A Guide to GDPR for US Employers Handling EU & UK Employee Data
What US Employers Need to Know About GDPR and EU/UK Employee Data
US employers handling employee data from the EU or UK must comply with GDPR and UK GDPR, even if their company is based in the United States. Non-compliance can result in significant fines, legal exposure, and reputational damage, with €1.2 billion in fines issued in 2025 alone. GDPR governs the collection, storage, and processing of sensitive employee data, including identification, payroll, benefits, health, and performance records. US HR teams need to establish lawful bases for processing, implement robust data security measures, provide transparency to employees, and ensure proper cross-border data transfer mechanisms. This guide outlines essential GDPR compliance requirements, top HR risks, and practical steps for US employers to protect their organisation and employees while staying fully compliant.
If your US HR team manages employee data from Europe or the UK, understanding GDPR compliance isn’t just optional; it’s critical.
- €1.2 billion in GDPR fines were issued in 2025. – source
- Cumulative fines since 2018 are over €7.1 billion.
- The average number of daily breach notifications in 2025 was 443
- CMS Law have reported that in Employment data fines have totalled over €355 million.
If your HR team handles EU or UK employee data, Black Mountain can help you mitigate this risk with a comprehensive audit of your current practices, a review of your current policies, and helping you to implement GDPR-ready workflows.
Why GDPR Matters for US Employers?
GDPR applies when your organisation processes personal data of EU or UK employees, contractors, interns, or applicants, even if your company is based overseas, including in the United States.
Employee data is highly sensitive, with additional protection required for including:
- Identification information
- Payroll and Tax Records
- Benefits and insurance data
- Performance and disciplinary records
- Health and leave information
Failing to comply can result in hefty regulatory fines, legal and contractual exposure, and significant reputational damage.
Lawful Basis for Processing Employee Data
US employers cannot rely on consent in employment relationships because of a power imbalance; employees cannot freely refuse without risking their job. Instead, HR teams should rely on legal obligation, contract necessity, or legitimate interest as the lawful basis for processing data under GDPR and UK GDPR.
The main lawful bases are:
- Legal obligation – payroll, social security reporting, statutory benefits.
- Contract necessity – paying salaries, administering benefits, fulfilling employment contracts.
- Legitimate interest – internal HR administration that doesn’t override employee privacy.
Key GDPR Compliance Requirements for US HR Teams
- Data minimisation & purpose limitation
Only collect what is necessary for payroll, benefits, onboarding, compliance, and HR administration. - Transparency
Employees must know what data is collected, why, how long it’s retained, and who it’s shared with. - Security Measures
Encrypt data, enforce access controls, monitor audit logs, and vet vendors handling HR data. - Data Subject Rights
Be prepared to respond to access, correction, erasure, restriction, portability, and objection requests within required timelines. - Cross-Border Data Transfers
Use approved transfer mechanisms (e.g. standard contractual clauses) for EU to US or UK to US data flows.
Top Compliance Risks for US Employers
- Incomplete Privacy Notices – Employees in the EU/ UK must receive clear HR privacy notices
- Vendor & System Gaps – ATS, payroll providers, HRIS, and background check vendors must meet GDPR standards.
- Retention Misalignment – US retention practices often exceed EU/ UK requirements.
- Breach Response Preparedness – GDPR requires regulators to be notified within 72 hours when risks exist.
Practical Lessons for US HR Teams
- Map Your HR Data Lifecycle – Understand where data is collected, stored, accessed, shared, and deleted.
- Review Vendor Contracts – Ensure all HR vendors have valid DPAs and appropriate safeguards for cross-border transfers
- Document HR Policies – Include privacy notices, lawful bases, and retention schedules aligned with GDPR and UK GDPR.
- Implement Rights Request Workflows – HR staff must know how to respond quickly and document every step.
- Train Your Team – Regular GDPR training ensures HR teams are aware of their obligations.
How Black Mountain Can Help
Black Mountain specialises in GDPR compliance for US HR teams managing EU and UK employee data.
We offer:
- GDPR audits & gap analysis
- GDPR reviews
- Employee training
- Ongoing support
Protect your organisation from fines and operational risk, book your GDPR review with Black Mountain today.
📩 enquiries@blackmountainhr.com