There are actually 2 Taufkirchens in the area.
Taufkirchen (bei Muenchen): A city district on the southern edge of Munich, home to one of the two IKEAs in Munich. IKEA can be reached via a free shuttle bus from the Taufkirchen S-Bahn station (S5).
Taufkirchen (Vils): Located approx. 60km north-east of Munich in Landkreis Erding. Pretty place, but not much happening except for the large hospital and asylum.