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Per the Article 18 of the US
-German tax treaty, alimony (means periodic payment made pursuant to a written separation agreement or a decree of divorce
separate maintenance, or compulsory support -- not child
support) is taxable to the recipient in the country where they reside. Here is the link to the treaty: http://apps2.irs
According to my international tax research sources and the US-German treaty, alimony is taxable to the recipient in Germany as it is in the US. If you were living in Germany, the alimony would be taxable on your German return and non-taxable on your US return as mentioned in the paragraph above.
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