Taxes

Because of the double taxation agreements, that Germany has signed with severals countires, it is important that you inform the HGI about your tax number (Lohnsteuernummer). Which you should get from the city authorities (Bürgeramt or Einwohnermeldeamt) or from the tax authorities (Finanzamt). More about paying taxes and the double taxation agreements here.

There are six income tax classes in Germany:

Class I: Single/widowed/civil partnership/divorced. Married persons not in tax classes II, III or IV
Class II: Single but entitled to single parent allowance
Class III: Married but spouse does not earn wages/is classified under tax category V/recently deceased
Class IV: Married (not separated); both earning and residing in Germany
Class V: Married but one spouse is classified under tax class III
Class VI: Individuals on multiple wages from more than one employer

In addition, there are GEZ taxes in Germany, for public broadcasting, if you are in a church you also have to pay church tax and if you have a dog you also have to pay dog tax.