Haley married Michael Haley on September 7, 1996. They celebrated with both Sikh and Methodist ceremonies. The couple have two children, Rena (b. 1998) and Nalin (b. 2001). Haley converted to Christianity in 1997. She and her husband regularly attend the United Methodist Church. She also attends Sikh services once or twice a year. She visited the Harmandir Sahib with her husband in 2014 during her visit to India. During a Christianity Today interview, when asked whether or not she hopes her parents convert to Christianity, Haley responded, "What I hope is that my parents do what's right for them." Her husband, an officer in the South Carolina Army National Guard, had a tour of duty in Afghanistan in 2013. Haley and her family reside on Kiawah Island, South Carolina, near the city of Charleston. Haley had an estimated net worth of $1 million in 2019. Her net worth grew to an estimated $8 million by 2022, propelled in part by book sales and joining the corporate boards of Boeing and United Homes Group.