The Data You Don’t Collect in 2026 Will Haunt You in 2028

Every audit season, boardrooms produce the same quiet confession: “We should have started earlier.” Nigeria’s sustainability reporting rules are about to produce a much bigger version of it. The reports will be easy enough to write. The problem is that the data behind them cannot be written. It has to be collected, and the time to start collecting it is now.

The Calendar Is No Longer Theoretical

On 23 February 2026, the Financial Reporting Council of Nigeria (FRC) unveiled its amended roadmap for adopting the IFRS Sustainability Disclosure Standards, alongside Sustainability Reporting Guideline 1 (SRG 1). Law firm DLA Piper Africa describes the two as binding instruments backed by enforcement powers: the roadmap is the calendar, and SRG 1 is the rulebook. In the same season, the Securities and Exchange Commission gave public companies and significant capital market operators until 15 October 2026 to submit their plans for adopting the standards.

Voluntary adoption is over in spirit, if not yet in law. Mandatory reporting for most entities begins on 1 January 2028.

The Real Deadline Is Earlier Than 2028

The detail that catches many leaders off guard is that the first filing arrives before the reporting year even starts. DLA Piper Africa notes that for a company with a January financial year, Stage 1 of the FRC Readiness Test falls due on 30 September 2027, three months before the mandatory start date. That filing includes a board resolution, a gap analysis and an implementation plan. Stage 2 follows on 31 March 2028, covering the disclosure policy, materiality assessment and governance evidence. Stage 3, due 30 June 2028, requires FRC registration, scenario analysis, a risk framework and sustainability controls.

Counted from today, the first of those filings is less than a year away. A board cannot resolve to adopt standards it has not studied, and a gap analysis cannot be honest if no one has looked for the gaps.

Wider Than Most Companies Expect

The rules apply to Public Interest Entities, a deliberately broad category. According to DLA Piper Africa, it covers listed companies, CBN-regulated financial institutions, all public limited companies, holding companies of public or regulated entities, private companies with turnover of ₦30 billion or more, concessions, government licensees and privatised entities, public-works contractors at ₦1 billion or above, and government bodies. SMEs follow in 2030.

The practical consequence is that many privately held and government-linked businesses are caught for the first time. A family-owned manufacturer that has never published a sustainability line may find itself inside the net. For these firms, “we are not listed” is no longer a safe sentence.

Why Data, Not Disclosure, Is the Hard Part

Writing a disclosure is a matter of weeks. Building the evidence behind it is a matter of years. Analysts advising on the roadmap have stressed that sustainability reporting cannot be reconstructed in arrears: if the year you needed to measure has passed, the numbers are simply gone. That is why 2026 matters. The energy used, the emissions produced, the climate risks identified, the workforce and community data recorded this year are the raw material of the credibility you will be asked to show later.

The rules also raise the personal stakes. DLA Piper Africa highlights three features that tend to surprise businesses:

• Separate controls: sustainability data needs its own internal controls, distinct from financial controls. Strong financial controls do not cover it.
• Personal sign-off: a named, FRC-registered manager must personally sign the disclosures with a registration number.
• Interim reporting: listed companies must also file quarterly sustainability disclosures, which means quarterly data collection rather than one annual scramble.

Assurance follows. External assurance phases in over the early years of reporting, beginning with limited assurance and moving to reasonable assurance by the seventh year. An assurer can only verify what a company has actually recorded. Missing data does not become acceptable data because the deadline arrived.

A Sector Not Moving at One Speed

Readiness is uneven. The FRC has commended Access Bank, Fidelity Bank, MTN Nigeria and Seplat Energy for leadership in adopting the standards early. Yet it is reported that banks have been stepping up ESG compliance ahead of 2028 while insurers are lagging, with some industry leaders still lacking a basic understanding of sustainability concepts.

That gap is an accountability question as well as a compliance one. Insurers price climate risk. Banks finance it. If the institutions that underwrite the economy are unevenly prepared to measure their own exposure, everyone who depends on them inherits that uncertainty.

The Question Behind the Question

At CSR Reporters, we pay close attention to the distance between what organisations announce and what they can prove. Mandatory reporting narrows that distance only if the data underneath is real. A report built on activity counts, such as trees planted, workshops held and donations made, will pass the formatting test and fail the credibility test. Outcomes are what matter: who benefited, what changed, and what evidence exists.

This is especially true for the social half of sustainability. Communities are rarely asked to confirm what companies claim on their behalf. The organisations that will earn trust in 2028 are the ones that begin collecting beneficiary feedback and community-level evidence now, not those that scramble to write about it later.

What Leaders Should Do Now

• Confirm whether your entity is a Public Interest Entity. The definition is broader than most expect.
• Secure board approval to adopt IFRS S1 and S2, the foundation of the Stage 1 filing.
• Commission an honest gap analysis of governance, data and registration.
• Identify the manager who will sign, and start the FRC registration process early.
• Build sustainability controls separate from financial controls.
• Begin systematic data collection this year, including community and beneficiary evidence.