Mexico’s NIS Reporting Requirements: Why Most Companies Aren’t Ready (Yet)

May 4, 2026

With the introduction of the Normas de Información de Sostenibilidad (NIS), companies are facing more structured expectations around sustainability disclosures. While this represents a major step forward in sustainability disclosure, most organizations are discovering that compliance is ultimately a sustainability data management challenge, not just a reporting requirement.

On paper, the requirements seem straightforward: Report emissions and environmental impact, disclose key sustainability metrics and align with broader sustainability expectations

But once organizations begin preparing for NIS reporting, a different reality emerges. Compliance sounds simple … until you try to collect the data. What looks like a regulatory exercise quickly becomes a question of whether your organization has a reliable sustainability data platform in place to support reporting at scale.

Mexico’s NIS Reporting Requirements

Mexico’s NIS are new ESG reporting standards that require companies to disclose environmental, social, and governance data alongside financial statements.

Starting with the 2025 fiscal year, companies must report:

  • Greenhouse gas emissions (Scope 1, 2, and increasingly Scope 3)
  • Energy consumption and resource usage
  • Waste and environmental impact metrics
  • Governance, risk, and sustainability strategy

These disclosures are aligned with global standards from the International Sustainability Standards Board and International Financial Reporting Standards. These requirements assume organizations already have structured, audit-ready sustainability data, which most companies are still working to build.

Mexico’s NIS reporting begins with the 2025 fiscal year, with the first disclosures published alongside 2026 financial statements.

2025

First year of required data collection

2026

First NIS-aligned reports published

2027+

Expected external assurance requirements

While this timeline may seem manageable, most companies are already behind.

Mexico’s NIS Reporting Is Coming Fast But Most Companies Aren’t Ready

Companies know what needs to be reported. The indicators are defined. The timelines are set.
But once organizations begin preparing, a different reality emerges.

To comply, companies must collect data across multiple sites, gather inputs from suppliers, standardize inconsistent formats, and validate everything for audit and reporting.

What looks like a reporting exercise quickly becomes a complex data operation.

The Challenge: A Data Readiness Problem

Most organizations approach NIS as a reporting exercise. But NIS is fundamentally a data challenge. Companies must collect data from:

  • Multiple facilities and geographies
  • Utility providers with inconsistent formats
  • Suppliers with varying levels of reporting maturity
  • Internal systems that don’t integrate

This creates a core issue: Data fragmentation at scale.

Incomplete Data

Scope 3 emissions often missing and limited supplier and asset-level visibility

Impact: Gaps in disclosures and reliance on estimates

Inconsistent Data

Different units, formats, and definitions across systems

Impact: Time-consuming standardization and higher error risk

Estimated Data

Heavy reliance on industry averages and assumptions due to lack of primary data

Impact: Lower confidence in reported figures

Outdated Data

Annual snapshots used for ongoing reporting needs

Impact: Limited ability to track performance or respond to changes

Disconnected Data

Sustainability data sits in separate systems from finance

Impact: Difficulty aligning sustainability disclosures with financial reporting

The Bigger Risk: Falling Behind as Requirements Evolve

As regulations like NIS evolve, organizations are increasingly required to move toward finance-grade sustainability data, aligned with financial reporting standards.

NIS doesn’t just require reporting, it increases expectations for:

  • Granular, traceable data
  • Consistency across entities and time periods
  • Alignment with financial disclosures
  • Audit-ready documentation

And with external assurance on the horizon, these expectations will only grow. This isn’t just reporting. It’s a shift toward finance-grade sustainability data.

NIS is part of a broader global shift toward:

  • More detailed disclosures
  • Increased regulatory scrutiny
  • Integration with financial reporting

Companies relying on manual processes risk missed deadlines, higher audit costs, and reduced access to capital or supply chain opportunities.

How GLYNT.AI Helps
GLYNT.AI is built to solve the underlying challenge behind NIS reporting: fragmented, unreliable data.

GLYNT enables organizations to:

  • Automates data collection across sources
  • Standardizes inputs into a unified structure
  • Delivers finance-grade, audit-ready data

The result is faster reporting, higher data confidence, and scalable compliance.

NIS Compliance Starts With Data

NIS reporting may be new, but the core challenge is familiar. Companies don’t struggle because they don’t understand the rules. They struggle because their data isn’t ready.

See how leading teams are building finance-grade sustainability data systems

Understanding NIS requirements is one thing. Being able to collect, validate, and report the data is another.