Professional Firms Insight: remote working abroad – what are the risks?

29 March 2021 / Insight posted in Article

The professional services sector has adapted well to remote working during the Coronavirus pandemic. This has led to some employees of professional firms deciding to live and work abroad for a variety of reasons.

Unfortunately, tax and legal problems can arise for the employer and employee where staff have decided to work remotely from another country.

Whether these overseas remote worker arrangements are temporary, or part of a new long-term way of working, tax and legal risks arise for the UK employer and the employee. The main issues for remote working arrangements are considered below.

Income tax

A common misconception is that an employee hired and paid by a UK business is only subject to UK income tax on their earnings. In fact, unless the employee is protected by a double tax agreement, the employee’s earnings can also be subject to income tax in the country where they physically perform their duties.

The starting point is to consider where the employee is tax-resident and if there is a comprehensive double tax agreement between the UK and the other country. Broadly speaking, where an employee remains UK-resident and the days spent in the other country do not exceed 183 days in a prescribed 12-month period, then no tax should be due in the other country. Other conditions apply, and the employer should check the terms of the double tax treaty in place.

For longer-term remote working arrangements, or employees that work in a country for which the UK has no comprehensive double tax treaty, tax is likely to be due in the other country, even when the employee’s earnings remain subject to UK tax.

A multitude of income tax scenarios can result from overseas remote working arrangements. Some of the most common are summarised below.

Income tax outcome When this outcome may arise
The employee remains subject to UK tax only on their earnings Where the remote working period is short term (i.e. less than six months) and the employee is protected by a double tax treaty
The employee remains subject to UK tax, but is also subject to tax in the other country (with a foreign tax credit claimed in UK) Where the remote working period is medium term (i.e. greater than six months) but not long enough for the employee to break UK residence
The employee ceases to be subject to UK tax, and only tax in the other country is due Where the remote working arrangement is long term such that he employee breaks UK residence and acquires residence in the other country
The employee is subject to foreign tax and is also subject to UK tax (with a foreign tax credit claimed in the other country) Where the remote working arrangement is long term, but the employee performs some work days back in the UK (e.g. short business trips)

The above table is not exhaustive, but provides the most likely outcomes based on our experience advising professional services firms on their remote worker arrangements.

Social security

It is often assumed that the social security positon will follow the tax position. However, social security is determined under separate rules, and a social security liability may arise even when there is no charge to income tax.

The starting point is to consider whether the other country where the work duties are performed remotely is in:

  • The European Union
  • A reciprocal agreement country
  • Or somewhere else (i.e. a non-agreement country).

For remote working in the European Union and countries that have a social security reciprocal agreement with the UK, social security is usually due in the country the work is performed. However, for short-term remote working arrangements, it may be possible to apply for a certificate of coverage so that social security is only due in the UK.

Brexit has somewhat complicated the position in European Union countries. Depending on when the remote working arrangement commenced, employers will need to consider either the pre 1 January 2021 EU social security regulations or the new EU protocol that applied from 1 January 2021 in order to consider the social security position in detail.

Employer responsibilities and further risks

Payroll obligations

International employee payroll withholding failures often cause the highest financial exposure for an employer. Where a liability to tax or social security arises in the other country, the employer may be required to withhold the tax and social security (e.g. by operating a local payroll in the other country).

Permanent establishment risks

Corporate tax and VAT liabilities as well as other reporting requirements may arise for the employing business where a permanent establishment is inadvertently created by virtue of the employee working remotely in an unplanned location. There is a need to review the potential impact of changes to employee roles and responsibilities to ensure that a permanent establishment has not been created inadvertently.

Immigration and local law

Work permits must be in place, otherwise both the employer and employee face penalties and potential expulsion from the country they are working from. Employers may not have been aware of the overseas remote work, and it is possible that no work permits have been applied for in the other country.

Employees working remotely overseas will also bring about compliance with the country’s local labour laws. Employers must ensure they adhere to working time requirements, leave and overtime entitlements, and many more.


It is crucial that employers are able to track the movements of their employees to manage these tax, immigration and legal issues. New tracking systems may need to be implemented to replace existing systems if they are not sufficient.

Getting the right advice

Expert tax and global mobility advice is required to navigate the complex situations that result from the above issues. The Moore Kingston Smith Global Mobility services team are experts in assisting employers with matters relating to international workforces and can help you. For more information please contact your client partner or Steve Asher.