Newman and Cain (Newman, Cain 2014 Psychol. Sci. 25 , 648–655 ( doi:10.1177/0956797613504785 )) reported that observers view a person's choices as less ethical when that person has acted in response to both altruistic and selfish (commercial) motivations, as compared with purely selfish interests. The altruistic component reduces the observers' approval rather than raising it. This puzzling phenomenon termed the ‘tainted altruism’ effect, has attracted considerable interest but no direct replications in prior research. We report direct replications of Newman and Cain's Experiments 2 and 3, using a larger sample ( n = 501) intended to be fairly representative of the US population. The results confirm the original findings in considerable detail.