Are You Managing Payroll Risks Across Borders?

Remote and internationally mobile working arrangements have become increasingly common. While these arrangements can provide greater flexibility for both employers and employees, they can also create complex payroll, tax, social security, and compliance obligations across multiple jurisdictions.

Without appropriate planning, businesses may face unexpected payroll reporting requirements, additional employment taxes, social security liabilities, penalties and increased administrative burdens. Understanding the risks before approving an overseas working arrangement is essential.

A Key Consideration: Permanent Establishment Risk

One of the first questions to consider is whether the employer has or could create a Permanent Establishment (PE) in the country where the employee is working.

A PE may already exist through existing business activities, but it can also arise because of the activities performed by a remote worker.

While determining whether a PE exists is highly fact-specific, the risk is often greater where an employee:

• Holds a senior management or leadership role
• Has authority to negotiate or conclude contracts
• Undertakes key sales or business development activities
• Works indefinitely from another jurisdiction

A temporary assignment will not normally create a PE, even where the employee becomes tax resident in another country. However, long-term, or indefinite remote working arrangements should always be reviewed carefully.

The payroll implications can differ significantly depending on whether the employee is:

• A UK-based employee working for an overseas employer; or
• An overseas employee working for a UK-based employer.

UK-Based Employees Working for Overseas Employers

Where an overseas employer does not have a UK permanent establishment, there will often be no mandatory requirement to operate PAYE. However, this does not mean there are no UK payroll obligations.

National Insurance liabilities may still arise, particularly where the employer is located within the EU and is treated as having UK social security obligations.

Even where PAYE withholding is not mandatory, many employees prefer tax to be deducted through payroll rather than settling liabilities through Self-Assessment. As a result, voluntary PAYE arrangements are frequently implemented.

Summary of UK Payroll Obligations

Where employer NIC liabilities exist, the employer will generally be required to register a PAYE scheme with HMRC and operate payroll reporting.

Where PAYE is not being operated but employer NIC remains due, an NIC-only payroll scheme may be required.

If only employee NIC is payable, the employee may need to register under:

• DPNI (Direct Payment National Insurance) where PAYE is operated voluntarily. Under a DPNI arrangement, the employee is responsible for operating the payroll and accounting for both the PAYE and employee National Insurance liabilities to HMRC on behalf of the overseas employer.
• DCNI (Direct Collection National Insurance) where only employee NIC is payable. Under a DCNI arrangement, the employee is responsible for accounting for and paying their own National Insurance contributions directly to HMRC, as there is no obligation to operate PAYE and no employer NIC liability

It is important that the correct arrangement is put in place from the outset to avoid compliance issues and unnecessary interactions with HMRC.

Pension Auto-Enrolment

Employers should also consider workplace pension obligations. Auto-enrolment requirements can arise where an employee ordinarily works in the UK, regardless of the employer's location.

Although practical enforcement can be challenging for some overseas employers, many organisations choose to provide pension arrangements as part of their wider employee offering.

Overseas Employees Working for UK Employers

When a UK employer allows an employee to work overseas, local tax, payroll and social security obligations can arise quickly.

The same PE principles generally apply when considering whether an overseas PE has been created by the employee's activities.

In addition, employers may face:

• Local payroll withholding obligations
• Employer registration requirements
• Local social security liabilities
• Employment tax reporting obligations
• Double taxation considerations
• Permanent establishment exposure

Social Security Costs

While UK employer NIC rates are often viewed as significant, employer social security costs in some countries can exceed 30% of salary.

These costs are frequently overlooked when budgeting for an overseas relocation or hiring an employee in a new jurisdiction.

Payroll Reporting Requirements

The payroll position varies significantly between countries. Some jurisdictions impose payroll withholding requirements on non-resident employers even where there is no permanent establishment.

Where employees continue to perform UK duties, UK PAYE obligations may still arise, even if they are no longer UK tax resident.

Employers may also need to obtain Certificates of Coverage or equivalent documentation to confirm the correct social security treatment and prevent double contributions.

Given the complexity and variation between jurisdictions, obtaining local advice before implementing an overseas working arrangement is critical.

Other Employment and HR Considerations

Payroll and employment taxes are only part of the overall compliance picture.

Employees working overseas are generally subject to the employment laws of the country in which they work. This can create additional obligations relating to:

• Employment rights
• Working time requirements
• Holiday entitlements
• Termination protections
• Mandatory employment benefits

Some organisations engage an Employer of Record (EOR) or Professional Employer Organisation (PEO) to manage these obligations.

While these arrangements can be effective, particularly for short-term deployments or where a business has limited presence in a country, they can be costly and do not automatically remove any permanent establishment risk.

A review of employment contracts, working practices and local compliance requirements can often provide a more practical and cost-effective solution.

How OSCO Can Help

OSCO's Employer Solutions team supports organisations navigating the challenges of remote and internationally mobile workforces.

Our services include:

• Cross-border payroll reviews
• UK payroll compliance
• International payroll advisory
• Expatriate and shadow payrolls
• Social security and NIC guidance
• Permanent establishment risk assessments
• Employer registration assistance
• Global mobility consulting
• Employment tax compliance support

By identifying risks early and implementing practical solutions, we help employers remain compliant while supporting a globally mobile workforce.

Payroll Across Borders

Supporting employers with UK domestic, expatriate, and international payroll challenges.

From PAYE and National Insurance to permanent establishment risk and global mobility, we provide practical support and solutions to help organisations manage cross-border workforce arrangements with confidence.

UK Payroll | Expat Payroll | Global Mobility | Employer Solutions

"Making cross-border payroll compliance simpler for employers and employees alike."