GDPR Compliance Checklist 2026: 10 Critical Steps with 72-Hour Breach Notification Requirements

GDPR Compliance Foundation

With over €4.5 billion in fines issued since 2018 and €1.2 billion in 2025 alone, GDPR compliance remains critical for EU operations. This checklist provides 10 actionable steps based on 2026 enforcement priorities.

Step 1: Cookie and Tracker Audit

Scan all website pages and categorize trackers as essential, analytics, marketing, or functional. Document purpose and duration for each tracker, then remove any unused or undocumented tracking scripts.

• Inventory all cookies and tracking technologies
• Classify by purpose: essential, analytics, marketing, functional
• Document duration (session vs persistent)
• Identify third-party recipients
• Remove unused or orphaned trackers
• Create tracker register for Article 30 records

Step 2: Cookie Consent Implementation

Prior consent is required before any non-essential cookies fire. No pre-checked boxes allowed. Equal 'Reject All' option must be provided with granular control. Proof of consent (timestamp and choices) must be recorded.

Step 3: Privacy Policy Review

Privacy policies must use plain language and include specific disclosures per GDPR Article 13: controller identity, DPO details, processing purposes, legal basis, data categories, recipients, specific retention periods, and international transfer safeguards.

Step 4: Data Subject Rights Mechanisms

Implement mechanisms for access, rectification, deletion, portability, and objection. Responses must be provided within 30 days with identity verification. Machine-readable export formats (JSON, CSV) required for portability requests.

Step 5: Data Processing Agreements

Article 28 requires DPAs with all third-party vendors handling personal data (hosting, analytics, etc.). Agreements must cover purpose limitation, security measures, sub-processor rules, and breach notification. Review annually.

• Maintain inventory of all data processors
• Execute written DPA before processing begins
• Include Article 28(3) mandatory clauses
• Document sub-processor authorization process
• Specify breach notification timelines
• Review and update DPAs annually

Step 6: Technical Security Measures

Article 32 requires appropriate security measures including HTTPS everywhere with HSTS, Content Security Policy, X-Frame-Options, CORS policies, and Subresource Integrity for third-party scripts.

Step 7: Email Authentication Configuration

Implement SPF, DKIM, and DMARC records for email authentication. TLS encryption required for transmission. One-click unsubscribe mandatory for marketing emails with suppression list maintenance for opt-outs.

Step 8: Data Minimization Enforcement

Article 5(1)(c) requires collecting only necessary data. Audit all forms and remove unused optional fields. Implement automatic deletion after specified retention periods.

Step 9: Breach Response Plan

Supervisory authority notification required within 72 hours if breach poses risk to individuals. Affected users must be notified without undue delay for high-risk breaches. Maintain breach register for all incidents.

Step 10: Continuous Monitoring

Article 5(2) accountability principle requires continuous compliance monitoring. Use automated drift detection and regular scans for script/plugin changes. 80+ guides and 30+ country guides available for reference.