Original Insight
Private Companies and ISSB: How IFRS Impacts ESG in SA
For a long time, sustainability and ESG (environmental, social, governance) reporting was viewed as a corporate headache reserved for the heavyweights - the listed giants on the Johannesburg Stock Exchange (JSE). If you are a private company, a commercial farm, or a large non-profit in South Africa, sustainability reports were often treated as a "nice-to-have" marketing tool rather than a boardroom imperative.
But as we navigate 2026, the landscape has fundamentally shifted. Regulatory nets are widening, and global supply chains are tightening. South Africa is building on this global momentum and updating its legislation accordingly. Understanding these mandates is no longer about ticking boxes, it is about ensuring the longevity and fundability of your enterprise. Today, companies that constitute “Public Interest Entities” are being pulled directly into the spotlight.
The Public Interest Score (PIS)
The Public Interest Score (PIS) is a simple but powerful metric that essentially measures your impact on society.
In South Africa, the line between a "private" company and a company that has a significant impact on the "public interest" is drawn by the PIS. Every year, a company must calculate its PIS based on its number of employees, turnover, third-party liabilities, and shareholders.
- PIS of 350+: Triggers a mandatory statutory audit and the submission of digital financials via the CIPC’s iXBRL system.
- PIS of 500+ (In any two of the last five years): Triggers the legal requirement to maintain a Social and Ethics Committee (S&E Committee).
How We Got Here: A Brief History of South African Governance
South Africa has a history of being a global leader in corporate governance, often punchier than many developed nations. To understand the current pressure, we have to look at the foundations laid over the last three decades:
- The King Reports (I-IV): Since 1994, the King Committee has evolved our understanding of a company’s role in society. King II (2002) was a global pioneer in introducing "triple bottom line" reporting, focusing on people, planet, and profit. By the time King IV was released in 2016, the philosophy shifted from "comply or explain" to "apply and explain," making integrated reporting the gold standard for transparency.
- The Companies Act of 2008: This introduced the S&E Committee mandate (Section 72), requiring certain companies to monitor their impact on community development, the environment, and consumer relationships.
- JSE Sustainability Disclosure Guidance (2022): While aimed at listed entities, this guidance aligned South African reporting with global standards like the GRI and TCFD, creating a "trickle-down" expectation for any private company wanting to do business with a listed giant.
The Legislative Shift: Hard Mandates Arrive
Two major pieces of legislation signed in 2024 have changed the stakes for long-term resilience and planning for Public Interest Entities and put the wheels in motion for a new King update.
This Amendment significantly bolsters the power and transparency of the S&E Committee. High-PIS companies must now prepare a formal S&E Committee report to be presented at their AGM. More provocatively, it introduces remuneration transparency. While currently focused on public and state-owned entities, the governance expectation is that large private companies with high PIS must begin disclosing, for example, pay ratios (the gap between the top 5% and bottom 5% of earners) to address South Africa’s social inequality.
This Act formalizes South Africa’s transition to a low-carbon economy. It allows the government to set carbon budgets for specific sectors. If your private company (be it in manufacturing, mining, or large-scale agriculture) exceeds its allocated carbon budget, you face severe financial penalties and a significantly higher carbon tax rate.
Effective since 1 January 2026, King V shifts the focus of the previous iterations toward the concept of Double Materiality (financial risks AND the organization's impact on society and the environment), as well as replacing the more flexible narrative-driven reporting of King IV with a structured framework to eliminate vague or generic disclosures.
The New Global Baseline: ISSB (IFRS S1 and S2)
While local laws provide the "why," the International Sustainability Standards Board (ISSB) provides the "how", through IFRS S1 and S2:
IFRS S1 (General Requirements): This requires you to disclose all sustainability-related risks and opportunities that could reasonably affect your company’s cash flow, access to finance, or cost of capital over the short, medium, and long term. It moves ESG from the "sustainability report" directly into the financial boardroom, treating sustainability data with the same level of scrutiny as your financial statements.
IFRS S2 (Climate Disclosures): This is the technical heavy-lifter. It requires disclosure of Scope 1 (direct emissions), Scope 2 (indirect energy emissions), and Scope 3 (entire supply chain emissions). This means organizations are now responsible for reporting the carbon footprint of your suppliers, transport partners, and your end consumers.
However, the real power of IFRS S2 lies in its “climate-first” lens. It mandates that organizations perform Climate Scenario Analysis - essentially a high-stakes “stress test” for your business model. This involves using global climate models to project how your organization would survive under different warming scenarios (e.g., a 1.5°C vs. a 4°C world). You are required to financially quantify:
Physical Risks: The direct impact of "acute" events like floods and wildfires, or "chronic" shifts like the increasing frequency of droughts and heatwaves.
Transition Risks: The economic shocks of moving to a low carbon economy, such as the implementation of aggressive carbon pricing, shifting energy costs, and the risk of "stranded assets" (assets that become obsolete or unmarketable due to climate policy).
Consider a large, non-listed manufacturing and logistics firm that hit a PIS of 800 in 2025.
Instead of waiting for a mandate, they treated IFRS S2 as a strategic roadmap. Through this reporting, they were able to show that by 2036, this company is the "safe bet" for funders, employees, and insurers over ten years for three reasons:
Diversification and Resilience: Through climate forecasting, they realized their primary coastal warehouse was at high risk for "1-in-100-year" flood events. They diversified their footprint to inland "dry ports" and transitioned to a hydrogen-electric fleet long before diesel became prohibitively expensive due to carbon tax hikes. When the flood hit, they were still able to supply their customers, and managed to capture more of the market due to panic buying - at a premium.
Quantification over Guesswork: They didn't just tell their bank they were "going green" - they proved it with audited data. Consequently, they secured a Sustainability-Linked Loan (SLL) at an interest rate 1.5% lower than their competitors.
Lowered Insurance Premiums: While other firms saw their premiums skyrocket or were denied coverage entirely due to climate-related losses, this firm used their scenario analysis to negotiate better terms. Insurers viewed them as a lower risk because they had physically "hardened" their assets against extreme weather.
The Trigger: South Africa Moves to Align
As of early 2026, over 37 jurisdictions - representing roughly 60% of global GDP - have already adopted or are actively implementing the ISSB standards. This has effectively established IFRS S1 and S2 as the universal language of business. South Africa has moved aggressively to ensure it isn't left behind. The JSE has already updated its Sustainability Disclosure Guidance to reflect the IFRS principles, and with King V now in effect, the governance bar has never been higher. The most significant signal for private companies however, comes directly from the Companies and Intellectual Property Commission (CIPC).
The CIPC, in collaboration with the Department of Trade, Industry and Competition (DTIC), is currently concluding a Regulatory Impact Assessment (RIA) - launched via Notice 06 of 2025 - specifically to determine the roadmap for mandatory sustainability reporting. The "smoking gun" that mandates are imminent is found in the tech: the CIPC has already updated its digital iXBRL filing taxonomy to include a dedicated Sustainability Disclosure Module. While currently open for voluntary early adopters, this digital infrastructure is built specifically to ingest IFRS S1 and S2 data. For high-PIS entities, the message is clear: the CIPC has laid the groundwork, signaling that the move from voluntary to mandatory disclosure of sustainability data is imminent.
The Private Company Impact
While we often associate high-impact reporting with listed companies, the high-PIS threshold captures a surprisingly diverse range of private entities. Legal, accounting, and engineering, as well as the private education and agriculture industries, increasingly find themselves in this category due to high turnovers and large partner/staff headcounts. For the professional services sectors, the focus is predominantly on Governance and Social metrics, specifically ethical billing practices, data privacy, and the new mandates around vertical pay-gap disclosures. Conversely, for sectors like agriculture, Environment and Social metrics take center stage as resource scarcity and social transformation become business-critical.
A quick look at two of these sectors to illustrate the changes and strategic value adopting these standards bring.
Agriculture: Beyond Traditional Compliance
Most commercial agribusinesses hitting the PIS threshold are already "audit-ready," having spent years reporting on labor and environmental metrics for SIZA (Sustainability Initiative of South Africa) or GlobalG.A.P. However, the ISSB standards and the Climate Change Act introduce a new layer of complexity: financial quantification.
A large berry exporter in the Western Cape recently navigated this transition.
By producing a verified report on carbon sequestration and climate-risk stress testing (proving their water-security strategy for the next decade), they did more than just protect their market share with a major UK retailer and future-proof their crops aginst droughts.They used that data to qualify for a Sustainability-Linked Loan (SLL) from a local bank. This reduced their interest rate by 50 basis points because they met their water-reduction targets and the bank recognized their proactive management of long-term environmental risks.
Private Education: Unlocking Alternative Funding
Large private schools and educational NPCs are often high-PIS entities, operating with massive turnovers and hundreds of staff members. As entities of "Public Interest," they are now expected to use their S&E Committees to report on social metrics like transformation, employment equity, and even their environmental footprint (renewable energy, waste management), as parents and donors increasingly demand ethical governance. This transparency is becoming a reputational requirement that also opens doors to alternative funding.
A prominent private school group oversees a solar-conversion project to avoid higher electricity bills as a result of the grid facing carbon tax hikes, and a water-harvesting project to prepare for likely water restrictions as a result of increased drought frequencies and maintenance on water utility networks.
By providing audited data on their projected carbon reduction, they secured a SLL at a significantly lower interest rate than standard commercial debt. The monthly savings on their municipal bills effectively covered the loan repayments, allowing the school to future-proof its campus without aggressively hiking tuition fees or fundraising efforts.
Why Act Now? The Strategic Value of Early Adoption
Even if your company sits just below the mandatory threshold, or the CIPC’s RIA comes back and does not immediately mandate these developments, the market is moving faster than the law.
Access to Capital: Banks like Standard Bank and Nedbank are now using the National Treasury’s Green Finance Taxonomy. If you can’t prove you are a low-risk entity, your cost of borrowing will inevitably rise.
Supply Chain Survival: If you are a supplier to a listed company, they need your data to complete their own ISSB-aligned reports. If you can’t provide it, you are a liability in their supply chain, reducing your ability to stay competitive.
Risk Identification: Identifying sustainability risks early is essentially a financial shield for your balance sheet. By quantifying your exposure to physical and transition risks today, you can proactively "harden" your assets, ensuring you remain insurable at competitive rates and avoiding the devastating "sticker shock" of emergency capital outlays or stranded assets down the line.
The Bottom Line
The era of flying under the radar is officially over. Whether you are running a school, a commercial farm, or a private enterprise, the combination of the Companies Amendment Act, the Climate Change Act, and the rapid adoption of ISSB standards means that transparency is your new license to operate and build a resilient business model.
FAQ
Where do I start?
Start with two steps: Calculate your Public Interest Score (PIS) to understand your (future) legal standing. Conduct a Materiality Assessment to determine what data you will need to start collecting. You don’t need to report on everything at once; focus on the metrics that most significantly impact your specific industry and your financial bottom line.
Do I need an external third party?
While you can track data internally, using a third party for the initial strategy, framework setup, climate forecasting, and scenario analysis quantification is highly recommended. Sustainability reporting is technical, and external experts can ensure your disclosures meet the rigorous requirements of IFRS S1 and S2, preventing future rework.
Will this be expensive?
Initial setup (investing in data systems or consulting) does carry a cost. However, it’s helpful to view this as a preventative investment. The "cost of inaction" is often much higher, manifesting in spiked insurance premiums, carbon tax penalties, and higher interest rates, as well as a last minute scramble to find consultants and systems before facing penalties for non-compliance when these standards become mandatory. Many businesses find that the operational efficiencies discovered through the journey of aligning with these standards (like energy and water savings) eventually pay for the reporting process itself. Often partnering with the right company can save you on costs as a result of trial and error.
Will this data be audited?
Yes. If you have a PIS of 350 or more, your financials must be audited. As the CIPC moves toward mandatory sustainability disclosures, your non-financial data will likely be submitted via the iXBRL system alongside your financials, making it subject to independent assurance and regulatory scrutiny.
The expectation is that this will be audited using the new ISSA 5000 standards.
I don’t see the value in this...
“Value” is about more than just this month’s profit; it’s about business resiliency. Without verifiable sustainability data, your business becomes a black box of hidden risks to banks, insurers, and large corporate clients. Reporting is how you prove your business is a safe, long-term bet in a volatile world.