Why sustainability reporting is a job for finance, not marketing

A common and dangerous mistake is taking hold in corporate boardrooms: treating sustainability reporting as a communications exercise rather than a controls function. While many organisations have set environmental, social, and governance (ESG) goals, far fewer have established the rigorous governance infrastructure required to turn those commitments into measurable and auditable results. Without this formal structure, ESG programmes often become disconnected from daily operations, leading to inconsistent metrics, a lack of clear ownership, and reports that lack a defensible data lineage. One expert rightly warns that the common practice of using manual spreadsheets and siloed data would simply fail an audit.

An effective sustainability governance framework formally connects strategy with execution across four distinct layers. It begins with board-level oversight, where directors provide strategic direction and hold leadership accountable for performance. Below this sits executive management, who are responsible for integrating sustainability into the core business strategy. The third layer consists of the cross-functional operational structure, where teams from IT, finance, procurement, and HR translate strategy into tangible initiatives. Finally, the framework is built upon a foundation of documented processes, technology infrastructure, and clear accountability mechanisms, with named owners for targets, data quality, and results.

This structured approach is becoming non-negotiable as sustainability disclosures evolve from voluntary narratives to mandatory, audited statements. The data underpinning these reports often originates from the same core enterprise systems that feed financial statements, including ERP software, procurement platforms, cloud environments, and HR systems. It is therefore imperative that this information is treated with the same level of care, ensuring it is accurate, consistent, and auditable. Integrating sustainability governance with existing corporate decision-making, risk management, and performance measurement not only strengthens compliance but also supports efficiency, resilience, and long-term value creation.

This reality places the CFO and the finance function at the natural centre of ESG governance. The core competencies required—ensuring data integrity, implementing process controls, managing audit processes, and providing strategic oversight—are the foundational skills of a finance department. Finance leaders must take ownership of the end-to-end ESG data supply chain, from its source in operational systems to its final disclosure. This is not a task to be delegated to marketing or a standalone sustainability team. It requires the CFO to orchestrate a cross-functional effort, partnering with the CIO and other leaders to build the systems, processes, and controls necessary to produce reports that can withstand the same level of scrutiny as the company's balance sheet.