Resources

IFRS S2, explained for the people doing the work.

Practical, accurate guides to first-cycle IFRS S2 reporting: what auditors actually test, when it's due in your jurisdiction, and how it compares to other regimes. No fluff.

Original Research

The first-cycle disclosure review: what seven IFRS S2 reports contain

Seven filed climate disclosures read in full and recorded against eight dimensions. All seven state a Scope 2 method. Three state why their time horizons were set where they were.

1 September 2026 · · Auditably Research
Technical Analysis

IFRS S2 transition plan disclosure: what has to be shown, and when

The standard does not require you to have a plan. It requires you to answer for the one you have, and for progress against it each year.

30 August 2026 · · Auditably Research
Technical Analysis

Scope 2 market-based vs location-based: why IFRS S2 does not make it a choice

The location-based figure is required by paragraph 29(a)(v). The market-based number is a separate claim about contracts, evidenced by contracts.

30 August 2026 · · Auditably Research
Technical Analysis

Climate scenario analysis under IFRS S2: the evidence it has to leave behind

The standard asks you to disclose the inputs, assumptions and timing of your scenario analysis. What that means for what you retain.

30 August 2026 · · Auditably Research
Technical Analysis

UK SRS S1 and S2: what a preparer has to be able to show

UK SRS is voluntary now and proposed mandatory from 2027. The six provisions in Appendix C, and what each pillar demands as evidence.

30 August 2026 · · Auditably Research
Buyer's Guide

IFRS S2 software for a single entity in its first reporting cycle

What a one-entity first cycle needs from software, what it does not, and what it costs. Published prices, and a control you can test.

30 August 2026 · · Auditably Research
Technical Analysis

IFRS S2 for commercial banks: the industry metrics behind financed emissions

What the industry-based guidance asks of a bank: the Commercial Banks metrics, PCAF data quality scores, and the evidence kept per counterparty.

22 August 2026 · · Auditably Research
Technical Analysis

IFRS S2 for metals and mining: the metrics under review

Metals and mining is one of nine industries under ISSB review. What the metric asks, why fugitive and process emissions are harder to evidence.

22 August 2026 · · Auditably Research
Technical Analysis

IFRS S2 for real estate: where the landlord boundary ends

Who holds the meter decides the scope. The coverage metric, the landlord and tenant boundary, and the evidence a REIT is asked for per asset.

22 August 2026 · · Auditably Research
Technical Analysis

IFRS S2 for agricultural products: evidence three tiers away

Land use change is a direct emission here, not only Scope 3. Supplier tiers, the proposed topic changes, and what a preparer can hold.

22 August 2026 · · Auditably Research
Technical Analysis

IFRS S2 for electric utilities: mix, intensity and retirement

Emissions and resource planning are one topic here. Generation mix, intensity per MWh, selling attributes, and where retirement meets the accounts.

22 August 2026 · · Auditably Research
Assurance

The audit trail behind your climate numbers: what an assurance provider tests

What an assurance provider tests behind a climate figure: the source document, the sign-off, the change history and the hash. A preparer guide.

6 August 2026 · · Md R Rafi

Reference

Maintained, sourced references. Free to use and cite, no signup. Corrections welcome.

Reference

IFRS S2 adoption by jurisdiction

Which jurisdictions have adopted the ISSB Standards, the local standard, who is caught, the first mandatory period, assurance and reliefs. 19 rows, every one sourced.

Updated 12 August 2026 · 19 jurisdictions · Auditably Research
Reference

IFRS S2, ESRS and TCFD crosswalk

A requirement-level mapping across the four pillars, from the official interoperability guidance. Partial and contested matches marked, not forced.

Updated 12 August 2026 · 82 requirements · Auditably Research
Reference

Sustainability assurance standards reference

ISSA 5000 and its national adoptions compared: scope, assurance levels, effective dates and whether use is mandatory.

Updated 12 August 2026 · 10 standards · Auditably Research
Reference

IFRS S2 terminology reference

The vocabulary of IFRS S1 and S2 in plain English, separating the formally defined terms from the ones everybody treats as defined but are not.

Updated 12 August 2026 · 54 terms · Auditably Research
Reference

IFRS S2 working templates

Five free, ungated templates for the records behind a disclosure: GHG data, risk register, sign-off record, oversight log, materiality. xlsx and csv.

Updated 12 August 2026 · 5 templates · Auditably Research
Reference

First-cycle disclosure observatory

What the first mandatory cycle actually produced. Regulator findings on 259 real filings, plus reports read in full. No vendor surveys, no second-hand summaries.

Updated 12 August 2026 · 259 filings reviewed · Auditably Research

Articles

Guides, analysis and opinion on first-cycle IFRS S2 reporting.

SoftwarePractitioner Guide

How to evaluate IFRS S2 reporting software

A buyer’s guide, not a ranking. The seven criteria a Group Financial Controller should apply, the RFP questions to ask, and where ERP tools fall short.

6 August 2026 · 9 min read · Md R Rafi
SoftwarePractitioner Guide

Assurance readiness as a software selection criterion

The evaluation dimension every comparison mentions and none examines. What assurance readiness means inside a system, with a checklist for vendor calls.

6 August 2026 · 9 min read · Md R Rafi
SoftwarePractitioner Guide

What IFRS S2 reporting software costs, and why almost nobody publishes a price

Enterprise vendors hide pricing behind demo forms. The four pricing models, the real cost drivers, and what a mid-market first cycle should budget.

6 August 2026 · 6 min read · Md R Rafi
Assurance

ISSA 5000: what changes for the company being assured

ISSA 5000 applies to periods beginning on or after 15 Dec 2026. Written from the preparer side: what your assurer will ask for, and what to have ready.

6 August 2026 · · Md R Rafi
AssuranceResearch Note

Is there enough assurance capacity for ISSA 5000?

ISSA 5000 takes effect on 15 December 2026 and ISAE 3410 is withdrawn the same day. What the supply of practitioners means if you engage late.

6 August 2026 · 8 min read · Auditably Research
Assurance

Limited versus reasonable assurance: what changes for the preparer

What changes for you when assurance moves from limited to reasonable: sample sizes, evidence depth, and the controls your assurer starts testing.

6 August 2026 · 7 min read · Md R Rafi
First-cycle IFRS S2

What auditors check in a first-cycle IFRS S2 review

Auditors don't grade the prose of your IFRS S2 disclosure. They test whether every number traces to a source, who approved it, and that it hasn't changed. The 5 things assurance teams check in a first cycle.

6 August 2026 · · Md R Rafi
Controls

Who signs off on a climate disclosure figure

Preparer, reviewer, approver: who approves climate disclosure data, what the sign-off record must contain, and why an unsigned figure is a control gap.

6 August 2026 · 7 min read · Md R Rafi
ControlsPractitioner Guide

A sign-off record across five departments

Facilities owns the meters, procurement owns the suppliers, finance owns the report. Who reviews, who approves, and what the record has to contain.

6 August 2026 · 8 min read · Md R Rafi
Controls

Spreadsheets and IFRS S2: where the calculation ends and the control begins

A spreadsheet is fine for the calculation. It cannot show approval, change history or traceability. Where the maths ends and the disclosure control starts.

6 August 2026 · 7 min read · Md R Rafi
Assurance

Could you reproduce this figure in eighteen months?

The reproducibility test: rebuild a disclosed emissions figure from what you kept, with the people who built it gone. Most first cycles fail this one.

6 August 2026 · 6 min read · Md R Rafi
ControlsPractitioner Guide

Consolidating emissions across entities without double counting

Different factors, different calendars, intercompany double counting and mid-year acquisitions. How to consolidate a group figure and document the decisions.

6 August 2026 · 8 min read · Md R Rafi
ControlsTechnical Analysis

What SOX taught finance about disclosure controls, and what carries over to climate

Internal control over financial reporting, management assertion, material weakness. What honestly transfers to climate disclosure, and what does not.

6 August 2026 · 8 min read · Auditably Research
ControlsOpinion

Climate data became financial data, and most reporting teams have not caught up

Climate numbers moved out of the sustainability brochure and into the general purpose financial report. The standard of evidence moved with them.

6 August 2026 · 7 min read · Md R Rafi
StandardsTechnical Analysis

IFRS S2 transition reliefs: what you can defer in year one, and where the deferral ends

Five reliefs are available in your first annual reporting period, and three extend into year two. What each defers, and what you must disclose to use it.

6 August 2026 · 9 min read · Auditably Research
Standards

The December 2025 IFRS S2 amendments are reliefs and documentation obligations

The December 2025 IFRS S2 amendments give four reliefs and add a documentation burden. Effective for periods beginning on or after 1 January 2027.

6 August 2026 · 7 min read · Md R Rafi
StandardsTechnical Analysis

Category 15 after the financed emissions relief: what a bank or insurer actually has to produce

Paragraph 29A lets you limit Category 15 to financed emissions. What you must disclose to take it, and what replaced the mandatory GICS classification.

6 August 2026 · 9 min read · Auditably Research
Frameworks

IFRS S2 vs CSRD: what's the same, what's different

IFRS S2 and the EU's CSRD/ESRS both demand climate disclosure, but they differ on materiality, scope, assurance and who must comply. A clear side-by-side for teams deciding which applies to them.

6 August 2026 · · Md R Rafi
Regulatory timelines

IFRS S2 reporting deadlines by jurisdiction (2025–2028)

When does IFRS S2 (or its local equivalent) become mandatory in Malaysia, Singapore, Australia, the UK, the EU, Canada, California, Japan and Hong Kong? First mandatory periods and assurance phase-in, jurisdiction by jurisdiction.

6 August 2026 · · Md R Rafi
Jurisdictions

Bursa NSRF Group 2: what FY2026 reporters need in place

Group 2 Main Market issuers report under the NSRF from FY2026. What is required, what the transition reliefs cover, and where assurance timing still sits.

6 August 2026 · 7 min read · Md R Rafi