There are several synonyms for the phrase "gets one's due," which means to receive the appropriate recognition or reward for one's efforts or actions. Some synonyms include "reaps what one sows," "gets what one deserves," "gets one's just desserts," and "receives one's fair share." These phrases all refer to the idea that a person will eventually receive some form of retribution or reward for their actions, whether positive or negative. They imply that justice or fairness will prevail and that a person's actions will not go unnoticed or unrewarded. Overall, each of these synonyms carries a similar connotation to "gets one's due" and suggests a sense of consequence or justice.