The 34-year-old musician, who made waves at the Grammy Awards by winning album of the year for the fourth time, is reportedly worth $1.1 billion (£874 million).
According to Forbes, no other musician has made as much money from her songs and performances as the American country-turned-pop singer.
Swift, who has become even more well-known due to her relationship with 34-year-old NFL star Travis Kelce, is one of 265 individuals who have added to the 2,781-strong list of billionaires in the last year.
With an estimated net worth of $5.6 billion (£4.45 billion), Sofia Högberg Schörling and her sister Märta Schörling Andreen are the wealthiest women to be added to the list. Melker Schörling is a Swedish investment billionaire.
With her shares in the Brazilian turbine firm, which her grandfather co-founded, Livia Voigt, 19, has inherited $1.1 billion (£874 million), making her the youngest billionaire in the world and the youngest of the newcomers.