---
title: Our HR audit methodology
description: "An HR audit is useless if it ships an 80-page deck no one reads. Our 4-phase method — diagnosis, prioritisation, actionable recommendations, implementation plan — targets an operational deliverable, not an academic report. - **Reading time**5 min - **Level**Intermediate -…"
url: "https://illizeo.com/en/centre-aide/our-hr-audit-methodology/"
updated: "2026-09-21"
category: Consulting
---

# Our HR audit methodology

An HR audit is useless if it ships an 80-page deck no one reads. Our 4-phase method — diagnosis, prioritisation, actionable recommendations, implementation plan — targets an operational deliverable, not an academic report.

- **Reading time**5 min
- **Level**Intermediate
- **Last updated**May 2026
- **Module**HR audit

## The 4 phases

1. ### Diagnosis (weeks 1-2)

   Interviews with execs, HR, managers, employee sample. Review of processes, documents, KPIs. Sector benchmark.
2. ### Prioritisation (week 3)

   Ranking workshop with leadership: which initiatives have the most impact / the least friction? Impact / effort matrix.
3. ### Recommendations (weeks 4-5)

   For each priority: goal, steps, resources, KPIs, risks, alternatives. No "you should", only "how".
4. ### Implementation plan (week 6)

   12-month roadmap, governance, budget, first 30-day actions. Exec readout.

## Domains covered

| Domain | Key indicators |
| --- | --- |
| Recruitment | Time-to-hire, quality of hire, cost per hire |
| Onboarding | Probation pass rate, D90 satisfaction |
| Performance | Cycle coverage, calibration, rating-perf gap |
| Compensation | Competitiveness, equity, payroll mass |
| Engagement | eNPS, attrition, satisfaction |
| Compliance | GDPR, labour law, agreements |
| Tools & processes | Digital coverage, redundancy, tech debt |

## FAQ

   How long does a full audit take?

6 weeks on average for 50-500 employees. 8-10 weeks for orgs > 500.

   Who's on the team?

A senior consultant + an analyst, plus on-demand expertise (payroll, legal, change) per topic.

   Confidentiality?

Mutual NDA signed before kick-off. Full anonymisation of verbatims in deliverables.

   And after the audit?

You decide. Many clients move on to an Illizeo deployment support engagement or a focused mandate on a single initiative.

### See GDPR/HRIS compliance audit

Learn how to structure a compliance audit.

[See all Consulting articles](/en/centre-aide/?cat=consulting)

### *Related*