RemoteStaffingWiki

Shadow Payroll

Last reviewed October 2026

Definition

Shadow Payroll — A shadow payroll is a reporting payroll run in one country for someone who is paid from another country’s payroll, so tax and social-security reporting is made locally, for example for an employee on international assignment.

A shadow payroll is a reporting payroll run in one country for someone who is paid from the payroll of another. A payroll-provider glossary describes it as a process used to report compensation for employees working temporarily in another country: the employee is usually paid from the home country, but the host country still requires payroll reporting for tax and compliance purposes. HMRC uses the same idea in its guidance on tax-equalised employees assigned to the UK.

How a shadow payroll works

The payroll-provider glossary says the shadow payroll mirrors the employee’s pay so that the correct taxes, social contributions and filings are made locally, and that it requires accurate data alignment between home and host payrolls. It also says errors can lead to compliance risks or double taxation. The worker is paid once; the shadow payroll creates the local record.

The term is industry usage (RemoteStaffingWiki’s description), not a single statutory category. What counts is each country’s own rules on when employment income is taxable there, when employer registration is required and how reporting must be done. The UK arrangements below are one worked example.

The UK example: modified PAYE and EP Appendix 6

HMRC offers modified PAYE arrangements for internationally mobile employees. HMRC’s manual says these arrangements let employers report details to HMRC in a different way or at a different time from what PAYE normally requires. Appendix 6 applies to employees assigned to work in the UK from abroad who are tax equalised: the employer agrees specified net earnings and benefits and meets the UK Income Tax liability. HMRC’s guidance on new employees coming to work from abroad says EP Appendix 6 payrolls are shadow payrolls used to account for tax and National Insurance contributions only, and that UK pay elements must not be included in the Full Payment Submission for the local payroll, because that could create duplicate records.

Under Appendix 6, HMRC’s manual says the employer prepares a best estimate of cash earnings and non-cash benefits at the start of each tax year, with an in-year review for material changes. Related arrangements cover National Insurance: Appendix 7A applies to employees under Appendix 6 who work in the UK from abroad, and Appendix 7B to employees of a UK employer assigned abroad for a limited period who keep a liability to UK National Insurance. Eligibility conditions are detailed; the manual pages are the reference.

The US angle

Home-country rules still apply. The IRS states in Publication 54 (revised December 2025) that a US citizen or resident alien is generally subject to US income tax on worldwide income regardless of where they live, with the same filing requirements as in the United States. A US citizen working abroad can therefore face both home and host reporting, which is why a host-country payroll does not replace US filing. Publication 54 also covers relief such as the foreign earned income exclusion; whether it applies depends on the facts.

When a shadow payroll comes up

  • The payroll-provider glossary says it is common for short-term assignments, secondments and global mobility programmes.
  • HMRC’s guidance applies it to tax-equalised employees assigned to the UK from abroad.
  • A remote employee who moves country is a related case; whether a host-country payroll is needed depends on that country’s rules, so check locally.

Shadow payroll and permanent establishment

A shadow payroll deals with employee tax reporting. It does not settle whether the company itself has a taxable presence in the host country. That is the question of permanent establishment risk, covered in the guide to permanent establishment and remote hiring. Both questions can arise from the same remote worker.

Alternatives to running a shadow payroll

If the business would rather not register as an employer abroad, an employer of record can employ the worker locally, so a separate local payroll is run by the provider. A global payroll arrangement can coordinate payrolls across countries. These models change who runs payroll; they do not change the underlying tax rules for the worker.

Sources

References checked on 31 October 2026

Related Terms

Permanent Establishment (PE) Risk

Permanent establishment (PE) risk is the danger that the way a company hires or operates in a foreign country — through remote employees, a dependent agent, or a fixed place of business — creates a taxable corporate presence there, exposing it to local corporate income tax, registration duties, and penalties even without a registered local entity.

Employer of Record

An employer of record (EOR) acts as the employer for workers supporting a client business, administering employment and agreed services through a specified entity.

Global Payroll

Global payroll is the process of paying employees across multiple countries in compliance with each jurisdiction’s tax, social-security, and labor rules — consolidating local gross-to-net calculation, statutory withholding, and reporting for a distributed workforce, typically delivered through an in-house multi-country system, a network of local providers, or an employer of record.

Total Cost of Employment (TCE)

Total Cost of Employment (TCE) is the fully-loaded annual cost to retain one employee — base salary plus statutory employer contributions, benefits, equipment, software, and management overhead. TCE is higher than base salary in every market because employer-side costs add to what the worker receives. The exact ratio varies by country, employment model, and benefits structure, which is why TCE should be calculated from components rather than applied as a fixed multiplier. TCE is the correct basis for cross-country hiring comparisons — comparing base salaries alone produces misleading results.

Related Resources

FAQ

What is a shadow payroll?
A shadow payroll is a reporting payroll run in one country for a person who is paid from another country’s payroll, so that tax and social-security reporting is made locally.
Does a shadow payroll mean the worker is paid twice?
No. The worker is paid once, normally through the home payroll. The shadow payroll creates the local record and the local tax and contribution calculation without delivering a second payment.
What does HMRC say about shadow payrolls?
HMRC’s guidance says EP Appendix 6 payrolls are shadow payrolls used to account for tax and National Insurance contributions only, and that UK pay elements must stay out of the local payroll submission to avoid duplicate records.
Does a shadow payroll create a permanent establishment?
A shadow payroll does not decide that question. Permanent establishment depends on the company’s activities and the worker’s authority in the host country, and needs separate analysis.
Do US citizens abroad still file US tax returns?
IRS Publication 54 says US citizens and resident aliens are generally subject to US income tax on worldwide income wherever they live, with the same filing requirements as at home. Relief may be available depending on the facts.
Is there a way to avoid running a shadow payroll?
A business can use an employer of record, which employs the worker locally and runs the local payroll. The underlying tax rules for the worker still apply.