in most OECD tax treaties this problem is solved in this matter:
if it is not possible to find out where your primary residence was, you pay tax in your home country(passport).
BUT:
germany has NO tax treaty with Bahamas Singapore (not shure about Hongkong) , = tax heaven = special cases
you cant ask so complex questions without beeing more concrete;
if it is not possible to find out where your primary residence was, you pay tax in your home country(passport).
BUT:
germany has NO tax treaty with Bahamas Singapore (not shure about Hongkong) , = tax heaven = special cases
you cant ask so complex questions without beeing more concrete;