The study examines the role of foreign capital and remittance inflows in the domestic savings of 63 developing countries for 1971-2010, paying attention to likely differential effects of FDI, portfolio investment, foreign aid and remittance. The conventional homogeneous panel estimates suggest that foreign aid and remittance flows have a significant negative impact on domestic savings. However, these techniques ignore cross section dependence and parameter heterogeneity properties and thus yield biased and inconsistent estimates. When we allow for parameter heterogeneity and cross sectional dependence by employing the Pesaran’s (2006) Common Correlated Effects Mean Group estimator technique, only remittances crowd-out savings.