For simple cases like a German with only German income filing in Germany, yes. But you do that yourself, if you spend a few hours reading up on the deductions.

For simple cases like a German with only German income filing in Germany, yes. But you do that yourself, if you spend a few hours reading up on the deductions. In the case of the OP, there is no 'upside' (i.e., potential to get a return if your deductions are high enough); it'll cost you if you made any money, regardless of whether it's been taxed already elsewhere. Plus what the others have said.