Positive vs Negative Impacts in GRI Reporting: What Counts and How to Evidence It

Working edition · 1 August 2026

Sustainability communications frequently call every programme a positive impact: money invested, volunteers mobilised, employees trained or products sold. Those facts can be useful, but they usually describe inputs, activities or outputs. GRI's impact concept is about the effect on the economy, environment or people.

The evidence challenge is strongest for positive claims because programme owners understandably want to show success. A balanced report tests whether the claimed benefit occurred, who experienced it, over what period, with what limitations and whether the same activity produced adverse effects.

Impacts can be actual or potential, negative or positive, short- or long-term, intended or unintended, and reversible or irreversible.

The materiality process identifies both negative and positive impacts across activities and business relationships.

When resources are limited, GRI 3 recommends identifying negative impacts first so that applicable responsible-business-conduct expectations are addressed.

To identify positive impacts, the organisation assesses how it contributes or could contribute to sustainable development through products, services, investments, procurement, employment practices or tax payments.

Activities intended to create a positive contribution can also create negative impacts, and those negative impacts cannot be offset by the benefits.

Reporting principles such as accuracy, balance, completeness and verifiability apply to impact claims.

Figure 1. A credible positive-impact claim moves beyond activity and output evidence to the change experienced by people, the environment or the economy.

GRI does not prescribe a universal counterfactual method. As implementation practice, teams should avoid claiming that an observed benefit was caused by the organisation when the evidence only shows that the programme and outcome occurred at the same time. A comparison group, trend baseline, participant evidence, expert assessment or a reasoned contribution analysis can strengthen the claim. Where this is not available, use contribution language and explain the limitation.

A hypothetical logistics company opens a facility in a high-unemployment area and hires 240 local residents. The initial draft calls this a major positive community impact. The reviewer separates the evidence: jobs and training are outputs; twelve-month retention, wage progression and improved access to stable employment are outcomes; local worker interviews support a contribution to employment and household income. The same review identifies long shifts and transport barriers affecting some workers. The final report presents the positive contribution with its scope and limitations and reports the negative workforce impacts and corrective actions separately.

Calling expenditure, volunteering hours or participation an impact.

Using intended benefit as evidence of actual benefit.

Counting everyone reached as someone positively affected.

Reporting only the numerator and not the affected population or baseline.

Making causal claims from correlation or a short-term survey.

Ignoring stakeholder accounts that challenge the organisation's definition of success.

Presenting a reduction in harm as if no residual negative impact remains.

Using a positive programme to offset, balance or distract from a separate severe negative impact.

Selecting only favourable geographies, participants or time periods.

Publishing a quantified social or environmental value without a transparent methodology and sensitivity analysis.