Dent is the son of former ATP player and 1974 Australian Open finalist Phil Dent. Taylor's mother, Betty Ann Grubb Stuart, who has remarried, reached the U.S. Open doubles final in 1977 with Renée Richards. Grubb was a former top-10 singles player in the United States. Dent's half-brother, Brett Hansen-Dent, played on the ATP circuit for a short time after playing on the tennis team of the University of Southern California and reaching the singles final of the NCAA Men's Tennis Championship.