The Pay Equity Audit Playbook: How to Find and Fix the Gaps

A pay equity audit is the only honest way to know if you pay fairly. Here is the step-by-step process to run one that holds up to scrutiny.

A pay equity audit is the only honest way to answer the question every employee and regulator is asking: do you pay people fairly for equal work? Assertions are not enough; only analysis is. A rigorous audit compares pay across groups, controls for legitimate factors, and identifies gaps that cannot be explained. The gaps that remain are the ones that demand action. Here is how to run one that holds up to scrutiny.

Step one is defining comparable work. Pay equity is not about paying everyone the same; it is about paying the same for work that is substantially similar in skill, effort, responsibility, and conditions. This requires a job architecture that groups roles into meaningful comparison sets. Without it, the analysis is meaningless. Invest in the job leveling and job architecture first; the audit depends on it.

Step two is gathering the data. You need pay, job level, tenure, performance, location, and working hours for every employee, plus the demographic data that defines the protected groups under comparison. Data quality is the silent killer of audits — incomplete or inconsistent data produces results no one trusts. Clean the data before analyzing it.

Step three is the regression analysis. A multiple regression controls for the legitimate factors that explain pay differences — experience, performance, location, job level — and isolates the residual difference attributable to group membership. That residual is the unexplained gap. It is the number that matters. A gap that disappears when you control for legitimate factors is not an equity problem; a gap that remains is.

Step four is interpretation. An unexplained gap may reflect bias, but it may also reflect unmeasured legitimate factors — negotiation, prior pay history, market timing. The audit cannot prove bias; it identifies where to look. Investigate the gaps, understand their drivers, and determine which are defensible and which are not. Document the reasoning; the documentation is the defense.

Step five is remediation. Closing unexplained gaps requires pay adjustments, and the adjustments must be made thoughtfully — large enough to close the gap, structured to avoid creating new inequities, and communicated clearly. Remediation without communication breeds suspicion; communication without remediation breeds cynicism. Both are needed.

Step six is recurrence. A single audit is a snapshot; pay drifts. Run the audit annually, track the trend, and report it to the board. The goal is not a one-time fix but a system that detects and corrects inequity continuously. For CHROs, the pay equity audit is both a compliance tool and a trust tool — and in 2026, it is no longer optional.

Written by

Damien L. Halliburton

Founder & Chief Editor, Human Capital Roundtable

Damien L. Halliburton is a workforce strategist, executive advisor, and the founder of the Human Capital Roundtable. With over two decades guiding CHROs and people leaders through transformation, he writes on the intersection of AI, hiring, employee relations, and the future of work.