This page is yer huckleberry:
http://www.zoll.de/english_version/a0_pass...ping/index.htmlThe purchase of goods in the retail trade is free of sales tax under the following presuppositions: You
* are resident in a third country and can prove this to the seller with personal identity documentation;
(Citizenship is irrelevant; only the place of residence is decisive. Thus, a Swiss citizen who is resident in Germany, for example, cannot purchase goods here tax free.)
* do not have a residence permit authorising you reside in this country for more than 3 months; and
* export the goods within 3 months (that is, before the end of the third month following the purchase) yourself in your personal travel luggage. Your personal travel luggage includes those objects that you have with you on crossing a border, for example hand luggage or the objects in a vehicle used by you as well as the luggage checked in connection with your travel. Hence, baggage sent beforehand or afterwards by post or forwarder does not fulfil the conditio