IFRS S2 Does Not Apply to Your Company. Your Bank Still Needs Your Emissions Numbers.

Most of the questions we get about ISSB come from companies asking whether they are in scope. For a private Japanese manufacturer, an unlisted German Mittelstand supplier or a mid-cap outside any adopting jurisdiction, the answer is usually no.

That answer is about to stop being useful, because the request will not arrive from a regulator. It will arrive from a relationship manager at your bank.

What the ISSB changed in December 2025

On 11 December 2025 the ISSB issued targeted amendments to IFRS S2, effective for annual reporting periods beginning on or after 1 January 2027, with early application permitted (IFRS Foundation).

Four changes, in the ISSB’s own words:

• Clarify that an entity is permitted to “limit measurement and disclosure of Scope 3 Category 15 GHG emissions to financed emissions as defined in IFRS S2”.
• “Permit the use of alternative classification systems — beyond the Global Industry Classification Standard — to disaggregate information about financed emissions”.
• Clarify the availability of the jurisdictional relief from using the GHG Protocol Standard where only part of an entity is required to use a different measurement method.
• Introduce a jurisdictional relief from using global warming potential values from the latest IPCC Assessment Report.

All four are written for financial institutions. We covered what they mean for a filer’s own timetable in ISSB Year Two. This article is about the other end of the wire.

”Limited to financed emissions” is a wide definition

The first amendment sounds like a narrowing, and for a bank it is. Facilitated emissions from investment banking and emissions associated with insurance underwriting fall outside it.

What stays inside is lending and investing: loans, project finance, bonds, equity investments, undrawn commitments and assets under management. Almost every company with a credit facility sits in some institution’s Category 15.

So the amendment reduced a bank’s reporting perimeter and left the borrower population untouched. The banks that were going to ask you for numbers are still going to ask.

The mechanic that decides how hard they ask

Financial institutions measure financed emissions using the PCAF standard — the Global GHG Accounting and Reporting Standard for the Financial Industry. Part A has been reviewed by the GHG Protocol and “is in conformance with the requirements set forth in the Corporate Value Chain (Scope 3) Accounting and Reporting Standard, for Category 15 investment activities”, covering listed equity and corporate bonds, business loans and unlisted equity, project finance, commercial real estate, mortgages and motor vehicle loans. PCAF reports more than 700 signatories and more than 250 disclosures (PCAF).

The part that reaches you is the data quality score. PCAF asks an institution to score the evidence behind every financed-emissions figure on a five-point scale, where 1 is “verified, direct emissions data reported by the investee”, 2 is unverified data reported by the investee, 3 is calculated from company-specific physical activity data, 4 is estimated from sector-average activity data, and 5 is estimated from proxy data or broad assumptions (Stepchange).

A bank publishes that score alongside the emissions. It cannot improve the score by working harder. The only way a portfolio moves from 4 to 2 is if borrowers hand over their own numbers, and the only way it moves from 2 to 1 is if those numbers have been verified.

That is why the request lands on you. Your data quality is your lender’s disclosed data quality.

What a lender actually asks for

The request is narrower than a CSRD value-chain questionnaire and more particular about provenance. In practice it comes down to five things.

Scope 1 and Scope 2 for a stated fiscal year. Not a three-year average, not a calendar-year approximation of a March fiscal year. The bank has to line your period up with its own.

The boundary. Which legal entities the number covers, and whether that set reconciles to your consolidated financial statements. A group figure that quietly excludes two subsidiaries is worse than a smaller figure that says what it excludes.

The method and the factor versions. Which emission factors, which publication year, market-based or location-based for Scope 2. A number with no method attached scores as an estimate whatever its provenance.

Verification status. Whether anything external has been done to the number. This is the entire distance between PCAF score 1 and score 2.

Physical activity data, where you cannot report emissions directly. Floor area, production volume, fuel purchased, kilometres driven. That is the difference between score 3 and score 4, and for a company that has never compiled emissions, it is usually the fastest available improvement — the data already exists in operations.

This is not the customer questionnaire you may already be answering

Plenty of suppliers already fill in a value-chain questionnaire for a European customer. The two requests look similar and are not interchangeable.

A customer asks under ESRS, about the products or the sites that serve them, on the customer’s reporting calendar. A lender asks under IFRS S2 and PCAF, about the whole entity, for a period that has to line up with your financial statements. Sending the customer’s answer to the bank usually fails on boundary and period rather than on content.

The overlap is real, and it sits underneath both: the same meters, the same invoices, the same factor choices. We wrote about that reuse in one supplier dataset, four EU filings. Record the boundary once and both requests draw from it.

The timing is tighter than the effective date suggests

The amendments bite for periods beginning on or after 1 January 2027, and early application is permitted. But a financed-emissions figure for a period is assembled from borrower data covering that period.

Japan makes this concrete. SSBJ standards, which incorporate IFRS S1 and S2, are mandatory for fiscal years ending March 2027 for TSE Prime issuers at or above ¥3 trillion in market capitalisation, extending to ¥1 trillion in 2028 and ¥500 billion in 2029. Japan’s largest banks sit in the first cohorts. Their first reported financed-emissions figures describe fiscal years that are already running.

The same pattern holds wherever ISSB has landed — our ISSB Adoption Tracker has the jurisdiction-by-jurisdiction position, and CSRD for Banks covers the European overlay, which asks similar questions through a different instrument.

A borrower who starts compiling after being asked is reconstructing a closed year from invoices. A borrower who starts now is recording it as it happens.

Three things to have ready

Know your Scope 1 and Scope 2 for the fiscal year while it is still running. Meter readings and fuel invoices are easy to collect in the month they arrive and expensive to chase eighteen months later.

Keep the method with the number. Factor source, publication year, Scope 2 method, and the judgement calls, written down at the time you make them. This is what turns a figure into evidence.

Fix the entity boundary once and reuse it. The same boundary should answer your lender, your largest customer and, if you later come into scope yourself, your own report. Our ISSB explainer sets out what that report asks for, and the SSBJ roadmap has the Japanese sequence; for the scenario work that follows, see our SSBJ 2027 climate scenario analysis guide.

None of this requires you to be in scope of anything. It requires you to be able to answer for a number a year after you produced it.

If you want to see where your own gaps are, our free SSBJ readiness check and CSRD readiness check each take a few minutes and return a specific list rather than a score. Socious Report is for the part after that: one dataset that produces CSRD, SSBJ and ISSB reports, with an independent Socious Verify credential attached to the result.