business is central to UK SRS. Credibl ESG can support organizations in structuring materiality and risk assessment processes, helping connect sustainability topics with business strategy, financial relevance and enterprise-level decision-making.
- UK SRS Reporting Support – Move from data collection to disclosure with a more structured reporting process. Credibl ESG can help organizations organize the information required for UK SRS-aligned disclosures, bringing together quantitative metrics, targets, risks, governance information and supporting evidence in a centralized environment.
- Centralized ESG Data Management – Managing sustainability data across multiple teams, facilities and reporting requirements can quickly become complex. Credibl ESG provides a central platform for collecting, managing, validating and monitoring ESG information, helping organizations reduce fragmented spreadsheets and improve data consistency across reporting cycles.
- Build a Reporting Foundation for Multiple Frameworks – UK SRS does not exist in isolation. Organizations may also need to manage requirements and disclosures linked to frameworks such as the GHG Protocol, CDP, TCFD legacy reporting, SECR and other sustainability reporting requirements.
Key Areas Credibl ESG Can Support
Credibl ESG can help organizations strengthen capabilities across areas such as:
- GHG accounting and emissions management
- Scope 1, Scope 2 and Scope 3 data
- Climate targets and performance tracking
- Decarbonization initiatives and action plans
- Climate risk and opportunity management
- ESG data collection and validation
- Reporting workflows and evidence management
- Sustainability performance monitoring
UK SRS is more than a reporting requirement. It is an opportunity for UK organizations to bring sustainability closer to business strategy, strengthen decision-making, and build long-term resilience.
UK SRS readiness should not be treated as a one-time compliance project. The stronger approach is to build a repeatable sustainability data and governance process that can support future reporting cycles as requirements continue to evolve.
With Credibl ESG, organizations can move from fragmented sustainability data to a more structured, connected and report-ready ESG ecosystem, helping make UK SRS preparation more efficient, transparent and scalable.
5 Most Frequently Asked Questions
1. Is UK SRS mandatory now?
Not yet in general. The final UK SRS S1 and S2 are currently available for voluntary use. Mandatory requirements are being developed separately through UK legislation and FCA rules.
2. When were the UK SRS standards published?
UK SRS S1 and UK SRS S2 were published by the UK Government on 25 February 2026.
3. Are UK SRS the same as IFRS S1 and IFRS S2?
They are closely based on the ISSB standards IFRS S1 and IFRS S2, but the UK versions include certain UK-specific amendments. For example, the UK SRS changes the treatment of SASB guidance from “shall refer to and consider” to “may refer to and consider.”
4. Do UK SRS replace TCFD?
The direction of travel is toward replacing existing TCFD-aligned requirements with UK SRS-aligned requirements for relevant entities. The FCA is consulting on this transition for listed issuers.
5. Does UK SRS require Scope 3 emissions?
UK SRS S2 addresses greenhouse gas emissions, including Scope 3. However, the exact application of Scope 3 requirements can depend on the regulatory implementation approach. In its 2026 consultation, the FCA proposed a “comply or explain” approach for Scope 3 for companies covered by its proposed listing rules.
