# Shadow Payroll

> Shadow payroll is a parallel payroll calculation run in an employee's host country purely to report and remit the correct local tax and social security, whilst the employee's actual pay continues to be delivered through their home-country payroll.

Shadow payroll is a second payroll calculation kept alongside an employee's real one. No money is paid out through it. Its only job is to work out the income tax and social security due in the country where the person is physically working, the host country, and to report and pay those amounts to the local authorities.

It is used for internationally mobile workers: employees on assignment abroad, or remote workers who spend enough time in another country to create a local tax liability. Their salary still runs through the home-country payroll, so they are paid as normal. The shadow run mirrors that pay in the host country to satisfy local reporting rules without duplicating the actual payment.

Shadow payroll is a compliance mechanism, not a second wage. Get it wrong and the host country can pursue unpaid tax, interest and penalties, often from the employer. This is why cross-border assignments are usually mapped for tax residency before they begin.

## When is a shadow payroll required?

It becomes necessary when an employee triggers a tax or social security obligation in a country other than the one that pays them. That often happens once someone passes a residency threshold, commonly 183 days in a tax year, or takes up an assignment where local law taxes the work from day one.

The exact trigger depends on local rules and any double taxation treaty between the two countries.

## How is shadow payroll different from running a second real payroll?

A second real payroll would pay the employee twice. Shadow payroll pays nothing. It recreates the gross pay figures in the host country only to calculate and remit tax and social security there, then stops. The employee still receives a single salary from the home-country payroll, so their take-home pay does not change.

## Who is responsible for getting shadow payroll right?

The employer carries the compliance risk. Even though the employee is paid elsewhere, the host country holds the employing entity accountable for reporting and remitting local tax correctly. Many companies use an employer of record or a specialist global mobility provider to run the host-country calculation and keep the assignment compliant.

## Key facts

- **Common tax-residency trigger:** 183 days in a host country (Source: Forvis Mazars, verified 2026-07-28)
  Many countries treat an individual as tax resident, and therefore within scope for local payroll reporting, once they spend 183 days or more there in a tax year, though exact rules and treaty tie-breakers vary.

## Frequently asked questions

### Does shadow payroll mean the employee is paid twice?

No. Shadow payroll disburses no money. The employee receives one salary through the home-country payroll. The shadow run exists only to calculate and remit host-country tax and social security, so it affects compliance and reporting, not the amount the employee takes home.

### Which workers typically need a shadow payroll?

Expatriates on international assignment and cross-border remote workers who spend significant time in another country are the usual cases. If someone becomes taxable in a country other than the one paying their salary, a shadow payroll is often the mechanism used to meet the local obligation.

### What happens if shadow payroll is not run when it should be?

The host country can treat the tax as unpaid and pursue it, usually from the employer, along with interest and penalties. Because liability sits with the employing entity, unmanaged cross-border working is a common source of compliance exposure for growing companies.

### How does an EOR help with shadow payroll?

An employer of record already holds a compliant employing entity and payroll capability in the host country, so it can run the host-country calculation and remit local tax correctly. That keeps a mobile or remote worker compliant without the company registering locally itself.

## Sources

- [Navigating Shadow Payroll Tax Compliance for International Employees](https://www.forvismazars.us/forsights/2025/7/navigating-shadow-payroll-tax-compliance-for-international-employees), Forvis Mazars

_Last updated 2026-07-28. Reviewed by Teamed's in-house employment-law team. Source: https://www.teamed.global/glossary/shadow-payroll_