Data Protection and Employees: GDPR Employer's Guide
GDPR compliance for employee data. What you can collect, legal bases, retention, subject access requests, and employee monitoring rules.
As an employer, you process significant amounts of employee personal data. GDPR applies to all of it. Here's how to stay compliant.
Key GDPR Principles
When processing employee data, you must follow these principles:
1. Lawfulness, Fairness, Transparency
- Have a legal basis for processing
- Be fair in how you use data
- Tell employees what you do with their data
2. Purpose Limitation
- Collect for specified, explicit purposes
- Don't use for incompatible purposes later
3. Data Minimisation
- Only collect what you need
- Don't gather excessive information
4. Accuracy
- Keep data accurate and up to date
- Allow employees to correct errors
5. Storage Limitation
- Don't keep longer than necessary
- Have clear retention periods
6. Integrity and Confidentiality
- Keep data secure
- Protect from unauthorised access
7. Accountability
- Be able to demonstrate compliance
- Document your practices
Legal Bases for Employee Data
Contract Performance
Most employment data processing:
- Paying wages
- Managing absence
- Performance management
- Benefits administration
Legal Obligation
Where law requires it:
- Tax and NI records
- Pension auto-enrolment
- Right to work checks
- Health and safety records
Legitimate Interests
For business needs (balanced against employee rights):
- Internal communications
- Business planning
- Training records
- Some monitoring
Consent
Use sparingly for employees. Consent isn't truly "free" when there's a power imbalance. Avoid relying on consent where another basis applies.
Possible for:
- Optional benefits
- Social events
- Photo consent for marketing
What Data Can You Collect?
At Recruitment
| Can Collect | Notes |
|---|---|
| CV and application | For assessment |
| Interview notes | Keep factual |
| References | After offer made |
| Right to work | Required by law |
| Health questions | Only after offer, if relevant to role |
During Employment
| Can Collect | Legal Basis |
|---|---|
| Personal details | Contract |
| Pay and benefits | Contract |
| Absence records | Contract/Legitimate interests |
| Performance records | Legitimate interests |
| Training records | Legitimate interests |
| Disciplinary records | Legitimate interests |
Special Category Data
Extra restrictions apply to:
- Health information
- Trade union membership
- Racial or ethnic origin
- Political opinions
- Religious beliefs
- Genetic/biometric data
- Sexual orientation
Only process if:
- Necessary for employment law obligations
- Employee has given explicit consent
- Other specific condition applies
Privacy Notice for Employees
What to Include
Tell employees:
- Who you are (data controller details)
- What data you collect
- Why you collect it (purposes)
- Legal basis for each purpose
- Who you share it with
- How long you keep it
- Their rights
- How to complain
When to Provide
- At recruitment (for candidates)
- At onboarding (for new employees)
- When purposes change
How to Provide
- Staff handbook
- Intranet
- Separate privacy notice
- Make it accessible
Subject Access Requests (SARs)
What Employees Can Request
Any employee (or former employee) can request:
- Confirmation you hold their data
- A copy of their personal data
- Information about how it's processed
Your Obligations
| Requirement | Detail |
|---|---|
| Time limit | One month (can extend to 3 for complex) |
| Format | Electronic if requested electronically |
| Cost | Free (unless excessive/repetitive) |
| Identity check | Verify it's really them |
What to Provide
- All personal data in your systems
- Emails about them
- Personnel files
- Absence records
- Performance reviews
- Disciplinary records
- Occupational health reports (usually)
What You Can Withhold
- Third party personal data (without consent)
- Legal professional privilege
- Management forecasting (in some cases)
- Confidential references you gave
- Data covered by other exemptions
Handling a SAR
- Acknowledge within a few days
- Verify identity if needed
- Search all systems (including emails, archives)
- Review and redact third party data
- Compile response
- Send within deadline
- Document what you provided
Data Retention
General Principle
Keep data only as long as necessary for the purpose collected.
Typical Retention Periods
| Record Type | Suggested Retention |
|---|---|
| Recruitment records (unsuccessful) | 6-12 months |
| Personnel files | 6 years after leaving |
| Payroll records | 6 years after relevant tax year |
| Pension records | 6 years after benefits end |
| Health and safety | 3 years (longer for serious incidents) |
| Working time records | 2 years |
| Training records | 6 years after leaving |
| Disciplinary (spent) | Depends on type |
Create a Retention Policy
Document:
- What records you keep
- How long you keep them
- When and how you delete them
- Who is responsible
Employee Monitoring
General Rules
You can monitor employees but must:
- Have a legitimate reason
- Be proportionate
- Tell employees (in most cases)
- Balance your needs against privacy
- Document your decision
Types of Monitoring
Email and internet:
- Tell employees it happens
- Explain what you monitor and why
- Access work emails only when necessary
CCTV:
- Display signs
- Only in appropriate areas (not toilets/changing)
- Delete footage when no longer needed
GPS tracking:
- Only for work vehicles during work time
- Tell employees
- Don't track personal use
Call recording:
- Tell employees and callers
- Only if justified (training, quality, evidence)
What You Need
- Policy explaining monitoring
- Legitimate purpose
- Data Protection Impact Assessment (for significant monitoring)
- Employee notification
- Proportionate approach
Data Sharing
With Third Parties
You may share employee data with:
- HMRC (legal obligation)
- Pension providers (contract)
- Payroll providers (legitimate interests with contract)
- Occupational health (legitimate interests)
Requirements for Sharing
- Have a legal basis
- Data processing agreement with processors
- Tell employees in privacy notice
- Ensure adequate protection
International Transfers
If sharing outside UK/EEA:
- Ensure adequate protection
- Use standard contractual clauses
- Or other approved mechanism
Data Breaches
What Is a Breach?
Security incident leading to:
- Destruction of personal data
- Loss of personal data
- Alteration of personal data
- Unauthorised disclosure
- Unauthorised access
Examples
- Lost laptop with employee data
- Email sent to wrong person
- Hacking incident
- Paper files in unsecured bin
Your Obligations
Report to ICO within 72 hours if:
- Risk to individuals' rights and freedoms
Notify affected employees if:
- High risk to their rights and freedoms
Always:
- Document the breach
- Investigate
- Take steps to prevent recurrence
Employee Rights
Under GDPR, employees can:
| Right | What It Means |
|---|---|
| Access | See their data (SAR) |
| Rectification | Correct inaccuracies |
| Erasure | Delete in some circumstances |
| Restriction | Limit processing |
| Portability | Get data in portable format |
| Object | Object to processing |
Responding to Rights Requests
- Respond within one month
- Take them seriously
- Document your response
- Explain if you can't comply
Record Keeping
What to Document
- What data you process
- Why (purposes and legal bases)
- Who you share with
- Retention periods
- Security measures
- Data Protection Impact Assessments
Records of Processing Activities
If you have 250+ employees, you must maintain formal records. Smaller employers should keep records anyway as best practice.
Compliance Checklist
Policies and Notices
- Employee privacy notice
- Data protection policy
- Retention policy
- Monitoring policy
- Data breach procedure
Processes
- SAR handling process
- Secure storage of records
- Deletion process
- Breach response plan
Training
- Staff awareness of data protection
- Manager training on handling requests
- HR training on employee data
Documentation
- Records of processing activities
- Data processing agreements
- Consent records (where used)
- DPIA records
Related answers
Employment Contract Requirements UK
What must be included in a UK employment contract? Learn the legal requirements for written statements of particulars and what happens if you get it wrong.
Employee Monitoring: What Employers Can and Cannot Do
Legal rules on monitoring employees. CCTV, email monitoring, GPS tracking, keystroke logging, and balancing business needs with privacy rights.
Grievance Procedure UK: Employer's Guide
How to handle employee grievances properly. Follow the ACAS Code, avoid tribunal claims, and resolve workplace issues effectively.
Frequently Asked Questions
- Do I need employee consent to process their data?
- Usually no. Most employee data processing relies on 'legitimate interests' or 'performance of contract' as the legal basis, not consent. Consent from employees is problematic because of the power imbalance - it may not be truly 'freely given'.
- How long can I keep employee records?
- Keep records only as long as necessary. Typical periods: payroll records 6 years, personnel files 6 years after leaving, recruitment records 6-12 months. Have a clear retention policy and delete when no longer needed.
- Can employees ask to see their personnel file?
- Yes. Under GDPR, employees can make a Subject Access Request (SAR) to see all personal data you hold about them. You must respond within one month, can extend to three months for complex requests, and must provide the data free of charge.