Ratio of the wages paid during the reporting period to the highest-compensated full-time employee (including bonus and excluding benefits) compared to the lowest-paid full-time employee.
Ratio of the wages paid during the reporting period to the highest-compensated full-time employee (including bonus and excluding benefits) compared to the lowest-paid full-time employee.
Organizations should footnote all assumptions used, including details about the two positions used in the calculation. See usage guidance for further information.
This metric is intended to capture the distance between the highest and lowest wages in the organization. Organizations with operations in many countries are encouraged to report multiple ratios, with each comparing wages of two employees located in the same country. Organizations should footnote details about the types of positions used in calculating this metric.
This ratio can be calculated based on salaried employees with fixed wages or on employees with variable salaries (such as hourly, daily, weekly, other specified time cycle, or other specified parameter).
In some contexts, this metric can serve as an indicator of whether the outcome being sought by an investor or organization is occurring (the WHAT dimension of impact). For more on the alignment of IRIS metrics to the five dimensions of impact, see IRIS+ and the Five Dimensions of Impact (https://iris.thegiin.org/document/iris-and-the-five-dimensions/). No single metric is sufficient to understand an impact; rather, metrics are selected as a set across all dimensions of impact. When possible, the selection of metrics to measure and describe the five dimensions should be based on best practice and evidence.
Metrics identified as "cross-category" are those that are relevant to any IRIS+ Impact Category or Impact Theme (i.e., these metrics are not specific to any particular industry/category or theme).
June 2025 - IRIS+ v5.3b Released (current version)
No change.
December 2024 - IRIS+ v5.3a Released
No change.
June 2022 - IRIS+ v5.3 Released
Immaterial change. Minor revisions to definition and usage guidance for clarity.
May 2021 - IRIS+ v5.2 Released
No change.
January 2020 - IRIS+ v5.1 Released
No change.
May 2019 - IRIS+ v5.0 Released
No change.
March 2016 - IRIS+ v4.0 Released
Immaterial change. Metric definition language modified to improve accuracy.
March 2014 - IRIS+ v3.0 Released
Immaterial change. Minor revision to definition language for clarity.
November 2011 - IRIS+ v2.2 Released
No change.
February 2011 - IRIS+ v2.1 Released
No change.
September 2010 - IRIS+ v2.0 Released
Immaterial change. IRIS ID changed due to framework upgrade. Minor revision to definition language for clarity.
September 2009 - IRIS+ v1.0 Released
New metric. Wage Equity (OE22) was developed via the Original IRIS Working Group.