UK GDPR Compliance Checklist for Software Development — 40 Points (2025)

📋 40-Point Checklist🇬🇧 ICO-Aligned🔒 Technical Controls📝 Documentation🆓 Free Review
June 202510 min readClickMasters UK GDPR Team

Direct Answer

UK GDPR compliance for software development requires technical controls (encryption, access control, audit logging), organisational measures (DPAs, DPIAs, Privacy Notices), and operational processes (DSARs, breach notification). This 40-point checklist covers all three. ClickMasters implements the technical controls as standard on all projects.

Section 1: Lawful Basis and Transparency

Note: This checklist is for general guidance. UK GDPR is complex — consult a qualified data protection solicitor or DPO for specific advice.

✅ Legal basis documented for every personal data processing activity (consent, legitimate interest, contract, legal obligation, vital interests, public task)

✅ Legitimate Interest Assessments (LIAs) completed for all processing on legitimate interest basis

✅ Privacy Notice published — includes all Article 13/14 required information in plain English

✅ Cookie consent implemented correctly: affirmative opt-in, no pre-ticked boxes, easy to decline as to accept

✅ Marketing consent: PECR-compliant opt-in for email/SMS, separate from service consent

✅ Article 30 Records of Processing Activities (ROPA) maintained — updated when processing changes

Section 2: Technical Security (Article 32)

✅ Encryption at rest: database encrypted (AWS RDS encryption, Azure Transparent Data Encryption)

✅ Encryption in transit: TLS 1.2+ for all connections, HSTS enabled

✅ Access control: RBAC implemented, least privilege principle, no shared accounts

✅ MFA: multi-factor authentication for all admin access to systems containing personal data

✅ Audit logging: all access to personal data logged (who accessed what, when)

✅ Dependency scanning: automated (Dependabot) with 14-day patching for high-severity CVEs (Cyber Essentials)

✅ Penetration testing: CREST-certified pen test within last 12 months

✅ No personal data in source code, logs, or error messages

✅ Staging/test environments use synthetic data only (no real personal data)

Section 3: Data Subject Rights

✅ Right to Access: DSAR response process in place — response within 1 calendar month, free of charge

✅ Right to Erasure: technical mechanism to delete all personal data for a specific user on request

✅ Right to Portability: machine-readable export (JSON/CSV) of personal data on request

✅ Right to Rectification: user can update their personal data

✅ Right to Object: users can object to automated decisions and direct marketing

✅ Right to Restriction: ability to flag data as restricted (retain but do not process)

Section 4: Data Processors and Third Parties

✅ Article 28 Data Processing Agreements in place with all data processors (AWS, Stripe, SaaS tools)

✅ Sub-processors list maintained and disclosed in Privacy Notice

✅ International transfers: no personal data transferred outside UK/EEA without IDTA or adequacy decision

✅ US processors: UK-US Data Bridge (if applicable) or IDTA in place

✅ Processor security assessed: SOC 2 Type II, ISO 27001, or equivalent for key processors

Section 5: Privacy by Design (Article 25)

✅ Data minimisation: only collect data genuinely needed for the stated purpose

✅ Purpose limitation: personal data only used for the purpose for which it was collected

✅ Storage limitation: retention policies defined and technically enforced (automated deletion)

✅ Privacy by default: privacy-protective settings are the default, not an opt-out

✅ DPIA completed for high-risk processing (profiling, special category data, new technology)

Section 6: Special Category Data (Article 9)

✅ Special category data identified: health, biometric, genetic, race/ethnicity, religion, political opinion, trade union, sex life/orientation

✅ Explicit consent obtained for special category data (not just standard consent)

✅ Enhanced security controls for special category data (additional encryption, access controls, audit logging)

✅ DPIA completed for all special category data processing

Section 7: Breach Response

ClickMasters UK GDPR Technical Implementation: ClickMasters implements all technical controls in this checklist as standard on every project: encryption, RBAC, audit logging, DSAR support, right to erasure, UK data residency (AWS eu-west-2 or Azure UK South), Article 28 DPA in client contracts, and Cyber Essentials-aligned dependency scanning. The technical controls are built in — not bolted on.

About the Author

ClickMasters UK GDPR Team UK GDPR technical compliance specialists This checklist is for general guidance. Consult a qualified DPO for specific compliance advice.

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