Audit Trail
An audit trail is a chronological record of all changes, transactions, and activities in an HR system, showing who did what and when.
compliance
Category
intermediate
Difficulty
5 min read
Read time
2025-01-15
Updated
Definition
Short definition
An audit trail is a chronological record of all changes, transactions, and activities in an HR system, showing who did what and when.
Detailed explanation
An audit trail is a sequential record that provides documentary evidence of the activities performed within an HR system. It captures who accessed or modified data, what changes were made, and when they occurred.
Audit trails are essential for compliance, security, and operational purposes. They help organisations demonstrate adherence to regulations, investigate issues, and maintain data integrity.
In HR systems, audit trails typically track changes to employee records, leave requests, payroll data, and policy documents, providing a complete history of all modifications.
Practical guidance
How it works
HR software automatically logs all user actions, including data views, edits, approvals, and deletions. Each entry typically includes timestamp, user ID, action type, old value, new value, and IP address. Logs are stored securely and tamper-proof.
Best practices
Use HR software with built-in audit logging
Define retention periods aligned with regulations
Ensure logs are tamper-proof
Regularly review audit trails for anomalies
Legal context
Legal basis
GDPR Article 30, SOX (US), various employment regulations
Jurisdiction: Global
Key provisions
GDPR requires records of processing activities
Employment records must be maintained for specified periods
Financial regulations require transaction audit trails
Changes to personal data should be logged
Official source
Frequently asked questions
How long should audit trails be kept?
Retention periods vary by data type and jurisdiction. General HR records should be kept for 6 years after employment ends (UK), while some financial and tax records require 7 years. Always check specific regulatory requirements.
Can audit trails be edited or deleted?
Audit trails should be immutable (cannot be changed). A proper audit trail system prevents modification or deletion of log entries to maintain their integrity as evidence.
What information is captured in an HR audit trail?
Typically: timestamp, user ID, action type (view/edit/delete), field changed, old value, new value, IP address, and sometimes device information.
Related glossary terms
GDPR
GDPR is data protection law governing how personal data including employee information must be collected, stored, and processed with individual rights and consent requirements.
Record Keeping
Record keeping is the systematic process of creating, storing, and maintaining employee documentation throughout and after the employment relationship.
Data Protection
Data protection is the practice of safeguarding employee personal information from unauthorised access, use, disclosure, or loss.
Compliance Reporting
Compliance reporting is the process of generating and submitting reports required by law or regulation, such as gender pay gap reports, pension submissions, and tax filings.