In scope of the FCA's UK SRS rules under PS26/19.
Who mustcomply withUK SRS?
Three routes into UK SRS, and which one your company is on.
UK SRS is voluntary for most companies. It is not voluntary for listed companies in five FCA listing categories from 2027, and companies with the existing Companies Act climate duty can use it to meet that duty today. Work through the three routes below and find your answer.
TL;DR
- No company is required to use UK SRS today. The standards are voluntary and carry no effective date.
- Listed companies in five FCA listing categories must report under UK SRS, or explain why not, for accounting periods beginning on or after 1 January 2027, with first reports in 2028. The FCA's final rules were published on 30 September 2026.
- Companies already required to make climate-related financial disclosures under the Companies Act (broadly, traded, banking, insurance, AIM and high-turnover companies with more than 500 employees) can meet that duty by reporting under UK SRS S2.
- Everyone else is voluntary. The government says it will consider how UK SRS should be reflected in the Companies Act once its Modernising Corporate Reporting consultation closes on 30 November 2026, and has proposed no scope or dates.
- Two transitional reliefs apply under the FCA's rules: one year for Scope 3 emissions, two years for the non-climate parts of UK SRS S1.
Does UK SRS apply to your company?
UK SRS is not mandatory in itself. It applies to listed companies in five FCA listing categories from accounting periods beginning 1 January 2027, and companies with the Companies Act climate duty can use UK SRS S2 to meet it. Everyone else is voluntary.
Accounting periods beginning on or after 1 January 2027, with first reports in 2028.
The size test in the existing Companies Act climate disclosure duty.
The three routes
Route 1: listed companies. Commercial companies, transition, non-equity and non-voting equity shares, international secondary listing, and depositary receipts categories. UK SRS on a comply-or-explain basis from 2027 under the FCA's final rules. Route 1 in detail.
Route 2: the Companies Act climate duty. Traded, banking, insurance, AIM and high-turnover companies with more than 500 employees already have to make climate-related financial disclosures. UK SRS S2 counts as a framework for meeting that duty. Route 2 in detail.
Route 3: everyone else. Voluntary. No proposal exists for private companies outside route 2, and the government's consultation closes on 30 November 2026. Route 3 in detail.
Not sure which? Three questions further down this page settle it in a minute.
Route 1
Which listed companies, and from when?
The FCA's final rules, Policy Statement PS26/19 of 30 September 2026, apply to companies with equity shares listed in the commercial companies category (UKLR 6), the international commercial companies secondary listing category (UKLR 14), depositary receipts (UKLR 15), non-equity and non-voting equity shares (UKLR 16), and the transition category (UKLR 22). Out of scope: closed-ended and open-ended investment funds, shell companies, and debt and debt-like securities.
What the rules require. Disclosures in accordance with UK SRS S1 and S2 in the annual financial report, on a comply-or-explain basis. A company that does not make the disclosures, or makes them only in part, must state which requirements were not met, the reasons, and any steps it is taking or plans to take to make them in future. The FCA consulted on making UK SRS S2 mandatory and decided against it.
From when. Accounting periods beginning on or after 1 January 2027, so the first reports are published in 2028. A company with an accounting period beginning before 1 January 2027 keeps the TCFD-aligned rules for that period, or may adopt UK SRS early.
Two transitional reliefs. Scope 3 emissions may be left out for the first year, and the non-climate parts of UK SRS S1 for the first two years. A company using a relief states that it has done so, and no further explanation is needed while the relief runs. Both reliefs have expired for periods beginning on or after 1 January 2029.
Transition plans and assurance. Neither is required. Companies in the commercial companies, non-equity and non-voting equity shares, and transition categories state whether they have published a climate-related transition plan and where to find it, or why they have not. In-scope companies also state whether they obtained third-party sustainability assurance and, if so, from whom, over what, to what level and under which standards; no explanation is needed where none was sought.
If this is your route, the decision is not whether but how. Drova's IFRS S1 and S2 solution is built for this: the financial materiality assessment, the governance and evidence behind each disclosure, and the disclosure output.
Route 2
The Companies Act climate duty
Since financial years beginning on or after 6 April 2022, the Companies Act has required certain companies to include climate-related financial disclosures in the strategic report: traded companies, banking companies, authorised insurance companies, companies carrying on insurance market activity, and companies with securities admitted to AIM, each with more than 500 employees; and any other company with more than 500 employees and turnover above £500 million. Large limited liability partnerships have a parallel regime.
Section 414CB(6) lets a company meet those requirements by publishing the information under a national reporting framework, as long as it says which framework it used. The government has confirmed that UK SRS S2 is a national reporting framework for that purpose.
What that means in practice. If you are on route 2, you already produce climate-related financial disclosures. Reporting under UK SRS S2 is a way of meeting the same duty with the structure the FCA and the ISSB now use, rather than a new obligation. Many route 2 companies are also on route 1, in which case the FCA's rules and dates apply as well.
Route 3
Everyone else
Voluntary. The government's guidance says the standards are available for voluntary use by any entity that chooses to.
Nothing has been proposed for private companies outside route 2. The Modernising Corporate Reporting consultation, open from 7 September to 30 November 2026, says only that the government will consider how UK SRS should be reflected in the Companies Act, and puts forward no scope, thresholds or dates. The review of the existing climate disclosure regulations is due to complete by spring 2027.
What to watch. The consultation outcome, and any change to the 414CB thresholds that comes out of the spring 2027 review. Neither has a date for change.
Why some route 3 companies report anyway. Large customers, lenders and tender processes may ask for climate-related information regardless of whether the law does, and a company in a listed group may be asked to feed its parent's UK SRS report. Voluntary use of UK SRS gives that reporting a recognised structure.
Work through it in three questions
General guidance, not legal advice. Listing categories per FCA PS26/19; Companies Act scope per the Companies (Strategic Report) (Climate-related Financial Disclosure) Regulations 2022. Check your own listing and group position.
Are your equity shares, non-voting equity shares or depositary receipts listed in the commercial companies, transition, non-equity, international secondary listing or depositary receipts categories? Yes: route 1. UK SRS on a comply-or-explain basis for accounting periods beginning on or after 1 January 2027; first report in 2028; Scope 3 relief one year, non-climate S1 relief two years. No: next question.
Are you a traded, banking, insurance or AIM company with more than 500 employees, or any company with more than 500 employees and turnover above £500 million? Yes: route 2. You already make climate-related financial disclosures under the Companies Act, and UK SRS S2 is a recognised way to meet that duty. No: next question.
Neither? Route 3. UK SRS is voluntary for you today, and nothing has been proposed. Watch the Modernising Corporate Reporting outcome after 30 November 2026.
Dates
Dates and reliefs at a glance
- Route 1, listed. Rules apply to accounting periods beginning on or after 1 January 2027. First reports 2028. Scope 3 relief for one year; non-climate UK SRS S1 relief for two years; both expired for periods beginning on or after 1 January 2029. Early adoption permitted for periods beginning before 1 January 2027.
- Route 2, Companies Act. Duty in force since financial years beginning on or after 6 April 2022. No UK SRS date: using UK SRS S2 is a choice of framework, not a new deadline.
- Route 3, voluntary. No date. UK SRS carries no effective date of its own.
- Everyone. UK SRS S1 lets a company report climate only, with no time limit for voluntary users; a company doing so cannot assert compliance with S1.
How Drova helps
Whichever route you are on, the work is the same shape: decide which sustainability-related risks and opportunities are financially material, evidence the governance and risk management behind them, and produce disclosures that hold together across the four pillars. In Drova, UK SRS S2 is a framework your team can choose to comply with. Track each requirement and attach evidence and controls to it, while Sheila explains each requirement in plain English and suggests controls and tasks. Bring the climate-related risks and opportunities from your materiality assessment into your UK SRS S2 work, then draft your UK SRS S2 disclosure report from the work you've completed. The outcome for a route 1 company is a 2028 report you can stand behind, built during 2027 rather than in the last quarter of it.
Glossary snapshot
UK SRS scope glossary snapshot
Comply or explain. Disclose in accordance with UK SRS, or state which requirements were not met, why, and what you plan to do about it. The basis of the FCA's final rules.
Listing categories. The UKLR chapters that group listed securities. Five are in scope: UKLR 6, 14, 15, 16 and 22.
Section 414CB. The Companies Act provision requiring climate-related financial disclosures in the strategic report for companies in scope, and allowing a national reporting framework such as UK SRS S2 to be used to meet it.
Transitional relief. A period in which a requirement need not be met: one year for Scope 3, two years for non-climate UK SRS S1, under the FCA's rules.
FAQs
UK SRS scope FAQs
Is UK SRS mandatory?
Not in itself. The standards are voluntary and have no effective date. The FCA's final rules require listed companies in five listing categories to report under UK SRS, or explain why not, for accounting periods beginning on or after 1 January 2027.
Who does UK SRS apply to?
Listed companies in the commercial companies, transition, non-equity and non-voting equity shares, international secondary listing, and depositary receipts categories, from 2027 under the FCA's rules. Companies with the Companies Act climate duty can use UK SRS S2 to meet it. Everyone else is voluntary.
Does UK SRS apply to private companies?
Only where a private company already has the Companies Act climate-related financial disclosure duty, broadly more than 500 employees and turnover above £500 million, and then only as a way of meeting that duty. Nothing further has been proposed.
When does UK SRS become mandatory for listed companies?
Accounting periods beginning on or after 1 January 2027, with first reports in 2028, on a comply-or-explain basis.
What does "comply or explain" mean under the FCA's rules?
Disclose in accordance with UK SRS, or include a statement of which requirements were not met, the reasons, and the steps being taken to meet them in future. Using a transitional relief is not an "explain": the company states it is using the relief and nothing more is required.
Does UK SRS replace the TCFD listing rules?
Yes, for the listed companies in scope: from accounting periods beginning 1 January 2027 the TCFD-based regime is replaced by rules requiring UK SRS disclosures or an explanation.
Track your UK SRS S2 work in one place, then draft your disclosure report from the work you've completed.
Know your route, then see the work
UK SRS hub
Explore UK SRS topics
UK Sustainability Reporting Standards overview
What UK SRS is, what it requires, and where it stands.
UK SRS S1: general disclosures
What UK SRS S1 requires, financial materiality, and the climate-first relief.
UK SRS S2: climate disclosures
What UK SRS S2 requires and where the UK version differs from IFRS S2.
UK SRS timeline
The dated milestones from endorsement to the FCA's final rules.
IFRS S2
The ISSB climate standard UK SRS S2 endorses.
IFRS and ISSB reporting software
Drova's IFRS and ISSB reporting page.