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SteuerGo FAQs

 


Field help: of which days in 2025 with foreign tax law applicable

Please enter the number of working days on which the foreign state has the right to tax your wages according to the double taxation agreement (DTA).

Working days are:

  • All contractually agreed working days (weekdays, excluding weekends, public holidays, leave or sick days),
  • on which you actually worked or were obliged to work.

Note: Please check the relevant DTA carefully, as only the conditions specified there are decisive.

Special DTA regulations 

Some DTAs contain special counting rules for working days that deviate from the usual procedure. These special regulations state that working days outside the foreign state may also be counted – as long as certain limits specified in the DTA are not exceeded.

Such special regulations are not automatically recognised by the tax office. Therefore, to be on the safe side, write a short note about this in your tax return.

Example: Under the 34-day rule  in the DTA between Germany and Luxembourg, the right to tax remains with Luxembourg if you work no more than 34 days outside Luxembourg. For example, if you worked 29 days in Germany, still enter the full 260 working days – and not just 231 days, as the right to tax remains fully with Luxembourg.