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Use case · Tax

Cross-border commuters: which country taxes the salary under the treaty

Staff live in one country and work in another. Research the treaty, any frontier-worker clause and home-office days, and set the payroll withholding right.

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Payroll lead in a brown leather jacket holding a printed day-count table on a station platform near a border town

This task, run in azta

azta
Employee lives in Simbach am Inn, Germany, and works for an Austrian employer in Braunau. He commutes daily and works one day a week from home.
DE · AT · NL · BE
Researching

Searching Gesetze im Internet

Searching RIS

Searching wetten.overheid.nl

Searching Justel

The default: tax where the work is done. Under treaties that follow the OECD model, salary is taxable in the country where the work is physically performed. A day worked from home in the country of residence is generally taxable there, not in the employer’s country.
Some treaties have a frontier-worker clause. A frontier-worker clause gives the right to tax to the country of residence, usually where the worker lives and works near the border and returns home daily. The Germany–Austria treaty contains such a clause, with conditions on the border zone and on days away from it.
Agreements can change the day count. Some states have agreed special rules for home-office days of cross-border workers, by protocol or mutual agreement. Check whether one is in force for the treaty and year in question before splitting the salary.
Non-residents may still claim allowances. Germany and the Netherlands both give non-residents who earn almost all their income there access to allowances normally reserved for residents, under conditions. That affects the employee’s return, and sometimes the withholding.
Draft the payroll note
frontier-worker-taxation.docx
Regenerate
Export
Word (.docx)PDF
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Cross-border commuters, Braunau site: where salary is taxed

Employees resident in Germany who live and work within the treaty’s border zone and return home daily are frontier workers under the Germany–Austria treaty. Their salary is taxable in Germany. Payroll keeps evidence on file that each employee meets the conditions, renewed each year.

Home-office days in Germany do not change this for frontier workers, since Germany taxes the full salary. Days on which an employee does not return home, or works outside the border zone, count towards the limit in the treaty and are recorded by the employee.

Employees who do not meet the conditions, for example because they live outside the border zone, are taxed under the general rule: Austria taxes the days worked in Austria, and Germany the days worked at home. Payroll applies the split from the recorded days.

Sources · Gesetze im Internet · RIS · wetten.overheid.nl · Justel
Saved

A replay of this page’s example. In azta every line of the answer carries a citation that opens the provision itself.

The situation

Employees who live in one country and commute to work in another

A payroll lead at a German packaging group runs payroll for two sites: Aachen, with 40 staff commuting daily from the Netherlands and Belgium, and Braunau am Inn in Austria, with 25 commuting from Bavaria. Since a hybrid-work policy came in, staff spend up to two days a week at home. The tax office has asked one employee about his split.

Which country taxes the salary used to be settled per site. Home-office days unsettled it: each treaty treats days worked at home in the residence country in its own way, and some contain a frontier-worker rule with its own conditions. Each treaty has to be read again.

What the research has to settle

The rules behind the answer

The default: tax where the work is done
Under treaties that follow the OECD model, salary is taxable in the country where the work is physically performed. A day worked from home in the country of residence is generally taxable there, not in the employer’s country.
Some treaties have a frontier-worker clause
A frontier-worker clause gives the right to tax to the country of residence, usually where the worker lives and works near the border and returns home daily. The Germany–Austria treaty contains such a clause, with conditions on the border zone and on days away from it.
Agreements can change the day count
Some states have agreed special rules for home-office days of cross-border workers, by protocol or mutual agreement. Check whether one is in force for the treaty and year in question before splitting the salary.
Non-residents may still claim allowances
Germany and the Netherlands both give non-residents who earn almost all their income there access to allowances normally reserved for residents, under conditions. That affects the employee’s return, and sometimes the withholding.

How it runs in azta

From the question to the document

The question, as you would type it

Employee lives in Simbach am Inn, Germany, and works for an Austrian employer in Braunau. He commutes daily and works one day a week from home. Does the frontier-worker rule in the Germany–Austria treaty apply, and which country taxes the salary?
  1. You start with

    Employees who live in one country and commute to work in another

  2. 01

    Describe the commute

    Give the residence, the place of work, home-office days and any days elsewhere. azta searches the treaty and the national income tax rules of both countries.

    Cited research· Free
  3. 02

    Read the treaty clause

    Open the cited provision in the reader to check the conditions in the original language.

    Atlas statute reader
  4. 03

    Draft the payroll note

    Ask for a note per site: who qualifies, how days are split and what payroll keeps on file. Edit it in Canvas.

    Canvas · Ask azta· Pro
  5. 04

    File it with the payroll records

    Export to Word and keep it with the employee records, ready for the tax office’s questions.

    Word export· Pro
  6. You send

    A payroll note on which country taxes the salary under each treaty

What you get

A payroll note on which country taxes the salary under each treaty

Payroll note · draft

Cross-border commuters, Braunau site: where salary is taxed

Employees resident in Germany who live and work within the treaty’s border zone and return home daily are frontier workers under the Germany–Austria treaty. Their salary is taxable in Germany. Payroll keeps evidence on file that each employee meets the conditions, renewed each year.

Home-office days in Germany do not change this for frontier workers, since Germany taxes the full salary. Days on which an employee does not return home, or works outside the border zone, count towards the limit in the treaty and are recorded by the employee.

Employees who do not meet the conditions, for example because they live outside the border zone, are taxed under the general rule: Austria taxes the days worked in Austria, and Germany the days worked at home. Payroll applies the split from the recorded days.

Illustrative excerpt. A real draft is built from your facts and cites the provisions it relies on.

Outcomes on your numbers

What azta is worth on this task

Pro pays for itself after

22 minutes a month

At €75 an hour, that is all the time Pro (€27 a month) has to take off your desk to cover its price.

Example figures. Replace them with your own.

10%50%
Hours back a year
32
Capacity at your rate
€2,430
More commuter tax reviews a quarter
4.1
Return on Pro
7.5×
Hours a year on this task
Today144 h
Your scenario112 h
  • Research
  • Drafting
  • Your review

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Sources azta searches here

  • Gesetze im Internet
  • RIS
  • wetten.overheid.nl
  • Justel
See the full source register

What stays with you

  • The day records and the evidence each employee provides.
  • Applying the result in the payroll system.
  • Answering the tax office on each employee’s position.

Frequently asked questions

Does azta hold the tax treaties?
Ask about the treaty and azta cites the treaty provision together with the national rules. The source register lists what each country’s collection holds.
Does this settle social security too?
No. Social security follows the EU coordination regulations, which use different tests. Ask separately and azta researches them.
Can azta split the salary for me?
No. It establishes the rule for the split and cites it. The split itself is done in your payroll system from the recorded days.

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  1. 1

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  2. 2

    We run it in azta with you

    You watch the research and open the citations against the provision.

  3. 3

    You see the draft it produces

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