Rare earth (Dy, Nd, Pr and Tb) metal soaps that can be used as stabilizers for PVC, were synthesized from lauric acid. The thermal stability studies of these samples were conducted by employing differential thermal analysis in dynamic nitrogen atmosphere. The results reveal that these metal laurates start to degrade at temperatures higher than those required for lauric acid. Dysprosium laurate is the most stable having a melting point of 145 degrees C.